Senior C# Developer

Sliced Bread Ltd.; Manchester; Hybrid; GBP 82,000 - 110,000; Full time

Benefits offered by this job

Hybrid work environment

Competitive compensation

Private healthcare & life insurance

Professional development

Job summary

Clio is hiring an experienced software engineer to build scalable legal AI platform features using C#/.NET, HTML/CSS/JS, and SQL. You will optimize SQL performance, design event-driven workflows with Event Store, and enhance search with ElasticSearch.

The role includes modernizing components to .NET8+ and Svelte.js, containerization, and infrastructure automation with Pulumi and Azure DevOps. You will contribute to architecture discussions, code reviews, and uphold engineering best practices,

Qualifications

• 5+ years of varied software engineering experience, preferably with scalable systems.
• Strong C#/.NET background including async programming and memory management.
• Deep SQL Server knowledge with query optimization and indexing.
• Solid frontend basics: HTML5, CSS3, Flexbox, CSS Grid.
• Experience with distributed architectures: monoliths or microservices.
• Interest in applying AI to improve engineering practices.

Responsibilities

• Develop full-stack features using C#, .NET, HTML, CSS, JS, and SQL.
• Write and optimize hand-crafted SQL queries for performance.
• Design and implement event-driven workflows with Event Store.
• Enhance search and data projections with ElasticSearch.
• Modernize platform components to .NET8+ and Svelte.js, including containers.
• Automate infrastructure with Pulumi and Azure DevOps.
• Participate in architecture reviews, code reviews, and promote best practices.

Skills

C#/.NET proficiency

SQL Server optimization

Web tech (HTML/CSS/JS)

Distributed systems

Async/await and memory mgmt

AI awareness in coding

Tech architecture & patterns

ElasticSearch exposure

Event Store experience

PetaPoco or micro-ORMs

Azure cloud experience

Tools

ElasticSearch

Event Store

Neo4j

InfluxDB

Seq

PowerBI

PetaPoco

Azure

Job description

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.

Summary: Who you are:

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.

What you’ll work on:

• 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 ElasticSearch.
• Modernizing components of the platform to .NET8+ and Svelte.js, including containerized deployments.
• Automating infrastructure with Pulumi and Azure DevOps.
• Participating in architecture discussions, code reviews, and maintaining engineering best practices.

What you may have:

• 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.
• Serious bonus points if you have:
  • Exposure to ElasticSearch, Event Store, Neo4j, InfluxDB, Seq, PowerBI.
  • Experience with micro‑ORMs such as PetaPoco.
  • 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.

What you will find here:

Compensation is one of the main components of Clio’s Total Rewards Program. We have developed a series of programs and processes to ensure we are creating fair and competitive pay practices that form the foundation of our human and high‑performing culture.

Some highlights of our Total Rewards program include:

• 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

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.

Diversity, Inclusion, Belonging and Equity (DIBE) & Accessibility

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 clio.com/careers.

We’re a Human and High Performing AI company

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.

About Clio

Clio is on a mission to transform the legal experience for all. Clio is the global leader in legal AI, building the platform that powers the future of legal work. With the scale, data, and ambition to redefine how the legal industry operates, we are advancing a comprehensive strategy that spans the full lifecycle of legal work—from knowledge and insight to execution and outcomes. At the center of this vision is the Intelligent Legal Work Platform, the legal industry’s first System of Action. By combining Clio’s core product suite with Clio Work and AI‑native capabilities, the platform turns information into insight and insight into action. As we expand into the enterprise, Clio for Enterprise extends this foundation to support the complexity, scale, and operational rigor of global organizations through solutions like Clio Operate and Vincent by Clio. Backed by industry‑leading data and intelligence, Clio is building the infrastructure that enables legal teams to operate with greater speed, confidence, and impact. Clio’s leadership and momentum have been recognized globally. In 2022, we achieved Centaur status, a milestone reached by fewer than 200 private SaaS companies worldwide. We are a proud honoree of the Forbes Cloud 100 and Fortune’s Future 50, have been named Innovator of the Year, and are a Platinum Club member of Canada’s Best Managed Companies. We are consistently recognized as one of Canada’s Top 100 Employers and a Top Employer for Young People, with our international offices also earning placements on Great Place to Work’s Best Workplaces lists.

Headquartered in Vancouver, Canada, Clio has grown to more than 2,000 employees across offices in Toronto, Calgary, Dublin, Manchester, Sydney, Barcelona, and Bogotá—bringing together diverse perspectives to solve one of the world’s most complex and impactful professional challenges.

Join Clio and help define the future of legal work through AI. Learn more at clio.com/careers.