EXL (NASDAQ: EXLS) is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the world's leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect.
We are headquartered in New York and have more than 60,000 employees spanning six continents. For more information, visit
Role Title: .NET Core Backend Developer
BU/Segment: Analytics /Insurance
Location: London, United Kingdom (Flexible hybrid working)
Employment Type: Permanent
Summary of the role:
EXL is seeking an experienced .NET Core Backend Developer to join our Analytics team in London. You will design and build secure, scalable backend services and RESTful APIs that power enterprise-grade SaaS and analytics solutions, primarily within the insurance domain.
Working in an agile, cloud-first environment, you will develop high-performance microservices, optimise database performance, implement robust security protocols, and contribute to architectural decisions that support scalable, resilient systems.
This role offers the opportunity to work on advanced data and AI-driven platforms within a global organisation operating at scale.
As part of your duties, you will be responsible for:
* Design, develop and maintain backend services using .NET and .NET Core
* Build and expose RESTful APIs for front-end and third-party integrations
* Develop microservices aligned to modern architecture patterns
* Implement business logic, validation layers and data processing components
* Ensure optimal database performance across relational and non-relational systems
* Implement modern authentication and authorisation frameworks including OAuth2, SAML and JWT
* Develop secure, testable and reusable code aligned to best practice design principles
* Manage logging, monitoring, exception handling and performance optimisation
* Work within cloud environments such as AWS, Azure or GCP
* Contribute to containerised and serverless architectures using Docker and Kubernetes
* Collaborate with cross-functional teams in a distributed development environment using Git or equivalent tools
* Recommend improvements to architecture, processes and technologies
Qualifications and experience we consider to be essential for the role:
* 5+ years of experience as a .NET developer
* Strong expertise in .NET and .NET Core with solid object-oriented programming knowledge
* Strong SQL skills with experience across relational and non-relational databases such as PostgreSQL, Redshift, Trino or MongoDB
* Experience developing SaaS applications on public cloud infrastructure such as AWS, Azure or GCP
* Experience with containerisation and microservice architecture
* Experience implementing OAuth2, SAML or similar authentication protocols
* Strong understanding of design patterns, software architecture and performance optimisation
* Experience working in agile development environments
* Strong analytical, problem-solving and communication skills
* Eligible to work in the United Kingdom
Preferred Experience
* Experience working on insurance domain web products or SaaS platforms
* Understanding of insurance data models, underwriting or claims workflows
* Experience in asynchronous messaging architectures
* Exposure to performance testing frameworks
As part of a leading global Data and AI company, you can look forward to:
* A competitive salary with a generous bonus, private healthcare, critical illness life assurance at 4 x your annual salary, income protection insurance, and a rewarding pension.
* EXL provides everyday financial well-being solutions, such as cash back cards, in which you can earn cashback while enjoying discounts, promotions, and offers from top retailers. We also offer a Cycle Scheme where you can save money on bikes and cycling accessories.
* At EXL, we are committed to providing our employees with the tools and resources they need to succeed and excel in their careers. We offer a wide range of professional and personal development opportunities. We also support a range of learning initiatives that allow our employees to build on their existing skills and knowledge. From online courses to seminars and workshops, our employees have the opportunity to enhance their skills and stay up to date with the latest trends and technologies.
* As an Equal Opportunity Employer, EXL is committed to diversity. Our company does not discriminate based on race, religion, colour, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, age, or disability status.
* EXL employees are eligible to purchase stock as part of our Employee Stock Purchase Plan (ESPP).
* At EXL, we offer a flexible hybrid working model that allows employees to live a balanced, healthy lifestyle while strengthening our culture of collaboration.
To be considered for this role, you must already be eligible to work in the United Kingdom.