C# Full Stack Developer – ON-SITE

Job Overview

Company logo: https://media.licdn.com/dms/image/v2/D4E0BAQFFXODOxbibHQ/company-logo_400_400/company-logo_400_400/0/1736248293703/zest_benefits_logo?e=1749081600&v=beta&t=0_hqP4B9YLDogIhjZv3ew03Jw7LY4-P4iqC5ShH-DOQ C# Full Stack Developer (.NET 9, ASP.NET Core microservices, MVC, Blazor)Salary Range: £47,500-£52,500Permanent, Full TimeLocation: Hybrid remote with a minimum of one day per week at our office in Leatherhead, Surrey.

About usZest is transforming the way employers engage with their people. Our market leading SaaS platform empowers businesses to deliver a world class employee proposition, allowing employees to tailor their benefits package, understand their total reward, access personalised content and communications and celebrate their colleagues’ achievements. Our platform supports hundreds of employers, including household names like Yahoo, Hargreaves Lansdown and Travis Perkins, create a workplace where employees feel valued, informed and deeply connected to their company’s success.
We’re proud to boast an impressive NPS of over 70%, a testament to our commitment to outstanding client and end-user experiences. But what truly sets us apart is our culture. Here at Zest, we foster a work environment that’s as friendly as it is professional, as high-performing as it is supportive. We’re a team that thrives on empowerment, autonomy, and the support each member needs to excel.
Our doors are open to those who bring a natural drive to excel in their discipline, who challenge the status quo, and who drive continuous improvement. We celebrate achievements, learn openly from failures, and set a high bar for ourselves and our peers. If you’re ready to contribute to a positive, dynamic team that helps each other grow, Zest might just be the place for you.
About the jobTo be a contributing member of an agile development team working as a Microsoft .net 9 full stack developer on our industry leading software. Day to day you will develop and maintain the code in C#, ASP.NET Core MVC, Blazor, unit tests and DevOps code underlying the core Zest product and any associated tools and systems, as well as being involved in the planning process with other team members and the Product Team.
Areas of responsibilityDevelopment of new features in Zest’s flagship productTo ensure high quality and accuracy is maintained through to software releaseInvestigate, analyse and resolve reported defectsDevelopment solutions with performance, scalability and security in mindHelp Zest stay at the forefront of technological innovationBe open to bringing your own expertise and experience to bear on the design and delivery of all software produced by the team.
Key competencies and skills required for this roleSoftware Development: You have a strong understanding of object-oriented programming (OOP) principles and design patterns and are passionate about make use of these to write clean, efficient, and maintainable code. You understand responsive design and have a strong sense of aesthetics and visual design. You have experience in building scalable web applications using Microsoft technologies and containerisation.Agile Mindset: You value the ability to deliver solutions to end users at the earliest opportunity, ensuring they can be iterated upon while maintaining exceptional quality. You understand agile frameworks (e.g., Scrum) but are flexible in your approach, always seeking the most effective way to work and achieve the best outcomes for the business.Drive and Energy: You are driven by the pursuit of excellence, continuously striving to improve our platform and our ways of working. Your ambition and energy set you apart, and you thrive in an environment that offers autonomy beyond the typical corporate setting. You are comfortable challenging and being challenged by colleagues across product, technical, and operational domains with a respectful, positive, can-do attitude.Growth-Oriented: You are hungry for growth and continuous learning, with a passion for staying updated with the latest technologies and best practices.
Experience / Skills RequiredFull Stack Development: Proficient in developing full stack applications using Microsoft C# with 2-4 years of hands-on experienceFront-End & Back-End Integration: Demonstrated ability to seamlessly integrate front-end and back-end componentsUI/UX: Knowledge of HTML, CSS, and JavaScript. An understanding of responsive design. Experience with front-end frameworks like BootstrapBlazor/Razor/MVC: Proficiency in Blazor, Razor, and MVC frameworks for building dynamic web applicationsObject-Oriented Development & SOLID Principles: Strong understanding and practical application of object-oriented design principles and SOLID design principlesEntity Framework: Experience with Entity Framework for data access and managementContainerisation: Practical experience with containerisation technologies (e.g. Docker, Kubernetes) for deploying and managing applicationsCloud Experience: Hands-on experience with Azure or other cloud platforms, including deployment, scaling, and management of cloud services.
Additional InformationCompetitive salary, with comprehensive range of flexible benefitsNormal working hours 37.5 per weekOffice location: Kings Court, Kingston Road, Leatherhead, Surrey, KT22 7SL.
Zest is an equal opportunities employer. If you don’t meet every single requirement, please don’t let that hold you back. Research indicates that some candidates hesitate to apply for roles unless they meet every criterion. We’re committed to fostering an inclusive workforce, so if you’re enthusiastic about this opportunity but your experience isn’t an exact match, we encourage you to apply.
No agencies please.

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