At a Glance
- Tasks: Design and develop bespoke applications using cutting-edge .NET and Azure technologies.
- Company: Join one of the UK's fastest-growing tech companies with a collaborative culture.
- Benefits: Enjoy private health insurance, generous holidays, flexible working, and social events.
- Other info: Be part of a certified B Corp with excellent career growth opportunities.
- Why this job: Make a real impact while working on innovative projects for diverse clients.
- Qualifications: Strong experience in C#, .NET, and client-facing roles required.
The predicted salary is between 44100 - 53900 £ per year.
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.
Essential
- 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 Dev Ops and CI/CD pipelines.
- Ability to work directly with clients, gather requirements and communicate technical concepts clearly.
Desirable
- Experience with Python, PHP, Java or other back-end technologies.
- Exposure to React, Angular or Vue.
- Experience integrating with Microsoft 365, Share Point, Dynamics or Business Central.
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.
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
Senior Full Stack Developer employer: Zenzero Solutions Ltd
Zenzero is an exceptional employer that values innovation and collaboration, providing a dynamic work environment for IT Service Delivery professionals. Located in the UK, we offer competitive benefits, a strong focus on employee development, and opportunities for career advancement within a culture that prioritises continual improvement and teamwork. Join us to make a meaningful impact while enjoying a supportive atmosphere that fosters both personal and professional growth.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Full Stack Developer
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Zenzero Solutions Ltd or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Zenzero Solutions Ltd.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Zenzero Solutions Ltd.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Zenzero Solutions Ltd that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Full Stack Developer
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Zenzero Solutions Ltd.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Zenzero Solutions Ltd and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Zenzero Solutions Ltd
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Zenzero Solutions Ltd uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
