Senior Full Stack .NET Developer (Belfast, NI)
Biller GenieBelfast, Northern Ireland, United Kingdom
Posted December 16, 2025
Full Time
About the Company
Ranked #259 on the Inc. 5000 fastest growing companies in the United States, in 2023, and sustaining that with #482 in 2024. Biller Genie is an award-winning B2B SaaS platform that is entering the Belfast market with ambitious plans to scale our team rapidly, with over 100 hires planned through 2026.
Job Description
We are looking for a Senior Full-Stack.NET Developer who can quickly understand our existing codebase and significantly contribute to the development of complex, innovative solutions in our fast-paced fintech environment. As a key member of our production team, you will take ownership of significant features, driving them from conception to deployment.
Requirements
- Design & build future-proof solutions to support growing business needs while thoroughly considering the system impact
- Work closely with our senior engineers to develop solutions from idea to implementation by estimating, planning, tracking and managing progress, risks, and dependencies.
- Gather and refine requirements, and release software in a timely fashion
- Be adaptive and strike a good balance between speed and efficiency
- Work with our technical support team to identify, reproduce, and remediate bug tickets
- Perform other duties required by Management
Benefits
- Private health insurance
- Group life death benefit
- Auto-enrollment pension with employer contributions matched to 5%
- 25 days holiday per year
- 10 statutory/bank holidays per year
- Opportunities for professional growth and development
- A collaborative and innovative work environment
