Future Tech Jobs Future Tech Jobs

Senior C# Developer

Avanti
Sl10Bu, SL1 0BU, United Kingdom
3 weeks ago
£65,000 – £80,000 pa

Salary

£65,000 – £80,000 pa

Job Type
Permanent
Work Location
Hybrid
Seniority
Senior
Education
Degree
Posted
12 May 2026 (3 weeks ago)

Benefits

Benefits
Share
Save job
Create job alert

Avanti Recruitment is working with a growing, technology-led business based in Slough, that is undergoing a major systems transformation following a recent acquisition. As part of this programme, they are looking to hire a Senior .NET / C# Developer to play a key role in evolving a large-scale legacy platform and supporting its transition from an on-premise desktop environment to a modern, .NET Core, cloud-based architecture.

This is a great opportunity for someone who enjoys solving complex engineering challenges and has experience moving legacy or desktop-based applications towards modern web and cloud platforms. You will be joining at an important stage of the transformation, with around 40 projects in the pipeline, giving you the opportunity to influence technical direction and make a genuine impact on the future of the platform.

The role will involve working closely with the CTO and wider engineering team to assess, improve and progressively enhance an established C# codebase built on older Microsoft technologies. Due to the nature of the work, the business is open to hybrid working, but they would ideally like someone who can attend onsite regularly during the early stages of the project for collaboration, planning and technical workshops

Current Tech Environment:

  • C#
  • .NET Framework
  • WinForms
  • MS SQL Server
  • On-prem infrastructure
  • React frontend integrations
  • Legacy Desktop applications
  • CI/CD and agile practices
  • TDD

Required Experience:

  • C#
  • .NET Framework & .NET Core
  • WinForms / desktop application development
  • MS SQL Server
  • Refactoring and modernisation projects
  • Agile environments
  • CI/CD practices
  • Testing methodologies such as TDD
  • Cloud experience

Desirable:

  • Experience migrating legacy systems
  • React or JavaScript exposure

This is an opportunity to shape a long-term transformation programme, with high-level of technical ownership and influence. This role will require greenfield thinking within an established business, and you will get direct access to leadership and architecture decisions. You will be part of a small, collaborative engineering team, with long-term progression opportunities as the technology function grows.

Salary is £65,000 - £80,000 + Benefits.

Related Jobs

View all jobs

Senior .NET Developer

Avanti Sl38Be, SL3 8BE, United Kingdom
£65,000 – £80,000 pa Hybrid

Senior Software Developer C and Linux

System Recruitment Lymington, Hampshire, United Kingdom
£250 – £350 pd Hybrid

Lead C# Developer

Reed Sr12Jr, SR1 2JR, United Kingdom
£65,000 – £85,000 pa On-site

C# Software Developer – Energy Sector Experience Required!!

Adria Solutions Manchester, United Kingdom
£55,000 – £65,000 pa Hybrid

Lead Software Developer

Oscar Technology Nottingham, United Kingdom
£60,000 – £70,000 pa Hybrid

Full Stack .Net Developers (Modernisation & Greenfield)

HAYS Specialist Recruitment Milton Keynes, United Kingdom
£45,000 – £58,000 pa Hybrid

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Products

Where to Advertise Cloud Computing Jobs in the UK (2026 Guide)

Where to advertise cloud computing jobs UK in 2026: the specialist boards and channels that reach AWS, Azure, GCP and cloud-native engineering talent. The candidate pool is large relative to other deep tech disciplines but highly segmented — cloud architects, DevOps engineers, platform engineers, FinOps specialists and cloud security professionals each occupy distinct communities with different job search behaviours, certification profiles and salary expectations. General job boards reach a broad audience but struggle to differentiate between these disciplines, producing high application volumes but low candidate quality for specialist cloud roles. This guide, published by CloudComputingJobs.co.uk, covers where to advertise cloud computing roles in the UK in 2026, how the main platforms compare, what employers should expect to pay, and what the data says about hiring across different role types.

Jobs

Cloud Computing Jobs UK 2026: What to Expect Over the Next 3 Years

Cloud Computing Jobs UK 2026: salaries, hiring trends and the AWS, Azure and GCP skills shaping UK cloud careers over the next three years. Cloud computing is the infrastructure layer on which the modern digital economy runs — and the jobs market that has grown around it is one of the largest, most sustained, and most structurally resilient in the entire technology sector. But the cloud computing jobs market of 2026 looks quite different from the one that existed three years ago, and the next three years will bring further change at a pace that rewards those who understand the direction of travel. The migration phase that defined cloud hiring for much of the previous decade is largely complete for enterprise organisations. The question for most UK businesses is no longer whether to move to the cloud but how to operate, optimise, and secure what they have already built there — and how to integrate the wave of AI capability that is now being delivered primarily through cloud infrastructure. That shift has profound implications for which cloud skills are in demand, which roles are growing, and which are beginning to plateau. At the same time, new architectural patterns — multi-cloud, cloud-native, serverless, and the growing integration of edge computing with centralised cloud infrastructure — are creating entirely new categories of specialist expertise that employers are actively competing to hire. The cloud computing jobs market of 2026 is not contracting. It is evolving, and evolving in ways that create significant opportunity for job seekers who are building the right skills. This article breaks down what the UK cloud computing jobs market is likely to look like through to 2028 — covering the titles emerging right now, the technologies driving employer demand, the skills that will matter most, and how to position your career ahead of the curve.

🍪 Basic, anonymous analytics (aggregate counts only, never shared) are always on. Accept to also enable third-party tools — Google Analytics, Microsoft Clarity, Mixpanel, Leadfeeder — which help us match you with relevant Cloud Computing roles. We never sell your data or use it for cross-site advertising. See our Cookie Policy.