Full Stack .NET Developer (Belfast, Northern Ireland)

Job Title: Full Stack .NET Developer
Location: Belfast, Northern Ireland
Work Arrangement: Hybrid (In-Office)
We are seeking a Full Stack .NET Developer who can quickly adapt to our codebase and collaborate effectively with our team to create innovative solutions in a fast-paced environment. If you consider yourself a versatile programmer—a 'Swiss Army Knife' of development—ready to go beyond traditional software development roles, we want you to join our team! You will leverage your intelligence to contribute across all aspects of the SDLC, from architectural design and scoping to hands-on development and testing. We are looking for a proactive developer eager to tackle challenges and play a key role in our exciting fintech projects.
About Us: Recently ranked #259 on the Inc. 5000 fastest growing companies in the United States, 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. 
Primary Job Responsibilities:

• Design & build future-proof solutions to support growing business needs while thoroughly considering the system impact
• As part of a customer-focused team, seek understanding of and value in our customer’s requirements, and actively shape the product from an engineering standpoint
• 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

Essential Criteria:

• BSc or MSc in Computer Science / related qualification OR commercial experience of developing in C#, Java or other OO programming languages
• Minimum 2 years of hands-on experience programming on the .NET platform using C#, including ASP.NET (MVC)
• Knowledge of Design Patterns, refactoring, OO Design and related areas
• An understanding of database design and development
• Experience with HTML, JavaScript, CSS including jQuery
• Strong attention to detail and work ethic
• Analytical and problem-solving skills
• Excellent communication (both written and verbal) and interpersonal skills
• Previous experience working with source control tools (TFS, SVN, or GIT)
• Legal right to work in the UK

Desirable Criteria:

• Experience of cloud technologies such as Azure/AWS/GCP
• Experience in testing methodologies
• Exposure to building web services using Web API
• Knowledge of CI/CD systems and implementation practices
• Experience with front-end frameworks such as Bootstrap
• Knowledge of .NET Core and Entity framework 
• Experience in Financial services industry

What We Offer:

• 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

Our Mission: To provide an automated A/R platform that seamlessly integrates existing business processes for the SMB market.
Our Core Values:
Get Shit Done Right - We work hard and ensure tasks are completed correctly and on time, every time.
Own it - We are subject matter experts who know what we know, and we are confident enough to speak up when we see something wrong.
Catch Up - We are high performers and love a fast-paced environment.
Believe in the Genie - We are passionate about where we are going as a team, and we show we care.
Class Shines - We are articulate professionals who carry ourselves well and speak with purpose.
Please note we are unable to offer visa sponsorship.