$ whoami

Martin Oputa

Full-Stack Engineer · Real-time & AI systems · Berlin

Full-Stack Engineer with 5+ years building high-performance React, TypeScript and Node.js architectures. I specialize in real-time, event-driven systems with Kafka, WebSockets and WebRTC; cutting database latency by 30% and shipping mission-critical geospatial and AI solutions.

view work →get in touch
Martin Oputa
Martin Oputa
Berlin, Germany · GMT+1
available for work
martin@berlin — zsh
martin@berlin:~$ cat stack.json
{
  "frontend": ["React","Next.js","TypeScript"],
  "backend":  ["Node","FastAPI","Postgres"],
  "realtime": ["WebRTC","Kafka","WebSockets"],
  "ai":      ["LangGraph","RAG","MCP"]
}
martin@berlin:~$
0+
Years shipping production
0%
Database latency reduced
0%
Fewer production bugs
0
EU Horizon 2020 projects
·JavaScript·TypeScript·React·Next.js·Node.js·Python·FastAPI·PostgreSQL·Kafka·WebRTC·WebSockets·Redis·Docker·AWS·GCP·Vercel·CI/CD·Git·GraphQL·Prisma·LangChain·LangGraph·MCP·RAG·Vector DB·GenAI·LLMOps
capabilities

Full-stack, end to end —
from database to interface to model.

01/05

Backend Development

Robust, scalable server-side systems & APIs with Node, Express, Nest.js, Python, FastAPI, GraphQL and PostgreSQL.

02/05

Frontend Development

Intuitive, responsive interfaces with clean, maintainable React, Next.js and TypeScript.

03/05

Cloud

Deploying and optimizing infrastructure on AWS, GCP and Vercel for reliability, speed and scale.

04/05

CI/CD

Automated build, test and deploy pipelines with GitHub Actions and Docker for fast, reliable delivery.

05/05

AI Engineering

Production-ready AI: LLMs, multi-agent pipelines, RAG, LangChain, LangGraph and MCP servers.

selected work

Featured projects

Production-grade AI, real-time & geospatial systems — click any project for more details.

personal projects
professional work
career

Work experience

Five years shipping production software across real-time, geospatial, and mission-critical systems.

Software Engineer · Full Stack

Astrial GmbH· Berlin, Germany

2023 — Present
ReactTypeScriptNode.jsPostgreSQLKafkaWebRTCWebSocketsGitLab
  • Developed real-time communication systems using React and WebRTC while collaborating with cross-functional teams, achieving low-latency video and chat for emergency response scenarios.
  • Implemented Kafka-backed event streams for real-time data flows, enhancing geolocation tracking, communication state updates, and event-driven architecture.
  • Took full ownership of an end-to-end drone operations platform from planning to deployment, using the DJI Cloud API and MQTT to integrate real-time telemetry with automated 3D mission planning and remote command execution.
  • Optimized database performance with Redis caching and Prisma ORM, reducing query latency by 30% for PostgreSQL services.
  • Contributed to architectural decisions, code reviews, and cross-functional planning, and delivered live technical and product demonstrations to EU stakeholders.
  • Worked as technology provider on EU Horizon 2020 projects including NIGHTINGALE, APPRAISE, SYNERGISE, and IFLOWS.

Software Engineer · Full Stack

Vub GmbH· Leipzig, Germany

2022 — 2023
Next.jsTypeScriptNode.jsPrismaJestCI/CDGitHub ActionsJira
  • Engineered internal tools and web apps using Next.js and TypeScript, integrating frontend clients with Java-based microservices.
  • Reduced production bugs by 25% within 6 months by implementing Jest testing suites with MSW and enforcing Clean Code / SOLID principles.
  • Mentored junior developers via code reviews and technical workshops on modern JavaScript architectures and Agile best practices.
  • Managed team priorities, deadlines, and deliverables using tools such as Jira to maintain strong Agile methodology and practice.

Software Engineer · Frontend

Posterlounge GmbH· Leipzig, Germany

2020 — 2022
JavaScriptjQueryReactMaterial UIUI / UX
  • Planned and executed the migration of legacy UI components (HTML with jQuery) to modern frontend frameworks (React), improving maintainability and consistency across the interface.
  • Created UI animations using CSS3 and JavaScript libraries such as Material UI and Bootstrap.
  • Translated designs and style guides provided by UI/UX into functional, pixel-accurate user interfaces.
toolbox

Skills & stack

JavaScriptTypeScriptReactNext.jsNode.jsPythonFastAPIPostgreSQLKafkaWebRTCWebSocketsRedisDockerAWSGCPVercelCI/CDGitGraphQLPrismaLangChainLangGraphMCPRAGVector DBGenAILLMOps
education

Education

2018 — 2020
M.Sc. Sustainable Business Development
University of Leipzig
2011 — 2015
B.Sc. Mathematics
University of Benin
writing

From the blog

all articles
LangChain · Artificial Intelligence

Building Agentic AI Into Your Product Using LangChain (Node.js Edition)

Learn to how to build agentic AI into your Node.js application using LangChain, Google Gemini, and a clean, production‑ready architecture.

read
Node.js · Event-Driven

What Does Event-Driven Mean in Node.js?

Event‑driven architecture is a style where program flow is determined by events like user actions, timers, & network responses.

read
Javascript · ES2020

Modern JS Features You Should Use

JavaScript has evolved massively over the past few years. With recent development in JS, you can now write cleaner, safer, and more expressive code.

read
API requests · Network

How Scale Giants Handle Millions of Requests

As your app grows, so does the need to efficiently manage incoming requests. We take a look at some popular NodeJs concepts use in managing large requests.

read
$ ./contact

Let's build something
worth shipping.

Open to full-stack & AI engineering roles. Based in Berlin, working across timezones.

martin@martinoputa.comgithublinkedin