Senior Developer

Roc Search; Milton Keynes; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Roc Search is seeking a Senior Full Stack Developer in Milton Keynes (Hybrid) to modernise a mature SaaS platform and deliver new features. You will work directly with clients and internal teams to shape solutions with strong C#/.NET and SQL expertise.

The role requires collaboration across Product, Professional Services and Engineering, and you will influence architectural decisions while taking ownership from design through delivery.

Qualifications

• 5+ years' commercial full stack development experience.
• Strong C#/.NET and SQL skills.
• Experience delivering SaaS applications.
• Excellent communication with client stakeholders.

Responsibilities

• Modernising and enhancing a mature SaaS platform.
• Building new features using modern development practices.
• Working directly with clients to understand requirements and deliver technical solutions.
• Collaborating with Product, Professional Services and Engineering teams.
• Influencing technical decisions and contributing to future architecture.
• Taking ownership from design through to delivery.

Skills

C#

.NET

SQL Server

React

Vue.js

Job description

Senior Full Stack Developer | C#/.NET | SaaS | Milton Keynes (Hybrid)

Milton Keynes | 2 days onsite

We're working with a growing SaaS business in Milton Keynes that's investing heavily in the evolution of its flagship platform. As part of a major legacy modernisation programme, they're looking for a Senior Full Stack Developer to help shape the next generation of their product.

This is a hands‑on role within a collaborative Professional Services team, where you'll be working closely with clients and internal stakeholders to deliver scalable, modern solutions that make a real commercial impact.

• C#
• .NET
• SQL Server
• React or Vue.js

What you'll be doing

• Modernising and enhancing a mature SaaS platform.
• Building new features using modern development practices.
• Working directly with clients to understand requirements and deliver technical solutions.
• Collaborating with Product, Professional Services and Engineering teams.
• Influencing technical decisions and contributing to the future architecture of the platform.
• 5+ years' commercial full stack development experience.
• Strong C#/.NET and SQL skills.
• Excellent communication skills and confidence working with client stakeholders.
• Someone who enjoys solving complex problems and takes ownership from design through to delivery.

If you're looking for a role where you can have genuine influence, work closely with customers, and play a key part in modernising a successful SaaS product, we'd love to hear from you.