Mid Developer jobs in Doncaster

Location: Leeds (Hybrid – typically 1–3 days per week onsite) Rate: £550–£700 per day (Inside IR35) Contract: 6 months initial Role Overview We are seeking an experienced Full Stack Developer to support the design, development, and delivery of large‑scale digital platforms. Working as part of a mult

Java / Kotlin Developer - Microservices - Tech Consultancy We’re working with a growing technology consultancy that partners with well-known financial services organisations to deliver modern, scalable platforms. They’re looking for a mid-level Java/Kotlin Developer to join a newly formed platform t

Dynamics Developer | £480 - £576 We're working with a specialist digital consultancy driving large-scale transformation for the British public sector on this exciting opportunity. This is a high-impact role within a central government digital transformation programme, where you will leverage Microso

Software Developer | £35,000 - £45,000 We're working with a leading AI-driven product powerhouse on this exciting opportunity to pivot into the world of Artificial Intelligence. Ditch the repetitive commercial coding and join a high-performing engineering team of 14, building real-world AI applicati

FDM is a global business and technology consultancy seeking a Junior Appian Developer to work for our client within the public sector. This is initially a 6 month contract with very good prospects to extend and will be a hybrid role that will be based in Leeds. Our client is seeking a Junior Appian

Akkodis

£40,000 - £50,000 /year

Full-Stack Developer (Node.js & React.js) Hybrid- East Sheffield Are you a budding full-stack developer with a passion for clean code and scalable systems? We're looking for a Junior Developer with experience in Node.js and React.js to join a growing tech team working on a cutting-edge, data-dri

Stafflex Ltd

€35,000 - €35,000 /year

Requirements Must have: - Practical experience with Laravel (routing, controllers, Blade templates) - Strong knowledge of HTML5, CSS3, and JavaScript (including jQuery) - Good working knowledge of WordPress - Experience using Git or other version control systems - Basic database knowledge (e.g. MySQ

Lead Android Developer | Fintech | Up to £110,000 | Leeds, Hybrid (2 Days) The Company We are working with a international Fintech Start-Up in the payments space who are completely changing the game for how payments work for small businesses. They have built a platform that massively reduces costs g

Data Scientist (GenAI) - Developer Productivity - Github Copilot A highly advanced engineering function requires a Data Scientist/GenAI Specialist to join their team. They are investing heavily in Generative AI and modern engineering tools to improve productivity, quality, and software delivery at s

AI Product Developer | £400 - £500 We're working with a high-velocity enterprise AI innovation foundry on this exciting opportunity. They are at the forefront of engineering intelligent ecosystems that transform how modern enterprises operate through cutting-edge Generative AI. This is a high-octane

Architecture & System Design (Must-Have) Proven experience designing large-scale distributed systems Microservices architecture Event-driven architecture High concurrency and scalability patterns Strong knowledge of: System trade-offs (consistency vs availability, latency vs throughput) API desi

Full-time, permanent Based in the UK, with offices in Edinburgh, Newcastle, Leeds, Manchester and London Flexible home, office or hybrid working available. You’ll need to be within 30 miles of one of our offices. What You Get Work on large-scale Flutter apps used by global brands. Complex builds, no

The Trust has recently made significant investment in new Data Warehouse systems, complimented by new Business Intelligence reporting tools. We are looking for an experienced Information Developer to join our busy and highly skilled team to further develop and maintain the data warehouse and reporti

About The Role FDM is a global business and technology consultancy seeking a Junior Appian Developer to work for our client within the public sector. This is initially a 6 month contract with very good prospects to extend and will be a hybrid role that will be based in Leeds. Our client is seeking a

Job Title: Java Developer – Developer Experience Platform - Sheffield Job Description Join a collaborative engineering team building a modern Developer Experience platform that helps control owners and development teams manage and view their compliance with software development controls. You will wo

We are recruiting for a Senior Java / Kotlin Engineer. On-site: 2 dpw in Leeds Or London Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated t

We are recruiting for a Senior Java / Kotlin Engineer. On-site: 2 dpw in Leeds Or London Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Who We Are AND Digital are a tech company focused on accelerating digital delivery and dedicated to

Role: Kotlin or Java Developer Type: Contract (inside IR35) Location: Sheffield, UK Required Skills & Experience Strong experience in Kotlin or Java with the ability and willingness to work across both where required Experience developing REST APIs and working with frameworks such as Spring Soli

SheffieldHybrid - 60% office 40% home Duration: 30/11/2026 Rate £418 MUST BE PAYE THROUGH UMBRELLA Required Role Description: Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin) Experienced in at least two or three of the following: API development, SQL/databases

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that trans