fullstack developer contract jobs in South Yorkshire

A fast-growing fintech company is hiring a Fullstack Developer(AI) to help build the next generation of intelligent, personalized financial platforms. This role blends modern front-end engineering with AI-powered workflows, automation, and human-centered design to deliver seamless digital experiences for users across global markets. You'll join a lean, high-impact product and engineering team...

You will be responsible for the end-to-end design, development, and delivery of a critical, high-scale digital service. Leveraging your expertise across the full technology stack, you will build robust solutions that meet stringent standards for security, performance, and reliability.

Benefits - 39 days holiday - 9% pension contribution - Stock Options This is your chance to perform the job you love and make a difference in society whilst doing it! Help this one-of-a-kind Social Good platform change the world by developing this one-of-a-kind eCommerce solution. The Company - $120m VC-backed Scale-Up - One of the fastest-growing companies in the world - 'Fast Company' Most...

Front-End Contractor (React / Next.js) Location: Remote (UK based candidates only) Contract: Outside IR35 Day Rate: Up to £400 per day I am currently looking for an experienced front-end developer to help deliver key product features at speed for one of my start up clients. You’ll work on high-impact UI components and collaborate with design, backend, and AI teams to create interfaces for...

Company Description Cryptoiex, founded in 2019, is an Estonia-based blockchain platform designed to make cryptocurrency trading fast and easy. The platform provides lightning-fast trade execution, dependable digital wallets, and top-tier security practices. With a mission to simplify the exchange process, Cryptoiex actively contributes to the crypto community while driving transformative...

You will be a Senior level App Developer to join an in-house team to help develop and launch two exciting new products that will form a key part of the company proprietary event technology suite. Working closely with the CTO, following clear technical requirements along with an experienced Developer and the Head of department to bring both apps to life, from initial build to live deployment.

Join OSF Digital this year - a globally recognised digital transformation specialist, and be part of our driven and innovative team. As a trusted Salesforce partner for over a decade, we are experts in B2B, B2C, and multi-cloud solutions. We have recently celebrated our 20th anniversary and have been steadily expanding our global presence. We are proud of our many accomplishments, including...

Node.js / JavaScript Developer (Outside IR35) Location: UK Remote (Manchester or London preferred for occasional meetings) Rate: £400 per day (Outside IR35) Duration: 3 months (initial) Start Date: ASAP The Role We're looking for an experienced Node.js / JavaScript Developer to join a 3-month greenfield project, focused on upgrading and modernising an existing system from Perl to...

The Role We're looking for an exceptional Software Engineer / Back-End Developer - a true "super dev" - with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for someone operating at a Principal Engineer or Lead Engineer level. You'll join a small, highly skilled team building a new platform driven by...

Overview AUDITSU is developing a proprietary automation system to explore and analyse mobile applications at scale. We’re looking for an engineer who understands the internals of Android automation frameworks and enjoys solving problems that don’t yet have established answers. This is a 60-day R&D contract with defined outcomes, full technical autonomy, and scope for continued...

Job Description Closing date: 21-11-2025 Funeral Service Crew - 6 Month Fixed Term Contract £12.79 per hour plus benefits Part time 18.75 hours per week, 5 days per week, working a variety of shifts Monday to Friday 8am-8pm - as part of this role, you’ll also be part of the on call rota to cover additional weekends Barnsley S75 1DR No experience needed. You can apply for this job on your...

Senior Technical Business Analyst – Contract (ADM Focus) This one’s all about impact. Our client is bidding on a major programme of work and needs a proven Business Analyst to help shape how applications are built, enhanced, and supported across the business. If you know your way around ADM, this could be the start of something big. Role Overview: - Location: London - Package: £DOE | 6-month...

Front-End Contractor (React / Next.js) Location: Remote (UK based candidates only) Contract: Outside IR35 Day Rate: Up to £400 per day I am currently looking for an experienced front-end developer to help deliver key product features at speed for one of my start up clients. You’ll work on high-impact UI components and collaborate with design, backend, and AI teams to create interfaces for...

You will be a Senior level App Developer to join an in-house team to help develop and launch two exciting new products that will form a key part of the company proprietary event technology suite. Working closely with the CTO, following clear technical requirements along with an experienced Developer and the Head of department to bring both apps to life, from initial build to live deployment.

Join OSF Digital this year - a globally recognised digital transformation specialist, and be part of our driven and innovative team. As a trusted Salesforce partner for over a decade, we are experts in B2B, B2C, and multi-cloud solutions. We have recently celebrated our 20th anniversary and have been steadily expanding our global presence. We are proud of our many accomplishments, including...

Node.js / JavaScript Developer (Outside IR35) Location: UK Remote (Manchester or London preferred for occasional meetings) Rate: £400 per day (Outside IR35) Duration: 3 months (initial) Start Date: ASAP The Role We're looking for an experienced Node.js / JavaScript Developer to join a 3-month greenfield project, focused on upgrading and modernising an existing system from Perl to...

Company Description Cryptoiex, founded in 2019, is an Estonia-based blockchain platform designed to make cryptocurrency trading fast and easy. The platform provides lightning-fast trade execution, dependable digital wallets, and top-tier security practices. With a mission to simplify the exchange process, Cryptoiex actively contributes to the crypto community while driving transformative...

A fast-growing fintech company is hiring a Fullstack Developer(AI) to help build the next generation of intelligent, personalized financial platforms. This role blends modern front-end engineering with AI-powered workflows, automation, and human-centered design to deliver seamless digital experiences for users across global markets. You'll join a lean, high-impact product and engineering team...

Overview AUDITSU is developing a proprietary automation system to explore and analyse mobile applications at scale. We're looking for an engineer who understands the internals of Android automation frameworks and enjoys solving problems that don't yet have established answers. This is a 60-day R&D contract with defined outcomes, full technical autonomy, and scope for continued...

You will be responsible for the end-to-end design, development, and delivery of a critical, high-scale digital service. Leveraging your expertise across the full technology stack, you will build robust solutions that meet stringent standards for security, performance, and reliability.