Poland onlyWe're building the foundational infrastructure for agentic systems that interact with the real web. Your job: engineer high-fidelity, high-resilience browser automations that operate seamlessly under real-world constraints, security layers, and dynamic UIs. This is a role for a white-hat hacker who deeply understands how browsers work, how the web defends itself, and how to build automations that behave indistinguishably from humans, all within authorized, compliant frameworks.
What You'll Do
- Architect and implement real-world browser automation pipelines using Playwright (preferred) or Puppeteer, with custom extensions where needed
- Engineer interactions across dynamic, JS-heavy frontends (e.g. React/Next.js, Vue, Angular) for authorized agentic workflows
- Build systems that understand and respect client-side integrity checks (JS challenges, CSPs, headless detection, fingerprinting) while operating within permitted boundaries
- Analyze and emulate authentic user behaviors (input timing, mouse movement, scroll patterns) for legitimate automation use cases
- Manage complex authorized sessions: handle auth flows, tokens, cookies, WebStorage for permitted access patterns
- Operate at the network and TLS layer: configure proxies, manage headers, optimize connection handling for compliant high-volume operations
- Build systems for monitoring and debugging automation stability across changing frontends
- Reverse engineer complex UIs to build robust extraction layers that adapt to DOM mutations and A/B tests
Must-Have Skills
- Python expert: asyncio, aiohttp, Playwright Python API, multiprocessing/threading, typing, Pytest
- Advanced JavaScript: DOM APIs, event simulation, JS execution in automation contexts, modern framework internals
- Strong grasp of browser internals: DevTools Protocol, rendering pipeline, user-agent behavior, navigator APIs
- Comfort with network-level tooling: proxy management, HAR analysis, Chrome NetLog, performance debugging
- Experience with web security mechanisms: understanding bot detection systems, CAPTCHA flows, modern web defenses
- Familiarity with system observability: logging, performance tracing, debugging automation at scale
- DevOps experience: Docker, CI pipelines, metrics, and autoscaling infrastructure
Bonus
- Contributions to browser automation or testing frameworks
- Experience with custom browser configurations and headless optimization
- Security research background in web technologies and browser behavior
- Experience building compliant, high-scale automation systems
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 supportin Poland
- Ability to work from our comfortable office in Warsaw at Prosta 51
- 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
United Kingdom
BY and PL only
DZ, AR + 1 more
