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Frontend Engineer
About On The Spot
About the team
You’ll be joining the engineering team of a stealth-mode cybersecurity startup. Due to NDA restrictions, more details will be shared during the interview process.
About the role
As a Frontend Engineer, you will craft high-quality user interfaces with React and TypeScript, turning complex AI capabilities into seamless, intuitive experiences.
You’ll collaborate closely with product, UX, and ML teams to deliver polished, high-impact features from concept to launch.
You’ll take ownership of frontend architecture, ensure code quality, and play a key role in shaping both the product and engineering culture.
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Responsibilities
- Lead the development of scalable, performant frontend features using React (TypeScript)
- Collaborate with cross-functional teams to build AI-powered, user-focused experiences
- Write clean, maintainable, and well-tested code with a focus on long-term scalability
- Drive technical discussions, mentor peers, and contribute to architectural strategy
- Rapidly prototype, measure success, and iterate based on user feedback
Requirements
- 7+ years of professional experience in frontend development — a must
- Deep expertise in React and TypeScript — a must
- Strong understanding of modern frontend architecture, performance, and accessibility
- Experience integrating REST APIs and working closely with backend systems
- Familiarity with cloud platforms (AWS/GCP) and CI/CD workflows
- A strong product mindset and curiosity about AI and intelligent interfaces
Nice to have
- Experience working at early-stage startups
- Experience with Go
- Experience building or maintaining design systems
- Contributions to open-source projects
- Experience working with AI tools or developer platforms
Benefits
- Work in a highly professional team. Informal and friendly atmosphere in the team
- Paid vacation — 20 business days per year, 100% sick leave payment
- Equipment provision
- Partially compensated educational costs (for courses, certifications, professional events, etc.)
- Legal and Accounting support in Poland
- Ability to work from our comfortable downtown office in Warsaw
- 5 sick days per year
- Medical insurance (after the end of the probationary period)
- English and Polish classes 2 times a week (online)
- Bright and memorable corporate life: corporate parties, gifts to employees on significant dates
Join us
To be considered for this position, you must have Polish citizenship, a D-type work visa, or a residence permit. Thank you!
Contribute to our growth
Know someone perfect for this role? Let us know about them. We have a referral program to recognize your support.
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