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I'm a Senior Full-Stack Engineer focused on building secure, scalable web platforms. I leverage React, TypeScript, REST APIs, and cloud-native services to deliver customer-facing products that are reliable and easy to maintain. I specialize in back-end validation, API deployment, end-to-end testing, and GDPR-aware engineering, collaborating with product, legal, and security teams to ensure privacy and compliance across regulated digital services.…I'm a Senior Full-Stack Engineer focused on building secure, scalable web platforms. I leverage React, TypeScript, REST APIs, and cloud-native services to deliver customer-facing products that are reliable and easy to maintain. I specialize in back-end validation, API deployment, end-to-end testing, and GDPR-aware engineering, collaborating with product, legal, and security teams to ensure privacy and compliance across regulated digital services.

Lukasz Domaradzki

Full Stack Developer, Web Developer, Back-End Developer, +2

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I'm a Senior Full-Stack Engineer focused on building secure, scalable web platforms. I leverage React, TypeScript, REST APIs, and cloud-native services to deliver customer-facing products that are reliable and easy to maintain. I specialize in back-end validation, API deployment, end-to-end testing, and GDPR-aware engineering, collaborating with product, legal, and security teams to ensure privacy and compliance across regulated digital services.…I'm a Senior Full-Stack Engineer focused on building secure, scalable web platforms. I leverage React, TypeScript, REST APIs, and cloud-native services to deliver customer-facing products that are reliable and easy to maintain. I specialize in back-end validation, API deployment, end-to-end testing, and GDPR-aware engineering, collaborating with product, legal, and security teams to ensure privacy and compliance across regulated digital services.

Available to hire

I’m a Senior Full-Stack Engineer focused on building secure, scalable web platforms. I leverage React, TypeScript, REST APIs, and cloud-native services to deliver customer-facing products that are reliable and easy to maintain.

I specialize in back-end validation, API deployment, end-to-end testing, and GDPR-aware engineering, collaborating with product, legal, and security teams to ensure privacy and compliance across regulated digital services.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Language

Polish

Fluent

English

Advanced

Work Experience

Senior Full-Stack Engineer at Google

June 1, 2023 - Present

Led development of secure customer-facing web applications using React, TypeScript, REST APIs and cloud-native services; improved release reliability by 30% through deployment validation, automated checks, and production observability. Led backend review and integration of authentication serverless and containerized workloads on modern cloud infrastructure. Built reusable React components, responsive layouts, and robust form handling, reducing implementation time for new features by 25%. Strengthened end-to-end testing and pre-release validation for critical user journeys. Collaborated with product, legal, and security stakeholders on privacy-sensitive features, applying GDPR-aware data handling and access restrictions for systems processing user-submitted content.

Full-Stack Developer at HSBC

September 1, 2018 - May 1, 2023

Engineered internal and customer-facing applications using React, JavaScript, TypeScript, and REST APIs; built backend services with PostgreSQL and service APIs, improving data consistency and reducing processing latency by ~20% through query tuning and improved error handling. Modernized deployment processes with CI/CD, environment standardization, and automated validation gates, enabling repeatable, same-day deployments. Implemented secure document and retention-aware processing with GDPR considerations and collaborated across teams to maintain availability and traceability.

Software Engineer at KVADOS, a.s.

August 1, 2014 - July 1, 2018

Built and maintained web applications and service integrations using JavaScript, SQL, REST APIs, and modular frontend architecture. Developed reusable UI components and data-driven screens, improving consistency and feature delivery. Optimized database interactions and application performance, reducing slow-query impact by ~15% through indexing and targeted refactoring. Contributed to end-to-end testing, release checklists, and deployment documentation to improve delivery quality and maintainability.