Marcin Biernat
Web3 DeveloperAI is analyzing your overall score…
Identifying your key strengths…
Evaluating your skill match against the job requirements…
Assessing your cultural and operational fit
AI is analyzing your overall score…
Identifying your key strengths…
Evaluating your skill match against the job requirements…
Assessing your cultural and operational fit
Staff Backend Engineer | Distributed Systems, PostgreSQL, Data Pipelines, AWS | Ex-ClickUp
Staff Backend Engineer with 14+ years of experience building backend systems, distributed architectures, data pipelines, and high-scale product infrastructure. Most recently at ClickUp, I owned and delivered complex backend initiatives across real-time reporting, data migrations, PostgreSQL performance, observability, and legacy system modernization. I work well across product, frontend, infrastructure, and platform teams, turning ambiguous requirements into reliable production systems. I’m especially strong in PostgreSQL, AWS, Kafka, TypeScript, Node.js, distributed systems, event-driven architecture, observability, and backend technical leadership. Open to Staff Backend Engineer, Lead Backend Engineer, Principal Engineer, and Engineering Manager roles, especially remote or Kraków-based.
AGH University of Krakow
Master of Science (M.S.)
January 1, 2013 – January 1, 2015
AGH University of Krakow
Bachelor of Science (BS), Applied Computer Science
N/A – Present
ClickUp
Staff Backend Engineer
July 1, 2022 – May 1, 2026
ShopRunner
Lead Software Engineer
February 1, 2021 – July 1, 2022
Pragmatic Coders
Tech Lead
November 1, 2019 – January 1, 2021
Pragmatic Coders
Senior Software Developer
July 1, 2017 – November 1, 2019
Pragmatic Coders
Senior Python Developer
August 1, 2015 – July 1, 2017
Printbox, Photo Products
Python Developer
September 1, 2012 – March 1, 2015
HiddenData
Python Developer
March 1, 2012 – September 1, 2012
Freelance Python
Freelance Python Developer
January 1, 2010 – January 1, 2012
Running Solidity smart contracts and Dapps workshop
November 1, 2017 – January 1, 2018
Created and delivered a hands-on technical workshop on Ethereum smart contracts and decentralized applications, teaching Solidity fundamentals, smart contract deployment, Web3 integration, and practical DApp development.
Cultural Fit Analysis
The candidate has a diverse background spanning e-commerce, IoT, and fintech with a clear focus on backend and distributed systems. Their previous role as a 'Lead backend and smart contract engineer in a fintech startup based on Ethereum blockchain' directly aligns with the target Web3 Developer role. The project 'Running Solidity smart contracts and Dapps workshop' further demonstrates a strong interest and commitment to the Web3 space. The breadth of technologies and industries indicates adaptability and a willingness to learn new domains.
Soft Skills & Operational Fit
The candidate's experience as a Staff Backend Engineer and Lead Software Engineer indicates strong leadership, cross-functional collaboration, and end-to-end project ownership. Their work on modernizing legacy systems, building data pipelines, and setting up observability practices suggests a proactive and robust operational mindset. The description of delivering workshops also points to strong communication and mentorship abilities.