Available for contracts in Ireland

Manoj
Kumar

Senior Java Developer & Technical Lead

15+ years designing and delivering high-performance, globally distributed enterprise systems across financial services, telecommunications, and e-learning. Deep in microservices, Kafka, and cloud-native platforms.

MK

The engineer
behind the code.

I'm a Senior Java Engineer and Technical Lead with over 15 years of experience building transaction-intensive systems that need to stay alive under pressure. My work spans financial services, telco infrastructure, OTT platforms, capital markets, and e-learning, including large-scale cloud migrations, with a consistent focus on performance, security, and maintainability. Outside of client work, I build open-source tools in areas I find genuinely interesting: security automation, AI integration, and frontend language design.

Career highlights: Reduced codebase size by 50%  ·  Cut security vulnerabilities by 90%  ·  Migrated 200M+ database records with zero downtime  ·  Vibe-code open-source tools based on personal pain points
// skills
Languages & Frameworks
Java 8–17 Python Spring Boot Spring Framework REST APIs Microservices Kafka
Cloud & DevOps
Azure Functions AWS Docker Kubernetes Helm Jenkins SonarQube
Databases
Oracle MySQL PostgreSQL AWS Aurora NDB Cluster SQL Server
Security & Testing
DevSecOps Trivy Grype Kubescape Gitleaks Semgrep JUnit Karate
Fidelity Investments Nov 2024 – Present
Senior Software Engineer (Contractor)
Ericsson Oct 2022 – Oct 2024
Senior Software Engineer
Velocix Solutions Sep 2021 – Oct 2022
Product Development Manager
Equiniti India Nov 2016 – Sep 2021
Software Development Team Leader
LNT Infotech Jul 2015 – Oct 2016
Senior Software Engineer
Cognizant Technology Solutions Jun 2010 – Jul 2015
Associate Software Engineer

Things I've built.

🛡️
Laria

Security orchestration platform integrating 10+ scanning tools — Trivy, Gitleaks, Semgrep, Kubescape — into a unified CI/CD pipeline with SBOM generation.

Java Spring Kubernetes DevSecOps
🤖
Boox

Full-stack local AI chatbot with Spring Boot, React, and Ollama. Real-time SSE streaming and an extensible tool-calling framework with DuckDuckGo web search — no cloud required.

Spring Boot React Ollama AI
Tela

A declarative single-file component language published to npm that compiles to vanilla JS/CSS with zero dependencies. Includes a Maven plugin for Spring Boot integration.

Node.js Parser Compiler npm
🔤
figlet-svg

Text-in, ASCII-art-SVG-out badge API. Same one-job-done-well idea as shields.io and placehold.co — no signup, no dashboard, just a URL.

Vercel Node.js SVG API

Things I've written.

The Three Categories of AI Engineering, Revisited

Using AI to build software, building software that uses AI, building AI itself. Revisiting the three categories after watching them shift under real production use.

medium.com/@manojisnow
How I Got CloudKit Sharing Right by Not Touching My Real App

New to Swift, four weeks into an app, no CloudKit experience. Why I built a throwaway PoC first — and every gotcha it saved me from.

medium.com/@manojisnow
Your Full Stack AI App With Zero API Costs Is Here. Apple Just Showed Us How

On-device inference, private data, no billing account. Why Apple's stack is more ready than most developers think.

medium.com/@manojisnow
Three Types of AI Work in Software Development

Beyond autocomplete and chat. The type of AI work most developers overlook — and why it matters more than the other two.

medium.com/@manojisnow
I Stress-Tested a Few AI Coding Tools Building One App

A Java developer learning Swift, using every AI coding tool available. What actually worked, what didn't, and what the quota walls feel like.

medium.com/@manojisnow
The Email That Ruined My New Year (And What I Did About It)

A data exposure notification on January 1st — and the security scanner I built because of it.

medium.com/@manojisnow
Why I Built My Own Security Scanner (And Why You Might Need It)

Solving the local security gap for developers who want to ship code, not configure pipelines.

medium.com/@manojisnow
More on Medium ↗
// get in touch

Let's work together.

I'm open to contract and consulting opportunities in Ireland. If you've got an interesting problem, I'd like to hear about it.

✉ Email me LinkedIn ↗
Open to contracts in Ireland