Unnamalai Ramanathan

Full Stack Developer | Backend Expertise | Lead QA Engineer

My Work
Learning Portal

An online learning portal built using Angular and Node.js with NestJS together with MongoDB, hosted and managed in Google Cloud Platform. The application allows individual learning sessions to be scheduled, chat feature, lesson evaluation and more.

Meet App

A serverless, progressive web application (PWA) built with React using a test-driven development (TDD) technique. The application uses the Google Calendar API to fetch the upcoming events based on city and also uses AWS Lambda for deploying serverless functions.

Movie App

A complete full-stack web application that will provide users with access to information about different movies, directors and genres. Users will be able to sign-up, update their personal information and create a list of their favorite movies.

Pokedex App

A small web application built using HTML, CSS and JavaScript that loads data from an external public API and enables the viewing of data points in detail.

Chat App

A chat app for mobile devices built using React Native. The app will provide users with a chat interface and options to share images and their location.

Target Pointer App

A hobby project built using HTML, CSS and Javascript to understand/track mouse clicks. The concept of this game is to help Tom catch Jerry with different levels.

ME

About Me

Senior Software Engineer with 12+ years of experience building and modernizing enterprise applications across legacy and cloud environments. Strong backend focus with 4+ years of hands-on Node.js with NestJS experience, delivering reliable REST APIs, data migrations, and automated workflows supported by testing and CI/CD.

Background includes extensive work with IBM/HCL Notes & Domino systems, full-stack experience with Angular, React, and Next.js, and a proven ability to evolve complex, customer-facing systems. Known for a structured, independent working style and a strong focus on clean architecture, quality, and maintainability.

Technical Skills

TypeScript
Node.js
NestJS
REST APIs
Java Basic
Angular
Next.js
React
MongoDB
PostgreSQL Basic
Lotus Notes/Domino
Jest
Cypress
CI/CD
Docker
Git

Achievements & Certifications

Achievements

Core Engineering

Designed and implemented new product features aligned with design specs, ensuring high code quality and scalability.

Executed system and data migrations, maintaining seamless data flow and platform stability.

2022-present 2006-2015

Ops & Leadership

Mentored new team members and managed cross-team communication via proactive support ticket resolution.

Diagnosed production issues through cloud log analysis for long-term fixes.

2022-present

Quality & Automation

Established E2E automated testing via Cypress, significantly improving release confidence.

Integrated JIRA X-Ray to enhance documentation and test result traceability.

2023-present

Data & Analytics

Automated a scalable data pipeline for multiple APIs and authored a comprehensive teacher shortage report using RStudio.

Developed interactive dashboards using MongoDB Charts for investor-focused insights.

2023-present

Recognition & Certifications

Upskilling Certification

Full Stack Immersion

Career Foundry, Berlin 2022

Professional Certification

IBM Certified Associate Application Developer - Lotus Notes Domino 8

IBM 2013

Quality Assurance Champion

Awarded for quality delivery

Applied Materials (Mahindra Satyam) 2009

Outstanding Performance Award

Certificate of Recognition for showing strong analytical and technical skills

Mahindra Satyam 2007

"Unna ist eine außergewöhnliche Entwicklerin – ein echter Diamant, den ich nur ungern aus wirtschaftlichen Gründen gehen lassen musste. Ihre Auffassungsgabe ist beeindruckend, und wir haben ihr die anspruchsvollsten Backend-Entwicklungsaufgaben sowie hochkomplexe, businesskritische Datenabfragen anvertraut. Auf sie war jederzeit zu 100 % Verlass. Ihre Arbeitsethik ist außerordentlich hoch, und sie war stets eine zentrale Leistungsträgerin unseres Teams. Besonders beeindruckt haben mich ihre achtsame und gewissenhafte Herangehensweise, ihre analytische und strukturierte Arbeitsweise sowie ihre außergewöhnlichen kommunikativen Fähigkeiten. Ihr Englisch ist hervorragend – klar, präzise und jederzeit problemlos verständlich. Auch ihr Deutsch ist ausgezeichnet. Die Zusammenarbeit mit ihr war eine große Freude. Wer künftig mit ihr arbeiten darf, wird dies sowohl fachlich als auch menschlich sehr zu schätzen wissen. Ich wünsche Unna für ihren weiteren Weg alles Gute und viel Erfolg und blicke auf unsere gemeinsame Zeit mit großer Wertschätzung zurück."

"Unna is awesome as Backend Developer and brings a lot of structure and analytical knowlegde into our team. I had the chance to work with her more than 3 years and every day was a pleasure and inspiring. She also asks the right questions and identifies conceptual gaps or data issues before they happen. What I admire most is that Unna does not give up on difficult topics, instead she moves forward with passion and energy and helps everyone to improve and shares her solutions."

"I am very pleased to recommend Unna. During my three-month internship, she was responsible for my onboarding. Despite having a very busy workload, she was always patient and structured in her guidance, helping me quickly get up to speed on a complex platform with intricate business logic. Her mentoring style was clear and effective, allowing me to develop a solid understanding of the system as well as the testing processes in a short period of time. From a technical perspective, she left a very strong impression on me. She has a solid technical foundation, and having her on the team consistently brought a strong sense of reliability and confidence. She delivered tasks on time—or often ahead of schedule—while maintaining an exceptionally high standard of quality. As a tester, I often found that the features she developed were extremely robust and difficult to break. Moreover, she is highly analytical and quick to identify root causes when issues arise, proposing practical and high-quality solutions. In terms of teamwork, she is also an incredibly dependable and supportive colleague. Whether facing technical challenges or process-related obstacles, she is always willing to step in and help move the team forward. She is polite, and a genuine pleasure to work with, which makes collaboration both smooth and enjoyable. I can confidently recommend her. Any team or organization would be fortunate to have her, and I am certain that her presence would significantly accelerate development progress while maintaining a high bar for delivery quality. To me, she is like a powerful engine—consistently and reliably driving the team forward."

Contact

Location

Dresden, Germany