Backend & Cloud Engineer
Production NestJS microservices and the cloud infrastructure they run on — AWS, Kubernetes, or both — for B2B SaaS, marketplaces, and regulated platforms. Delivered through Big Bad Wolf, working remotely with international teams from Gdańsk.
NestJS, TypeScript, Node.js. Multi-tenant APIs, CQRS, event-driven and durable-workflow architectures (Temporal.io). tRPC + Zod contracts, payments, identity, RBAC/ABAC.
AWS Serverless (Lambda, Step Functions, EventBridge) and Kubernetes (Helm, ArgoCD, Istio). Terraform with 100+ modules in production. GitHub Actions / GitLab CI/CD. Vault, OpenTelemetry, security-pipeline tooling.
Agentic systems on NestJS + Temporal with human-in-the-loop approval. Computer-vision pipelines on Modal GPU (COLMAP + OpenMVS, Cloudflare R2 storage).
Backend platform engineering on an Nx monorepo of NestJS microservices running on Kubernetes — Temporal.io durable workflows, tRPC + Zod contracts, Drizzle on PostgreSQL with pgvector. Platform layer on Helm, ArgoCD, Istio, HashiCorp Vault, Grafana LGTM + OpenTelemetry, and a Checkov / Semgrep / CodeQL / OSV security pipeline. Agentic systems: NestJS + Temporal agent-swarm with human-in-the-loop approval. Working under regulated data-protection requirements.
B2B Expert Network SaaS on AWS Serverless. Designed the multi-tenant API platform with CQRS and event-driven patterns. Built an automated outreach engine, a graph-based recommendation system on Amazon Neptune, and a real-time event-processing pipeline (MongoDB Change Streams → Kinesis). Maintained 100+ Terraform modules across four environments with automated CI/CD. Led technical recruiting, performance reviews, and offboarding for backend & DevOps engineers.
Global coworking marketplace. Developed serverless v3 APIs on NestJS + AWS Lambda with a hybrid SQL search engine (PostgreSQL + ParadeDB) and geospatial capabilities. Maintained a modular monolith of 250+ models managing global booking lifecycles, dynamic pricing, and Stripe payment processing. Engineered high-volume data sync pipelines (GraphQL + EventBridge) aggregating global inventory across major workspace providers. Optimized deployment workflows and async queue-based processing on AWS SQS.
Backend and DevOps engineering for international clients delivered through a Polish software house. AWS and Kubernetes infrastructure, CI/CD pipelines, and containerization strategies across multiple product engagements. Notable project: aarmy.com.
Image-to-3D-mesh pipeline for darkponyfactory. COLMAP + OpenMVS running on Modal GPU (A10G), Cloudflare R2 for storage, dashboard on Cloudflare Pages, infra on AWS Route53. darkponyfactory.pl
7+ years engineering production backends, with deeper roots in the Node.js / AWS ecosystem and a strong DevOps / IaC discipline. Engineering leadership background — technical recruiting, performance reviews, and mentoring backend and DevOps engineers.
Postgraduate in Cybersecurity (Jagiellonian University, 2024–2025) — security-first thinking integrated into architectural decisions rather than bolted on later.
Working with international teams in English. Based in Gdańsk, Poland.