Senior Fullstack Engineer - AI

What you will be working on

• Delivering product features with AI coding agents as the primary implementation loop: writing specifications and context-rich tasks that include architecture, team standards, existing patterns, and acceptance criteria; iterating until output meets quality standards.
• Reviewing and verifying agent-generated code with the same rigor applied to colleague-generated code, catching plausible but incorrect implementation before production.
• Taking end-to-end ownership of features: clarifying requirements, understanding problems, owning quality and test coverage, delivering to production, and monitoring behavior, performance, and regressions after release.
• Improving the team’s use of agents through shared context, rules, prompts, and guardrails.
• Conducting code and documentation reviews to ensure quality, share knowledge, and maintain codebase consistency.
• Participating in duty rotations: monitoring production systems, responding to incidents, and maintaining service availability.
• Growing technically within a team focused on clean architecture and high delivery standards.

What we expect from you

• 5+ years of commercial software engineering experience.
• Hands-on experience building production software with AI coding agents, such as Claude Code, Cursor, Codex, or similar, including setting context, decomposing work, and validating outputs. Be prepared to describe outcomes rather than only tool names.
• Practical commercial experience with PHP, Node.js, or Golang.
• Hands-on experience with JavaScript, TypeScript, and React.
• Solid SQL skills and experience with relational databases such as MySQL or PostgreSQL.
• Working knowledge of Docker for application development and deployment.
• Practical experience with testing methodologies and an opinion on sufficient test coverage.
• At least basic knowledge of DevOps, CI/CD, AWS, and cloud-native solutions.
• Ability to write technical documentation using approaches such as the C4 model and ADRs.
• Strong task decomposition and prioritization skills.
• Fluent written and spoken English.

What we offer

• Flexible working: remote, hybrid, or office options across the US, Poland, Romania, and Ukraine.
• Competitive pay and equity: market salaries, performance bonus, and stock options.
• Growth and learning: courses, conferences, and internal mobility opportunities.
• Health and well-being: health coverage, wellness support, and quarterly Mental Health Days.
• Family-friendly benefits: flexibility for parents, Junior Club, family days, and pet-friendly offices.
• Giving back: donation matching and humanitarian aid through the airSlate Care programme.