Open to opportunities

Robert Radecki

@robertradecki

Message

Senior backend engineer building scalable Node.js APIs on AWS for enterprise reliability.

Poland

Message

What I'm looking for

I’m looking for a role where I can design and scale reliable backend services and APIs on AWS, improve performance under load, deepen observability, and ship with strong testing and CI/CD—while collaborating closely with product and QA.

I’m a Senior Backend Engineer with 8+ years building scalable, high-throughput services and APIs for enterprise clients, specializing in Node.js and TypeScript, REST API design, and cloud-native deployments on AWS. I’ve led refactors and testing initiatives that improved performance and reduced incident rate, including typical latency reduction and fewer production rollbacks.

I turn product requirements into resilient backend architectures, designing robust endpoints and backward-compatible changes that support smooth enterprise rollouts. From modular microservices and containerized deployments to CI/CD automation, observability with CloudWatch, and disciplined testing with Jest/SuperTest and Mocha, I focus on reliability under high load—and I also mentor others to raise backend quality and performance profiling skills.

Experience

Work history, roles, and key accomplishments

Senior Backend Engineer

Korn Ferry

Jan 2025 - Apr 2026 (1 year 3 months)

Designed REST API endpoints and backend services for talent-management features using Node.js and TypeScript, improving response consistency across endpoints. Refactored a monolithic service into modular microservices and improved testing, CI/CD, and observability to increase reliability and reduce deployment issues.

EC2 TypeScript REST APIs Microservices Docker GitHub Actions Jest Supertest MySQL Cloudwatch CI CD Unit Testing Integration Testing Backwards Compatible Changes AWS ECS

Backend Engineer

Selene Finance LP

Sep 2022 - Dec 2024 (2 years 3 months)

Built and maintained RESTful APIs for loan servicing workflows using Node.js and TypeScript at enterprise scale. Improved integration quality with testing, optimized endpoints for performance, and strengthened monitoring and API access controls.

REST APIs TypeScript Mocha Integration Testing Docker Cloudwatch MySQL PostgreSQL DynamoDB Elasticsearch Monitoring Performance Profiling EC2

Software Engineer

Siemens

Oct 2019 - Sep 2022 (2 years 11 months)

Developed backend modules in Node.js and migrated legacy Java APIs to modern REST interfaces, improving integration with frontend systems. Led performance profiling and release-hardening practices, including CI/CD, OpenAPI documentation, and service protections for burst traffic.

REST APIs PostgreSQL MySQL Unit Testing Integration Testing Systems Testing Jenkins GitHub Actions Docker OpenAPI API Documentation SonarQube Load Testing Microservices Architecture Reviews EC2

Backend Developer

IntexSoft

Aug 2014 - Oct 2019 (5 years 2 months)

Implemented backend services for B2B integration endpoints using JavaScript and early Node.js frameworks. Designed and tuned MySQL schemas for reporting performance, built Docker-based development environments and CI/test automation, and improved API reliability through standardized contracts and authentication/retry middleware.