Senior Frontend Software Engineer

🏢 Summary: Develop and ship systems that monitor and predict flight trajectories for large-scale air traffic, solving high-impact optimization problems. The role uses a cloud-native stack and offers flexible work arrangements, healthcare, equity, relocation support, and time off. 🗂️ Requirements: Proficiency in a modern programming language, Ability to learn Rust and Python quickly, Familiarity with optimization algorithms, Knowledge of domain modeling and data structures, Familiarity with cloud infrastructure, Ability to write fast, efficient code 📃 Skills: Rust, Python, Kubernetes, GCP, Helm, Terraform, Grafana, Prometheus, PubSub, Dataflow 🏢 Description: About Air Space Intelligence ASI develops mission-critical technology for decision-making across aviation, defense, energy, and other critical-infrastructure domains. Its technology compresses days of analysis into seconds of action. What you will do As part of the core engineering team, you will develop systems that monitor and predict flight trajectories for large-scale air-traffic systems. You will develop and ship new features frequently, translating real-world, high-impact optimization problems into elegant technical solutions. You will work with a cutting-edge technology stack, including Kubernetes, Google Cloud Platform, Helm, Terraform, Grafana, Prometheus, PubSub, and Dataflow. What we value • Proficiency in at least one modern programming language • A foundation to quickly learn Rust and Python • Familiarity with optimization algorithms, domain modeling, data structures, and cloud infrastructure • A bias for action and problem solving • An aptitude for learning quickly • The ability to write fast, efficient code • Intellectual curiosity What we offer • Flexible working hours • Premium medical, dental, and vision coverage for you and your dependents • Competitive salary and equity • Generous relocation package to the Tricity area • High-energy environment • Flexible time off • Office equipment, modern productivity tools, and freshly prepared team breakfast and lunch every day How do we hire The interview process is designed as an opportunity to simulate what it would be like working together and is built around the candidate.

🏢 Summary: Software Engineering Internship focused on building mission-critical solutions in complex domains such as aerospace. The role involves developing and optimizing systems while working with modern cloud and infrastructure technologies under mentorship from experienced engineers. Interns gain hands-on experience with a production-grade tech stack and real-world engineering challenges. 🗂️ Requirements: At least 7th semester student of Computer Science or related field, Availability to work onsite in Gdańsk, Knowledge of at least one of: Python, Rust, React, Ability to build and deliver software projects, Willingness and ability to quickly learn new technologies, Ability to present a technical project with demonstration 📃 Skills: Python, Rust, React, Kubernetes, Helm, Terraform, AWS, GCP, BigQuery, Dataflow 🏢 Description: What you’ll do: As a Software Engineering Intern, you’ll be an integral part of our team, solving some of the most complex challenges across complex operating domains such as aerospace. From optimizing routes to detecting anomalies and driving operational efficiency, you’ll contribute to mission-critical solutions that make a real-world impact, all while gaining valuable technical experience and receiving mentorship from leading software engineers. You’ll also have the opportunity to work with the latest technologies, including Rust, React, Kubernetes, Helm, Terraform, AWS, Google Cloud Platform, Big Query, and Dataflow, gaining hands-on experience in the most sought-after tech skills. What we value: Passionate Builders - We’re looking for talented engineers who love to build. Building isn’t a job, it’s a lifestyle. Our stack includes Python, Rust, and React — whether you already know them or are eager to learn, you’ll thrive if you love solving hard problems and shipping great products. Fast Learners - We don’t expect you to do it all day one, but we do expect that you love to learn and learn quickly. At ASI, speed matters. Critical Thinkers - The world is rapidly changing, and as a result, we must continuously reinvent ourselves to stay ahead and relevant. We love divergent thinkers and people who will come in and challenge the status quo. Force Multipliers - Being excellent in a silo is only part of the equation - to thrive at ASI is to be collaborative and positive-sum oriented. Futurists - You’re energized by the fact that software engineering is being redefined in real time. You seek out new tools and paradigms, including AI, and use them deliberately to compound your impact — without sacrificing technical depth, ownership or taste. Logistics: We are an in-office work environment thus you must be willing to be onsite in our Gdańsk headquarters. At least 7th semester student of Computer Science or related fields. How we hire: To apply, simply send a 3-minute video showcasing your most significant technical achievement and explaining why you want to join ASI. We recommend using a free tool like Loom . The video should include both: Narrative: A brief explanation of your achievement and why you want to join ASI Demonstration: A visual walkthrough of the project We can’t wait to hear from you!

🏢 Summary: QA Engineer role focused on the AirHelp+ product and Mobile App, driving exploratory and automated testing to ensure rapid, stable software delivery. The position emphasizes building and scaling robust test automation across a multi-technology stack while collaborating closely with engineering and product teams. The role also bridges engineering and support by investigating complex issues and improving quality processes. 🗂️ Requirements: Commercial experience in manual and exploratory testing of web and mobile applications, Experience with API testing, Scripting skills in JavaScript or TypeScript or Python or Ruby, Knowledge of at least one UI automation framework (Cypress or Playwright), Experience designing and maintaining automated test suites (API, End-to-End), Ability to work with CI/CD tools and modern development workflows, Strong English proficiency (spoken and written) 📃 Skills: JavaScript, TypeScript, Python, Ruby, Cypress, Playwright, API, CI/CD, Ruby, Rails, Golang, Node.js, React, PostgreSQL, AWS, Docker, Kubernetes, Terraform, ELK, Grafana, Sentry 🏢 Description: At AirHelp, quality and confidence are vital to ensuring a rapid and stable software delivery process. As a team, we are here to help air passengers navigate disruptions, getting them to their destinations safely while prioritizing their comfort and peace of mind. If you share this mission, come join us as a QA Engineer focusing on our flagship AirHelp+ product and our Mobile App. Join our Engineering Team in pushing a modern approach to testing. In the AI era, QA is evolving into a more comprehensive, strategic role. You will collaborate closely with stakeholders and product owners from the earliest stages of project definition, championing the belief that quality is the responsibility of all engineers. While exploratory testing with risk-based prioritization is at the core of this position, robust automation across our multi-tech stack is the key to scaling our impact. AI literacy and a drive to leverage modern testing tools are essential as we continuously elevate our engineering practices. What you’ll be working on: Enhancing the AH+ experience with new features like "fellow traveler" add-ons, value comparisons (Annual vs. Trip), and social proof UI updates. Driving key AirHelp+ upsell initiatives specifically within the Mobile App. Designing, building, and scaling robust test automation suites (API, End-to-End, etc.) to ensure product stability and accelerate delivery. Bridging the gap between Engineering and Customer Support (OPS) by investigating complex escalated issues, helping establish a scalable triage process, and improving high-level product documentation to reduce confusion. What you can expect from us: Opportunity to build high-impact features for the AirHelp+ subscription and our Mobile App that directly improve the travel experience for millions. Culture that promotes good engineering practices, high-quality code, and continuous improvement. Daily deployments to production, ensuring fast impact and iterative development. Access to a modern tech stack and a variety of functional areas, including: Backend: Ruby/Rails, Golang, Python, Node.js Frontend: React, JavaScript, TypeScript Databases: PostgreSQL Infrastructure: AWS, Docker, Kubernetes, Terraform Monitoring & Testing: ELK/Grafana, Sentry, CI/CD tools What will you drive: Be a core part of the development team dedicated to the AirHelp+ product and Mobile App. Advocate for a whole-team approach to quality assurance, bug prevention practices, and learning from incidents. Implement efficient testing approaches in order to quickly find any critical problems with products. Continually improve the team’s quality process by adopting modern, automated workflows. Develop and maintain testing tools and frameworks across a diverse technology stack. What sets you apart: Passion for software testing and quality, with an understanding of QA's expanding role in the AI era. Strong critical thinking, complex problem-solving abilities, and an appetite for continuous learning. Exceptional communication skills and a team-player attitude, enabling you to effectively advocate for quality. Commercial experience with manual and exploratory testing of web and mobile applications. API testing skills. Sense of ownership of delivered solutions. Ability to thrive in a fast-paced and changing environment. Strong command of English (both spoken and written). Scripting ability at a moderate level, either in JavaScript / TypeScript,Python, or Ruby. Knowledge of at least one UI automation framework (Cypress, Playwright). You might be interested in checking our open source contributions https://github.com/AirHelp and our tech blog: https://airhelp.tech/ Why AirHelp: Culture of Autonomy: No micromanagement, no politics. Just builders building. Growth Investment : Dedicated learning days, personal development plans, internal workshops, mentorship, and language classes. Live well: Life/health insurance, private healthcare, wellbeing access (Mindgram), gym card. Flexible Work: Choose contract type (B2B or employment), hybrid setup, 2 weeks work-from-anywhere, plus flexible benefits to choose from (gym card, various subsidies). Stay connected: Annual travel allowance, team days, company events. Tech you need : MacBook and top-tier tools from day one. Extra perk: Unlimited, free access to AirHelp’s services.

🏢 Summary: Full-time Data Platform Engineer role focused on designing and scaling cloud-based data platforms that power AI/ML and analytics solutions for government market intelligence. The position involves building and maintaining data pipelines, enhancing platform architecture, and collaborating cross-functionally to deliver secure, reliable, and high-quality data solutions. Based in Pittsburgh with limited travel, this role requires strong expertise in Python, SQL, big data frameworks, and cloud-native architectures. 🗂️ Requirements: U.S. Citizenship, Bachelor's degree in Computer Science, Mathematics or related technical field, 5+ years experience building and maintaining scalable data platforms or services, Strong proficiency in Python, Strong proficiency in SQL, Experience architecting and implementing data pipeline frameworks including orchestration, Understanding of data security and governance best practices, Hands-on experience with big data frameworks, Knowledge of cloud-native data lake or lakehouse architectures, Ability to support AI, machine learning, data science, and web application data needs 📃 Skills: Python, SQL, Apache, Spark, AWS, AI, MachineLearning, DataScience, DataPipelines, Cloud, DataLake, Lakehouse 🏢 Description: Company Description Air is the leader in Enterprise Readiness. Our mission is to establish readiness as a real-time condition that is continuously achieved. Today, a dangerous Readiness Gap exists between what the front line needs and what is delivered. Our AI-native platform, Air Enterprise Readiness, aligns development, production, delivery, and sustainment into one coordinated execution system for government agencies and industrial suppliers. By revealing true capacity, exposing real constraints, coordinating resources, and executing at the speed of operational demands, the front line gets what it needs to succeed. Job Description We are seeking an exceptional and experienced data platform engineer who shares our passion and obsession with quality. You'll be a core member of our product and engineering team dedicated to helping our clients replace time-consuming, manual processes to reach informed, real-time decisions about government markets, competitors, and agency relationships. We need a skilled and dedicated engineer to join our team to lead us in uncovering truth and meaning in data. You must be hands-on with a strong understanding of both data platforms and cloud infrastructure. You must also have strong interpersonal skills to work cross-functionally across internal teams as well as directly with end users and Air platform SMEs. In order to do this job well, you must be a curious and eager problem solver with a hunger for delivering high-quality data solutions. You have a passion for great work and nothing less than your best will do. You share our intolerance of mediocrity and produce simple solutions to complex problems. Knowing there are always multiple answers to a problem, you know how to engage in a constructive dialogue to find the best path forward. This role is a full-time position located out of our office in Pittsburgh, PA. This role may require up to 10% travel Scope of Responsibilities Design and implement platform architecture enhancements to support scalability and reliability Design, build, maintain, and support data platform solutions to enable efficient data consumption across functional teams, including AI/ML, Data Science, and Software Evaluate and integrate emerging technologies to improve the data platform Collaborate with teams across the organization to understand business needs and translate them into data solutions Mentor junior engineers by providing code reviews, guidance, and technical leadership through promotion of engineering best practices Qualifications U.S. Citizenship is required Bachelor's degree in Computer Science, Mathematics or a related technical field Required Skills: 5+ years of experience in building and maintaining scalable data platforms or services Strong proficiency in Python and SQL Proven experience in architecting and implementing data pipeline frameworks, including orchestration Solid understanding of data security and governance best practices Hands-on with big data frameworks, such as Apache Spark Knowledge of cloud-native data lake/lakehouse architectures Demonstrated ability to collaborate with stakeholders to deliver data platform solutions that support AI, machine learning, data science, and web applications Strong analytical skills and attention to detail Ability to work independently in a fast-paced environment A passion for solving complex problems and building sustainable, scalable systems Desired Skills: Current possession of a U.S. security clearance, or the ability to obtain one with our sponsorship Experience using Amazon Web Services Experience in or exposure to the nuances of a startup or other entrepreneurial environment Working knowledge of large (multiple terabytes) amounts of data We firmly believe that past performance is the best indicator of future performance. If you thrive while building solutions to complex problems, are a self-starter, and are passionate about making an impact in global security, we're eager to hear from you. We firmly believe that past performance is the best indicator of future performance. If you thrive while building solutions to complex problems, are a self-starter, and are passionate about making an impact in global security, we're eager to hear from you. Air is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans status or any other characteristic protected by law.

🏢 Summary: Senior Software Engineer role focused on building and scaling backend-driven features for a global travel tech product used by millions. The position involves end-to-end ownership of services powering the AirHelp+ subscription and mobile app, with daily production deployments. You will design, implement, and scale cloud-based systems that directly impact user experience and operational efficiency. 🗂️ Requirements: 5+ years of experience building production-grade software, Proficiency in backend development with Ruby, Golang, Python or Node.js, Experience designing and maintaining APIs, Experience with background job processing and messaging systems, Experience working with cloud infrastructure, Ability to work with React and TypeScript for end-to-end feature delivery, Experience with relational databases, Knowledge of CI/CD pipelines and automated testing, Strong understanding of software architecture and design patterns, Proficiency in English 📃 Skills: Ruby, Rails, Golang, Python, Node.js, React, JavaScript, TypeScript, PostgreSQL, AWS, Docker, Kubernetes, Terraform, ELK, Grafana, Sentry, CI/CD, APIs 🏢 Description: Build systems at global scale. Ship daily. Own real impact. At AirHelp, we help millions of airline passengers worldwide receive the compensation they deserve. We’re looking for a Senior Software Engineer who thrives on speed, ownership, and building products that matter. This isn’t a “feature factory” role. You’ll take end-to-end responsibility for technical challenges that directly shape both the experience of millions of users and the productivity of our teams. If you’re motivated by shipping fast, solving real problems, and seeing the results of your work immediately, this is the place for you. Join our product engineering team to build impactful features used by travelers worldwide to manage their journeys and navigate disruptions through our mobile app. We are looking for a skilled engineer who thrives in a collaborative environment and is eager to work across a variety of modern backend stacks to power our AirHelp+ product and mobile app experience. What you can expect from us: Opportunity to build high-impact features for the AirHelp+ subscription and our mobile app backend that directly improve the travel experience for millions. Culture that promotes good engineering practices, high-quality code, and continuous improvement. Daily deployments to production, ensuring fast impact and iterative development. Access to a modern tech stack and a variety of functional areas, including: Backend: Ruby/Rails, Golang, Python, Node.js Frontend: React, JavaScript, TypeScript Databases: PostgreSQL Infrastructure: AWS, Docker, Kubernetes, Terraform Monitoring & Testing: ELK/Grafana, Sentry, CI/CD tools What you’ll drive: Build new services and enrich existing ones to enhance our core product offerings. Write clean, scalable, and maintainable code that performs reliably within our cloud infrastructure. Design robust solutions architecture and proactively propose technical improvements. Promote best engineering practices and maintain high coding standards within the team. Actively participate in all stages of the software development lifecycle, from initial ideation to production deployment. Provide constructive feedback through code reviews and support the technical growth of your peers. Directly impact the product direction by contributing technical insights to the roadmap. What you’ll deliver in your first year: Launch the Fast Track voucher system for AirHelp+ members to provide guaranteed, proactive value on every trip regardless of flight disruptions. Implement new add-on features to allow subscribers to purchase per-trip coverage for companions and increase protection density. Scale the flight automation ecosystem by building multi-inbox synchronization for Gmail and Outlook alongside historical delay performance statistics. Overhaul the mobile onboarding and notification systems to drive user activation and deliver personalized journey alerts for travelers and observers. Deploy persistent Live Updates and Live Activity refreshes to ensure travelers have real-time, offline-ready flight status throughout their entire journey. What sets you apart: Software engineer (Full stack or Backend focus) with 5+ years of experience in building production-grade software. Polyglot mindset with proficiency in modern backend stacks; while Ruby on Rails is our core, we welcome experts in Golang, Python or Node.js who are eager to adapt and master new languages. Technical depth in backend infrastructure with strong experience in API contracts, background job processing, and messaging systems. Pragmatic approach to frontend as a backend-leaning expert who is comfortable navigating React/TypeScript environments to deliver end-to-end features. Architectural intuition and the ability to apply modern design patterns to solve real-world travel tech challenges and data pipelines. Startup mindset characterized by a hands-on, iterative approach that focuses on delivering user impact through rapid development. Proficiency in leveraging AI-assisted development tools to increase coding efficiency, debugging speed, and overall productivity. Curiosity for the travel tech domain and the challenge of building automation within complex, real-world environments. Excellent communication skills and a collaborative mindset that thrives in a transparent team environment. High level of ownership and a strong sense of responsibility for the entire lifecycle of the systems you build. Good command of written and spoken English. You might be interested in checking our open source contributions https://github.com/AirHelp and our tech blog: https://airhelp.tech/ Why AirHelp: Fast Impact : We deploy daily - your code reaches millions quickly. Autonomy : High trust, zero politics. We hire builders, not order takers. Growth : Learning days, personal development plans, workshops, mentorship, and language classes. Perks : Private healthcare, non-service days, wellness budget, travel stipend, gym/transport subsidy, free access to AirHelp services, and more. Ready to own something real? Apply now and help us build the systems that make air travel fairer for millions of passengers.

🏢 Summary: Senior Software Engineer role focused on building and scaling high-impact backend and full-stack features for a global travel tech product and mobile app. The position involves end-to-end ownership of services, rapid daily deployments, and designing robust cloud-based architectures. Engineers drive new product capabilities while improving infrastructure, automation, and user experience at scale. 🗂️ Requirements: 5+ years of experience building production-grade software, Proficiency in at least one backend language: Ruby, Golang, Python or Node.js, Experience designing and maintaining APIs, Experience with background job processing and messaging systems, Experience with cloud infrastructure and containerization, Ability to work with React and TypeScript for end-to-end feature delivery, Experience with relational databases, Knowledge of CI/CD pipelines and automated testing, Experience designing scalable system architecture, Proficiency with AI-assisted development tools, Fluent written and spoken English 📃 Skills: Ruby, Rails, Golang, Python, Node.js, React, JavaScript, TypeScript, PostgreSQL, AWS, Docker, Kubernetes, Terraform, ELK, Grafana, Sentry, CI/CD, APIs, Microservices 🏢 Description: Build systems at global scale. Ship daily. Own real impact. At AirHelp, we help millions of airline passengers worldwide receive the compensation they deserve. We’re looking for a Senior Software Engineer who thrives on speed, ownership, and building products that matter. This isn’t a “feature factory” role. You’ll take end-to-end responsibility for technical challenges that directly shape both the experience of millions of users and the productivity of our teams. If you’re motivated by shipping fast, solving real problems, and seeing the results of your work immediately, this is the place for you. Join our product engineering team to build impactful features used by travelers worldwide to manage their journeys and navigate disruptions through our mobile app. We are looking for a skilled engineer who thrives in a collaborative environment and is eager to work across a variety of modern backend stacks to power our AirHelp+ product and mobile app experience. What you can expect from us: Opportunity to build high-impact features for the AirHelp+ subscription and our mobile app backend that directly improve the travel experience for millions. Culture that promotes good engineering practices, high-quality code, and continuous improvement. Daily deployments to production, ensuring fast impact and iterative development. Access to a modern tech stack and a variety of functional areas, including: Backend: Ruby/Rails, Golang, Python, Node.js Frontend: React, JavaScript, TypeScript Databases: PostgreSQL Infrastructure: AWS, Docker, Kubernetes, Terraform Monitoring & Testing: ELK/Grafana, Sentry, CI/CD tools What you’ll drive: Build new services and enrich existing ones to enhance our core product offerings. Write clean, scalable, and maintainable code that performs reliably within our cloud infrastructure. Design robust solutions architecture and proactively propose technical improvements. Promote best engineering practices and maintain high coding standards within the team. Actively participate in all stages of the software development lifecycle, from initial ideation to production deployment. Provide constructive feedback through code reviews and support the technical growth of your peers. Directly impact the product direction by contributing technical insights to the roadmap. What you’ll deliver in your first year: Launch the Fast Track voucher system for AirHelp+ members to provide guaranteed, proactive value on every trip regardless of flight disruptions. Implement new add-on features to allow subscribers to purchase per-trip coverage for companions and increase protection density. Scale the flight automation ecosystem by building multi-inbox synchronization for Gmail and Outlook alongside historical delay performance statistics. Overhaul the mobile onboarding and notification systems to drive user activation and deliver personalized journey alerts for travelers and observers. Deploy persistent Live Updates and Live Activity refreshes to ensure travelers have real-time, offline-ready flight status throughout their entire journey. What sets you apart: Software engineer (Full stack or Backend focus) with 5+ years of experience in building production-grade software. Polyglot mindset with proficiency in modern backend stacks; while Ruby on Rails is our core, we welcome experts in Golang, Python or Node.js who are eager to adapt and master new languages. Technical depth in backend infrastructure with strong experience in API contracts, background job processing, and messaging systems. Pragmatic approach to frontend as a backend-leaning expert who is comfortable navigating React/TypeScript environments to deliver end-to-end features. Architectural intuition and the ability to apply modern design patterns to solve real-world travel tech challenges and data pipelines. Startup mindset characterized by a hands-on, iterative approach that focuses on delivering user impact through rapid development. Proficiency in leveraging AI-assisted development tools to increase coding efficiency, debugging speed, and overall productivity. Curiosity for the travel tech domain and the challenge of building automation within complex, real-world environments. Excellent communication skills and a collaborative mindset that thrives in a transparent team environment. High level of ownership and a strong sense of responsibility for the entire lifecycle of the systems you build. Good command of written and spoken English. You might be interested in checking our open source contributions https://github.com/AirHelp and our tech blog: https://airhelp.tech/ Why AirHelp: Fast Impact : We deploy daily - your code reaches millions quickly. Autonomy : High trust, zero politics. We hire builders, not order takers. Growth : Learning days, personal development plans, workshops, mentorship, and language classes. Perks : Private healthcare, non-service days, wellness budget, travel stipend, gym/transport subsidy, free access to AirHelp services, and more. Ready to own something real? Apply now and help us build the systems that make air travel fairer for millions of passengers.

🏢 Summary: Senior full-stack engineering role focused on building and scaling a real-time, AI-powered system that automates transportation operations. The position involves end-to-end ownership of features, from design to production, across backend and frontend in an event-driven environment. Engineers leverage AI tools to accelerate development and deliver impactful, production-grade solutions. 🗂️ Requirements: Strong experience building production systems, Strong knowledge of at least one programming language, Experience with real-time or event-driven architectures, Experience with streams or pub/sub systems, Proficiency in SQL and data handling, Ability to design and deliver end-to-end solutions, Ability to work across backend and frontend, Experience using AI tools in development workflow 📃 Skills: Python, TypeScript, SQL, React, AWS, XMPP, LLM, PubSub, Streams 🏢 Description: Slickshift is building an AI Agent that runs transportation operations. We help trucking and logistics companies eliminate unnecessary costs — not just by catching execution mistakes in real time, but by automating the decisions and workflows that prevent those mistakes altogether. Our AI Agent monitors transport execution vs. plan, detects issues as they happen, and takes action: alerting, coordinating, and increasingly handling operational decisions that used to require manual work. Instead of juggling tools, calls, and spreadsheets, dispatchers operate through a single system that plans, executes, and monitors transport in real time — with AI actively supporting and automating the workflow. The result: fewer errors, faster reactions, and lower costs — without adding operational overhead. We’re a small, experienced team (ex-Base CRM co-founders, Zendesk alumni) building a product in a massive, underserved industry. Why join us Build fast, see real impact We ship continuously. Our users rely on Slick to run their operations—features you build immediately affect real-world decisions and costs. AI is not a feature. It’s a multiplier. We use AI to rethink how logistics software should work. We’re looking for engineers who treat AI tools as leverage—people who can move faster, explore more, and build smarter systems because of it. Massive opportunity Logistics is huge and still runs on outdated software. There’s real space to build something category-defining. Real ownership You own problems end-to-end. Equity is a meaningful part of your compensation. Remote-first We work remotely, with occasional in-person meetups. What you’ll do Own problems end-to-end: from idea to production to real-world impact Work across the stack — backend, frontend, and everything in between Design and build systems that operate in real time (event-driven, high-signal environments) Use AI tools to accelerate development, decision-making, and product iteration Build AI-powered features that reduce errors and improve operational efficiency Collaborate closely with design and product to ship the right solutions Talk to users and validate whether what you built actually works Continuously improve how we build — tooling, workflows, and engineering practices Who you are Senior engineer who can operate independently and take full ownership Comfortable working across the stack (with a preferred side, but no fear of the other) You treat AI tools (LLMs, copilots, automation) as a core part of your workflow You optimize for outcomes, not just clean code You move fast, but know when to slow down and think deeply You care about solving real customer problems, not just building systems Requirements Strong experience building production systems Strong knowledge of at least one programming language (you pick tools pragmatically, not dogmatically) Experience with real-time or event-driven architectures (streams, pub/sub) Comfortable working with data and SQL Ability to design and deliver end-to-end solutions Nice to have: Experience with Python/TypeScript Experience with XMPP (or similar communication protocols) React AWS infrastructure What matters most We’re not looking for someone who just writes code. We’re looking for someone who can amplify their impact using AI , move across the stack, and take full ownership of what they build. If you want to build fast, think independently, and push how modern software is created — let’s talk.

🏢 Summary: This role offers junior engineers the opportunity to build and deliver real product features in an AI-native engineering environment, using AI agents to accelerate development from idea to production. You will work across backend, frontend, mobile, and infrastructure layers in small autonomous teams, focusing on impactful, user-centered solutions. The position emphasizes hands-on development, technical growth, and collaboration on improving AI-driven workflows. 🗂️ Requirements: Minimum 1 year of software development experience, Experience building a real product, system, tool, or feature, Ability to work across backend, frontend, or mobile layers, Ability to collaborate with product, design, and engineering teams, Ability to learn and apply new technologies quickly, Interest in AI and AI-assisted development tools 📃 Skills: Go, MySQL, Kafka, Docker, Kubernetes, AWS, Redis, Next.js, React, TypeScript, GraphQL, Tailwind, Cloudflare, SwiftUI, Xcode, Combine, SPM, MVVM, Kotlin, Android, Hilt, Coroutines, Jetpack, Linux, GitLab, ArgoCD, Terraform, Helm, OpenSearch, Prometheus, Python, Golang, Claude, OpenAI, Codex, Cursor 🏢 Description: At Saily, we’re removing the hassle of staying connected while traveling — no roaming fees, no plastic SIM cards, just lightning-fast, secure mobile data in 200+ destinations. Saily has millions of paying customers and hundreds of thousands travelers browsing through Saily at any given moment. To build the best product for our customers we foster AI-native Product Engineering culture , where: - The Engineer is the builder, who is responsible for solving customer problems end-to-end (idea to production) - AI Agents are the enablers who write most of the code and solve repeatable  tasks to  help the Engineers  maximize their impact - Everyone contributes to making Saily effective by suggesting new areas for improvement to delegate to agents and then implementing the changes - Curiosity, learning and sharing are everyone's responsibility - Customer, having a comfortable, connected, hassle-free journey is never lost from the focus We value growth over comfort, contribution over hierarchy, and impact over process. At Saily, we believe in giving sharp people context, autonomy, and AI as their multiplier to allow them to just do their best work. We’re opening our doors to talented junior engineers - because impact isn’t measured in years of experience. It comes from your drive to learn, your discipline, and a sharp mind. It’s about building and shaping what’s around you - and Saily will give you the room to do exactly that. What can you expect from us? Hands-on experience with AI-assisted software development, shared openly. Full freedom to use whatever learning resources you need to keep up. A product that’s successful, impactful, and technically challenging - something you’ll actually want to build. Pack your skills, bring your vision, and join Saily ! Main Responsibilities Delivers small tools/features with support from the team. Collaborate with product, design, and other engineers. Operate in small, highly autonomous teams. Learn how to use AI agents for specs, coding, analysis, testing, and iteration. Take part in the improvements of our internal agent network and development workflows. Focus on user and business outcomes, not output. Core requirements 1+ year of software development experience building something real (product, system, tool, startup, side project, meaningful feature, or student project) You value autonomy over stability and process You enjoy working across layers instead of staying in one box You think in problems and outcomes, not tickets You are comfortable with ambiguity You can learn new technologies quickly You are curious about AI and excited to work with agents Tools You Will Use Backend: Go, MySQL, Kafka, Docker, Kubernetes, AWS, Redis Frontend: Next.js, React.js , TypeScript, GraphQL, Tailwind CSS, Cloudflare Workers IOS: SwiftUI, Xcode, Combine, SPM, MVVM Architecture Android: Kotlin, Android Studio, Hilt, Coroutines, Jetpack Compose, MVVM Architecture Infra: Linux, Docker, GitLab, ArgoCD, AWS, Terraform, Helm, OpenSearch, Prometheus, Python / Golang AI tools: Claude Code, OpenAI Codex, OpenCode, Cursor with Composer Salary Range Gross salary:  18,100 — 24,400 PLN / month What We Offer Innovate with industry leaders Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world. Learn & grow Boost your skills via our extensive training programs (online and offline) & other resources. Benefit from mentorship and career-switch opportunities to grow within the company. Hybrid work Enjoy the flexibility with 3 office days and working from home for the remaining 2. Work from anywhere Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive. Physical well-being Fuel your active lifestyle with online workouts led by our Physical Well-Being experts. Unlock a variety of sports and wellness facilities, like gyms, swimming pools, and fitness classes, with the Multisport card. Mental & emotional health Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic. Premium healthcare Receive private health insurance giving you peace of mind for your health needs. Joyful moments – special treats Celebrate life’s big moments with special gifts from us on your birthday, anniversary, and other major events, such as weddings or the arrival of a new family member. Company events & team-building Experience iconic Nord Security celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success. Workation Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together.

🏢 Summary: The offer is for a Senior Frontend Developer responsible for building and maintaining user interfaces using React within AI-powered business platforms. The role focuses on developing high-quality, scalable front-end solutions with strong emphasis on TDD, performance, and cross-team collaboration. Candidates will work in an Agile environment delivering robust, user-friendly products. 🗂️ Requirements: 6+ years of experience with JavaScript and TypeScript, Strong knowledge of React.js and Redux, Understanding of JavaScript design patterns, Knowledge of functional programming, Knowledge of asynchronous programming, Experience with Git and branch management, Ability to debug front-end issues using debugging tools, Experience creating and integrating custom packages, Understanding of object-oriented programming in JavaScript, Hands-on experience with HTML5 and CSS3, Experience with Test-Driven Development (TDD), Experience with Continuous Integration, Familiarity with Agile development practices, Ability to write cross-browser compatible code 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, Agile 🏢 Description: Overview We are a company that leads in AI-powered business operations, providing digital solutions and consulting services that help businesses grow and improve. We focus on using advanced technology to make operations easier, increase efficiency, and create new opportunities, especially in private capital markets. Our services include: PaaS (Platform as a Service): Our main platform uses AI to improve workflows, generate insights, and help businesses grow faster. SaaS (Software as a Service): A cloud platform that offers strong performance, smart tools, and large-scale execution. S&C (Solutions and Consulting Suite): Flexible technology tools to manage, develop, and improve business performance. With over ten years of experience helping fast-growing companies and private equity-backed businesses, we bring deep knowledge and a proven track record of turning technology into a real advantage. Responsibilities Design and develop user interfaces using React. Implement and maintain test-driven development (TDD) and continuous integration. Work with project managers, analysts, and sales teams to deliver high-quality products on time. Follow best practices in testing, accessibility, and performance. Work closely with design, backend, QA, and product teams to build user-friendly solutions. Requirements 6+ years experience with JavaScript and TypeScript. Understand design patterns and how to use them in JavaScript. Experience with modern front-end frameworks like React.js + Redux; Next.js is a bonus. Knowledge of functional and asynchronous programming. Experience with Git and branch management. Ability to debug front-end issues and use debugging tools. Familiar with creating and integrating custom packages. Understand object-oriented programming concepts in JavaScript. Can work under pressure and meet tight deadlines. Hands-on experience with HTML5 and CSS3. Familiar with Agile development practices. Good communication and organizational skills. Able to write code that works across different browsers. Bachelor’s degree in Computer Science or similar is preferred. Why Join Us? We appreciate creative problem-solvers who learn quickly, work well in a diverse environment, and like to raise the standard for success. We work hard but also make sure to enjoy what we do.

🏢 Summary: Fullstack Developer role focused on building advanced planning applications and scalable digital solutions for international markets. The position involves developing backend APIs, creating responsive user interfaces, managing cloud-based environments, and owning the platform lifecycle including CI/CD and automated testing. You will work in an interdisciplinary team using modern technologies and AI-supported tools to deliver secure and high-performance enterprise systems. 🗂️ Requirements: Degree in Computer Science, Software Engineering or related field, Minimum 3 years of fullstack development experience in enterprise environments, Strong expertise in React, Strong expertise in Next.js, Strong expertise in Node.js, Strong expertise in Java, Strong expertise in Spring Boot, Experience with REST APIs, Knowledge of databases, Experience with cloud environments (Microsoft Azure), English proficiency at minimum B2 level 📃 Skills: React, Next.js, Node.js, Java, Spring, SpringBoot, REST, SQL, Azure, Docker, Kubernetes, Terraform, CI/CD, AI, LLM, Scrum, Kanban 🏢 Description: What we achieve together By designing advanced planning applications, you contribute directly to the scalability of our digital solutions across international markets. Your responsibilities will include developing robust backend APIs for scheduling, allocation logic, and core platform modules. Together with an interdisciplinary team, you create responsive user interfaces with strong focus on performance, accessibility, and data visualization You actively shape your own AI-supported development environment using modern tools to increase efficiency and innovation. From architectural strategy to operations, you take ownership of the platform lifecycle, including CI/CD and cloud-based environments. Through designing and implementing automated tests, you ensure a stable, secure, and future-proof product landscape. What makes us successful together Qualification: You hold a degree in Computer Science, Software Engineering, or a comparable field. Experience: You bring at least 5 years of hands-on experience in fullstack development within complex, enterprise environments. Know-how and skills: You have strong expertise in React, Next.js, Node.js, as well as Java and Spring Boot, combined with solid knowledge of REST APIs, databases, and cloud environments such as Microsoft Azure. Nice to have: Experience with Docker, Kubernetes, Terraform, CI/CD pipelines, and the integration of AI or Large Language Models will help you stand out. Personality: You are a collaborative team player who enjoys sharing knowledge and thrives in agile environments such as Scrum or Kanban. Language skills: You communicate confidently in English at a minimum B2 level What you can count on Flexible work model: adjustable starting times (7:30 – 9:00AM), hybrid work 70/30, and up to 30 days of remote work from abroad from selected countries. Health & Wellness support : private medical care (Medicover), sports card subsidy (Multisport), group insurance (Warta), and ergonomic office spaces. Time off & balance: additional paid 2 days off and subsidies for recreation. Financial perks: up to 30% discount on company products, support for commuting and eyewear. Growth & Development: access to internal training, mentoring programs, self-learning platform for languages (eTutor) and international projects. Culture & Community: company events, family friendly activities, and open opportunities within Vaillant Group. What makes us special We take care of a better climate. In every home and our environment. As a successful family business, we have been living up to this claim for over 150 years. We are one of the world's leading providers of heat pumps, digital services and efficient gas heating appliances and offer energy-saving solutions. You will find sustainability everywhere at the Vaillant Group. In the office, at the production sites and on the road. Around 16,000 employees from over 70 countries are committed to this every day. As an international team, we take responsibility - for our future and that of our planet. We promote your personal development so that you can act with passion and together we can ensure a better climate. Become part of the Vaillant Group and help us shape the future of heating! We promote equity and do not tolerate any form of discrimination. We value the uniqueness of each individual and encourage all people to apply.