Akos Szabacsi

Professional Summary

Senior full stack engineer with 10+ years of experience across employed and freelance roles. Former software developer at CAE and quantitative developer at Citi; since 2018 delivering B2B subcontract projects and own products across Europe. Completed 13+ client engagements spanning product engineering, multicloud platforms, and CI/CD. Strong background in React and TypeScript frontends, Node.js microservices, and cloud-native platforms on AWS, Azure, and GCP. Designs and operates CI/CD pipelines, infrastructure as code (Terraform), and reliable, test-driven delivery.

Technical Skills

Languages

TypeScript, JavaScript, Python, C++, SQL

Frontend

React, React Native, Expo, Vite, Astro, Next.js, Angular, Electron, Gatsby, Material UI, Single-SPA, microfrontends, Storybook, RxJS, Redux, MobX, Apollo Client, GraphQL

Backend

Node.js, NestJS, Express, Flask, REST APIs, GraphQL, OpenAPI, event-driven design

Databases

PostgreSQL, MongoDB, Firestore, Sequelize

Cloud and Multicloud

AWS, Azure, GCP, Pub/Sub, Cloudflare, CloudFront, Cloud Run, AKS, serverless and container workloads

Infrastructure as Code

Terraform, Docker, Docker Compose, Kubernetes

CI/CD and DevOps

GitHub Actions, CircleCI, automated testing gates, Secret Manager, Artifact Registry, deployment automation, EAS build and OTA pipelines

Testing

React Testing Library, Playwright, Vitest, Jest, Cypress

Architecture

Nx monorepos, microservices, progressive web apps (PWA), headless CMS, SAP integration, Auth0

Professional Experience

1. Self-employed — Full Stack Engineer

   Budapest, Hungary | November 2018 – Present

   • Delivered 13+ B2B subcontract engagements across Europe spanning product engineering, multicloud platforms, and CI/CD.
   • Build and ship own products end to end, including market research, product design, implementation, and alpha testing.
   • Own architecture, implementation, cloud infrastructure, and delivery pipelines for client and proprietary systems.

2. Full Stack Engineer (Own Product) — Powerlifting Tracker Coaching Platform (Armiger Lifts)

   Budapest, Hungary | April 2026 – Present

   Tech: React, Vite, TypeScript, Cloudflare, React Native, Expo, NestJS, Docker, GCP, Pub/Sub, REST, Astro, Terraform, Auth0, CircleCI, Nx

   • Full ownership of product development for a powerlifting tracker coaching platform across web, native mobile, backend, and marketing surfaces.
   • Conducted market research and product design, and organized an alpha testing phase.
   • Building the coaching progressive web app (PWA) with React, Vite, and TypeScript, hosted on Cloudflare.
   • Delivering a native mobile app with React Native, Expo, and TypeScript.
   • Implementing a microservice backend on GCP using NestJS, Docker, TypeScript, and REST APIs, with GCP Pub/Sub for asynchronous communication.
   • Governing cloud infrastructure with Terraform and authenticating users with Auth0.
   • Shipping the product hero/marketing site with Astro.
   • Delivering via an Nx monorepo with CircleCI for CI/CD.

3. Full Stack Engineer (B2B Subcontractor) — Web and Kiosk Application for 3D Printing

   Europe (Remote) | October 2025 – April 2026

   Tech: React, TypeScript, Terraform, AWS

   • Delivered a cross-channel product combining kiosk workflows with web-based administration.
   • Built maintainable frontend architecture with API integration and automated test coverage.
   • Implemented infrastructure automation to support continuous delivery.

4. Full Stack Engineer (B2B Subcontractor) — Art Event and Exhibition Application

   Basel, Switzerland | February 2024 – October 2025

   Tech: NestJS, TypeScript, Nx, Docker, Azure, AKS

   • Contributed to a production microservice platform for a major international art event.
   • Worked across backend and platform layers in an Nx monorepo.
   • Supported service integration, API reliability, and cloud deployment workflows.

5. Full Stack Engineer (B2B Subcontractor) — Mathematics Education Platform

   Berlin, Germany | February 2023 – December 2023

   Tech: React, TypeScript, RxJS, Cypress, Node.js, Flask, AWS

   • Contributed to a microfrontend-based educational product with reliable frontend integration and iterative delivery.
   • Supported backend and cloud-connected features while maintaining product quality and user experience.
   • Applied automated UI testing in a multi-service stack.

6. Frontend Engineer (B2B Subcontractor) — Dietary Supplement E-commerce Site

   Lausanne, Switzerland | May 2022 – July 2022

   Tech: React, Next.js, TypeScript, Sanity CMS, Storybook, Vercel

   • Developed customer-facing commerce flows for a B2C storefront with a headless content model.
   • Improved UI consistency and delivery speed using component-based development.
   • Shipped via a modern JAMstack deploy and CMS workflow.

7. Frontend Engineer (B2B Subcontractor) — Rail Logistics B2B Application

   Vienna, Austria | September 2021 – November 2022

   Tech: React, TypeScript, Material UI, microfrontends, Storybook

   • Delivered frontend capabilities in a modular enterprise environment with strong UX consistency requirements.
   • Implemented reusable UI patterns and component-driven development.
   • Applied microfrontend patterns for long-term maintainability.

8. Frontend Engineer (B2B Subcontractor) — Healthcare Webshop with Headless CMS

   Dublin, Ireland | February 2021 – November 2021

   Tech: React, Gatsby, TypeScript, GraphQL, Contentful, AWS CloudFront

   • Built and shipped frontend features for a healthcare webshop using a headless CMS workflow.
   • Focused on semantic UI quality, accessibility, SEO, and scalable content-driven page generation.

9. Architect and Team Lead — ERP Platform for Auto Glass Service Company

   Dublin, Ireland | January 2020 – November 2020

   Tech: React, NestJS, Apollo GraphQL, Azure, SAP, PWA

   • Led architecture and technical delivery for a business-critical ERP product serving B2B and B2C use cases.
   • Implemented frontend and backend capabilities on Azure.
   • Coordinated SAP integration and delivered a progressive web app experience.

10. Full Stack Engineer (B2B Subcontractor) — Adventure Search and Reservation Web App

    Dublin, Ireland | November 2019 – January 2020

    Tech: React, GraphQL, Node.js, MongoDB

    • Implemented full-stack search and reservation flows for a travel-style product.
    • Delivered frontend and GraphQL backend integration in a fast prototype-to-product timeline.

11. Full Stack Engineer (B2B Subcontractor) — CNC Machine Status Monitor (Industry 4.0)

    Munich, Germany | April 2019 – October 2019

    Tech: Angular, NgRx, Web API, MongoDB

    • Built monitoring-focused UI connected to REST-based backend services for manufacturing telemetry.
    • Delivered a reliable operator-facing status application.

12. Technical Consultant — ERP Estimation and Technical Consultancy

    Budapest, Hungary | February 2019 – March 2019

    Tech: ERP discovery, technical estimation

    • Delivered discovery and technical estimation for an ERP initiative.
    • Defined delivery scope, implementation complexity, and sequencing recommendations to reduce project risk.

13. Frontend Engineer (B2B Subcontractor) — Online Auction Web Application Prototype

    Budapest, Hungary | December 2018 – January 2019

    Tech: React, Redux, TypeScript

    • Built a working prototype to simulate auction processes and validate product assumptions quickly.
    • Covered frontend state handling for interactive bidding flows.

14. Full Stack Engineer (B2B Subcontractor) — Event Organiser Web Application

    Budapest, Hungary | November 2018 – December 2018

    Tech: React, Node.js, Express, Sequelize, OpenAPI

    • Implemented event operations features across frontend and backend layers.
    • Established API contracts and delivery structure for maintainable iteration.

15. Citi — Quantitative Developer

    Budapest, Hungary | August 2017 – October 2018

    • Developed software supporting quantitative and financial engineering workflows in a global banking environment.
    • Collaborated with stakeholders on reliable delivery within a regulated enterprise setting.

16. CAE — Software Developer

    Budapest, Hungary | July 2015 – August 2017

    Tech: React, Electron, Node.js, C++, Python

    • Developed and maintained software for aviation training and simulation-related systems.
    • Delivered application features in a structured enterprise development environment.