Antoni Kowalski
@antonikowalski
Senior software engineer specializing in scalable full‑stack web applications.
United KingdomWhat I'm looking for
I am a Senior Software Engineer with 7+ years designing, developing, and maintaining responsive, user-focused web applications, grounded in strong algorithm and computer science fundamentals.
I have led Agile teams, mentored junior engineers, and delivered production-ready APIs and large-scale deployments—improving user engagement, system performance, and operational efficiency across projects in fintech, healthcare, and enterprise ERP.
My technical breadth includes C++, C#, modern JavaScript frameworks (React, Vue, Angular), backend services (.NET, Node.js), cloud deployments (Azure, AWS), databases, and DevOps practices; I focus on scalable, secure solutions that drive measurable business impact.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Perplexity
Mar 2023 - Mar 2025 (2 years)
Managed large-scale deployment of JupyterHub and server-side applications for ~5,500 students, automated administration tasks to reduce manual work 200%, and developed responsive web applications that increased user engagement by 30%.
BLDeveloped serverless web applications and REST APIs, built video analytics and multi-camera tracking from scratch, and improved an optimization algorithm to reduce automation cycle time in production.
Software Engineer
Mitrefinch
Sep 2016 - Jan 2018 (1 year 4 months)
Delivered 20+ client-facing websites and e-commerce platforms using modern JavaScript frameworks, improved cross-browser compatibility and SEO raising organic traffic 35%, and automated CI/CD pipelines to cut deployment time significantly.
Education
Degrees, certifications, and relevant coursework
TSThe London School of Economics and Political Science
Bachelor’s degree, Information Technology
2013 - 2016
Completed a Bachelor’s degree in Information Technology at the London School of Economics and Political Science from September 2013 to June 2016.
Availability
Location
United KingdomAuthorized to work in
Job categories
Skills
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