About you - Tech skills & Experience:

At least 2 years of commercial experience building and maintaining web applications
Strong JavaScript and TypeScript fundamentals, with a practical understanding of HTML, CSS, and browser behavior
Experience delivering application features involving user interactions, forms, and API integration
Experience organising frontend code into maintainable components, managing application state, and investigating accessibility and performance issues
Understanding of client–server communication, authentication, and error handling
Experience with a modern frontend framework and the ability to transfer your knowledge between tools and codebases
Confidence testing and debugging applications, including investigating unfamiliar code and understanding why a solution works
Ability to implement straightforward backend changes within an existing application, such as an API endpoint, input validation, or data access, with review and support for unfamiliar or complex areas
Practical experience using AI coding assistants: breaking work into clear tasks, evaluating their suggestions, and checking correctness through code review and testing
Familiarity with Git, build tooling, and container-based development environments
Experience working with CI/CD workflows: running automated checks, investigating build and test failures, and deploying changes through an established pipeline

About you - Soft skills:

Care about user needs and the business value of what you build
Able to independently deliver well-defined features, clarify ambiguity, and ask for support when needed
Communicate progress, trade-offs, and blockers clearly to teammates and clients
You approach problems proactively, investigate causes, and propose solutions
You welcome constructive feedback and share what you learn
Open to working across frontend and backend and learning technologies beyond your current toolkit
English at B2 or above for collaboration with international clients
Polish at C1 for daily team communication

Nice to have:

Deeper backend experience with API design, database optimisation, or complex third-party integrations
Experience building CI/CD pipelines, automating infrastructure, or working with cloud services beyond routine application deployment
Experience with mobile applications
Interest in improving AI-assisted development workflows, including working with coding agents and coordinating their tasks
Experience working in Agile/Scrum teams or contributing to open-source projects
Understanding of MVP development and how to balance delivery speed, scope, and maintainability

We’re looking for a Frontend Developer to build and improve applications for our US clients - from early-stage MVPs to established products in FinTech, SportsTech, MedTech, and other industries.

TypeScript, React, and https://jobeax.com/link/JSd7UYCSg572jJDY are our bread and butte r. We value strong application development fundamentals, engineering judgment, and the ability to learn the tools a project needs.

We’re building a team of engineers who can contribute across the application while developing deep expertise in frontend or backend engineering. In this role, frontend is your primary discipline, and you’ll broaden your contribution across the stack as your experience grows.

AI-assisted development is part of this role. You’ll use it to explore solutions, implement features, and improve your workflow, while taking responsibility for understanding, testing, and maintaining the code you ship.

Contract summary:

Rate : PLN 9.000 - 15.000 + VAT / month (B2B)
Contract : B2B/UZL, no-service days, 100% remote (or hybrid/onsite-as you prefer), Polish time zone, flexible hours, full-time position, long-term contract
Perks and Benefits : 3,000 PLN annual training budget, Multisport, Luxmed, Cafeteria Platform, Tech-talks, Learning sessions, and more
Tools you’ll use : Apple MacBook Pro, Slack, Google Workspace, GitHub, Jira, Coda, FigJam, AI tools

,[Develop and maintain applications, taking ownership of well-defined features from understanding requirements through implementation, deployment, and verification, Build responsive, accessible interfaces with attention to design details, performance, and user experience, Implement straightforward backend changes within established application patterns, including APIs, business logic, and data handling, with review and support for unfamiliar or complex areas, Understand how the interface, backend, and data fit together, and diagnose issues across those boundaries, Use AI coding assistants in your daily work, providing clear context, critically reviewing generated code, and validating the results, Write clean, maintainable code, Choose and implement appropriate tests for application behaviour, including integration points and important user flows, Follow features through deployment, verify their behaviour, and use logs and error monitoring to investigate issues, Collaborate with designers, developers, QA, and product owners; discuss client needs and propose practical solutions, Participate in code reviews, document important decisions, and share knowledge with the team] Requirements: JavaScript, TypeScript, AI, AWS, Tanstack Start, React, Angular Tools: GitHub, GIT, AWS code build, GitHub actions, Agile, Scrum. Additionally: Small teams, International projects, Flat structure, Training budget, Private healthcare, Sport subscription, Free coffee, Free snacks, Free beverages, Startup atmosphere, No dress code, In-house trainings, Modern office.

Middle Frontend Developer

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