asp .net developer jobs in South Yorkshire

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...

You will join a cross-functional product engineering team working on the evolution and modernisation of a core SaaS platform. The focus is on building scalable, cloud-native services while improving reliability, performance, and long-term maintainability.

You will be trained in all aspects of: . NET 9, Web API 2, Entity Framework, Microservices, Azure, JavaScript, Angular 19, Bootstrap, Agile and MongoDB. Top performers can expect to receive their first promotion (and pay rise) within 6 months.

Business Development Manager - UK Market Entry High-Value Capital Equipment | Aesthetic Medical Technology We are supporting the UK launch of a next-generation aesthetic medical technology platform operating at the intersection of Imaging, software, and AI. Our client is looking for the UK's top performing capital aesthetic reps to join this incredible journey of growth and differentiation from...

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

C# Software Developer – Exciting Opportunity with a Growing Tech Company Are you an experienced .NET and Azure developer looking for an opportunity to lead exciting projects in Web, Desktop, and Cloud development? Our client, a well-established software development company, is expanding its team and looking for Lead and Senior Software Developers to drive innovation and shape the future of its...

You will be working on Greenfield projects with focus towards Machine Learning and Azure. We are looking for developers to have experience of the following:

Henry Boot is one of the UKs leading land, property development, home building and construction businesses, transforming land and spaces since 1886. Interested in learning more about this job Scroll down and find out what skills, experience and educational qualifications are needed. They have an ambitious responsible business strategy to help meet their aim of being net zero carbon by 2030 and...

Job Description We need everyone's positive energy and innovative thinking to lead the energy transition to net zero. That's why we welcome applications from all backgrounds and experiences and have a range of flexible working options to suit everyone! Energy Center Engineer - Sheffield We are looking for an Energy Center Engineer to join EIS, this role will be covering the North Region –...

Accountability Officer - Remote Salary: £47,000p.a.FTE (pro-rata salary for 30+ hours)We also offer 27 days of annual leave (pro-rated for hours worked) plus bank holidays and a birthday day off, 8% employer pension contributions, a core hours system of working and enhanced family friendly policies Contract: Permanent Hours: 37.5 hours per week (30+ hours per week and job share will be...

You will be a great fit if you: - Have 5+ years full-stack experience, with strong JavaScript/TypeScript depth. - Are backend-leaning, with deep Node. js and API experience. - Have previously worked in early-stage start-ups or very lean engineering teams. - Have extensive evidence of being a hands-on individual contributor in complex codebases.

You will lead on International Waste Shipments regulation, ensuring businesses meet legal requirements. You'll also assess compliance and take proportionate enforcement action to maintain high standards.

You will be contracted to the nearest NRW office to your home and a suitable hybrid working pattern will be agreed on appointment.

About the Job This position is for a Senior Software Engineer with a minimum of 5 years of experience in backend development and a passion for building robust, scalable systems. We are looking for an engineer with a strong background in the C# .NET ecosystem, and a preference for candidates with significant experience on AWS. Are you ready for a challenge? We’re looking for a dynamic software...

You will be responsible for building and executing a new business sales strategy, selling Microsoft Data & AI consulting services into enterprise and mid-market customers across FSI, Retail, Private Sector and MSP-led accounts. Key Responsibilities - Own and drive net-new logo acquisition across Data, Analytics, AI and Modern Data Platform services

Business Development Manager - UK Market Entry High-Value Capital Equipment | Aesthetic Medical Technology We are supporting the UK launch of a next-generation aesthetic medical technology platform operating at the intersection of Imaging, software, and AI. Our client is looking for the UK's top performing capital aesthetic reps to join this incredible journey of growth and differentiation from...

Accountability Officer - Remote Salary: £47,000p.a.FTE (pro-rata salary for 30+ hours)We also offer 27 days of annual leave (pro-rated for hours worked) plus bank holidays and a birthday day off, 8% employer pension contributions, a core hours system of working and enhanced family friendly policies Contract: Permanent Hours: 37.5 hours per week (30+ hours per week and job share will be...

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...

About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‐first, often highly complex software. Our engineers pair forward‐thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‐standing third‐party clients, we're scaling our own SaaS product—Spark...

You will join a cross-functional product engineering team working on the evolution and modernisation of a core SaaS platform. The focus is on building scalable, cloud-native services while improving reliability, performance, and long-term maintainability.

Accountability Officer - Remote Salary: £47,000p.a. While professional experience and qualifications are key for this role, make sure to check you have the preferable soft skills before applying if required. FTE (pro-rata salary for 30+ hours)We also offer 27 days of annual leave (pro-rated for hours worked) plus bank holidays and a birthday day off, 8% employer pension contributions, a core...