Insight Global
Senior Full Stack Developer
Get notified of more jobs like this · No spam, ever
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Senior Full Stack Developer
Insight Global are seeking a Senior Full Stack Developer to join a leading global financial markets organisation within its Index Delivery & Product team. Working within a Frontier AI Cyber Remediation programme, this position will focus on enhancing and modernising business-critical index management platforms, supporting application migration initiatives, and developing scalable backend services and user-facing applications.
This position requires 3 days onsite in London, UK for a 6-month contract (through March 2027) and is Inside IR35.
The successful candidate will work across the full software development lifecycle, partnering with product teams, business stakeholders, and engineers to deliver secure, reliable, and high-performing solutions. The role offers a strong mix of backend and frontend development, with an approximate 60/40 split between backend and frontend responsibilities.
Must-Have Requirements Include:
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
- Strong hands-on development experience with C# and .NET
- Frontend development experience using Angular
- Experience building, enhancing, and supporting APIs and backend services
- Enterprise web application development across both frontend and backend technologies
- Working knowledge of Microsoft SQL Server and T-SQL
- Ability to investigate and resolve complex application, data, and business issues independently
- Experience supporting platform migration, transformation, or application modernisation initiatives
- Experience leveraging AI tools within the software development lifecycle
- Excellent communication, stakeholder management, and problem-solving skills
- Strong ownership mentality with the ability to drive workstreams from discovery through implementation
Plusses Include:
- Experience working with AWS or cloud-hosted applications
- Knowledge of AWS services such as EC2 and Lambda
- Experience migrating or modernising legacy .NET applications
- Experience working with microservices architectures and RESTful APIs
- Familiarity with CI/CD pipelines and automated deployment practices
- Experience with Infrastructure as Code (IaC) tools such as Terraform
- Background working with financial data, market data, benchmarks, or equity indices
- Understanding of index configuration, calculation, or lifecycle management processes
- Experience analysing, validating, or reconciling large historical datasets
- Experience developing secure, business-critical enterprise applications
- Financial Services or Capital Markets industry experience
Get help with your application
Your very own career expert that helps elevate your application to the next level.
This is an excellent opportunity to join a high-profile technology transformation programme within a leading financial markets environment, helping to modernise critical platforms while working with cutting-edge development practices, cloud technologies, and AI-enabled engineering tools.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Location