Senior Full-Stack Engineers (multiple roles available)

The MRJ Group; Greater Manchester; Hybrid; GBP 65,000 - 70,000; Full time

Job summary

A fast-scaling tech company in Manchester is seeking a Senior Full-Stack Engineer to join their team. The role requires strong experience in React and .NET, along with a product-focused mindset. You will be responsible for taking ownership of the full stack, working closely with product and design teams, and mentoring junior developers. This position offers a competitive salary of up to £70k and additional perks in a hybrid working environment.

Qualifications

• UK-based, with no visa/sponsorship requirements.
• Strong full-stack experience (React + .NET ideal).
• Comfort mentoring others and influencing ways of working.
• A love for clean code, TDD, CI/CD.

Responsibilities

• Take ownership across the full stack (React / .NET / AWS).
• Work closely with product & design to ship features users love.
• Help evolve the platform’s architecture and scalability.
• Mentor juniors and lead by example on clean, well-tested code.

Skills

Full-stack development

React

C#

AWS

Mentoring

Clean code

Tools

TypeScript

.NET Core

SQL Server

MongoDB

GitHub Actions

Job description

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003964 Posted: 08/11/2025

• £65,000 to £70,000
• Manchester / Hybrid
• Permanent

Senior Full-Stack Engineer – Manchester / Hybrid – Up to £70k + Perks

At MRJ, we’re hiring on behalf of a fast-scaling tech company that’s just hit a real turning point:

• New funding secured
• A high-profile CTO at the helm
• Solid commercial traction
• A seriously strong client base already using the product

Now, they're entering a new chapter — levelling up the platform and building out a world-class in-house engineering team.

The mission?

To modernise an outdated, fragmented industry with a unified platform that helps people connect, transact, and manage essential services smarter and faster. The platform’s already live, multi-brand, and quietly gaining serious momentum.

Where you come in:

They’re on the lookout for aSenior Full-Stack Engineer,someone who thrives in product-focused teams, brings technical excellence, and wants to be part of shaping something game-changing.

The environment is hands-on, agile, and moving fast. You’ll:

• Take ownership across the full stack (React / .NET / AWS)
• Work closely with product & design to ship features users love
• Help evolve the platform’s architecture and scalability
• Mentor juniors and lead by example on clean, well-tested code
• Be trusted to influence big decisions, not just build tickets

Tech stack:

• Frontend: React, TypeScript, Next.js
• Backend: .NET Core (C#), REST APIs
• Infra: AWS (ECS, Fargate), Terraform
• Data: SQL Server, MongoDB
• DevOps: GitHub Actions, CI/CD, TDD

What you’ll need:

• UK-based, with no visa/sponsorship requirements
• Strong full-stack experience (React + .NET ideal)
• A product mindset, you care about what you build, not just how
• Comfort mentoring others and influencing ways of working
• A love for clean code, TDD, CI/CD, and scalable architecture

We’ve got exclusive insight into the company’s plans, team culture, and interview process — and we’ll help you every step of the way. If you’re curious, we’ll give you the inside track to help you stand out.

Message us today and let’s talk.

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