AI-first Product / Fullstack Engineer
Full-time, remotely. B2B Contract
I’m an AI-first Product / Fullstack Engineer focused on turning business problems into working product features. I take ownership of the full lifecycle: clarify the need, shape the solution, build across the stack, ship, support in production and improve from feedback
AI is central to my development workflow. I use coding agents to explore codebases, evaluate approaches, implement changes, write tests and investigate bugs. I set the context and acceptance criteria, break work into verifiable steps, review the output and own the technical decisions.
I believe AI gives an engineer room to own more of the product. My goal is to shorten the path from an idea to something users can actually use, work through uncertainty and keep product context connected to implementation. I care about the outcome, the trade-offs and what it takes to keep the feature working
End-to-end ownership continues after launch: checking production behavior, investigating issues, improving performance, handling edge cases and iterating on user feedback. I want to stay accountable for the feature as it becomes part of the product
I’m also focused on bringing AI into products through LLM integrations, RAG and MCP-based tooling, with attention to reliability, cost and maintainability.
This approach builds on 4+ years across insurance, adtech, e-commerce and SaaS: commission calculation services, enterprise integrations, reporting dashboards, payment flows and modernization of existing systems. My foundation is backend engineering, complex business logic, data and asynchronous processing, with hands-on frontend and delivery experience
Core stack: PHP, Laravel, Symfony, Vue.js, React, JavaScript/TypeScript, PostgreSQL, MySQL, ClickHouse, Redis, RabbitMQ, Docker, CI/CD, PHPUnit and PHPStan.
Technical Skills & Experience
- Backend Development: 5+ years of commercial experience with PHP, Laravel, Symfony, Yii, REST APIs, and microservices architecture.
- Frontend Development: Experience with JavaScript, TypeScript, Vue.js, React.js, HTML, and CSS.
- Databases & Performance Optimization: PostgreSQL, MySQL, MongoDB, Redis, ClickHouse, Elasticsearch, SQL query optimization.
- Architecture & Engineering Practices: OOP, SOLID, MVC, Design Patterns, GRASP, scalable application architecture.
- DevOps & Infrastructure: Docker, AWS, CI/CD, Git, RabbitMQ.
- Testing & Code Quality: PHPUnit, Jest, PHPStan, automated testing.
- AI-Assisted Development: Hands-on experience with Claude Code, Cursor, Codex
- Additional Technologies: Golang, Composer.
Professional Experience
- Development and maintenance of SaaS platforms, fintech solutions, e-commerce systems, and enterprise applications.
- Design and implementation of backend microservices, including complex calculation engines and commission distribution systems.
- Database optimization, asynchronous processing, and performance improvements for high-load applications.
- Integration of third-party APIs, payment gateways, analytics platforms, and external services.
- Modernization and optimization of legacy applications.
- Technical ownership of backend solutions and integrations.
Languages
- English — B2 (Upper-Intermediate).
- Ukrainian — Native.
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Job reference: #20426