.NET Developer

We are looking for a talented software .NET developer with extensive experience in .NET/C# to join our team. In this role, you’ll design, develop, and maintain our Definely products—from rich WPF-based desktop applications to resilient backend services. This is an opportunity to lead by example, mentor junior team members, and drive the technical excellence that defines our suite of products.

Send your CV, portfolio and a short covering letter to careers@definely.com

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Key Responsibilities

Application Development

• Architect, design, and implement rich desktop applications using WPF.
• Leverage modern UI design principles and patterns (such as MVVM) to ensure clean, maintainable, and scalable code.
• Build and maintain robust backend services, APIs, and libraries using .NET/C#.
  

Technical Leadership & Collaboration

• Participate in design and code reviews to ensure high-quality, maintainable solutions.
• Collaborate closely with product managers, designers, and other engineers to align on requirements and deliver innovative features.
• Provide technical mentorship and guidance to less experienced developers.
  

Quality & Best Practices

• Write clean, well-documented code accompanied by unit and integration tests.
• Continuously improve application performance, scalability, and security.
• Advocate for and implement best practices and modern software development methodologies (e.g., Agile/Scrum).
  

Problem Solving & Innovation

• Troubleshoot and resolve complex technical issues as they arise.
• Contribute to architectural discussions and help drive the evolution of our technology stack.

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• 5+ years of professional software development with a focus on .NET/C#.
• Proven track record in building WPF desktop applications with a keen eye for design and usability.
• Solid experience designing and implementing backend services.
• Proficiency with both .NET Framework and .NET Core.
• Strong understanding of object-oriented design, design patterns, and SOLID principles.
• Deep expertise in WPF, including XAML, data binding, custom controls, and UI animations.
• Comprehensive knowledge of UI/UX design principles and best practices, ensuring that applications are both functional and visually appealing.
• Experience working with relational databases (e.g., PostgreSQL).
• Familiarity with RESTful API design and integration.
• Excellent problem-solving abilities and attention to detail.
• Strong communication and collaboration skills.
• Ability to work effectively in a fast-paced, agile environment.
• Experience building VSTO Word Add-On is a plus.
• Experience with cloud platforms such as AWS and Azure.
• Knowledge of CI/CD pipelines and DevOps best practices.
• Familiarity with additional front-end technologies or modern UI frameworks.
• Prior experience in a product-focused or startup environment is a plus.

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At Definely, we’re on a mission to simplify the way legal professionals access and understand complex information in legal documents. Trusted by a global community of customers, our LegalTech solutions integrate seamlessly into lawyers' daily workflows, making it easier to draft, review and navigate even the most complex contracts. 

Our products provide instant access to essential information, enabling legal teams to review clauses and provisions in context, reduce risk and work more efficiently – all without disrupting their flow. At Definely, we’re dedicated to solving real challenges faced by legal professionals. 

Joining Definely means becoming part of a forward-thinking, collaborative team that prioritises innovation and people. We create a supportive environment driven by a shared commitment to connection, growth and success. 

Recognised in the top 25 of Deloitte's prestigious UK Technology Fast50 in 2023 and backed by Microsoft, Google and Octopus Ventures, we’re trusted by leading law firms and in-house legal teams, including A&O Shearman, Dentons, Deloitte, and Barclays, to streamline their workflows and mitigate risks.