Python Developer jobs in Southampton

We are currently recruiting full stack developers to join a trading technology team at a leading investment firm. This team is responsible for building a new front-office trading platform used directly by traders and quants. These roles are best suited for candidates with experience in full stack development using React and Python and particularly those who have built trading platforms from the...

You will be joining a fast growing technology company building a production grade platform that enables advanced AI driven products.

You will have real ownership, influence over technical decisions and the space to build things the right way.

You will be trusted to take responsibility across the stack, including

We’re expanding our engineering team and hiring a Senior Python Software Engineer to help own and develop an established trading-related application. The system runs in production, processes high-frequency real-time data, and needs careful performance engineering and disciplined testing to keep latency and reliability where they should be. You’ll take meaningful ownership day-to-day, partnering...

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

Software Engineer (Contract) – Python / FastAPI 6 Month Contract - Fully Remote Daily Rate: £500 Outside IR35 Contact: Matthew.Makranczy@forsythbarnes.com We're looking for experienced AWS Software Engineer (contractors) to join an established platform engineering team and help take a proof-of-concept Identity & Access Management (IAM) system into production. This is a hands-on engineering...

About TriloDocs TriloDocs is a growing company at the intersection of technology and life sciences. We help pharma and healthcare organizations transform scientific data into clear, structured documents. Our team is passionate about creating intuitive, reliable tools that make a real difference. The Role We're looking for a Mid-Level to Senior Python Developer with a strong STEM background —...

Job Description 💻: GIS Development 🏢: Leading Global Marine Company 🍃: Offshore Wind 📌: Remote - 1 trip per month to the office An established geoscience and offshore energy consultancy is looking for a Geospatial Developer to join its UK-based team, with opportunities to work from Newcastle, Aberdeen, Glasgow or London 🌍 This role is ideal for someone who enjoys turning complex spatial...

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...

At Critical Software we truly believe that our people are what makes us what we are. At the heart of everything we do are our diverse and talented individuals, pushing the boundaries of what´s possible. Working at Critical is more than just a career choice, is more than a business: we're a community with a strong sense of purpose, values, and togetherness. Our engineering excellence ensures that...

Spectrum Geosurvey specialise in coastal geophysical surveys, supporting a wide range of clients in the offshore renewables sector. We have a proven track record delivering the highest-quality hydrographic and geophysical survey data. Spectrum Geosurvey are seeking an enthusiastic and dedicated individual to join our growing team based in our Lymington office. As a Geophysical Data Analyst, you...

BAT is evolving at pace into a global multi-category business. With products like VELO, VUSE and GLO we are on a mission to decrease the health impact of our industry To achieve our ambition, we are looking for colleagues who are ready to Be the Change. Come, join us on this journey! British American Tobacco UK has an exciting opportunity for an UNDERGRADUATE INTERN – Analytical Development in...

You will work right at the core of our R&D team, taking novel models from a whiteboard concept to a production-ready tool that empowers scientists to discover new drugs and engineer next-generation materials. If you crave ownership and want to build technology that actually accelerates scientific discovery, this is your home.

Job Description Senior Verification Engineer – High-Speed Networking We are looking for a Senior Verification Engineer to verify high-speed connectivity IP using UVM and advanced SystemVerilog verification methodologies. The role focuses on functional coverage closure, constrained-random testing, and integration of verification IP (VIP) for next-generation networking protocols. Key...

You will be part of a cross-disciplinary feature team, in addition to being a highly experienced member of our wider Lloyds engineering team delivering change. Your role as a GCP APIGEE specialist involves supporting teams with modern DevOps solutions, curating scalable GCP Cloud Products as IaaC, and building APIGEE/API solutions while modernising the APIGEE gateway.

Location: Remote (UK-based candidates preferred) Employment Type: Full-time Experience Level: Junior / Entry-Level About the Role We’re seeking a motivated Junior Data Scientist who’s eager to turn data into meaningful insights and grow in a dynamic, collaborative environment. This fully remote role is open to candidates based in the UK. You’ll work alongside senior data scientists, analysts,...

Digital IC Design Lead Location: Fareham, Hampshire Salary: Up to £87,000 + bonus Contract: Permanent We’re recruiting for a Digital IC Design Lead on behalf of a high-growth semiconductor organisation operating at the forefront of advanced electronics. This is a senior technical leadership role, offering the opportunity to shape next-generation digital ICs used in safety-critical and...

Database Engineer (PostgreSQL & Python) - MUST BE BASED IN THE UK - Opportunity for a Database Engineer (Junior/Mid/Senior) to join a remote-first, UK-headquartered technology business - Competitive salary between £45,000 - £70,000 + excellent benefits including remote working, autonomy, and the chance to work on an Educational AI platform - Apply online or contact Chelsea Hackett via...

You will work right at the core of our R&D team, taking novel models from a whiteboard concept to a production-ready tool that empowers scientists to discover new drugs and engineer next-generation materials. If you crave ownership and want to build technology that actually accelerates scientific discovery, this is your home.

Electronic Design / Embedded Software Engineer Location: Hybrid / Harpenden, Hertfordshire Salary: £55,000 – £65,000 + bonus (DOE) Hours: 40 hours per week (flexible within office hours) The Opportunity A specialist UK engineering consultancy is looking to hire an Electronic Design / Embedded Software Engineer to work on a wide range of technically challenging products across medical...

You will collaborate with development and application support teams to troubleshoot message flows and resolve integration issues, whilst overseeing capacity planning, scaling and tuning of Solace infrastructure to meet both current and future operational demands, automating wherever possible.