Full Stack Software Developer jobs in Portsmouth, Calderdale

Remote | Full-Time About Us Medify is a mission-driven EdTech company widening access to medicine and healthcare careers. Our platform supports thousands of learners preparing for high-stakes admissions exams, and our engineering team plays a critical role in delivering reliable, scalable, and high-quality learning experiences. Medify Engineering is a team of ten engineers across two teams,...

You will be a key part of the project teams going forward at this very exciting time for the company. The ideal candidate will have commercial experience developing and testing complex Angular modules and integrating them with backend services via REST APIs. Responsibilities & Duties

Full Stack Engineer (Java, React, AI/ML/LLM/SDK) – Cutting-Edge Series B scale up Location: Remote EU - Spain Salary: £70K - £110K About: We are seeking a Full Stack Engineer with a proven track record in building and scaling applications powered by Large Language Models (LLMs). This role requires deep expertise in Java, React, and modern AI/ML development, including LLM frameworks, SDKs, and...

You will have the opportunity to be part of a global high-performing dynamic software team, doing what you do best. The role is focused on designing and building the best solutions for our users in over 120 countries, whilst maintaining best practices in software development.

Accelerant is building a new platform that will serve as the backbone of how risk is exchanged in the future. The Product & Technology team is looking for a Full Stack Software Engineer who is passionate about building high quality software systems that are valued by customers. If you join our team, here are some of things you'll be doing: - Working closely with peer engineers, product...

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.

Senior Full-Stack Engineer – TypeScript / React / AWS Up to £80k | Fully Remote (UK) Tech Stack: TypeScript, Node.js, React.js, AWS Slight backend lean We're on the hunt for a hands-on Senior Engineer to join a fast-moving team delivering real, production grade systems. This isn't R&D or proof-of-concept work, they're shipping cloud-native, AI-enabled products that customers actually...

Senior Full-Stack Engineer Fully Remote | UK Salary: Up to £100,000 Neulinx have partnered with a fast-growing B2B SaaS product company to hire an experienced Senior Full-Stack Engineer to join their engineering team at an important stage of growth. This is a hands-on senior role suited to someone who enjoys building high-quality product features, taking ownership of complex systems, and...

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...

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...

Job Description Our client is a rapidly growing business designing some of the most innovative and interesting applications for the marine industry. If you are a meticulous individual with a passion for working on cutting edge projects, this could be ideal for you.Senior Software EngineerMarine Defence applicationsPortsmouthPermanentRole OverviewWe are looking for a talented software engineer to...

You will be working closely with the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will:

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.

Software Engineer – £65,000–£85,000 + Equity – Remote (UK) - London office if preferred The Opportunity Join a fast-growing, AI-native software company building workflow automation tools used daily by thousands of professionals across people-heavy industries. The platform removes manual, repetitive work through AI, automation and thoughtful product design, helping teams move faster and focus...

Senior/Lead Software Engineer – Fully Remote (UK) A global B2B SaaS technology business is building out its European engineering hub and is hiring multiple Senior / Lead Software Engineers (JavaScript) to develop and enhance a mission-critical platform used internationally. These are hands-on individual contributor role with strong ownership — ideal for engineers who enjoy building high-quality...

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...

Senior Full Stack Engineer Remote (UK) | Full time London office available for optional in person collaboration We're looking for an experienced Senior Full Stack Engineer to join a small, highly skilled team building a next generation Financial Services Regulatory Compliance platform. This is a hands on role where you'll work across the stack, leading frontend development with React and...

Business Development Manager - Electric Vehicle Charging into Hospitality Salary - £45K - £50K + Uncapped Comms + £6,500 Car Allowance + Share Options Scheme Field Based / Work from home in the UK Your New Employer This is a high-growth EV charging business with a genuinely different approach - not just in what they install, but in how they win and keep customers. They own their own software...

You will be the human intelligence guiding the AI tools, ensuring that our platform is robust, bug-free, and user-friendly.

You should be comfortable recording tests (Codegen), reading the resulting TypeScript/JavaScript, and using AI to tweak it.

You will manually test new features with a critical eye, looking for UX quirks, logic gaps, and edge cases that scripts can't catch.

Full Stack Engineer (AI & Cybersecurity Startup) - EU Remote We're partnering with a well-funded AI startup (stealth for now) that's building at the intersection of LLMs and cybersecurity, and we're looking to connect with exceptional Full Stack Engineers across the EU. This is an early engineering hire with huge ownership, high autonomy, and the chance to shape a modern product and...