VirtueTech Recruitment Group
Lead .NET Developer - Hybrid - Up to £700/day Outside IR35 | C# | Azure | Event Driven Systems | Payments | API Driven
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Lead.NET Developer - Hybrid - Up to £700/day Outside IR35 | C# | Azure | Event Driven Systems | Kafka | CosmosDB
We have a unique opportunity for a Lead.NET Developer to join a payments company.
About the Role
As the Lead.NET/Full Stack Developer, you’ll play a key role in shaping and scaling a high-throughput payments platform as the business enters its next phase of growth. This includes launching new products, enabling new partner integrations, and expanding a platform that already powers multiple live financial services products used globally.
You’ll be building on top of a modern, cloud-native platform built with.NET and Azure, designed around API-first architecture and event-driven microservices. The platform supports complex payment flows, partner integrations, and high-volume transaction processing.
This is a hands-on technical role where you’ll help drive engineering best practices, contribute to architectural decisions, and mentor developers while remaining close to the code.
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Working closely with Product, Data, Risk, and Platform teams, you’ll help evolve the platform architecture and ensure the delivery of secure, scalable, and resilient distributed systems within a regulated fintech environment.
Location
📍 2 days per week in the office – City of London
Compensation
💰 Up to £700/day Outside IR35
Duration
🗓️ Initial 6-month contract
Responsibilities
- Lead the design and development of high-performance.NET services powering a global payments platform
- Build and scale event-driven microservices running in Azure
- Drive best practices across architecture, coding standards, observability, and reliability
- Work closely with product teams to design API-driven payment and partner integrations
- Mentor and support engineers across the team while contributing hands-on to critical systems
- Help evolve a scalable, distributed architecture capable of handling high transaction volumes
- Contribute to improving engineering velocity, delivery quality, and platform resilience
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Requirements
- Strong experience building production systems with.NET / C#
- Experience building cloud-native systems in Azure
- Experience with event-driven architectures (e.g., Kafka, Service Bus, Event Grid, messaging systems)
- Experience with Azure Cosmos DB
- Proven experience building distributed systems and scalable APIs
- Experience working on payments platforms, fintech systems, or high-throughput transactional platforms
- Strong understanding of system design, reliability, and performance at scale
- Ability to lead technically while remaining hands-on in development
Company Benefits
- Hybrid working model
- Competitive daily rate outside IR35
- Opportunity to work on a global payments platform
- Collaborative and innovative work environment
Lead.NET/Full Stack Developer - Hybrid - £700/day Outside IR35 | C# | Azure | Event Driven Systems | Payments | API Driven
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