Senior C# Engineer – Global Payments & OTC Energy | 130k | Front office |London | 3-days in office

Skills

Job Specifications

Senior C# Engineer – Global Payments & OTC Energy | 130,000| Front Office | London | 3-days in office

Location: London (Central) Working Pattern: Hybrid (3 Days Office / 2 Days Remote) Sector: Global Financial Services & Liquidity Provider (Nasdaq Listed)

The Mission: Architecting a High-Performance Payment Backbone

Our client is not looking for a "ticket-taker." Following their 2024 Nasdaq listing, they are scaling a globally distributed payments platform and an OTC Energy risk engine. This is a high-visibility "builder" role where you will be tasked with solving the complexity of real-time global liquidity.

You will join an elite, business-aligned squad that functions like a fintech pod within a global powerhouse. Your mission is to deliver low-latency, event-driven architectures that can handle the massive throughput of the modern energy markets.

We are looking for engineers who treat C# as a high-performance instrument.

The Core: Mastery of Modern .NET (8/9). You should be comfortable with memory management, Zero-GC allocation patterns, and high-concurrency scenarios.
Cloud-Native Architecture: Designing and deploying Immutable Infrastructure on AWS using Terrafo.
Distributed Systems: Deep experience with Event-Driven Workflows (Kafka/RabbitMQ) and designing High-Throughput APIs that maintain 99.99% resiliency.
Full-Stack Capability: Proficiency in React/TypeScript for building low-latency, real-time trader dashboards.
Engineering Rigor: A "test-first" mindset (TDD/BDD) and a mastery of SOLID and Clean Architecture.

Your Impact

Direct Business Proximity: You will sit within the OTC Energy stream, working with traders to translate market volatility into robust software solutions.
Leadership & Mentorship: You will own the developer ecosystem, driving an automation-first DevOps culture and mentoring the next generation of engineers.
Legacy Modernization: Leading the transition from legacy warehousing to Snowflake, enabling faster alpha generation and real-time reporting.

Why this role stands out (The 2026 Benefits)

High-Alpha Bonus Culture: Move away from the capped "Retail Bank" bonus pools. This role is tied to the performance of a high-growth, Nasdaq-listed front-office business.
Modern Hybrid Flexibility: A sensible 3/2 split in a tech-first office designed for collaboration, not just desk-sitting.
Greenfield Scope: You are joining at the start of a multi-year platform reimagining—you will have "Sovereignty" over architectural decisions.

If you're interested reach out to Samw@virtuetech.io

About the Company

From start-ups to unicorns, you need great people to grow, so at VirtueTech we do recruitment differently. We believe companies are defined by their people, so connecting clients and candidates through mu-tual values is key for a thriving business. With a joint brand mission being paramount for success, you need an agency aligned with that purpose. Which is precisely where we come in... At VirtueTech jobs are more than just a salary, they're a passion. So we understand and reflect our clients values, in both ourselves and... Know more

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