Senior Full Stack Developer Zenzero Solutions Ltd

Abundant Code; Leeds; Hybrid; GBP 65,000 - 100,000; Full time

Benefits offered by this job

Private health insurance

Birthday off

Flexible working patterns

Enhanced pension

Social events

Job summary

Zenzero Solutions Ltd is recruiting two senior .NET developers to support our growing Digital Development Services team in Leeds. You will design, develop and maintain bespoke applications and integrations for client projects.

You will work directly with clients, project managers and technical peers, delivering high-quality solutions using C#, .NET, Azure and RESTful APIs, with a focus on maintainability and performance.

Qualifications

• Strong commercial experience developing solutions with C# and .NET (Core and/or Framework).
• Experience with ASP.NET MVC, Web API or Blazor.
• Knowledge of Microsoft Azure services including App Services, Functions, Logic Apps and Storage.
• Strong SQL Server and relational database design skills.
• Experience developing RESTful APIs and third-party integrations.
• Working knowledge of Git-based collaborative development workflows.
• Experience using Azure DevOps and CI/CD pipelines.
• Ability to work directly with clients, gather requirements and communicate technical concepts clearly.

Responsibilities

• Design, develop and maintain bespoke applications and system integrations for clients.
• Build full-stack solutions using Microsoft .NET and Azure technologies.
• Contribute to solution architecture and technical design discussions.
• Write clean, well-tested and well-documented code that supports long-term maintainability.
• Partner with project managers, technical teams and clients throughout project delivery.
• Drive successful client outcomes through effective communication and consultancy.
• Own the delivery of development tasks from requirements through to deployment.
• Support and mentor junior team members where appropriate.

Skills

C# / .NET

ASP.NET MVC / Web API / Blazor

SQL Server

RESTful APIs

Git

Azure DevOps

CI/CD

Client communication

Tools

Azure App Services

Azure Functions

Azure Logic Apps

Azure Storage

Git

CI/CD pipelines

Job description

Company Name: Zenzero Solutions Ltd

Job Role: Senior Full Stack Developer

Qualifications: Not specified

Category: I

Job Type: Full Time

Location: Holly Park Mills, Woodhall Rd, Leeds, United Kingdom

What we're looking for

• Strong commercial experience developing solutions with C# and .NET (Core and/or Framework).
• Experience with ASP.NET MVC, Web API or Blazor.
• Knowledge of Microsoft Azure services including App Services, Functions, Logic Apps and Storage.
• Strong SQL Server and relational database design skills.
• Experience developing RESTful APIs and third-party integrations.
• Working knowledge of Git-based collaborative development workflows.
• Experience using Azure DevOps and CI/CD pipelines.
• Ability to work directly with clients, gather requirements and communicate technical concepts clearly.

Nice to have

• Experience with Python, PHP, Java or other back-end technologies.
• Exposure to React, Angular or Vue.
• Experience integrating with Microsoft 365, SharePoint, Dynamics or Business Central.
• Previous experience in an MSP, consultancy or other client-facing development environment.

What you'll get

Benefits

• Private health insurance
• Generous holiday allowance + a day off on your birthday
• Flexible working patterns
• Enhanced pension contributions
• Regular social events across all our offices

The role

Zenzero is one of the UK's fastest-growing technology companies. Named a Top 8 Technology Company at the British Business Awards 2026, recognised by Deloitte as a Best Managed Company, and featured in the Sunday Times Hundred (an annual ranking of the UK’s fastest-growing private companies) in both 2025 and 2026, we hold Microsoft Solutions Partner status across all six designations, putting us in the top tier of UK Microsoft partners. The accolades reflect something real: a business that is scaling fast, executing well, and building something that lasts.

We're on a mission to make technology genuinely work for mid-market businesses, covering managed IT, cyber security, cloud, and AI solutions that actually move the needle. The demand is growing, and so are we.

We're also a certified B Corp and Scale Up Award winner. That combination matters to us: high growth and high standards aren't in conflict here. Fast growth, high standards, real impact. If that sounds like your kind of place, keep reading.

About the Role

We are recruiting two senior .NET Developers to support growing demand across our Digital Development Services (DDS) team. With a strong client project pipeline and increasing demand for bespoke software solutions, these roles will play a critical part in delivering high-quality outcomes for our clients.

This is a client-facing consulting position where you will work directly with organisations to design, develop and maintain custom applications and integrations. You will collaborate with project managers, technical specialists and clients throughout the delivery lifecycle, translating business requirements into effective technical solutions.

Success in this role means becoming a trusted contributor who can independently deliver high-quality development work, build strong client relationships, and help the DDS team successfully deliver a growing portfolio of projects.

What you'll do

Responsibilities

• Design, develop and maintain bespoke applications and system integrations for clients.
• Build full-stack solutions using Microsoft .NET and Azure technologies.
• Contribute to solution architecture and technical design discussions.
• Write clean, well-tested and well-documented code that supports long-term maintainability.
• Partner with project managers, technical teams and clients throughout project delivery.
• Drive successful client outcomes through effective communication and consultancy.
• Own the delivery of development tasks from requirements through to deployment.
• Support and mentor junior team members where appropriate.

Requirements

Essential

Visa sponsorship: check with employer