As a Software Developer, you will contribute to the Decisioning and Offers platform by writing code, creating automated tests, debugging, and collaborating on system design.
TransUnion's Job Applicant Privacy Notice
What We'll Bring:
We focus on TDD, Microservices, Cloud Serverless Computing and automated pipelines to deliver high, quality continuous improvements to the platform. Our stack includes Node.js, PHP, MariaDB, DynamoDB, AWS Lambda, GitHub Actions, Terraform, as well as our internal programming language that powers our decisioning.What You'll Bring:
The team is responsible for the Decisioning and Offers platform, which is built around a powerful, scalable decisioning engine. We collaborate with major financial institutions to host or integrate with their decisioning and offers platforms, providing customers with accurate, personalized offers and making it as seamless as possible for them to access these products. Our platform leverages large datasets, including Credit Bureau data, machine learning models and other techniques to power our decision-making processes.
Impact You'll Make:
What You’ll Be Doing- Contribute to the development and maintenance of internal tools and services
- Write clean, reliable, and well-tested code using TDD
- Create and maintain automated tests to ensure code quality and system reliability
- Debug and fix issues in backend systems, often working directly with clients to understand the problem
- Collaborate with the team on architecture, design, and implementation
- Engage in code reviews and team discussions to grow your knowledge
- Work with clients to gather requirements and understand real-world use cases
- Take ownership of problems and follow them through to resolution
- Use our internal programming language and tools to integrate with external services, build datapoints, replicate calculations, and host machine learning models.
- Some experience coding in a backend language (e.g. Node.js, Python, Go, etc.)
- A basic understanding of testing practices and test automation
- Curiosity about system design, infrastructure, and automation
- Willingness to learn, ask questions, and improve
- Strong problem-solving mindset—you enjoy figuring things out
- Comfortable communicating clearly with teammates and clients
- Ability to manage multiple tasks at once, keep tickets updated and work with leadership to prioritize and continually deliver.
- Exposure to cloud platforms (e.g., AWS, GCP)
- Familiarity with CI/CD pipelines
- Experience with automated testing frameworks or writing tests as part of coursework or projects
- Understanding of working with large datasets and machine learning models.
TransUnion Job Title
Engineer II, Software DevelopmentTransUnion Denver, Colorado, USA Office
Denver, CO, United States
TransUnion Greenwood Village, Colorado, USA Office
6430 S Fiddlers Green Cir, Greenwood Village, CO, United States, 80111
Similar Jobs at TransUnion
Big Data • Fintech • Information Technology • Business Intelligence • Financial Services • Cybersecurity • Big Data Analytics
Responsible for developing and maintaining internal tools, writing clean code using TDD, and collaborating on architecture and design. Must communicate with clients to gather requirements and debug issues.
Top Skills:
Aws LambdaDynamoDBGithub ActionsMariadbNode.jsPHPTerraform
Big Data • Fintech • Information Technology • Business Intelligence • Financial Services • Cybersecurity • Big Data Analytics
Responsible for designing scalable backend systems, mentoring junior developers, collaborating with clients, and improving system performance and reliability.
Top Skills:
AWSDynamoDBGCPGithub ActionsMariadbNode.jsTerraform
Big Data • Fintech • Information Technology • Business Intelligence • Financial Services • Cybersecurity • Big Data Analytics
Responsible for developing and maintaining internal tools, writing clean code using TDD, and collaborating on architecture and design. Must communicate with clients to gather requirements and debug issues.
Top Skills:
Aws LambdaDynamoDBGithub ActionsMariadbNode.jsPHPTerraform
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute

