Software Engineer (Kotlin Multiplatform)

🏢 Summary: AI-first QA automation role focused on building and maintaining automated API, web, and mobile test suites while using autonomous testing agents. The role combines hands-on automation with quality decisions alongside engineers, product managers, and clients, with optional senior-level ownership of strategy and QA leadership. 🗂️ Requirements: English B2 minimum, REST API testing, HTTP, HTML and CSS knowledge, Programming ability in JavaScript, Java or Kotlin, Experience with an automation framework, Ability to configure autonomous testing tools from scratch, CI pipeline integration for automated tests, Daily use of AI testing tools, Submit an AI-built test, AI automation tool/setup, or video demonstration 📃 Skills: REST, HTTP, HTML, CSS, JavaScript, Java, Kotlin, Playwright, Appium, RestAssured, Claude, Codex, Cursor, CI 🏢 Description: What you'll do - Build and maintain automated test suites for API, web, and mobile products. - Work with modern AI testing tools and evaluate new tools as they evolve. - Decide what is worth testing and help determine whether products are ready to ship, collaborating with engineers, the product manager, and clients. What you should bring - Curiosity about testing and AI, with a willingness to explore new tools and identify how products can break. - English at B2 level or higher for client collaboration. - Strong testing fundamentals: knowing what to test and why, REST API testing, and solid knowledge of HTTP, HTML, and CSS. - Analytical ability to identify overlooked defects. - Programming ability in JavaScript, Java, or Kotlin, and experience with an automation framework such as Playwright, Appium, or RestAssured. - Ability to set up autonomous testing tools from scratch, configure them, integrate them with CI, and run pipelines against real builds. - Daily fluency with autonomous testing tools and Claude, Codex, or Cursor to generate, run, and maintain tests. How we work - Agentic coding is the default approach, using tools such as Claude Code, Codex, and Cursor. - Teams continuously test, measure, and adopt new approaches rather than relying on fixed processes. - Work is often organized in small, multidisciplinary teams of 3–5 people on a single project. - Your quality feedback directly influences what ships. Application task In the application form, share one of the following in the required question: - An AI-built automated test or test suite, such as a repository, demo, or link created and refined with Claude, Codex, or Cursor. - A skill, script, or setup that enables AI to perform testing work, such as a custom skill, agents.md, test harness, or prompt library. - A 2–3 minute video explaining how you test with AI, choose what to automate, have an agent write a test, and validate that it tests the right thing. For senior candidates - Several years of testing products used by real users, including substantial automation experience. - Ability to define and build a test strategy from scratch, including repositories, frameworks, and CI, and explain trade-offs involving time, quality, cost, and complexity. - Automation leadership through code reviews and unblocking the QA team. - Accountability for quality metrics such as stability and coverage. - Mentoring of QA colleagues and junior team members. - Direct client representation for quality topics, with English at C1 level or higher. What we offer - Work with a talented, creative, and experienced team. - Contribute to projects for clients around the world. - A schedule that fits your lifestyle. - Private health insurance, MultiSport card, HearMe platform, and additional benefits. - Remote work or work from the Kraków office.

🏢 Summary: Senior Android Engineer role in a greenfield product team building a large-scale banking application using Kotlin Multiplatform and Compose Multiplatform. The position focuses on developing shared UI and business logic, owning Android-specific integrations, and shaping architecture and engineering standards from the ground up. Strong emphasis on high-quality delivery, CI/CD practices, and daily use of AI-assisted development tools. 🗂️ Requirements: Minimum 5 years of native Android development experience, Expert-level proficiency in Kotlin, Strong experience with Jetpack Compose, Hands-on production experience with Kotlin Multiplatform (KMP), Experience with Compose Multiplatform, Deep understanding of MVVM, MVI, Clean Architecture, Experience building and maintaining Design Systems in Compose, Strong knowledge of Android platform specifics (lifecycle, permissions, notifications, Play Store), Experience with testing frameworks (JUnit, MockK, Compose UI testing), Experience with mobile CI/CD tools (GitHub Actions, Bitrise, Fastlane), Daily professional use of AI-assisted development tools (Claude Code, Cursor, GitHub Copilot) 📃 Skills: Kotlin, Android, KMP, Compose, MVVM, MVI, CleanArchitecture, JUnit, MockK, GitHubActions, Bitrise, Fastlane, Claude, Cursor, Copilot 🏢 Description: Hi, nice you are here! 😊 Embrace change with Efigence! We are a technology company established in 1995, where people are a priority. A team of over 150 technology enthusiasts allowed us to implement hundreds of projects in the banking, insurance, e-commerce and other sectors. Many of them have gained recognition by winning awards in prestigious competitions. We are building a new, dedicated product team for a large-scale banking application and looking for a Senior Android Engineer to join from the ground up. This is a greenfield team setup - you will have direct influence on how the team works, what standards it follows, and how the product evolves. The application is built entirely on Kotlin Multiplatform (KMP) with Compose Multiplatform for shared UI across Android and iOS. We need people who work with agility - who thrive in short iterations, understand what they are building and why, and take ownership of delivering high-quality solutions end-to-end. Your Android expertise will be essential for platform-specific integrations and performance, but equally important is your ability to think in product terms: understanding user needs, challenging requirements, and proposing better approaches. Proficient, daily use of Agentic Engineering tools (Claude Code, Cursor) is a core expectation. Your Responsibilities: 🔹Design, develop, and maintain shared UI components and screens using Compose Multiplatform 🔹Contribute to shared business logic layer using Kotlin Multiplatform 🔹Own Android-specific platform integrations (permissions, notifications, biometrics, deep linking, app lifecycle) 🔹Build, extend, and maintain Design System components in Compose Multiplatform — ensure consistency, reusability, and alignment with design specifications across the product 🔹Participate actively in product discovery and sprint ceremonies — understand the why behind every feature, challenge assumptions, and propose better solutions 🔹Deliver working software in short iterations with high quality — own your work from concept through production 🔹Collaborate on architecture decisions and help establish best practices for the KMP/CMP codebase 🔹Write clean, testable, and well-documented code following Clean Architecture principles 🔹Conduct thorough code reviews focused on quality, consistency, and shared standards 🔹Collaborate closely with iOS engineers, backend teams, QA, product managers, and designers in a cross-functional product team 🔹Continuously improve development processes, tools, and CI/CD pipelines 🔹Leverage Agentic Engineering tools (Claude Code, Cursor, GitHub Copilot) daily for code generation, refactoring, test writing, and architectural exploration Who Are We Looking For? ✅Minimum 5 years of professional experience in native Android development ✅Expert-level proficiency in Kotlin ✅Strong experience with Jetpack Compose and Compose Multiplatform ✅Hands-on experience with Kotlin Multiplatform (KMP) in production environments ✅Deep understanding of architecture patterns: MVVM, MVI, Clean Architecture ✅Experience working with and contributing to a Design System — building reusable UI components, maintaining component libraries, ensuring design-to-code fidelity ✅Proven ability to work in agile, cross-functional product teams — short iterations, continuous delivery, close collaboration with product and design ✅Strong knowledge of Android platform specifics: lifecycle, permissions, notifications, Play Store distribution ✅Solid experience with testing frameworks (JUnit, MockK, Compose UI testing) ✅Proficiency with CI/CD tools and processes for mobile applications (GitHub Actions, Bitrise, Fastlane) ✅Proficient, daily use of AI-assisted development tools (Claude Code, Cursor, GitHub Copilot) — ability to write effective prompts, critically verify AI outputs, and integrate these tools into standard engineering workflows ✅Product thinking — demonstrated ability to understand business context, user needs, and communicate technical trade-offs to non-technical stakeholders ✅Fluency in Polish and English (written and spoken) ✅Availability for occasional on-site sessions in Warsaw (workshops, kickoffs, planning events) ✅Ownership mindset — responsible for outcomes, not just tasks, with a proactive, can-do approach to problem-solving ✅Clear communicator and collaborative team player, comfortable working in a new and evolving team ✅Growth mindset with continuous learning and openness to experimenting with AI tools and sharing best practices Nice to Have: ✅Experience in fintech or banking sector ✅Knowledge of security best practices for financial applications ✅Experience with iOS platform specifics (helpful for shared UI debugging) ✅Experience with feature flags and A/B testing frameworks ✅Familiarity with Ktor (client and/or server-side) ✅Contributions to open-source projects ✅Experience working at scale (large user base, complex systems) ✅Experience joining or building a team from scratch What Can You Expect from Us? 🌍Fixed-term contract – with the possibility of extension 🌍Career & Development – Trainings, workshops, and collaboration with top industry experts 🌍Exciting Challenges – Work with leading financial market brands and award-winning projects 🌍Supportive Team – Knowledge sharing during Wednesday Wisdom meetings & tech breakfasts 🌍Autonomy & Innovation – We welcome your ideas and initiatives 🌍Stable Collaboration – Clear, transparent B2B agreements in line with current regulations, ensuring mutual trust and predictability 🌍Work-Life Balance – Flexible working hours and a culture that values personal time 🌍Hybrid or Remote Work Model – It’s up to you 🌍Perks & Benefits – Private medical care, Multisport card, English lessons, training budget, and more 🌍Trust & Transparency – Open communication and a culture of feedback Join us as a Senior Android Engineer (Kotlin Multiplatform) and help shape cutting-edge cross-platform solutions while working in a collaborative, growth-focused team!

🏢 Summary: Senior iOS Engineer role in a greenfield product team building a large-scale banking application using Kotlin Multiplatform and Compose Multiplatform. The position focuses on iOS platform integrations, native API bridging, shared UI development, and establishing best practices for KMP on iOS. You will own end-to-end delivery, contribute to architecture, and leverage AI-assisted engineering tools daily. 🗂️ Requirements: Minimum 5 years of professional experience in native iOS development, Expert-level proficiency in Swift, Working knowledge of Objective-C, Hands-on experience integrating Kotlin Multiplatform in iOS projects, Working knowledge of Kotlin and Compose Multiplatform, Strong understanding of iOS internals (UIKit/SwiftUI lifecycle, Keychain, ATS, entitlements, provisioning), Experience with MVVM, MVI, Clean Architecture, Experience building and maintaining Design Systems, Experience with Xcode build system and CocoaPods or SPM integration, Experience with testing frameworks for iOS and KMP, Experience with CI/CD for mobile applications, Daily proficiency with AI-assisted development tools (Claude Code, Cursor, GitHub Copilot), Fluency in Polish and English, Availability for occasional on-site work in Warsaw 📃 Skills: Swift, Objective-C, Kotlin, KMP, Compose, UIKit, SwiftUI, Xcode, CocoaPods, SPM, XCTest, Quick, Nimble, CI/CD, MVVM, MVI, ATS, Ktor, Claude, Cursor, Copilot 🏢 Description: Hi, nice you are here! 😊 Embrace change with Efigence! We are a technology company established in 1995, where people are a priority. A team of over 150 technology enthusiasts allowed us to implement hundreds of projects in the banking, insurance, e-commerce and other sectors. Many of them have gained recognition by winning awards in prestigious competitions. We are building a new, dedicated product team for a large-scale banking application and looking for a Senior iOS Engineer to join from the ground up. This is a greenfield team setup — you will have direct influence on how the team works, what standards it follows, and how the product evolves. The application is built entirely on Kotlin Multiplatform (KMP) with Compose Multiplatform for shared UI across Android and iOS. Your deep understanding of the iOS platform will be critical for platform-specific integrations, bridging native APIs, ensuring smooth App Store distribution, and optimizing the Compose Multiplatform experience on iOS. We need people who work with agility — who thrive in short iterations, understand what they are building and why, and take ownership of delivering high-quality solutions end-to-end. Equally important is your ability to think in product terms: understanding user needs, challenging requirements, and proposing better approaches. Fluent use of Agentic Engineering tools (Claude Code, Cursor) is a core expectation, not a bonus. Your Responsibilities: 🔹Contribute to shared UI development using Compose Multiplatform, ensuring excellent rendering and performance on iOS 🔹Own iOS-specific platform integrations: Keychain, biometrics (Face ID/Touch ID), push notifications, deep linking, app lifecycle, permissions 🔹Bridge native iOS APIs (Swift/Objective-C) with the KMP shared layer using expect/actual and native interop 🔹Build, extend, and maintain Design System components in Compose Multiplatform — ensure iOS platform fidelity, consistency, and reusability across the product 🔹Participate actively in product discovery and sprint ceremonies — understand the why behind every feature, challenge assumptions, and propose better solutions 🔹Deliver working software in short iterations with high quality — own your work from concept through production 🔹Collaborate on architecture decisions and help establish best practices for KMP/CMP on the iOS side 🔹Write clean, testable, and well-documented code following Clean Architecture principles 🔹Conduct thorough code reviews focused on quality, consistency, and shared standards 🔹Manage iOS-specific build, signing, and App Store submission processes 🔹Collaborate closely with Android engineers, backend teams, QA, product managers, and designers in a cross-functional product team 🔹Continuously improve development processes, tools, and CI/CD pipelines 🔹Use Agentic Engineering tools (Claude Code, Cursor, GitHub Copilot) daily for code generation, refactoring, testing, and exploration Who Are We Looking For? ✅Minimum 5 years of professional experience in native iOS development ✅Expert-level proficiency in Swift; working knowledge of Objective-C for interop scenarios ✅Strong understanding of iOS platform internals: UIKit/SwiftUI lifecycle, Keychain, App Transport Security, entitlements, provisioning ✅Hands-on experience with Kotlin Multiplatform (KMP) integration in iOS projects ✅Working knowledge of Kotlin and Compose Multiplatform sufficient for daily contribution to shared code ✅Deep understanding of architecture patterns: MVVM, MVI, Clean Architecture ✅Experience working with and contributing to a Design System — building reusable UI components, maintaining component libraries, ensuring design-to-code fidelity across platforms ✅Proven ability to work in agile, cross-functional product teams — short iterations, continuous delivery, close collaboration with product and design ✅Experience with Xcode build system, CocoaPods/SPM integration with KMP frameworks ✅Solid experience with testing frameworks (XCTest, Quick/Nimble, and KMP shared test suites) ✅Proficiency with CI/CD tools and processes for mobile applications ✅Proficient, daily use of AI-assisted development tools (Claude Code, Cursor, GitHub Copilot) — effective prompting, critical verification of outputs, integration into engineering workflows ✅Product thinking — ability to understand business context, empathize with users, and communicate trade-offs to non-technical stakeholders ✅Fluency in Polish and English (written and spoken) ✅Availability for occasional on-site sessions in Warsaw (workshops, kickoffs, planning events) ✅Ownership mindset — responsible for outcomes, not just tasks, with a proactive, can-do approach to problem-solving ✅Clear communicator and collaborative team player, comfortable working in a new and evolving team ✅Growth mindset with continuous learning and openness to experimenting with AI tools and sharing best practices Nice to have: ✅Experience in fintech or banking sector ✅Knowledge of security best practices for financial applications ✅Experience with iOS platform specifics (helpful for shared UI debugging) ✅Experience with feature flags and A/B testing frameworks ✅Familiarity with Ktor (client and/or server-side) ✅Contributions to open-source projects ✅Experience working at scale (large user base, complex systems) ✅Experience joining or building a team from scratch What Can You Expect from Us? 🌍Fixed-term contract – with the possibility of extension 🌍Career & Development – Trainings, workshops, and collaboration with top industry experts 🌍Exciting Challenges – Work with leading financial market brands and award-winning projects 🌍Supportive Team – Knowledge sharing during Wednesday Wisdom meetings & tech breakfasts 🌍Autonomy & Innovation – We welcome your ideas and initiatives 🌍Stable Collaboration – Clear, transparent B2B agreements in line with current regulations, ensuring mutual trust and predictability 🌍Work-Life Balance – Flexible working hours and a culture that values personal time 🌍Hybrid or Remote Work Model – It’s up to you 🌍Perks u0026amp; Benefits – Private medical care, Multisport card, English lessons, training budget, and more 🌍Trust & Transparency – Open communication and a culture of feedback Join us as a Senior iOS Engineer (Kotlin Multiplatform) and help shape cutting-edge cross-platform solutions while working in a collaborative, growth-focused team!

🏢 Summary: Android Software Engineer role focused on building a high-performance, reliable AI-powered mobile app. The position involves integrating chat, image, voice, and recommendation capabilities through backend APIs while optimizing performance, stability, and user experience. 🗂️ Requirements: 3+ years of Android development experience, Kotlin experience, AI feature integration experience, Coroutines and Flow knowledge, REST or gRPC API experience, Structured data experience, Debugging skills, Performance optimization skills, Ability to work with delayed or unpredictable system results, Google Play publishing experience 📃 Skills: Android, Kotlin, Java, SQL, NoSQL, Coroutines, Flow, REST, gRPC, TensorFlowLite, MLKit, GooglePlay 🏢 Description: Role As an Android Software Engineer, you will build and improve an Android app with AI as a core part of the product. You will ensure AI works effectively on mobile devices and delivers a smooth user experience, with a strong focus on performance, reliability, and usability. Main Responsibilities • Build and maintain Android applications using Kotlin. • Add AI features such as chat, image, voice, and recommendation tools through backend APIs. • Create user-friendly AI experiences, including live responses, retries, and partial results. • Improve app speed, memory use, and overall performance. • Add analytics, logging, and user feedback tools to help improve AI features. • Work closely with backend and machine learning engineers. • Keep the app stable, secure, and ready to grow. Requirements • At least 3 years of Android development experience with Kotlin. • Experience working with AI features, such as language models, image, or speech APIs. • Good knowledge of asynchronous programming with Coroutines and Flow. • Experience using REST or gRPC APIs and structured data. • Strong debugging and performance optimization skills. • Comfortable working with systems where delays or unexpected results can happen. • Experience with ML Kit or TensorFlow Lite is a plus. • Experience publishing Android apps on Google Play. Expected Results • Build Android apps that are stable, smooth, and reliable. • Create fast applications with good memory and CPU performance. • Find and fix production issues quickly using monitoring and clear problem analysis. Technologies • Kotlin / Java • SQL / NoSQL • TensorFlow Lite How We Work We believe the best products are created by small and highly skilled teams. We work closely together, make decisions as a team, and move quickly. We focus on delivering high-quality work while always learning and improving. We expect team members to work independently, make good decisions, and stay organized. Our goal is to build an AI product that people enjoy using every day. Interview Process If your experience matches what we are looking for, you will be invited to 3 or 4 interviews. The technical team reviews all applications. Interviews are held online or in person, and the process is intended to be fast and clear. Candidates who demonstrate the required skills and attitude may receive an offer to join the team. The role is suited to people excited to help build AI products that improve daily life for millions of users.

🏢 Summary: Senior QA Engineer role focused on ensuring quality across multiple green‑field web, mobile, and SaaS products while co‑building an AI‑native development system. The position emphasizes advanced test strategy design, automation with modern frameworks, and integration of AI tools to accelerate testing processes. You will own the full QA lifecycle in a remote, cross‑functional, international environment. 🗂️ Requirements: Deep experience in manual and automated testing for production web and mobile applications, Proficiency in Playwright, Cypress, Selenium, Experience with modern test automation frameworks (Jest, Mocha, TestNG), Experience testing REST and GraphQL APIs, Experience in mobile app testing (iOS, Android), Ability to design test strategies, regression and performance testing, Experience with CI/CD integration and test automation pipelines, Experience with API testing and performance testing tools, Knowledge of version control systems, Experience working with distributed remote teams, Fluent English 📃 Skills: Playwright, Cypress, Selenium, Jest, Mocha, TestNG, REST, GraphQL, Postman, RESTAssured, Newman, JMeter, k6, Appium, Detox, XCUITest, Espresso, Git, Jira, AzureDevOps, Claude, CI/CD 🏢 Description: Ready to ensure flawless user experiences with AI at your side? We're assembling an AI‑enhanced product‑delivery team in Poland in partnership with Rimthan Corporate Venture Builder (Riyadh, Saudi Arabia) . If you love comprehensive testing strategies, automation frameworks like Playwright & Cypress , and experimenting with cutting‑edge AI dev tools like Claude Code , let's talk! The Opportunity Join us as a Senior QA Engineer and help ensure the quality of multiple green‑field products - from marketplace platforms to internal SaaS - while co‑building our in‑house AI‑native development system . You'll: Test smarter, ship faster with Claude Code, AI‑powered test generation, and whatever ingenious tools you suggest. Design & execute comprehensive test strategies covering web apps, mobile applications, and API integrations. Build & maintain automated test suites using Playwright, Cypress, and modern testing frameworks. Develop our AI‑native platform for developers - your feedback and features go straight into the product roadmap. Collaborate remotely with developers, designers, PMs, and engineers across Poland and Saudi Arabia on several ventures at once. Own the quality lifecycle : test planning, execution, automation, performance testing, and continuous integration. Champion best practices in test automation, quality assurance processes, and modern testing workflows. Why You'll Love Working with Us AI at the Core - We're not just using AI; we're building AI tools that make QA teams 10× more productive - and you'll be a key contributor. Remote‑First Freedom - Work anywhere in Europe. Flexible hours and a supportive culture focused on outcomes, not clock‑watching. Startup Energy + Venture‑Studio Stability - Tackle new ideas every quarter with the backing of an established venture builder. Competitive B2B Compensation - 16 000-22 000 PLN / month (depending on experience). Continuous Growth - Access to conferences, QA workshops, AI testing seminars, and internal hackathons to keep your skills razor‑sharp. Friendly, Multicultural Team – Collaborate daily with passionate engineers and product folks who love quality code, good memes, and sharing knowledge. You Might Be a Good Fit If You… Have deep experience in both manual and automated testing for production web and mobile applications. Are fluent with Playwright, Cypress, Selenium, and modern test automation frameworks (Jest, Mocha, TestNG). Have extensive experience testing mobile apps (iOS/Android), web applications, and REST/GraphQL APIs. Have already experimented with Claude Code or other AI pair‑programming tools for test creation and maintenance. Master test strategy design , exploratory testing, regression testing, and performance testing methodologies. Communicate confidently in English (Polish is a bonus - many teammates are Polish). Thrive in fast‑paced, ambiguous environments where you switch between projects and wear many hats. Have proven experience working with remote, distributed teams across different time zones. Believe in quality craftsmanship - CI/CD integration, test data management, and comprehensive test documentation are second nature. Experience with API testing tools (Postman, REST Assured, Newman) and performance testing (JMeter, k6). Knowledge of mobile testing frameworks (Appium, Detox, XCUITest, Espresso) and device testing strategies. Understanding of agile methodologies , bug tracking systems (Jira, Azure DevOps), and version control (Git). About Our Partnership Rimthan Corporate Venture Builder launches and scales digital ventures across the Middle East. We're their dedicated Polish delivery powerhouse , bringing European engineering excellence to a global portfolio of disruptive products. Together, we combine startup agility with enterprise‑grade resources - so your testing ensures real users get flawless experiences. Sound like your kind of challenge? Hit "Apply" and let's build AI‑powered quality assurance processes the world hasn't seen yet!

🏢 Summary: Freelance Senior Android Developer role focused on building and maintaining high-performance Android applications for IoT and connected device projects. The position involves developing Kotlin-based apps, integrating with Bluetooth Low Energy peripherals, and contributing to architecture and code quality in a remote environment. It offers collaboration on upcoming IoT projects with potential for long-term engagement. 🗂️ Requirements: 3+ years of commercial Android development experience, Strong experience with Kotlin, Experience with Kotlin Coroutines, Experience writing Unit Tests / TDD, Knowledge of Koin and Hilt, Knowledge of Jetpack Compose, Experience with Bluetooth Low Energy communication, B2 level English (written and spoken), Experience reviewing code and maintaining high-quality standards 📃 Skills: Android, Kotlin, Coroutines, UnitTesting, TDD, Koin, Hilt, JetpackCompose, BLE, JUnit, Mockito, Robolectric, MVP, Flutter, Jira, Confluence 🏢 Description: In short If you're a Senior Android Developer who knows BLE inside out and isn't afraid of code that talks to physical things, we want to talk. You'd join us on a freelance, time & material basis: you're paid for the hours you actually work on real client projects. The first three months are about figuring out if we're a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there's a real path to our core team with a permanent contract and full benefits. Why intent? We've been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We're 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. If your Kotlin has ever made a physical device do something it couldn't do before, you already get why we love what we do. Who this role is NOT for If you like being told exactly what to build every morning, opening Jira, closing Jira, and logging off at 17:01, we're probably not your people. We look for engineers who ask "why" before "how", challenge assumptions, and occasionally break things because they were trying something new. We're AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when things get complicated, and the kind of curiosity that makes you actually care about the device on the other end of your Bluetooth connection. What you'll do Design, build, and maintain Android apps that communicate with hardware peripherals over BLE Write performant, reusable, and reliable Kotlin code, the kind people don't dread inheriting Take part in specifying, planning, and estimating new modules and features Cover your code with unit tests and keep a TDD mindset where it makes sense Review pull requests and give your teammates feedback that actually helps Hunt down bottlenecks and bugs, including the ones that only show up on one OEM Share what you learn: tech talks, internal docs, pair sessions, whatever fits Use AI tools as part of your daily workflow, not as a party trick What we're looking for 3+ years writing production Android in commercial projects Strong Kotlin (not "I read about coroutines once") Hands-on BLE integration experience: real apps talking to real peripherals Jetpack Compose in production Comfort with popular Android libraries: Koin, Hilt, and the modern stack Unit testing discipline (JUnit, Mockito, Robolectric, or similar) with a TDD mindset English at B2+, written and spoken, because our clients are mostly US-based Problem-solving over line-counting: we'll take a creative thinker over a fast typist any day High coding standards and an eye on what's new in the Android world Initiative, ownership, and the kind of communication where people don't have to guess what you meant Nice to have Solid grasp of architecture and design patterns Previous IoT or connected device projects Functional reactive programming (Flow, RxJava) Google Play release experience and Android Auto Agile or Scrum delivery experience Some Flutter experience Genuine curiosity about the things you build, not just the code behind them How we work Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you're not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that's when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You'll be part of the Mobile chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery. What you'll get 90-180 PLN/h net B2B, depending on your experience Truly flexible hours: you organize your day Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them Access to our internal knowledge-sharing: tech talks, experiments, side projects When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there's a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget No sugarcoating: during the freelance period there's no paid leave or medical benefits. Those come with the permanent contract, and we're transparent about that upfront. Your first weeks We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we'll make sure you have the support to hit the ground running. You'll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn't working. If it's great, you'll know. If something needs adjusting, you'll hear about it while there's still time to adjust. Recruitment process The entire process is in English. All interviews are recorded for internal evaluation purposes. Application with a few screening questions HR call, ~45 min, casual Technical meeting, ~90 min, with the technical team (may include live coding) Final feedback within a few days Once we're in touch, you'll hear from us fast. We don't ghost and we don't drag. One more thing intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you've built that made you proud.

🏢 Summary: Senior AI-native full-stack engineer role focused on building and owning production-grade agentic systems end-to-end, from architecture to deployment and on-call. The position involves developing multi-agent workflows, RAG pipelines, and AI infrastructure, as well as delivering client-facing B2B solutions on top of an internal agent platform. Strong ownership, hands-on LLM production experience, and full-stack execution across frontend, backend, and cloud infrastructure are required. 🗂️ Requirements: 5+ years of production software engineering experience, 1-2+ years building and operating LLM systems in production, Experience deploying agentic systems with real users, Strong full-stack development experience, Hands-on experience with LLM APIs, RAG, prompt engineering, Experience with at least one agentic framework or custom orchestration, Ability to design, ship, and maintain systems end-to-end, Experience with cloud infrastructure and production deployments, Strong written English 📃 Skills: TypeScript, React, Node.js, Python, PostgreSQL, AWS, Anthropic, OpenAI, LangGraph, CrewAI, RAG, LLM, APIs, SQL, VectorDB 🏢 Description: Who we are AgentX is a platform for building and running production AI agents — and a team that ships real systems on top of it for clients who need more than a demo. The platform is the infrastructure: orchestration, memory, tools, evals, deployment — the layer that makes agentic systems actually work in production, not just in a notebook. On top of it, we build end-to-end solutions for our clients. One of the systems running on AgentX today is KsięgoBoty — a multi-agent product used daily by hundreds of Polish accounting firms. Paying customers, production load, real consequences when something breaks. We've also done to ourselves what we build for others: restructured how we work around AI tools, agent-first architectures, and a delivery model that doesn't need a Jira layer between thinking and shipping. This isn't theory — it's how we operate every day. Who we're looking for A senior engineer who owns outcomes, not tasks. This isn't a role for someone who's shipped "an LLM demo at a hackathon." We need someone who has already put agentic systems into production — with real users, real edge cases, real 2am Slack messages when something goes sideways. If you need a PM to translate the problem, a Jira board with three rounds of grooming, and acceptance criteria to tell you what "done" means — this isn't for you, and that's fine. If instead you read a Slack message like "accountants are losing 2 hours a day reconciling this" and your brain immediately jumps to "okay, what does the user actually need, what's the simplest thing that works, and how do we ship it" — keep reading. You'll own problems end-to-end. Frontend, backend, the agent layer, the deploy, the follow-up when a customer hits something weird. You decide what to build, you build it, you ship it, you watch what happens. And you get that this actually matters. On the other end of every feature there's an accountant closing books at 9pm, a firm owner trying to keep their business running. It's not just code. What "AI-native" actually means here Not "I've used ChatGPT." We mean: Claude Code / Cursor / Codex is your IDE , not a plugin you switch on when you feel like it. You know when "accept all" is safe and when it absolutely isn't. You have strong opinions on agent orchestration — when to reach for LangGraph/CrewAI/Agno vs. when to write 50 lines of plain Python that work better. You understand production reality of LLM systems — guardrails, evals, observability, retry logic, cost control, what to do when a model is non-deterministic in a way that breaks your contract with the user. You can tell when a model is the wrong tool and reach for code instead. For you, AI is a tool — not the point. What you'll actually own Agentic systems in production — multi-step workflows, RAG pipelines, agent orchestration. From architecture decision to deployment to the 3am on-call when something drifts. The AgentX platform itself — the primitives, the orchestration layer, the evals, the deployment story. You're building the thing that makes every client engagement faster and more reliable than the last. Full-stack client solutions on top of AgentX — TypeScript/React on the frontend, Python on the backend, integrated with LLM providers (Anthropic, OpenAI, others as they come). Infrastructure that holds up — Postgres, AWS, vector stores, ingestion pipelines, the unsexy layer that makes everything else possible. Quality standards for AI systems — you help us define what "good" looks like. Evals, guardrails, failure modes. Because "mostly right but wrong in scary ways" is not a feature. Our stack TypeScript, React, Node.js, Python, PostgreSQL, AWS, Anthropic + OpenAI APIs, agentic frameworks. You don't need every box ticked — you need to be the kind of specialist who picks up unfamiliar pieces quickly and confidently. What we expect (must-haves) 5+ years shipping production software , at least 1-2 of them with real LLM systems in production — not side projects, not demos Strong full-stack background — you're comfortable owning from frontend to infra, even if your center of gravity is one side AI-native coding workflow — Claude Code, Cursor, Codex, whatever — as your daily driver Hands-on with LLM APIs, RAG, prompt engineering, and at least one agentic framework (or you've built your own orchestration and have opinions on why) Strong written English — you'll communicate with clients, partners, and async teammates Ability to run a project from discovery to delivery with minimal supervision — we'll align on outcomes, you'll figure out how Nice-to-have Experience building B2B SaaS for non-technical users (SMBs, professional services) Voice agents, real-time systems (LiveKit or similar) Accounting / fintech / regulated domain exposure How we work Fast pace, but Monday to Friday. Weekends are yours. We don't do crunch, we don't do fake urgency, we don't do meetings that could've been a message. We'd rather ship steadily for years than sprint for six months and lose you. Direct line to the founder. Direct line to clients. No process layer between you and the work. Small team, real decisions, real ownership. The honest pitch Real ownership of real product areas — not a seat on a feature factory Frontier work — you're building both the platform that makes production agents work and the client systems running on top of it Compensation that reflects seniority — 14 000 – 25 000 PLN netto + VAT (B2B), with room above for someone exceptional Fully paid AI stack — Claude Max, Cursor, whatever you need to work at full speed Remote-first , flexible hours, Poland-based No filler meetings, no Jira bloat — we measure shipped systems in production, not hours logged Push back on the founder when he's wrong. He will be, regularly. How the process works 1. You send us stuff recruitment@agentx.so Your CV — yes, we read them One thing you built end-to-end you're proud of — and what you'd change about it today One AI product (yours or someone else's) you think is genuinely good, and why Your take: a client says our agent is "mostly right but wrong in ways that scare them." What do you do first? 2. We reply within 2-3 days — either "let's talk" or "not this time, here's why." No black hole. 3. We meet — 30-45 min call with the founder. We talk about your work, you ask us hard questions. If the chemistry isn't there, no hard feelings. 4. Problem-solving session (top 2-3 candidates) — we give you a real problem we're working on. You come back with how you'd approach it: your thinking, your trade-offs, your questions. We're not watching over your shoulder. We want to see how you think. 5. Decision within 2-3 days. If yes — you start when you're ready. Tomorrow, next week, after notice period. Your call.

🏢 Summary: The offer is for a senior QA Engineer to work on a mature SaaS event platform supporting web and white-label mobile applications, with a strong focus on live streaming and real-time event features. The role involves end-to-end quality ownership, including test strategy, API validation, automation maintenance, and close collaboration with product and engineering teams. You will contribute to ensuring stability and reliability of a large-scale enterprise event system used in high-risk production environments. 🗂️ Requirements: 5+ years of QA experience in SaaS, Web, or Mobile applications, Experience testing back-office tools, CMS platforms, or admin dashboards, Strong experience with REST API testing and JSON validation, Ability to define end-to-end test strategies across SDLC, Proficiency in GitHub and reviewing Pull Requests, Experience maintaining and developing test automation suites, Ability to debug frontend applications built with modern JavaScript frameworks, ISTQB Foundation certification or higher, Fluent English 📃 Skills: REST, JSON, Postman, GitHub, Selenium, Cypress, Playwright, JavaScript, React, Vue, Angular, ISTQB, SDLC, API, CMS 🏢 Description: About the Project This role is part of a long-term cooperation where Miquido is building a dedicated engineering team working directly with the client’s internal product teams . You will be contributing to the development and quality assurance of a mature SaaS platform that powers virtual, hybrid, and onsite enterprise events . It is a large-scale event platform built on one codebase, supporting white-label mobile applications (iOS/Android) and a browser-based web application , with a strong focus on real-time event execution. A key part of the ecosystem is Backstage — the central web-based admin panel where events are configured, branded, and managed. The product includes critical features such as event agendas, attendee registration, mass mailing, CRM exports, and especially live streaming , which is one of the most business-critical areas of the platform. . Because you will be working in a truly international environment, fluent English is a must-have. Responsibilities SDLC Integration: Contribute at every stage from initial scoping and test strategy to release and post-release verification in production. Risk Hunting: Identify risk areas early in the sprint and surface them before they become blockers. Test Execution: Design and execute test scenarios rooted in real user workflows, boundary conditions, and edge cases. Automation Maintenance: Identify manual flows for automation, develop new coverage, and maintain existing suites to reduce flakiness. API & Debugging: Inspect REST API request/response flows, validate JSON payloads, and debug headers using Postman. Defect Management: Reproduce, document, and prioritize defects with clear steps and supporting evidence. Squad Collaboration: Partner closely with QA, Product, and Engineering teams to adjust the development trajectory of in-flight features. Must Have 5+ Years of Experience: Proven track record in Quality Assurance for SaaS, Web, or Mobile applications. System Deep-Dive: Solid experience testing back-office tools, CMS platforms, and admin-facing dashboards. API Mastery: You must be confident inspecting REST API request/response flows, validating JSON payloads, and debugging headers using Postman. SDLC Strategy: Demonstrated ability to define end-to-end testing strategies from initial scoping through to post-release verification in production. Code Literacy: Proficient with GitHub; you must be able to read Pull Requests, understand code changes, and leave informed review comments. Automation & Stability: You will identify manual flows to be automated and actively maintain existing suites (e.g., Selenium, Cypress, or Playwright) to reduce flakiness and ensure a trustworthy test signal. Frontend Debugging: Knowledge of JavaScript (React/Vue/Angular) sufficient to read component code and debug how frontend state interacts with backend APIs. Certification: ISTQB Foundation level or above is required. What We Offer Opportunity to work with a global product company on a mature and impactful platform Real influence on product stability and user experience in high-risk event scenarios Collaboration with international engineering and product teams A chance to help scale QA practices in a growing environment Long-term project stability and strong product mindset culture We value your trust in providing us your data, thus we are striving to use commercially acceptable means of protecting it. Below you will find the necessary information about the data we collect and process when you send us your CV. The controller of your personal data is Miquido Spółka z ograniczoną odpowiedzialnością sp. k. with its seat in Krakow, Zabłocie 43a, 30-701 Kraków, Poland (“Miquido”, “We”, “Our” or “Us”). See more

🏢 Summary: Senior backend engineering role focused on building and scaling AI-driven systems, including APIs, data pipelines, LLM orchestration, and distributed workloads on confidential production data. The position involves architecting reliable backend infrastructure for retrieval, streaming, embeddings, and integrations while ensuring security and scalability. 🗂️ Requirements: 7+ years building production backends, 6+ years of Python experience, 3+ years of FastAPI experience, 2+ years of Redis experience, Experience with PostgreSQL and SQL, Experience with distributed and async workloads, Experience with LLM systems, Knowledge of RAG or tool-calling systems, Ability to design scalable backend architectures, Experience with AI coding tools 📃 Skills: Python, FastAPI, PostgreSQL, SQL, Redis, LLM, RAG, LangChain, LlamaIndex, APIs, Embeddings, Streaming 🏢 Description: About us comm1t is a specialist IT recruitment agency delivering top engineers across Poland and Europe 🇪🇺. We combine experienced recruiters with autonomous AI agents and an obsessive focus on quality — sourcing 24/7 across LinkedIn, GitHub, and beyond to reach engineers who aren't actively job hunting but are open to the right move. We don't flood you with CVs. We get to know each candidate's skills, values, and goals, then send only the best-matched people — and we stay close through onboarding and the first months to make sure the placement lasts. About the role You'll lead the backend that drives the AI features — the APIs, the data pipelines, and the orchestration that connects the product to the language models doing the actual work. In practice that's querying across large document sets, getting trustworthy answers out of LLMs and their tool calls, pushing results to the UI as they stream, and grinding through lengthy background jobs without the whole thing toppling over. Forget CRUD. The real difficulty is making AI systems fast and reliable on confidential data, at production scale. The architecture choices land on you early, and you'll be the one living with them. What you'll do Architect and ship the APIs and services that everything else depends on Own the AI plumbing end to end: retrieval, orchestration, tool-calling, streaming, and the evals that tell you whether the results are worth anything Make async and distributed workloads rock-solid — document ingestion, embeddings, and long jobs running on Redis Wire up integrations with what clients already use (email, document stores) and harden them for real-world traffic Put data security and isolation front and center, because clients are handing over material they can't afford to leak Who you are Seven years or more delivering production backends — though how deep you go matters more to us than the figure itself You think in failure modes, not just the happy path You've shipped genuine LLM systems (RAG, tool-calling, agents), or you can't wait to — and you've got a feel for where they fall apart You lean on AI coding tools (Claude Code, Cursor, Copilot) and get real value from them: more speed, yes, but you grasp and back every line — code you'd reject in someone else's review is code you won't merge in your own A startup that keeps changing course doesn't faze you — plans get set, then torn up and redrawn Tech stack experience Python: 6+ years FastAPI: 3+ years PostgreSQL / SQL Redis: 2+ years Nice to have RAG or vector search experience LangChain or LlamaIndex

🏢 Summary: Senior backend engineering role focused on building scalable AI infrastructure, APIs, and distributed systems powering LLM-based products. The position involves architecting retrieval, orchestration, streaming, and secure data processing pipelines for production-grade AI systems. Candidates are expected to work hands-on with Python backend technologies and AI integrations in a fast-changing startup environment. 🗂️ Requirements: 7+ years building production backend systems, 6+ years of Python experience, 3+ years of FastAPI experience, 2+ years of Redis experience, Experience with PostgreSQL and SQL, Experience delivering LLM systems, Knowledge of RAG, tool-calling, or AI agents, Experience with async and distributed workloads, Ability to design scalable APIs and services, Understanding of data security and isolation, Experience with integrations such as email or document stores, Ability to work in a changing startup environment 📃 Skills: Python, FastAPI, PostgreSQL, SQL, Redis, LLM, RAG, LangChain, LlamaIndex, APIs, Embeddings, Streaming, Tool-calling 🏢 Description: About us comm1t is a specialist IT recruitment agency delivering top engineers across Poland and Europe 🇪🇺. We combine experienced recruiters with autonomous AI agents and an obsessive focus on quality — sourcing 24/7 across LinkedIn, GitHub, and beyond to reach engineers who aren't actively job hunting but are open to the right move. We don't flood you with CVs. We get to know each candidate's skills, values, and goals, then send only the best-matched people — and we stay close through onboarding and the first months to make sure the placement lasts. About the role You'll lead the backend that drives the AI features — the APIs, the data pipelines, and the orchestration that connects the product to the language models doing the actual work. In practice that's querying across large document sets, getting trustworthy answers out of LLMs and their tool calls, pushing results to the UI as they stream, and grinding through lengthy background jobs without the whole thing toppling over. Forget CRUD. The real difficulty is making AI systems fast and reliable on confidential data, at production scale. The architecture choices land on you early, and you'll be the one living with them. What you'll do Architect and ship the APIs and services that everything else depends on Own the AI plumbing end to end: retrieval, orchestration, tool-calling, streaming, and the evals that tell you whether the results are worth anything Make async and distributed workloads rock-solid — document ingestion, embeddings, and long jobs running on Redis Wire up integrations with what clients already use (email, document stores) and harden them for real-world traffic Put data security and isolation front and center, because clients are handing over material they can't afford to leak Who you are Seven years or more delivering production backends — though how deep you go matters more to us than the figure itself You think in failure modes, not just the happy path You've shipped genuine LLM systems (RAG, tool-calling, agents), or you can't wait to — and you've got a feel for where they fall apart You lean on AI coding tools (Claude Code, Cursor, Copilot) and get real value from them: more speed, yes, but you grasp and back every line — code you'd reject in someone else's review is code you won't merge in your own A startup that keeps changing course doesn't faze you — plans get set, then torn up and redrawn Tech stack experience Python: 6+ years FastAPI: 3+ years PostgreSQL / SQL Redis: 2+ years Nice to have RAG or vector search experience LangChain or LlamaIndex