AI-Enabled .NET Full-Stack Engineer (Hybrid)

Biller Genie; Belfast City District; Hybrid; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Private health insurance

Group life death benefit

Auto-enrollment pension with employer

25 days holiday per year

10 statutory/bank holidays per year

Opportunities for professional growth

Collaborative and innovative work env

Job summary

Biller Genie is seeking an experienced AI-enabled .NET full-stack engineer to join our Belfast team. You will quickly understand our codebase and drive complex fintech features from conception to deployment in a hybrid setup.

As a key member of the engineering team, you will own significant features, collaborate with senior engineers, and help shape the AI-powered developer experience by embedding AI tooling throughout our platform.

Qualifications

• BSc or MSc in Computer Science / related qualification OR commercial experience of developing in C#, Java or other OO programming languages.
• Minimum 5years of hands-on commercial experience programming on the .NET platform using C#, including ASP.NET (MVC).
• Experience with Design Patterns, refactoring, OODesign and related areas.
• Practicalhands-onexperience with AIcoding assistantsand agentic engineeringworkflows, and a genuine appetite to work primarily through agents — owning architecture, review, and quality rather than typing every line
• Exposure to building web services using Web API
• An understanding of database design and development
• Hands-on experience with HTML, JavaScript, CSS including jQuery
• Strong attention to detail and work ethic
• Strong analytical and problem-solving skills
• Excellent communication (both written and verbal) and interpersonal skills
• Experience of cloud technologies such as Azure/AWS/GCP
• Previousexperience working with source control tools (TFS, SVN, or GIT)
• Legal right to work in the UK

Responsibilities

• 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,trackingand managing progress, risks, and dependencies.
• Gather and refine requirements, and release software ina timelyfashion
• Be adaptive and strike a good balance between speed and efficiency
• Work with our technical support team toidentify, reproduce, and remediate bug tickets
• Build and deliver features through agentic tooling — designing, iterating on, and improving our custom skills, agents, and harnesses as part of the work
• Contribute prompts, skills, and workflow improvements back to the team so our AI-enabled developer experience compounds
• Perform other duties required by Management

Skills

C#

ASP.NET

OO design

Java

Design Patterns

HTML/JS/CSS

SQL/Database design

Cloud (Azure/AWS/GCP)

Git

Web API

Education

BSc or MSc in Computer Science

Tools

Git

Azure Functions

Queues

Job description

Biller Genie is seeking an experienced AI-enabled .NET full-stack engineer to join our Belfast team. You will quickly understand our codebase and drive complex fintech features from conception to deployment in a hybrid setup.

As a key member of the engineering team, you will own significant features, collaborate with senior engineers, and help shape the AI-powered developer experience by embedding AI tooling throughout our platform.