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# Back End Developer

- **Company:** Insight
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Amazon Elastic Compute Cloud, Automation of Tests, C Sharp (Programming Language), Databases, Python (Programming Language), Microsoft SQL Server, Commercial Software, Ansible, Amazon Simple Notification Service (SNS), SQL Stored Procedures, Transact-SQL, GitHub Copilot, Database Migration, AngularJS, Virtual Agents, Amazon Simple Queue Service (SQS), Terraform
- **Published:** July 3, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=2854470672-2

## About the Role

* Strong commercial software development
 * Strong SQL Server (T-SQL, stored procedures)
 * Solid C#.NET development
 * Terraform / infrastructure-as-code
 * Python and lightweight Angular where beneficial
 * Experience building reusable services and APIs for onboarding data feeds/applications
 * Comfortable across multiple integrations in a monolithic, database-heavy system

Plusses:

 * AWS native services - Lambda, DMS, EC2, SQS, SNS
 * Ansible / wider IaC tooling
 * Financial Markets (Equity) / Index Services domain knowledge
 * Agentic AI tooling (e.g. GitHub Copilot)
 * Cross-account AWS integration pattern experience

## Description

Insight Global is looking for a Senior Developer to join the Integration team within an global financial services organisation, enabling faster and more consistent onboarding of new applications and data feeds into business-as-usual platforms. The team builds reusable services, APIs and supporting infrastructure (leveraging AWS native services where appropriate) in a Kanban delivery model. The core stack is SQL Server (~30%), C#.NET (~30%), Terraform (~20%), Angular (~10%) and Python (~10%).

Please note, this is a PAYE contract starting at 12 months with strong possibility for extensions and/or conversion to FTE. This role requires you to be on-site 3 days a week in the office based out of London.

Day-to-Day Responsibilities:

 * Build and evolve reusable integration services and APIs for data-feed and application onboarding
 * Support Database Migration Services to replicate data from one platform, to another
 * Automating ingestion of monthly files produced by one platform to another
 * Define communication contracts and processes
 * Apply strong data modelling and automated testing across integrations
 * Work within architectural governance for cross-account AWS integration
 * Take assigned stories end-to-end through to production via BAU release, defect and change processes


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