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

JR United Kingdom; Basingstoke; On-site; GBP 50,000 - 75,000; Full time

Job summary

A leading tech company in Basingstoke is seeking a Server-Side C# Engineer to join their innovative engineering team. You'll tackle complex engineering challenges on a next-generation SaaS platform, contributing to architectural decisions and utilizing a modern technology stack. Flexibility and collaboration are key in this engaging environment, where your insights will directly impact the evolution of their systems.

Benefits

Flexible working hours

Collaborative team environment

Opportunity to mentor and lead projects

Access to cutting-edge technologies

Qualifications

• 8+ years of commercial server-side C# experience across multiple codebases.
• Experience with Event Sourcing and DDD in production.
• Proficiency in asynchronous messaging systems like RabbitMQ, Azure Service Bus, or Kafka.

Responsibilities

• Work on a greenfield microservices platform with 24+ services.
• Contribute to architectural direction as part of a mature agile team.
• Implement complex event sourcing and transactional systems.

Skills

C#

.NET

Event Sourcing

Domain-Driven Design (DDD)

Asynchronous messaging systems

Job description

Social network you want to login/join with:

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

**Job Overview:**

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

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

**What You’ll Work On:**

• 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 minimize support tickets
• A technically mature, agile team where every developer contributes to architectural direction

**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 offers hands-on leadership opportunities
• Event Sourcing & DDD: 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)

**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

**Why You’ll Love It:**

• 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 system evolution
• Relaxed, mature setup: Flexible hours and a team of experienced professionals who value great code
• Modern stack: Use of cutting-edge tools in real-world applications