Senior Front-end Engineer

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.

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Аbout the role

As a Senior 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

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