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

JR United Kingdom; Bath; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading tech firm is seeking a Server-Side C# Engineer in Bath to enhance their innovative SaaS platform. In this role, you will tackle complex engineering challenges, build microservices, and influence architectural decisions within a collaborative team environment. The position emphasizes a test-first approach, offering flexibility and opportunities to shape system design.

Benefits

Flexible hours

Opportunity for leadership

Modern tech stack

Qualifications

• Approximately 8 years of experience in C#/.NET.
• Proficiency in event sourcing and DDD.
• Experience with messaging systems like RabbitMQ or Kafka.

Responsibilities

• Developing a microservices platform with 24+ services.
• Building high throughput systems processing thousands of requests.
• Contributing to architectural decisions within the team.

Skills

C#/.NET

Event Sourcing

DDD

Messaging Tech

Job description

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

**Location:** Bath, United Kingdom

**Job Category:** Other

**EU work permit required:** Yes

**Job Views:** 8

**Posted:** 04.06.2025

**Expiry Date:** 19.07.2025

Job Description:

Our client is on a mission to simplify complex delivery infrastructure and has built a next-generation SaaS platform that is scaling internationally. With the UK launch complete and a US rollout underway, they are addressing significant engineering challenges and delivering powerful technology at scale.

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

What You’ll Work On:

• Developing a greenfield microservices platform (24+ services) based on CQRS, Event Sourcing, and DDD
• Building high throughput transactional systems processing tens of thousands of requests per hour
• Implementing real-time tracking and customer self-service layers to reduce support tickets
• Contributing to an architecturally mature, agile team where every developer influences architectural decisions

Tech Snapshot (and What You Must Know Cold):

• C#/.NET: Approximately 8 years of commercial server-side experience, ideally across multiple codebases and domains
• Mentoring and training other engineers—this role involves hands-on leadership
• Event Sourcing & DDD: Proven experience implementing, supporting, and evolving these patterns in production environments
• Messaging Tech: Proficiency in at least one asynchronous message-based system (e.g., RabbitMQ, Azure Service Bus, Kafka)

What You'll Bring:

• A test-first, craft-focused engineering mindset
• Strong architectural instincts with a collaborative attitude
• Comfort with modern engineering workflows and continuous delivery practices

Why You’ll Love It:

• Interesting problems: Working with event sourcing at scale, complex routing logic, and fast data decisions
• Input into architecture: Opportunities to shape system evolution
• Relaxed, mature setup: Flexible hours and a team that values quality code
• Modern stack: Utilizing cutting-edge tools in real-world applications