Intermediate Software Developer jobs in West Sussex

HPC Software Developer Crawley, West Sussex Excellent Package + Bonus Structure + Relocation Support + Hybrid Working + Healthcare + Life Insurance + Pension + Other Company Benefits Do you have a background in Computer Science, Physics or Mathematics with experience of high-performance software or application development? This position will see you join a global energy technology business...

You will be responsible for generating new business while managing and expanding existing client relationships. The role suits a confident, customer-focused sales professional with experience selling complex B2B software solutions. Key Responsibilities: - Drive new business opportunities and achieve sales targets across software and associated services

Software/SAAS Business Development Manager - £50,000+ OTE - Remote Dante provides training software to commercial training providers across the UK. We've grown our customer base from 25 to 120+ clients in four years and are expanding our sales team to support continued growth and international expansion planned for 2026. We're looking for a Business Development Executive to join our small team,...

Software Developer (Web & Internal Tools) Remote-first | UK-based up to £50,000 PA Dependent on experience We're supporting a well established UK adventure business that has recently brought its website development in-house and is now modernising internal systems and tooling. This is a hands on role in a small, trusted tech team, working across a customer facing web platform and the internal...

Software Engineer – PHP & Golang Fully Remote – Within UK PHP / Golang / JavaScript £60,000-£65,000 I've recently partnered with a leading Prop-Tech business in London who are looking to add a Software Engineer to their team who specialises in PHP & Golang! The company have seen rapid success over the past 10 years and have built an advanced platform used by their expanding portfolio of...

About Prighter Prighter is a fast-growing LegalTech company building productised services and SaaS solutions for compliance with data protection as well as AI & digital governance regulations. With the mission to enable companies around the world to comply with regulatory requirements for their digital business, our services and SaaS solutions guide our global clients through the increasingly...

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...

R&D Engineer – Special Purpose Machinery Location: Crawley, West Sussex Salary: Competitive + Excellent Benefits Are you a bright and ambitious engineer looking to develop innovative technologies within the field of special purpose machinery? Our client, a leading designer and manufacturer of high-performance industrial equipment, is seeking an R&D Engineer to join their growing research and...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

You should be comfortable with most of our core technologies:

SOFTWARE ENGINEER REMOTE (OPTION TO RELLOCATE) £110K + EQUITY THE COMPANY This innovative AI startup is redefining safety and reliability in AI models. While competitors like GPT and DeepMind struggle with hallucinations and illegal content generation, this company adds safety control layers to ensure AI outputs are trustworthy and compliant. Working with high-profile, they're building AI...

You will design and deploy robust frontend client, backend services, infrastructure automation, and cloud-native solutions by utilising your software development knowledge and your DevOps proficiency across AWS and GCP.

Key Responsibilities - Design, implement, and maintain software for nuclear systems, ensuring compliance with safety and regulatory standards. - Develop software for reactor control, monitoring systems, data acquisition, simulation, and predictive analytics. - Collaborate with multidisciplinary teams including nuclear engineers, electrical engineers, and safety specialists. - Apply best...

You will design and build APIs that enable products, partners and AI services to work together, including: Building RESTful APIs using C# .

You will likely bring: Strong experience building backend services in C# .

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.

Job Title: Full-Stack Developer (Asset & Carbon Monitoring Software) Salary: £55,000–£80,000 (depending on experience) Location: Fully remote (UK) You know that decarbonisation isn't a slogan - it's a systems problem. If the data's wrong, if the assets aren't understood, if the platform can't scale, then carbon reduction becomes guesswork. This role is for a Full-Stack Developer who wants...

Job Description HPC Software Developer Crawley, West Sussex Excellent Package + Bonus Structure + Relocation Support + Hybrid Working + Healthcare + Life Insurance + Pension + Other Company Benefits Do you have a background in Computer Science, Physics or Mathematics with experience of high-performance software or application development? This position will see you join a global energy...

R&D Engineer – Special Purpose Machinery Location: Crawley, West Sussex Salary: Competitive + Excellent Benefits Are you a bright and ambitious engineer looking to develop innovative technologies within the field of special purpose machinery? Our client, a leading designer and manufacturer of high-performance industrial equipment, is seeking an R&D Engineer to join their growing research and...

A growing engineering organisation at the forefront of advanced manufacturing is looking for a Software Engineer whose primary focus will be the development of in-house software tools and their integration with manufacturing hardware and equipment. The role supports automation, data capture, and continuous improvement across production operations. Based in Crawley, this is a great opportunity to...

Job Description A growing engineering organisation at the forefront of advanced manufacturing is looking for a Software Engineer whose primary focus will be the development of in-house software tools and their integration with manufacturing hardware and equipment. The role supports automation, data capture, and continuous improvement across production operations. Based in Crawley, this is a...