Falcon Labs: Senior FS Engineer (Ukraine, Armenia, Belarus)

<p>An advanced checkout marketing platform that transforms the post-purchase moment into a high-impact engagement opportunity. Using AI and real-time decisioning, it delivers personalized offers during checkout, helping businesses boost revenue while enhancing the customer experience. Built by experienced ad-tech professionals, it combines ad-serving infrastructure, scalable analytics, and seamless integrations to power high-performance e-commerce growth.</p><p>We are currently looking for a <strong>Senior Full Stack Engineer </strong>to join our team and help build and scale this next-generation platform.</p><p><strong>Our Tech Stack : Backend:</strong> KeystoneJS 6, Node.js, PostgreSQL 16, Redis, Prisma ORM <strong>Frontend:</strong> Next.js 15, React 19, TypeScript, Tailwind CSS, Radix UI <strong>Infrastructure:</strong> AWS ECS, Terraform, Docker, Application Load Balancer <strong>Tooling:</strong> Yarn Workspaces, Jest, Playwright, Task Runner, Sentry <strong>AI-Forward:</strong> We use AI extensively across development, automation (n8n), product management, and marketing</p><p><strong></strong></p><p><strong>What You'll Do:</strong></p><ul><li>Architect and implement core ad-serving infrastructure</li><li>Design high-performance APIs that handle real-time bidding</li><li>Create sophisticated analytics systems for revenue tracking</li><li>Manage database migrations and performance optimization</li><li>Implement third-party integrations with major partners</li><li>Build developer tools and automation workflows</li><li>Create comprehensive analytics dashboards</li><li>Optimize queries and caching strategies</li><li>Implement A/B testing frameworks</li><li>Work directly with founders and product team</li><li>Shape technical architecture and engineering culture</li><li>Mentor junior developers and contractors</li></ul> <br><h3>Requirements</h3> <p><strong>Who We're Looking For:</strong></p><p><strong>Core Requirements</strong></p><ul><li><strong>5+ years</strong> of full-stack development experience</li><li><strong>Expert-level</strong> TypeScript/JavaScript and modern frameworks</li><li><strong>Production experience</strong> with PostgreSQL, APIs, and cloud infrastructure</li><li><strong>Ownership mindset</strong> - you see problems and solve them without being asked</li></ul><p><strong>Startup DNA</strong></p><ul><li><strong>Sense of urgency</strong> - you understand that speed and quality aren't mutually exclusive</li><li><strong>Adaptability</strong> - you thrive when priorities shift and requirements evolve</li><li><strong>AI enthusiast</strong> - you see AI-driven development as essential, not optional</li><li><strong>Disagree and commit</strong> - you voice opinions then align with team decisions</li><li><strong>Multitasker</strong> - you can context-switch between infrastructure, frontend, and business logic</li></ul><p><strong>Technical Edge</strong></p><ul><li><strong>Bleeding-edge curious</strong> - you experiment with new technologies and share learnings</li><li><strong>Data-driven</strong> - you make decisions based on metrics, not assumptions</li><li><strong>Systems thinker</strong> - you understand how pieces fit together at scale</li></ul><p><strong>Bonus Points</strong></p><ul><li><strong>Ad-tech experience</strong> - you understand RTB, DSPs, attribution, or affiliate marketing</li><li><strong>Data engineering</strong> - you've built ETL pipelines, analytics systems, or data warehouses</li><li><strong>Our exact stack</strong> - KeystoneJS, Next.js, PostgreSQL, AWS infrastructure</li></ul><p><br></p>

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