Martin Bažík

Full-stack developer with 20+ years of experience in designing, building, and leading development of high-performance web applications. Specialized in React.js, TypeScript, and Go (Golang), with a proven track record in modernizing legacy systems, optimizing performance, and delivering scalable solutions. Experienced leader in roles such as Deputy CTO, Software Architect, and Team/Tech Lead, managing teams of up to 10 developers and driving projects from concept to successful deployment. Passionate about applying the latest technologies and best practices to build better applications, improve team efficiency, and deliver measurable business value.

Key Achievements:

Delivered 50+ web applications for clients in Europe and the US, some with millions of monthly active users.
Reduced application load times by up to 40% through architectural optimizations.
Migrated multiple large-scale legacy systems to modern stacks, boosting maintainability and speed of development.
Introduced CI/CD pipelines and automated testing, cutting release cycles from weeks to days.

Download CV

Clients

PHP, Nette, RabbitMQ

React.js, Go, PHP, Symfony, Python, AWS

React.js, Go, PHP, Symfony

React.js, PHP, Nette, Go, Docker, AWS, RabbitMQ, MySql, MongoDb

React.js, Docker

React.js, Google Maps API

PHP, Nette, RabbitMQ, MongoDb

PHP, Nette, MySql

Astro, React.js

Work Experience

Dec 2021 - Sep 2025

Co-CTO & Architect- Eyeball

Responsible for web app architecture, quality, development processes and feature development management and delivery. Leading a team of backend & frontend developers, designers, testers - managing workload, code reviews, support, mentoring and teaching. AWS Services configuration, CI/CD configuration. Docker, PHP, Symfony, React, Typescript, MySQL, AWS ElasticBeanstalk, RDS, Aurora, Socket.io, Gitlab

2020 - present

Co-founder, Web & Backend- UložDoklad

Scan QR code from cash receipts and have overview of your expenses. React.js on frontend and Go(lang) on backend. Runs in Google cloud. Landing page made using Next.js, web app uses React, Redux Toolkit. Setup GCP App Engine, Cloud Build, Cloud Run. Bitbucket pipelines and GitHub actions.

Apr 2021 - Dec 2021

Team leader- Allied Irish Banks

Leading a team of React.js developers working on mortgage calculator for bank employees. Introduced typescript and other code quality tools to the codebase, worked on user stories. Project successfully shipped. React, Redux, Formik, Typescript, Ramda

Jun 2020 - Apr 2021

Team leader- Carvago/TEAS

Leading a team of React.js developers working on service part of new TEAS DMS. Taking part in architectural decisions. Next.js, redux-toolkit, saga.

Jun 2018 - May 2020

React.js developer/architect- GotCourts Ltd.

React.js and some Go(lang) and PHP. Remade player facing web app from scratch. Lead developer and architect. React.js, redux, rx.js, websockets. AWS Lamda & Go microservices, sqs, sns, docker setup for backend.

Nov 2013 - Jun 2018

Deputy CTO & Architect- Billdu Ltd.

Leading invoicing SaaS. Tech design and development of online web app and supporting services. Worked on main billdu.com webapp, API, created many supporting services such as logs processing, newsletter system, mailing system, build pipeline for Docker, mobile notifications server, all in Go(lang) and React.js. AWS and Docker setup for EC2, IAM, secrets management, S3 etc. React.js, websockets, PHP, Nette, Doctrine2, Symfony components, Go(lang), RabbitMQ, MySQL, MongoDb, Docker

May 2013 - Nov 2013

Web developer- dotBlue

Real-time JS and backend development, refactoring of code, bringing new features to clients, making their apps more performant, realtime features integration. PHP, Nette, JS.

Oct 2012 - Apr 2013