Senior iOS Engineer (Kotlin Multiplatform)

🏢 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: Opportunity to lead the development of a cross-platform mobile app built with Kotlin Multiplatform for Android and iOS, taking full ownership of architecture, shared components, and UI/UX patterns. The role involves close collaboration with backend and design teams to deliver scalable, high-performance mobile experiences. You will shape the technical foundations of the product as part of the founding engineering team. 🗂️ Requirements: 4+ years of Android development experience, Strong proficiency in Kotlin, Production experience with Jetpack Compose, Hands-on experience with Kotlin Multiplatform, Experience with mobile architecture patterns (MVI or MVVM), Experience designing mobile app architecture, Experience integrating mobile apps with backend APIs 📃 Skills: Kotlin, Android, iOS, Jetpack, Compose, KotlinMultiplatform, MVI, MVVM, REST, API 🏢 Description: About the company We are a new AI startup, recently funded, creating the next generation of digital experiences for collectibles and trading cards, like game cards, sports cards, and more. The company was started by two experienced entrepreneurs who have built and grown successful companies before, including a gaming unicorn. We are now forming our founding engineering team. This team will help shape the product, company culture, and engineering standards. We use modern tools, LLM-assisted development, automation, and fast iteration. We are looking for smart and motivated engineers who enjoy working with less guidance, more ownership, and some uncertainty. Most of our work happens on-site. About the role You will take full responsibility for our mobile app, built with Kotlin Multiplatform for both Android and iOS. You will help design the app’s architecture, set UI/UX patterns, and work closely with backend and design teams. What you’ll do Build the main app in Kotlin Multiplatform for Android and iOS Set up clean architecture patterns and shared components across platforms Work with backend to create mobile-friendly APIs and data structures Collaborate with design to make smooth, polished, and fast user experiences Who you are 4+ years of Android development experience, strong in Kotlin Experience with Jetpack Compose in production or serious side projects Experience with Kotlin Multiplatform Comfortable with client architecture patterns (MVI, MVVM, etc.) Take ownership and have a good product sense Enjoy creating UI experiences with care, speed, and quality What it’s like to work here High ownership, low bureaucracy Chance to shape company culture and the codebase from the start Work directly with founders and product team Competitive salary and meaningful equity Fast-paced environment, no silos, no drama

🏢 Summary: Lead iOS Software Engineer role focused on building and scaling a high-quality fintech mobile app, driving architecture, code excellence, and delivering secure, performant user experiences. The position involves hands-on development, technical leadership, and ownership of features across multiple financial products. 🗂️ Requirements: 6+ years of professional iOS development experience, Strong proficiency in Swift, Experience with UIKit, SwiftUI, and Combine, Knowledge of MVVM and Clean Architecture, Experience with testing practices in iOS, Experience building complex, high-scale consumer applications, Ability to design scalable and secure mobile architectures, Experience with full feature lifecycle from design to deployment 📃 Skills: Swift, iOS, UIKit, SwiftUI, Combine, MVVM, CleanArchitecture, Xcode, Git, Testing, CI/CD 🏢 Description: Our Mission We are building the financial system for the next century. One where control sits in the hands of customers — not banks. Where money moves on rails that are faster, smarter, and radically more efficient. Where wealth management tools help you grow your savings for decades — and build generational wealth. Where fewer intermediaries mean more value stays where it belongs: in our customers’ pockets. We operate with long-term ambition and absolute conviction. We are not here to iterate on the past — we are here to redesign it. This is a defining moment to join us. We are building what we believe will become one of the most important financial institutions in the world. That requires exceptional talent, relentless standards, and people who care deeply about the work. At ARQ, we are turning the financial system upside down — starting in the Americas. We are nimble, but ambitious. We move fast, learn fast, and innovate relentlessly. Technology is our greatest ally, and execution is our edge. We build as a team. We think long term. We aim for world-class in everything we do. If you are exceptional at what you do — and ready to help redefine finance — we’d love to meet you. Are you ready to build what comes next? About the team We believe that small teams with the best talent outcompete massive companies with mediocre capabilities. That's why we have gathered a set of people who have done it before at iconic companies like Revolut, Uber, Amazon, Block and UBS: we owned some of the most loved and profitable products, delivered top-notch transaction processing platforms, created beautiful mobile applications - and helped them become profitable companies that changed the lives of millions of people. In our quest to reshape the global financial system we have raised tens of millions of dollars from leading investors like Sequoia Capital, Founders Fund, Brevan Howard Digital, Y Combinator and Kaszek Ventures. What We’re Looking For We’re looking for a Lead iOS Software Engineer who is a world-class hands-on builder. You’ll set the bar for engineering excellence, lead by example through code reviews and architecture design, and inspire a growing mobile team to deliver elegant, reliable, and beautiful experiences that define what financial products should feel like. This is a high-impact role on our Core Product Team , where you’ll help build and scale the ARQ experience - from our flagship app to new initiatives such as Premium , Credit , and other innovative financial products in the pipeline. What You’ll Be Doing Be the hands-on technical expert for all things iOS - writing world-class code, performing code reviews, and ensuring technical excellence across the app. Collaborate with Product and Design to craft pixel-perfect user experiences with exceptional attention to detail, performance, and reliability. Architect, build, and maintain scalable mobile features that are secure, fast, and delightful to use. Review code, share insights, and elevate the quality of engineering across the app. Drive the evolution of our mobile architecture to support a multi-product environment (Premium, Credit, and more). Collaborate closely with cross-functional teams to ship quickly while maintaining uncompromising quality. Own the full lifecycle of your features - from design and implementation to testing and deployment. What You’ll Need 6+ years of professional experience in iOS development, ideally building complex, high-scale consumer products. Proven expertise in Swift and Apple’s iOS ecosystem (UIKit, SwiftUI, Combine, etc.). Strong understanding of design patterns, architecture (MVVM, Clean Architecture), and testing practices. Deep passion for UI/UX craftsmanship - you care deeply about the small details that make products amazing. Proven ability to deliver outstanding products end-to-end in fast-moving, high-growth environments. Bonus: Experience in fintech , payments , or digital banking .

🏢 Summary: Lead iOS Software Engineer role focused on building and scaling a high-quality fintech mobile application. The position involves hands-on iOS development, architectural leadership, and delivering secure, performant, and pixel-perfect user experiences across multiple financial products. You will own features end-to-end and drive engineering excellence within the mobile team. 🗂️ Requirements: 6+ years of professional iOS development experience, Proven expertise in Swift, Strong knowledge of UIKit, SwiftUI, Combine, Experience with MVVM and Clean Architecture, Experience with testing practices in iOS, Ability to design scalable mobile architectures, Experience building complex, high-scale consumer applications 📃 Skills: Swift, iOS, UIKit, SwiftUI, Combine, MVVM, CleanArchitecture, Xcode, CI/CD, Git, Testing, REST 🏢 Description: Our Mission We are building the financial system for the next century. One where control sits in the hands of customers — not banks. Where money moves on rails that are faster, smarter, and radically more efficient. Where wealth management tools help you grow your savings for decades — and build generational wealth. Where fewer intermediaries mean more value stays where it belongs: in our customers’ pockets. We operate with long-term ambition and absolute conviction. We are not here to iterate on the past — we are here to redesign it. This is a defining moment to join us. We are building what we believe will become one of the most important financial institutions in the world. That requires exceptional talent, relentless standards, and people who care deeply about the work. At ARQ, we are turning the financial system upside down — starting in the Americas. We are nimble, but ambitious. We move fast, learn fast, and innovate relentlessly. Technology is our greatest ally, and execution is our edge. We build as a team. We think long term. We aim for world-class in everything we do. If you are exceptional at what you do — and ready to help redefine finance — we’d love to meet you. Are you ready to build what comes next? About the team We believe that small teams with the best talent outcompete massive companies with mediocre capabilities. That's why we have gathered a set of people who have done it before at iconic companies like Revolut, Uber, Amazon, Block and UBS: we owned some of the most loved and profitable products, delivered top-notch transaction processing platforms, created beautiful mobile applications - and helped them become profitable companies that changed the lives of millions of people. In our quest to reshape the global financial system we have raised tens of millions of dollars from leading investors like Sequoia Capital, Founders Fund, Brevan Howard Digital, Y Combinator and Kaszek Ventures. What We’re Looking For We’re looking for a Lead iOS Software Engineer who is a world-class hands-on builder. You’ll set the bar for engineering excellence, lead by example through code reviews and architecture design, and inspire a growing mobile team to deliver elegant, reliable, and beautiful experiences that define what financial products should feel like. This is a high-impact role on our Core Product Team , where you’ll help build and scale the ARQ experience - from our flagship app to new initiatives such as Premium , Credit , and other innovative financial products in the pipeline. What You’ll Be Doing Be the hands-on technical expert for all things iOS - writing world-class code, performing code reviews, and ensuring technical excellence across the app. Collaborate with Product and Design to craft pixel-perfect user experiences with exceptional attention to detail, performance, and reliability. Architect, build, and maintain scalable mobile features that are secure, fast, and delightful to use. Review code, share insights, and elevate the quality of engineering across the app. Drive the evolution of our mobile architecture to support a multi-product environment (Premium, Credit, and more). Collaborate closely with cross-functional teams to ship quickly while maintaining uncompromising quality. Own the full lifecycle of your features - from design and implementation to testing and deployment. What You’ll Need 6+ years of professional experience in iOS development, ideally building complex, high-scale consumer products. Proven expertise in Swift and Apple’s iOS ecosystem (UIKit, SwiftUI, Combine, etc.). Strong understanding of design patterns, architecture (MVVM, Clean Architecture), and testing practices. Deep passion for UI/UX craftsmanship - you care deeply about the small details that make products amazing. Proven ability to deliver outstanding products end-to-end in fast-moving, high-growth environments. Bonus: Experience in fintech , payments , or digital banking .

🏢 Summary: Senior Mobile Architect role focused on defining and modernizing cross platform mobile SDKs for digital fraud prevention and customer authentication in financial services. The position involves driving architecture strategy, designing public APIs, ensuring security and performance, and leading SDK migration across iOS and Android. You will collaborate with cross functional teams to deliver scalable, secure, and high quality SDK solutions. 🗂️ Requirements: 10+ years experience in software engineering including mobile architecture, Experience designing and delivering mobile SDKs for external applications, Experience leading SDK modernization and migration without breaking integrations, Strong knowledge of API design, versioning, and backward compatibility, Experience with cross platform SDK packaging and distribution for Android and iOS, Knowledge of modular architecture and dependency management, Experience optimizing SDK performance and binary size, Understanding of mobile security practices and secure storage, Experience with observability tools and release engineering practices, Experience supporting CI CD and release processes 📃 Skills: Kotlin, Java, Swift, ObjectiveC, Gradle, Maven, AAR, XCFramework, SPM, CocoaPods, ProGuard, R8, CI/CD, Keychain, AndroidKeystore, SecureEnclave, Telemetry 🏢 Description: Project overview The project focuses on modernizing a cross platform mobile SDK used for digital fraud prevention and customer authentication in financial services. The goal is to design a scalable and secure architecture that simplifies partner integration, improves performance, and supports long term product growth. Team You will work in a cross functional distributed team that includes mobile engineers, architects, product owners, and security specialists. The team collaborates closely across platforms and regions, contributing to architecture decisions, roadmap planning, and design validation activities. Position overview We are looking for a Senior Mobile Architect who will define and drive the target architecture and modernization strategy for mobile SDKs across iOS and Android platforms. You will establish engineering standards, design public APIs, guide migration strategy, and collaborate with product and engineering teams to ensure consistent and high quality delivery. Technology stack Kotlin, Java, Swift, Objective C, Gradle, Maven, AAR, XCFramework, Swift Package Manager, CocoaPods, ProGuard, R8, CI CD pipelines, telemetry tools, Keychain, Android Keystore, Secure Enclave Responsibilities Define and evolve the target architecture for mobile SDKs across iOS and Android Design and maintain clear and stable public API contracts with versioning strategy Develop modernization roadmap and support incremental migration of existing SDKs Collaborate with engineering and product teams to align architecture with business goals Establish standards for SDK distribution, integration, and lifecycle management Ensure compatibility across platforms, OS versions, and partner environments Drive improvements in SDK stability, performance, and developer experience Optimize SDK footprint including binary size, startup impact, and resource usage Define and enforce security and data protection practices within the SDK Contribute to proof of concept implementations to validate architectural decisions Guide observability practices including logging, telemetry, and error tracking Support CI CD and release processes for consistent and reliable SDK delivery Requirements 10+ years of experience in software engineering including mobile architecture Hands on experience designing and delivering mobile SDKs used by external applications Experience leading modernization initiatives and migrating live SDKs without breaking integrations Strong understanding of API design including versioning and backward compatibility Experience with cross platform SDK packaging and distribution for Android and iOS Knowledge of modular architecture and dependency management strategies Experience optimizing SDK performance including binary size, startup time, and resource usage Understanding of mobile security practices including secure storage and certificate pinning Familiarity with privacy and compliance requirements in mobile applications Experience with observability tools and release engineering practices Strong communication skills and experience collaborating with multiple stakeholders Nice to have Experience in financial services, fraud prevention, or enterprise security solutions Familiarity with anti tampering techniques and runtime protection approaches Experience with remote configuration and feature flag systems Knowledge of platform specific background execution and system constraints Exposure to sensor based or behavioral data processing in mobile applications What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Lead iOS Engineer role focused on building and maintaining scalable iOS platform capabilities for consumer-facing applications. The position involves hands-on Swift development, MVVM architecture, SDK integrations, cloud-connected mobile features, testing strategy implementation, and AI-assisted engineering practices in a high-ambiguity environment. The offer includes flexible work arrangements, professional growth opportunities, and work on modern large-scale projects. 🗂️ Requirements: 5+ years of iOS engineering experience, Strong Swift and iOS development experience, Experience building and shipping production iOS applications at scale, Experience with MVVM architecture, Experience integrating third-party SDKs, Knowledge of networking and API integration, Experience with cloud-connected mobile functionality, Ability to implement testing and quality strategies, Experience with AI-assisted engineering tools, Strong communication and collaboration skills, Upper-intermediate English level 📃 Skills: Swift, iOS, MVVM, APIs, SDKs, CloudCode, Codility 🏢 Description: ID71270 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. Why join us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :) About the role We are looking for a Lead iOS Engineer to support a platform-focused team at Bumble, contributing hands-on to iOS implementation while raising the technical bar across architecture, quality practices, and AI-assisted delivery. You will design and maintain MVVM-based iOS architecture, integrate third-party SDKs and cloud-connected platform functionality, and select and implement appropriate testing strategies for the team. The role requires strong ownership in a high-ambiguity environment, turning unclear requirements into clear technical plans with minimal supervision. What you will do Design, build, and maintain high-quality iOS platform capabilities that support consumer-facing experiences; Design and evolve the iOS architecture using MVVM, modular architecture, and modern engineering best practices; Integrate third-party SDKs and platform services into the iOS application; Work across networking layers, API integrations, and backend-connected mobile features; Support Cloud Code-related implementation and integration needs where applicable; Own iOS work end-to-end while providing technical guidance through code reviews, pairing, and architecture discussions; Define and implement testing strategies and quality practices that improve release confidence while balancing maintainability and delivery speed; Apply AI-assisted engineering practices to improve delivery, code quality, debugging, refactoring, documentation, and tooling while maintaining engineering standards; Communicate clearly with stakeholders, surface risks early, and keep progress visible across time zones. Must haves 5+ years of experience as an iOS engineer with strong hands-on Swift/iOS implementation experience; Strong hands-on experience with modern Swift Concurrency (async/await, Actors, structured concurrency) in production applications; Strong experience building and shipping production iOS applications at scale; Strong knowledge of MVVM and modern architectures such as TCA , Clean Architecture , or similar; Proven experience leading technical discussions, driving architecture decisions, and influencing engineering best practices across a team; Experience integrating third-party SDKs in production mobile applications; Strong understanding of networking, API integration, error handling, and mobile-backend interaction patterns; Experience with Cloud Code or comparable cloud-connected mobile/platform functionality; Strong experience defining testing strategy, selecting testing frameworks and quality practices, and determining appropriate unit, integration, UI, snapshot, contract, or other test coverage; Experience using AI-assisted engineering tools to improve implementation, debugging, refactoring, testing, documentation, and development workflows; Strong ownership mindset with the ability to operate independently, communicate progress clearly, and proactively surface risks and blockers across time zones; Upper-intermediate English level. Nice to haves Experience with modular iOS architecture in large-scale consumer applications; Experience defining or improving team-level testing strategy, not just contributing individual tests; Experience working on platform teams or shared mobile foundations used by multiple product teams; Experience with cloud-connected mobile features, backend-for-frontend patterns, or services that require close mobile/backend coordination; Prior experience in high-ambiguity environments where requirements need discovery, validation, and technical shaping before implementation; Practical experience using AI tools to improve engineering workflows while preserving code quality, security, and authenticity. The benefits of joining us Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive. Meet Our Recruitment Process Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback: Short online form to confirm basic requirements 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process. 5-minute introduction video Synchronous stage – Live interviews Technical interview with our engineering team (scheduled at your convenience) Final interview with your future teammates If it’s a match — you’ll get an offer!

🏢 Summary: Senior iOS Engineer role focused on building, optimizing, and modernizing high-performing iOS applications in a mature Agile product environment. The position involves end-to-end ownership of mobile features, collaboration across teams, and driving scalable, maintainable solutions using modern iOS technologies. Candidates should have strong expertise in Swift, UIKit, architecture patterns, and mobile engineering best practices. 🗂️ Requirements: 5+ years of iOS development experience, Strong expertise in Swift, Experience with MVVM, Experience with Clean Architecture, Experience with modular app architecture, Experience with Combine, Experience with UIKit, Experience with SwiftUI, Experience with Cocoapods, Experience with SPM, Experience with dependency injection, Experience integrating RESTful APIs, Ability to analyze and improve app performance and memory usage, Experience with Git workflows and CI/CD, Experience working in Agile teams, English communication skills 📃 Skills: Swift, MVVM, UIKit, SwiftUI, Combine, Cocoapods, SPM, Git, CI/CD, REST, iOS 🏢 Description: We’re seeking an experienced Senior iOS Engineer to develop and optimize our iOS applications, using strong expertise in modern mobile technologies. You’ll be involved throughout the entire mobile app lifecycle, shaping features, designing software, and refining the user experience. We’re looking for someone who can contribute independently in a mature Agile product environment, taking ownership from refinement through delivery with minimal hand-holding. Your responsibilities: Build and maintain reliable, high-performing iOS apps. Write clean, efficient and testable Swift code. Work closely with engineering, product, design, and QA teams. Translate product requirements into solid technical solutions. Drive features independently from requirements clarification through implementation, QA collaboration, release readiness, and production support. Proactively identify risks, blockers, and ambiguities, and communicate them early with Product, QA, and Engineering. Contribute to high-quality engineering practices through thoughtful technical decisions, clear pull requests, and constructive code reviews. Refactor and modernize legacy code and support the transition toward a modular application architecture. We are looking for you, if you have: 5+ years of iOS development experience, ideally in product-driven or high-scale environments. Strong problem-solving skills and the ability to turn complex challenges into actionable steps. Focus on scalability, maintainability, and long-term platform health. Experience working in Agile teams with planning, estimation, and iterative delivery. Highly self-managed, dependable, and able to operate effectively with minimal supervision. Clear communicator who asks clarifying questions, keeps stakeholders informed, and follows through on commitments. Comfortable navigating ambiguity, prioritizing effectively, and proposing practical solutions in a fast-moving environment. Strong expertise in Swift, MVVM, Clean Architecture, and modular app architecture. Experienced with Combine, UIKit (mandatory), SwiftUI, Cocoapods, SPM, and dependency injection. Solid experience integrating RESTful APIs, data processing, and error management. Able to analyze and improve app performance, memory usage, stability, and responsiveness. Proven ability to deliver polished, intuitive, user-focused mobile interfaces. Confident with standard engineering workflows including Git, branching strategies, pull requests, code reviews, CI/CD, and release processes. Experience working in mature Agile product teams, including backlog refinement, sprint planning, QA collaboration, and iterative delivery. Excellent communication skills in English. We offer: Participation in interesting and demanding projects. Flexible working hours. A great, non-corporate atmosphere. Possibility to work remote or hybrid (2 days per week from the office). Opportunities for development and promotion. Attractive package of benefits. We reserve the right to contact the selected candidates.

🏢 Summary: Senior iOS Engineer role focused on designing, developing, and maintaining scalable, high-performance iOS applications using modern architectures and best practices. The position involves leading technical decisions, integrating backend services, and ensuring mobile app quality, security, and performance. Hybrid work model with one day per week in the Kraków office. 🗂️ Requirements: Extensive experience developing production-grade iOS applications, Expert knowledge of Swift, SwiftUI, UIKit, Xcode, Experience with scalable mobile architectures (TCA, Redux, MVI), Experience integrating RESTful APIs and GraphQL services, Knowledge of mobile security best practices, Knowledge of performance optimisation techniques, Experience with unit and UI testing, Experience with CI/CD pipelines and release management, Ability to lead code reviews and mentor developers, Fluent English (written and spoken) 📃 Skills: Swift, SwiftUI, UIKit, Xcode, TCA, Redux, MVI, REST, GraphQL, Kotlin, CI/CD, UnitTesting, UITesting, Security, Accessibility, PerformanceOptimisation 🏢 Description: Senior Software Engineer (iOS) (Hybrid/Kraków – 1 day per week in the office) We’re Kingfisher, a team made up of over 74,000 passionate people who bring Kingfisher - and all our other brands: Castorama, B&Q, Screwfix, Brico Dépôt and Koçtaş - to life. That’s right, we’re big, but we have ambitions to become even bigger and even better. We want to become the leading home improvement company and grow the largest community of home improvers in the world. And that’s where you come in. At Kingfisher, our customers come from all walks of life, and so do we. We want to ensure that all colleagues, future colleagues, and applicants to Kingfisher are treated equally regardless of age, gender, marital or civil partnership status, colour, ethnic or national origin, culture, religious belief, philosophical belief, political opinion, disability, gender identity, gender expression or sexual orientation. We are open to flexible and agile working. Therefore, we offer colleagues a blend of working from home and our office, located in Kraków. Talk to us about how we can best support you! At Kingfisher, we value the perspectives that any new team members bring, and we want to hear from you. We encourage you to apply for one of our roles, even if you do not feel you meet 100% of the requirements. In return, we offer an inclusive environment, where what you can achieve is limited only by your imagination! We encourage new ideas, actively support experimentation, and strive to build an environment where everyone can be their best self. We offer a competitive benefit package and plenty of opportunities to stretch and grow your career: 20,000 - 28,000 PLN gross per month on an employment contract Private medical healthcare at LUXMED (including dentalcare) for you and your family Medicover sports card (Fit&More package) Life insurance financed by the employer 30-minute lunch break included in the 8-hour working day Work in a highly professional and stimulating atmosphere Training & Buddy programme that will allow you to quickly adapt to your new role Wellbeing programme for employees Co-financing of monthly tickets for the public transport in Krakow Comfortable working environment in the office and the possibility of home office Language courses, accounting courses, access to LinkedIn Learning and the possibility of co-financing studies and certification Employee referral programme What's the job? About the role We are going through an exciting period of change and are looking for a motivated Senior iOS Engineer to join our Engineering team. In this role, you will be responsible for designing, developing, and maintaining high-quality iOS applications, working closely with other engineers, product managers, and designers to deliver exceptional user experiences. You will work with modern technologies, while following best practices in mobile architecture, performance, and security. If you're looking for an exciting opportunity to step out of your comfort zone and make a real impact building better software, this is the job for you! Responsibilities Lead the design, development, and delivery of scalable, high-performance iOS applications using Swift, SwiftUI, and Xcode. Drive engineering best practices by promoting clean architecture, maintainable code, and robust testing strategies (e.g. TCA, modularisation, unit/UI testing). Collaborate cross-functionally with backend engineers, product managers, designers, and stakeholders to shape technical solutions and influence product direction. Architect and oversee integrations with shared Kotlin Multiplatform business logic, RESTful APIs, GraphQL services, SDKs, and third-party platforms, ensuring reliability and scalability. Champion mobile application security, accessibility compliance, performance optimisation, and overall app quality across the development lifecycle. Lead code reviews, mentoring, refactoring initiatives, and complex troubleshooting efforts to maintain a high-quality and sustainable codebase. Support and improve CI/CD pipelines, release management, and engineering workflows to increase delivery efficiency and product stability. Stay current with emerging iOS technologies, frameworks, and industry trends, proactively introducing improvements and sharing knowledge within the team. Mentor junior and mid-level developers, providing technical guidance, feedback, and support in their professional growth. Contribute to technical decision-making, architectural planning, and long-term mobile strategy within the engineering organisation. What you'll bring Extensive professional experience developing and delivering production-grade iOS applications. Expert knowledge of Swift, SwiftUI, UIKit, and Xcode ecosystem. Strong understanding of scalable mobile architectures such as The Composable Architecture (TCA), Redux-style patterns, or MVI. Proven experience integrating RESTful APIs, GraphQL services, SDKs, and third-party platforms. Strong knowledge of mobile security, performance optimisation, and accessibility best practices. Ability to lead technical discussions, mentor developers, and drive engineering best practices. Excellent problem-solving skills, attention to detail, and strong collaboration in cross-functional teams. Excellent command of English (written and spoken). Nice to have Experience with Kotlin Multiplatform or similar approaches to sharing business logic across mobile platforms.

🏢 Summary: Role for a Kotlin Multiplatform Developer in a banking project focused on building and maintaining shared business logic for Android and iOS mobile applications used by hundreds of thousands of users. The position emphasizes high code quality, robust architecture, and automation within an agile environment. The developer will contribute to a secure, large-scale mobile solution with strong quality standards. 🗂️ Requirements: Minimum 3 years experience as Mobile Developer (Android/iOS), Very good knowledge of Kotlin, Practical experience with Kotlin Multiplatform (KMP), Experience in application architecture design (Clean Architecture, SOLID, MVVM/MVI), Knowledge of asynchronous programming (Coroutines, RxJava), Experience with dependency injection (Koin or Dagger), Experience with networking (Ktor or OkHttp), Experience in unit and integration testing (JUnit, Mockk), Knowledge of Git, Experience working with CI/CD, Communicative English 📃 Skills: Kotlin, KMP, Android, iOS, CleanArchitecture, SOLID, MVVM, MVI, Coroutines, RxJava, Koin, Dagger, Ktor, OkHttp, JUnit, Mockk, Git, CICD 🏢 Description: BlueSoft to innowacyjny Software House należący do Grupy Orange. Mamy wewnętrzną filozofię - tworzenie prostych i skutecznych rozwiązań dla skomplikowanych problemów. Powstaliśmy w 2002 roku i dziś współpracuje z nami ponad 1000 inżynierów i inżynierek znających przeszło 200 technologii! O projekcie: Dla naszego klienta z sektora bankowego poszukujemy osoby na stanowisko Kotlin Multiplatform Developer , która dołączy do zespołu rozwijającego nowoczesną aplikację mobilną wykorzystywaną przez setki tysięcy użytkowników. Celem zespołu jest budowa i rozwój wspólnej logiki biznesowej dla aplikacji Android i iOS z wykorzystaniem Kotlin Multiplatform (KMP) . Pracujemy w dojrzałym, zwinnym środowisku, z dużym naciskiem na jakość kodu, architekturę i automatyzację . Kogo szukamy? Szukamy osoby z doświadczeniem w tworzeniu aplikacji mobilnych , która pracowała z Kotlin Multiplatform i chce rozwijać się w projektach o wysokich wymaganiach jakościowych i bezpieczeństwa. Wymagania: min. 3 lata doświadczenia jako Mobile (Android/iOS) Developer , bardzo dobra znajomość Kotlina oraz praktyczne doświadczenie z Kotlin Multiplatform (KMP) , doświadczenie w projektowaniu architektury aplikacji ( Clean Architecture, SOLID, MVVM/MVI ), dobra znajomość asynchroniczności ( Coroutines, RxJava ), doświadczenie z dependency injection ( Koin/Dagger ), praca z komunikacją sieciową ( Ktor/OkHttp ), doświadczenie w testowaniu (unit, integration, BDD – JUnit, Mockk), znajomość Git oraz pracy w środowisku CI/CD , komunikatywna znajomość języka angielskiego. Mile widziane: znajomość Jetpack Compose/Compose Multiplatform , doświadczenie z SQLDelight , podstawowa znajomość iOS/Xcode/Swift (integracja, współpraca cross-platform), doświadczenie w projektach bankowych/fintechowych , znajomość zagadnień bezpieczeństwa (szyfrowanie, kryptografia), doświadczenie w pracy w dużych, rozproszonych zespołach i code review. Co zyskujesz dołączając do Bluesoft: 👨‍💻 współpracę w zespole interdyscyplinarnych ekspertów i ekspertek, zainspirowanych pracą w płaskiej hierarchii; 📈 stałą współpraca w pełnym wymiarze godzin w niezwykłej firmie, która rozwija się dynamicznie od 20 lat; 🚀 szansę na rozwój w różnorodnych projektach IT, realizowanych dla bardzo znanych i rozpoznawalnych klientów - liderów w swoich branżach; 🥇 możliwość pracy z najnowszymi technologiami w oparciu o najwyższe standardy developmentu; ⌚️ elastyczny czas i hybrydowy lub w pełni zdalny model pracy (w różnych zespołach funkcjonują różne ustalenia, nie narzucamy żadnych opcji); ☁ szereg inicjatyw wspierających dzielenie się wiedzą i rozwój, takich jak: szkolenia wewnętrzne, gildie tematyczne, możliwość szkolenia i certyfikacji w zakresie Cloud (partnerstwa technologiczne w czterech chmurach); 📣 możliwość nauki języka angielskiego lub niemieckiego online oraz zespołowe lekcje języka angielskiego; 🏋️‍♂️ możliwość dołączenia do Multisport i ubezpieczenia medycznego; ⛵️ morskie przygody – z nami popływasz po Morzu Karaibskim, Śródziemnym lub Północnym (udział w rejsach firmowych jest dofinansowany przez firmę).

🏢 Summary: Backend engineering role focused on building scalable Python services and APIs for an AI platform used by enterprise customers. The position involves developing production backend systems, integrating AI components, and improving reliability in a collaborative engineering environment. Offers modern AI tooling, cloud-native development exposure, and growth opportunities within an AI-focused product team. 🗂️ Requirements: 2–5 years of backend application development experience, Python, REST APIs, Backend services, SQL, PostgreSQL, Asynchronous programming, Background job processing, AWS, Azure, GCP, Testing, Version control, AI development tools, English B2 📃 Skills: Python, FastAPI, Django, PostgreSQL, SQL, AWS, Azure, GCP, Docker, Redis, RabbitMQ, Kafka, TypeScript, REST, Git, CI/CD, ChatGPT, Copilot, Codex, Claude 🏢 Description: About Us Many companies want to use AI agents, but these agents often struggle with real business tasks. We solve this problem by building a platform that helps AI understand business rules, workflows, and processes. This enables AI to make better decisions and provide accurate, reliable, and trustworthy results. Our technology is used by leading companies across multiple industries to automate up to 85% of customer cases, reduce handling time by 20–25%, and complete tasks that previously took hours in just seconds. We work with leading technology partners and have been recognized for our innovative approach. Our mission is to help people everywhere get better answers through AI. About the Role We are looking for a Mid Backend Engineer to help build scalable backend services that power our AI platform. You'll work closely with experienced backend engineers, frontend developers, product managers, and platform engineers to develop new features, improve existing systems, and deliver reliable production software. This is a great opportunity to work on modern AI infrastructure while growing your technical skills in a collaborative engineering environment. Responsibilities - Build and maintain backend services, APIs, and background processing systems. - Develop scalable application logic using Python. - Collaborate with product managers and engineers to deliver new product features. - Integrate backend services with databases, external APIs, and AI components. - Monitor, troubleshoot, and improve production services. - Write clean, maintainable, and well-tested code. - Participate in code reviews and engineering discussions. - Improve development workflows using AI tools and automation. - Continuously learn from production feedback and contribute to improving system reliability and performance. Requirements - 2–5 years of experience building production backend applications. - Good knowledge of Python. - Experience building REST APIs and backend services. - Understanding of relational databases (PostgreSQL or similar) and SQL. - Familiarity with asynchronous programming and background job processing. - Basic understanding of cloud platforms such as AWS, Azure, or GCP. - Understanding of software engineering best practices, testing, and version control. - Good communication skills and willingness to collaborate across engineering and product teams. - Experience using AI development tools such as GitHub Copilot, Claude Code, ChatGPT, or similar. - English at B2 level or higher. Nice to Have - Experience with FastAPI, Django, or similar Python frameworks. - Experience working with Docker and CI/CD pipelines. - Familiarity with Redis, RabbitMQ, Kafka, or similar messaging technologies. - Experience building AI-powered applications or integrating LLM APIs. - Basic knowledge of TypeScript or frontend development. - Interest in distributed systems and cloud-native architectures. What We Offer - 20,000–24,000 PLN B2B (depending on experience). - Company stock options. - MacBook Pro. - Modern technology stack with opportunities to contribute to open-source projects. - Access to advanced AI development tools, including GitHub Copilot, Claude Code, OpenAI Codex, TypingMind, and MCP Servers. - The opportunity to work on production AI systems used by enterprise customers. - A collaborative engineering culture focused on learning, ownership, and continuous improvement. - Career growth alongside experienced engineers in a fast-growing AI company. Our Culture and Values - Quality - We build reliable software with attention to detail and long-term maintainability. - Momentum - We move quickly, learn continuously, and improve through iteration. - Accountability - We take responsibility for our work and communicate openly. - Hard Work - We solve ambitious problems together and support each other along the way. - Learning Agility - We stay curious, embrace feedback, and continuously develop our skills. - Adapt and Thrive - We welcome change and see challenges as opportunities to improve. - Win Together - We collaborate, share knowledge, and succeed as one team.