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Hildesheim, Germany · Open to Werkstudent opportunities

Gavin Romaldo Da Costa

Software Developer & MSc Software Engineering Student

Software developer with professional experience building enterprise applications, APIs, integrations, and full-stack web applications. Currently pursuing an MSc in Software Engineering in Germany.

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Portrait of Gavin Romaldo Da Costa

About

About me

I am a software developer with professional experience in an enterprise travel technology product, where I worked across .NET Core APIs, an Angular front end and a large SQL Server database. Most of that work involved integrating with external systems, implementing booking and pricing workflows, and maintaining code that had to keep running for existing customers.

That work shaped how I approach software: understanding the domain before writing code, reading an existing codebase carefully, and preferring changes that stay consistent with the architecture around them. Alongside enterprise work I build full-stack applications with Angular, React, Spring Boot and Node.js, and I am comfortable designing the relational data model behind them.

I am now pursuing an MSc in Software Engineering at the University of Hildesheim in Germany, and I am looking for Werkstudent roles where I can keep working on well-engineered, scalable software while I study.

Focus
Backend & full-stack development
Experience
Enterprise applications, APIs, integrations
Currently
MSc Software Engineering, Hildesheim

Languages

  • EnglishProfessional working proficiency
  • KonkaniNative
  • HindiConversational
  • GermanA1 — beginner, currently learning

Experience

Professional experience

Progression from intern to Software Developer at Open Destinations, an enterprise travel technology company, plus an earlier full-stack web development internship.

  1. Software Developer

    Dec 2025 – Sep 2026

    Open Destinations Infotech Pvt. Ltd. · Panaji, India

    Enterprise travel technology platform — external system integrations and background services.

    • Contributed to large-scale external system integrations supporting booking and service workflows.
    • Worked with technical architects to analyse and implement complex booking workflows.
    • Implemented change requests covering pricing consistency, shared library/DLL integration and component reuse.
    • Contributed to background Windows services that process notifications from external systems.
    • Worked on request/response handling, logging and authentication token refresh mechanisms.
    • C#
    • .NET
    • SQL Server
    • System integration

  2. Junior Software Developer

    Jun 2025 – Dec 2025

    Open Destinations Infotech Pvt. Ltd. · Panaji, India

    Full-stack change requests across an Angular front end, .NET Core APIs and a legacy SQL Server codebase.

    • Worked on complex SQL Server stored procedures and user-defined functions in a legacy enterprise codebase.
    • Implemented change requests involving the Angular front end and .NET Core APIs.
    • Worked with LINQ-based repositories and API development.
    • Participated in code reviews and technical demonstrations.
    • Reviewed functional specifications with Business Analysts and Implementation Consultants.
    • Angular
    • .NET Core
    • LINQ
    • SQL Server

  3. Software Developer Intern

    Jan 2025 – Jun 2025

    Open Destinations Infotech Pvt. Ltd. · Panaji, India

    Training on enterprise application design, followed by hands-on work in a production codebase.

    • Learned 3-tier architecture and large-scale application design.
    • Developed a 3-tier e-commerce web application.
    • Debugged stored procedures and application workflows.
    • Assisted with debugging issues in a large-scale enterprise web application.
    • ASP.NET
    • C#
    • SQL Server

  4. Web Developer Intern

    Jul 2024 – Aug 2024

    Stanza Infotech Pvt. Ltd. · Goa, India

    Built a placement management platform for Don Bosco College of Engineering.

    • Developed a Placement Management System used by students and the Training & Placement Officer.
    • Built full-stack functionality using PHP, MySQL, HTML and CSS.
    • Implemented role-based dashboards and responsive interfaces.
    • PHP
    • MySQL
    • HTML
    • CSS

Education

Education

In progress

MSc Software Engineering

University of Hildesheim · Hildesheim, Germany

2026 – 2028

Graduate study in software engineering, with a focus on designing, building and maintaining large software systems.

Final grade 9.10 / 10

BE Computer Engineering (Honours)

Don Bosco College of Engineering · Goa, India

2021 – 2025

Core computer science foundations: data structures and algorithms, database systems, operating systems, web technologies and software engineering.

Skills

Technical skills

Technologies I have used in professional work, university projects, or both.

Languages

  • Java
  • C#
  • JavaScript
  • TypeScript
  • Python
  • PHP
  • SQL

Backend

  • Spring Boot
  • .NET Core
  • Node.js
  • Express
  • REST APIs

Frontend

  • Angular
  • React
  • HTML
  • CSS
  • Bootstrap
  • Tailwind CSS

Databases

  • MySQL
  • SQL Server
  • PostgreSQL

Tools

  • Git
  • SVN
  • Postman

Engineering Concepts

  • Object-Oriented Programming
  • 3-Tier Architecture
  • System Integration
  • Database Design
  • API Development

Projects

Selected projects

Full-stack applications built for real stakeholders — a company client and my college's placement office.

Study Abroad CRM

Final year project

Built for Bodhami Pvt. Ltd.

Counsellors tracked student applications across scattered spreadsheets and inboxes, which made the status of any single application hard to establish. The CRM centralises that data in one system.

Key functionality

  • Student profile management and application tracking
  • Role-based access control for counsellors and administrators
  • Centralised data management across the application lifecycle
  • Angular
  • Spring Boot
  • MySQL

Placement Management System

Internship project

Built for Don Bosco College of Engineering

Job postings and student applications were handled manually by the Training & Placement Officer. The platform moves postings, applications and notifications into a single role-based system.

Key functionality

  • Job postings, student applications and notifications
  • Separate dashboards for students and the Training & Placement Officer
  • Responsive interface backed by a relational data model
  • PHP
  • MySQL
  • HTML
  • CSS

More of my code is on github.com/gavin9307.

Currently looking for

Werkstudent Software Engineering opportunities in Germany

Particularly remote roles and opportunities around Hildesheim and Hannover, alongside my MSc in Software Engineering. Backend, full-stack and web development are all a good fit.

Get in touchDownload CV

Roles of interest

  • Werkstudent Software Engineer
  • Werkstudent Software Developer
  • Working Student Backend / Full Stack
  • Working Student Web Development
  • Software Engineering internships

Contact

Get in touch

The fastest way to reach me is email. I am happy to talk about Werkstudent roles, internships or anything in the work above.