Intermediate/Senior Full Stack Developer (AI - Focused)

The Division: 

Jonas Event Technology (JET) provides registration, lead capture, and event technology solutions to the global events industry. We are part of the Jonas Software / Constellation Software family. 

The Role 

We are looking for an Intermediate/Senior Full Stack Developer (AI - Focused) to join our product development team. This is a hands-on technical role requiring strong full-stack development skills and a forward-thinking approach to AI-augmented software development. You will work closely with our UK-based technical leadership to evolve our product suite — building new features, improving architecture, and integrating AI capabilities into our platform. The successful hire will work from the Contour Software Islamabad office as part of the resource-center team that is an extension of the division-based R&D department. 

Key Responsibilities 

• Full-stack development across our web applications, APIs, and database layer 

• Design and implement new features aligned with product roadmap 

• Analyse business requirements and translate them into technical solutions 

• Integrate AI/ML capabilities into existing and new products 

• Maintain and improve code quality, test coverage, and documentation 

• Collaborate with cross-functional teams including product, sales, and support 

• Mentor and support junior developers 

Required Skills & Experience 

Technical (Must Have) 

• Backend: Strong experience with C#, .NET / .NET Core, ASP.NET 

• Frontend: Proficiency in modern JavaScript/TypeScript frameworks (Vue.js, React, or Angular) 

• Database: Solid SQL Server experience — query optimisation, schema design, stored procedures 

• APIs: RESTful API design and implementation; experience consuming and building integrations 

• Version Control: Git (GitHub or Azure DevOps) 

• Testing: Unit testing, integration testing (MSTest, xUnit, NSubstitute or similar) 

Technical (Highly Desirable) 

• AI & Machine Learning: Practical understanding of AI orchestration — LLMs, prompt engineering, embeddings, RAG patterns, agent architectures 

• Cloud: Azure or AWS experience (deployment, serverless, Azure SQL) 

• Mobile: React Native or similar cross-platform frameworks 

• DevOps: CI/CD pipelines, containerisation (Docker) 

• Legacy Systems: Experience working with and modernising VB.NET / WinForms codebases 

Analytical & Problem-Solving 

• Demonstrated ability to understand complex business domains and create effective technical solutions 

• Experience breaking down ambiguous requirements into structured, deliverable work 

• Track record of identifying and resolving architectural issues or technical debt 

Soft Skills 

• Clear written and verbal communication in English 

• Self-motivated and able to work independently in a remote setting 

• Proactive — flags issues early, suggests improvements, doesn’t wait to be told 

• Committed and reliable — this is a senior role requiring a serious mindset 

Experience Level 

• Minimum 5 years of professional software development experience 

• Demonstrated progression into senior or lead roles 

• Experience working in distributed/remote teams is a plus 

What Success Looks Like