Open to opportunities

Adam Kowalski

@adamkowalski

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Seasoned full stack engineer specializing in WordPress APIs and ReactJS for scalable SaaS and e-commerce growth.

Poland

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What I'm looking for

I want a collaborative, agile team where I can own end-to-end WordPress + React builds—shipping scalable APIs, secure authentication, and performance-first UI from Figma. I’m motivated by clear acceptance criteria, quality testing, and mentoring through code reviews.

I am a seasoned full stack engineer with over 5 years of experience delivering scalable WordPress and ReactJS solutions for fast-growing SaaS and e-commerce platforms. I architect robust WordPress APIs, build custom plugins, and integrate complex UI designs from Figma into responsive, high-performance applications.

I lead end-to-end product ownership—from API integrations and cloud deployments to building features that directly improve growth and efficiency. In my recent role, I designed and developed a custom e-commerce platform with WordPress and ReactJS, integrated third-party dropshipping APIs, and automated order fulfillment workflows while reducing manual intervention by 40%.

I also focus heavily on engineering quality and reliability: performance optimization (including caching and efficient database queries), secure authentication and authorization (AWS Cognito, OAuth2, role-based access), and CI/CD automation with GitHub Actions and Docker. I thrive in collaborative, agile environments and enjoy mentoring others through code reviews and scalable API integration best practices.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Engineer

Sotec Consulting

Apr 2024 - Jan 2026 (1 year 9 months)

Led the design and development of a WordPress + ReactJS e-commerce platform integrating third-party dropshipping APIs and automating order fulfillment workflows. Improved operations by reducing manual intervention by 40% and cut page load times by 30% through caching, lazy loading, and optimized database queries.

WordPress ReactJS REST APIs Plugin Development MySQL AWS Cloudwatch Docker Performance Optimization

Software Engineer

NineDots, LLC

Jan 2021 - Aug 2024 (3 years 7 months)

Developed SaaS applications for e-commerce clients, building custom WordPress plugins and ReactJS admin dashboards with RESTful integrations for payments, shipping, and inventory management. Improved reliability and scalability by optimizing SQL queries and caching strategies to reduce database load during high-traffic events.

WordPress ReactJS WooCommerce OAUTH2 Role Based Access Control AWS Docker Jest SQL Optimization

Backend Developer

Liberty Mutual Insurance

Oct 2018 - Dec 2020 (2 years 2 months)

Engineered PHP and Node.js backend microservices for insurance workflows, integrating third-party APIs for claims processing and policy management. Delivered reliable REST APIs and automated test pipelines using PHPUnit/Jest, while working with DevOps to containerize and deploy on AWS to meet high-availability SLAs.