Paul Serban
6+ years turning complex architectural constraints into production systems. I build agentic AI control planes, high-throughput platforms, and the internal tooling that removes bottlenecks - eliminating process cycle overhead and cutting operations from hours to minutes. The engineer you hire when you need systems that scale and architecture decisions that age well.
Career
Apr 2024 - present
Architected and led an AI-powered testing platform (Python - AWS Bedrock - AgentCore) that cut QA for new state launches ~90% (3 months -> 1 week) across 3,000+ games. Owned 3rd-party game-provider integration across MERN microservices on K8s/AWS.
Nov 2019 - Apr 2024
Built enterprise front-ends on Adobe Experience Manager for financial, automotive and healthcare clients. Cut build time 50% and bundle size 30% (Webpack -> Vite), reduced new-developer onboarding from 3 weeks to 1 via ITCSS/BEM, and delivered WCAG AA across 26 Swiss locales on a 1.5M-page banking site.
Jan 2019 - Nov 2019
Full-service freelance practice for EU clients across MERN, Python, AWS and DevOps.
Toolkit
Not a keyword wall - the tools I reach for and the value each one delivers.
AI & Backend
Python
AI/agent workflows on AWS Bedrock & AgentCore - turning LLMs into production test automation that cut QA ~90%.
Node.js
Event-driven microservices & internal tooling - automated a 6-hour daily bottleneck down to 6 minutes.
TypeScript
End-to-end type safety across MERN monorepos - fewer production incidents, safer refactors.
Cloud & Platform
AWS
Bedrock, S3/CloudFront, Lambda, EC2, IAM - cost-optimised, secure delivery at scale.
Kubernetes
Orchestrates production microservices - zero-downtime, multi-environment releases.
Docker
Reproducible environments - consistent parity from local to production.
Terraform
Infrastructure as code - auditable, repeatable platform provisioning.
Frontend
React
Component architecture for high-traffic platforms - accessible, performant UI.
Next.js
SSR/SSG migrations that lift Core Web Vitals - cut frustrated clicks 75%.
SCSS
ITCSS/BEM design systems - onboarding cut from 3 weeks to 1, zero style regressions.
Observability & CI/CD
Datadog
Latency & error dashboards per provider - surfaced fixes that lifted retention 50%.
Grafana
Grafana/Loki/Prometheus stacks - full-stack monitoring without vendor lock-in.
GitHub Actions
Multi-env pipelines with promotion & rollback - releases are push-button.
Selected work
Featured
Team lead (SUInergy · 4 engineers)
Problem. Invoice financing is slow, opaque, and intermediary-heavy - SMEs wait 30-90 days for cash while factoring stays paperwork-bound and hard to audit.
Outcome. 1st place in the DeFi track and Best Business Model at the Sui Foundation * Comets of Web3 hackathon, with a working MVP on Sui testnet.
Featured
Team lead (4 engineers)
Problem. On-chain apps lack readable, queryable project state.
Outcome. Placed 2nd, shipping a working dApp plus indexer end-to-end.
Featured
Architect & lead implementer
Problem. Content lived in multiple places that drifted apart - blog, portfolio, news digest, and quiz all needed the same source of truth.
Outcome. Publishing collapsed to one command; new content types are a migration + ingest mapping.
Featured writing
June 03, 2026
Discover how Tony Robbins' 6 Human Needs framework applies to software engineering careers - with practical strategies for certainty, growth, and purpose
Read post →More reading