Senior Fullstack Engineer - AI

Stack

Responsibilities

• ▹Deliver product features with AI coding agents as the primary implementation loop: write specs and context-rich tasks and iterate until the output meets the bar
• ▹Review and verify agent-generated code with the same rigor as a colleague's
• ▹Take full ownership of every feature end-to-end: clarify requirements, own quality and test coverage, deliver to production, then monitor behavior, performance and regressions
• ▹Improve how the team works with agents: shared context, rules, prompts and guardrails
• ▹Conduct code and documentation reviews for quality and knowledge sharing
• ▹Participate in duty rotations: monitor production systems and respond to incidents

Requirements

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

Soft skills

What we offer

• ▹Flexible working environment: offices in the United States, Poland, Romania or Ukraine, or remote from many countries
• ▹Competitive compensation, performance-based bonus and stock options
• ▹Professional growth: courses, conferences, learning resources and internal mobility
• ▹Country-specific health coverage, wellness programmes and fitness options
• ▹Quarterly company-wide Mental Health Days
• ▹Family-friendly culture
• ▹Charitable initiatives through the airSlate Care programme
• ▹Open communication, including company-wide Q&A sessions with the CEO

About the company

airSlate is a global SaaS company building no-code workflow automation, electronic signature and document management solutions (SignNow, pdfFiller, DocHub, altaFlow, Instapage, US Legal Forms), with teammates in more than 20 countries. The SignNow team has 100+ people and serves over 28 million users.