Senior Software Developer

Building reliable, data-driven systems

Specializing in backend APIs (Java/Spring Boot), SQL databases, and web applications (React/PWA). Currently building financial technology solutions at Nasdaq.

10+ years SQL

Java REST APIs

React/PWA

Cloud Infrastructure

About Me

Utsav Ashish Koju - Senior Software Developer
10+
Years Experience
100+
Projects Delivered

Senior Software Developer specializing in scalable financial systems

I’m a Senior Software Developer based in Calgary, Alberta, currently working at Nasdaq where I build robust, scalable systems for financial technology. With over a decade of experience in backend development, I specialize in creating reliable APIs, optimizing database performance, and architecting data-driven solutions.

My expertise spans the full stack—from designing RESTful APIs with Java and Spring Boot to building responsive web applications with React and Next.js. I’m passionate about writing clean, maintainable code and solving complex technical challenges that drive business value.

Whether it’s optimizing SQL queries for massive datasets, ensuring system reliability through comprehensive testing, or collaborating with product teams to deliver user-focused features—I thrive on building software that makes a real impact.

Skills & Technologies

Backend

  • Java & Spring Boot
  • RESTful APIs
  • Microservices
  • Node.js & Express
  • PHP
  • Python

Data

  • SQL (10+ years)
  • PostgreSQL
  • MySQL
  • MS SQL Server
  • Database Design
  • Query Optimization

Frontend

  • React & Next.js
  • JavaScript/TypeScript
  • Progressive Web Apps
  • HTML5 & CSS3
  • Responsive Design
  • Redux

Tools & More

  • Git & GitHub
  • Docker
  • AWS & Cloud
  • Postman
  • Jira & Agile
  • CI/CD Pipelines

Career Journey

2020 – Present

Senior Software Developer

Nasdaq (formerly Verafin)

St. John’s, NL → Calgary, AB

  • Architected scalable backend services for financial compliance systems
  • Developed fraud detection solutions using Java, SQL, and Spring Boot
  • Optimized database queries resulting in 40% performance improvement
  • Led RESTful API development ensuring high availability for enterprise clients
2020
2019 – 2023

Software Developer

PSI International Consultant

International Projects

  • Delivered enterprise solutions for international clients across multiple domains
  • Built scalable web applications using modern frameworks and best practices
  • Collaborated with distributed teams on complex software projects
2019
2012 – 2018

Full Stack Developer

PSI Nepal

Nepal

  • Built web applications and mobile solutions using PHP, Java, JavaScript, and SQL
  • Designed and implemented database schemas with performance optimization
  • Delivered responsive, user-focused interfaces with modern frameworks
2012
Start

Let’s Work Together

Open to full-time opportunities, contract work, and consulting projects

What I Can Help With

  • Backend API development (Java/Spring Boot)
  • Database design and optimization
  • Full-stack web application development
  • System architecture and scalability
  • Code review and technical consulting
  • Legacy system modernization

Direct Contact

📧 utsavkoju@gmail.com

📍 Calgary, AB, Canada

🔗 LinkedIn | GitHub

Send a Message