Server-Side C# Engineer – Build at Scale, Influence Architecture, Work Flexibly

erg group; United Kingdom; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading company is seeking a Server-Side C# Engineer to join their senior engineering team. You will work on a cutting-edge SaaS platform, tackling engineering challenges in event-driven architecture and distributed systems. This role offers flexibility and the opportunity to influence architectural decisions within a mature, agile team.

Qualifications

• 8 years commercial server-side experience with C#/.NET.
• Experience implementing Event Sourcing and DDD in production.

Responsibilities

• Join a senior-led engineering team working on a microservices platform.
• Mentor and train other engineers in a hands-on leadership role.

Skills

C#

Event Sourcing

DDD

Messaging Tech

Job description

Server-Side C# Engineer – Build at Scale, Influence Architecture, Work Flexibly

Get AI-powered advice on this job and more exclusive features.

This range is provided by erg group. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from erg group

Server-Side C# Engineer – Build at Scale, Influence Architecture, Work Flexibly

My client is on a mission to simplify complex delivery infrastructure—and they’ve built a next-generation SaaS platform that’s now scaling internationally. With UK launch already complete and a US rollout underway, they’re tackling big engineering challenges and delivering powerful tech at serious scale.

They’re now looking for a highly skilled server-side C# engineer to join their lean, senior-led engineering team—working on a platform that’s pushing boundaries in event-driven architecture, distributed systems, and customer-first delivery.

• A greenfield microservices platform (24+ services) built around CQRS, Event Sourcing, and DDD
• High throughput transactional systems processing tens of thousands of requests per hour
• Real-time tracking and customer self-service layers designed to minimise support tickets
• A technically mature, agile team where every developer contributes to architectural direction

Tech Snapshot (and What You Must Know Cold):

• C#/.NET: ~8 years commercial server-side experience, ideally across multiple codebases and domains
• → You’ll also mentor and train other engineers—this is a hands-on leadership opportunity
• Event Sourcing & DDD: Not just academic—you must have commercial experience implementing, supporting, and evolving these patterns in production
• Messaging Tech: Proficiency in at least one asynchronous message-based system (e.g., RabbitMQ, Azure Service Bus, Kafka, etc.)

What You'll Bring:

• A test-first, craft-focused engineering mindset
• Strong architectural instincts with a collaborative, debate-positive attitude
• Comfort with modern engineering workflows and continuous delivery
• Interesting problems: This isn’t CRUD—think event sourcing at scale, complex routing logic, and fast data decisions
• Input into architecture: Every engineer is involved in shaping how the system evolves
• Relaxed, mature setup: No clock-watching—just flexible hours and a team of adults who love great code
• ️ Modern stack: Real-world use of cutting-edge tools—not just theory

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology

• Industries

  Software Development

Referrals increase your chances of interviewing at erg group by 2x

Sign in to set job alerts for “Software Engineer” roles.

London, England, United Kingdom 2 weeks ago