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I'm a Senior Full Stack Engineer with 8+ years of experience designing and delivering scalable SaaS platforms for European and US markets. I specialize in full-stack development, system architecture, and cloud-native solutions, with a track record of leading complex projects, boosting performance, and mentoring engineering teams. I have hands-on experience with React, Node.js, Go, and Python, and deep knowledge of microservices, distributed systems, and high-availability cloud deployments. I excel at translating business requirements into robust, scalable technical solutions.…I'm a Senior Full Stack Engineer with 8+ years of experience designing and delivering scalable SaaS platforms for European and US markets. I specialize in full-stack development, system architecture, and cloud-native solutions, with a track record of leading complex projects, boosting performance, and mentoring engineering teams. I have hands-on experience with React, Node.js, Go, and Python, and deep knowledge of microservices, distributed systems, and high-availability cloud deployments. I excel at translating business requirements into robust, scalable technical solutions.

Remigiusz Gieras

Full Stack Developer, Web Developer, Front-End Developer, +3

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I'm a Senior Full Stack Engineer with 8+ years of experience designing and delivering scalable SaaS platforms for European and US markets. I specialize in full-stack development, system architecture, and cloud-native solutions, with a track record of leading complex projects, boosting performance, and mentoring engineering teams. I have hands-on experience with React, Node.js, Go, and Python, and deep knowledge of microservices, distributed systems, and high-availability cloud deployments. I excel at translating business requirements into robust, scalable technical solutions.…I'm a Senior Full Stack Engineer with 8+ years of experience designing and delivering scalable SaaS platforms for European and US markets. I specialize in full-stack development, system architecture, and cloud-native solutions, with a track record of leading complex projects, boosting performance, and mentoring engineering teams. I have hands-on experience with React, Node.js, Go, and Python, and deep knowledge of microservices, distributed systems, and high-availability cloud deployments. I excel at translating business requirements into robust, scalable technical solutions.

Available to hire

I’m a Senior Full Stack Engineer with 8+ years of experience designing and delivering scalable SaaS platforms for European and US markets. I specialize in full-stack development, system architecture, and cloud-native solutions, with a track record of leading complex projects, boosting performance, and mentoring engineering teams.

I have hands-on experience with React, Node.js, Go, and Python, and deep knowledge of microservices, distributed systems, and high-availability cloud deployments. I excel at translating business requirements into robust, scalable technical solutions.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Senior Full Stack Engineer at Homebase

March 1, 2023 - December 1, 2025

Architected and implemented Go-based microservices handling 1,500–2,000 requests/sec and supporting 120,000+ users. Designed React frontend modules optimized for performance, reducing Time-to-Interactive (TTI) by ~45%. Led the migration from monolithic architecture to microservices, defined patterns and best practices for the engineering team. Introduced Redis caching strategies reducing database load by 40% and enabling horizontal scaling. Owned 3 core production services, managed uptime, performance, and feature roadmap from conception to deployment. Mentored 4 engineers, conducted architecture reviews, and drove cross-team collaboration for system reliability and maintainability. Containerized services with Docker and deployed via Kubernetes on AWS, standardizing CI/CD pipelines.

Full Stack Engineer at Allegro

March 1, 2020 - February 1, 2023

Designed and developed Node.js and Go microservices for large-scale e-commerce operations and 50+ corporate clients. Built React internal tools and dashboards for engineering and operations teams, improving productivity and operational insights. Defined and maintained REST and GraphQL APIs used across multiple services, optimizing performance and reliability. Implemented Redis caching and PostgreSQL/MySQL query optimization, reducing API latency by ~35% and improving system throughput. Introduced monitoring, logging, and autoscaling using Prometheus and Grafana, achieving 99.9% uptime. Led code reviews, team onboarding, and mentoring, driving adoption of microservices best practices. Established CI/CD pipelines using GitHub Actions and Docker-based deployments.

Full Stack Engineer at Netguru

January 1, 2018 - January 1, 2020

Developed React and Vue.js frontend architectures and Node.js/Python backend APIs for SaaS platforms serving 30,000+ users. Built secure authentication and role-based access control systems. Optimized PostgreSQL queries, improving average response times from 450ms → 250ms, and enhanced frontend rendering efficiency. Contributed to team processes, introducing structured pull-request reviews, improving code quality, collaboration, and CI/CD workflows. Collaborated with cross-functional teams to deliver reliable, scalable SaaS products for international clients.