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Austin Bielski

@austinbielski2

Message

Senior full-stack software engineer delivering scalable, secure web and cloud solutions.

Poland

Message

What I'm looking for

I seek senior engineering roles building scalable, secure full-stack or cloud-native systems, emphasizing automation, AI integrations, and collaborative Agile teams.

I am a Senior Software Engineer with 9+ years of experience building full-stack web applications and scalable backend systems using PHP (Laravel, Symfony), Node.js, Python, and modern frontend frameworks like React and Vue.

I have led full-stack development at enterprise scale, designing microservices (C#, .NET, Node.js), improving API performance, automating infrastructure with Docker and Kubernetes, and implementing security (OAuth2, JWT) to support millions of users with high uptime.

I focus on delivering data-driven solutions and AI integrations that simplify complex processes, optimize performance, and enhance user experience while collaborating in Agile teams to meet product goals reliably.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Celonis SE

Jan 2021 - Present (4 years 11 months)

Led full-stack development of web applications using Node.js, TypeScript, and React, increasing customer satisfaction by 30% and user engagement by 15% while improving data retrieval speeds by 50% for 500,000+ active users.

Node TypeScript React GraphQL REST APIs Docker Kubernetes OAUTH2 JWT

Software Engineer

Solaris

Mar 2018 - Dec 2020 (2 years 9 months)

Developed full-stack applications with Node.js, TypeScript, and React, improving customer satisfaction by 30% and reducing data retrieval times by 50%, while architecting microservices to accelerate feature deployment.

Node TypeScript React GraphQL REST APIs C++.NET Docker Kubernetes

Full-stack Developer

Prodio

May 2016 - Feb 2018 (1 year 9 months)

Built PHP (Laravel) and Vue.js applications that increased conversion rates by 20%, implemented performant backend modules in C++ and Rust to cut execution time and memory usage, and managed databases to improve query performance by 35%.