Senior C# Developer

Clio is the global leader in legal AI technology, empowering legal professionals and law firms of every size to work smarter, faster, and more securely.

We are transforming the legal experience for all by bettering the lives of legal professionals while increasing access to justice.

You are an experienced engineer who enjoys solving complex problems and delivering high-quality software. You value collaboration, curiosity, and learning as much as coding. You understand the importance of clean code, maintainable architecture, and system performance, and you want to work in a culture where your contributions matter and your growth is supported.

• Developing full-stack features using C#, .NET, HTML, CSS, JavaScript, and SQL.
• Writing and optimizing hand-crafted SQL queries to ensure high performance.
• Designing and implementing event-driven workflows using Event Store.
• Enhancing search and data projections with Elastic Search.
• Modernizing components of the platform to .NET 8+ and Svelte.js, including containerized deployments.
• Automating infrastructure with Pulumi and Azure Dev Ops.
• Participating in architecture discussions, code reviews, and maintaining engineering best practices.

• Strong experience with C#/.NET, including async/await, memory management, and resource handling.
• Deep knowledge of SQL Server, including query optimization, indexing, execution plans, and performance tuning.
• Solid understanding of HTML5, CSS3, Flexbox, and CSS Grid.
• 5+ years of varied software engineering experience, ideally including scalable systems.
• Experience with distributed systems, monoliths, or microservices.
• Demonstrate a keen interest in improving your craft by using AI.

• Exposure to Elastic Search, Event Store, Neo4j, InfluxDB, Seq, Power BI.
• Experience with micro-ORMs such as Peta Poco.
• Contributions to open-source projects or personal coding projects.
• Cloud infrastructure experience, especially Azure.
• Strong grasp of clean code principles, OOP design, and software patterns.

The expected salary range for this role is £81,600 to £110,400 GBP. Initial placement within the range is informed by geographic region, experience, and skillset, with room to progress as impact and tenure grow. Final offer amounts will vary based on candidate profile.

• Competitive, equitable salary
• Clio offers a flexible hybrid work environment
• 25 days holiday + bank holidays
• Private Healthcare with Life Insurance & Critical Illness cover
• Pension contribution
• Professional development and growth options
• Clioversary recognition program with special acknowledgement at 3, 5, 7, and 10 years

Our team shows up as their authentic selves, and are united by our mission. We are dedicated to diversity, equity and inclusion. We pride ourselves in building and fostering an environment where our teams feel included, valued, and enabled to do the best work of their careers, wherever they choose to log in from. We believe that different perspectives, skills, backgrounds, and experiences result in higher-performing teams and better innovation.

We are committed to equal employment and we encourage candidates from all backgrounds to apply.

Clio provides accessibility accommodations during the recruitment process. Should you require any accommodation, please let us know and we will work with you to meet your needs.

Learn more about our culture at

We're a Human and High Performing AI company, meaning we use artificial intelligence to improve all of our operations. In recruitment, AI helps us streamline the process for greater efficiency. However, we've built our systems to ensure that a human always reviews AI-generated output, and we never make automated hiring decisions.

Disclaimer:
We only communicate with candidates through official  email addresses.