developer python javascript jobs in Cardiff

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all...

Python Developer Duration: 6-month contract Day Rate: £425 (Outside IR35) Location: Remote - UK Based Client Start Date: ASAP Are you actively looking for a new Python contract? A fast-growing AI start-up is looking for Python engineers to help deliver AI-driven workflows and virtual agent systems for their customers. This is a short-term, hands-on role to support their implementation team...

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 —...

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.

Python Scraping Engineer Location: Fully remote Salary: £40,000 – £60,000 The Opportunity I'm looking for a Python Scraping Engineer to join a growing AI-focused data team. What You’ll Do - Design, build, and maintain large-scale production web scrapers - Tackle advanced anti-bot and detection systems - Work with browser automation and dynamic, JavaScript-heavy sites - Improve scraper...

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.

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...

📍 Hybrid (UK-wide with client site visits) | 💷 Competitive Salary + Benefits Our client is a mission-led consultancy delivering modern, secure software solutions to the UK Government and Defence sector. They’re expanding their development teams and are looking for talented Python Developers who want to make an impact on meaningful projects. You’ll be joining a high-trust, agile environment,...

Salary: £40-£45k (DOE) Reporting to: Technical Director Location: Hybrid or fully remote (UK only) Role type: Full time Who we are We’re Field — a design-first Shopify Plus e-commerce agency working with premium, high-growth brands. We’re a small, senior, tight-knit team of designers and developers who genuinely enjoy working together, and our retention rate (both team and clients) reflects...

You must speak, write and be able to understand fluent English. - Deep knowledge and regular usage of Firebase suite, especially Firestore. - Strong proficiency in TypeScript and modern JavaScript (ES6+).

You must enjoy constantly learning and researching to improve your level of expertise.

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...

🚀 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...

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly...

Web Developer Location: Remote Role Overview Our clients are seeking an experienced Web Developer to build, maintain, and enhance their web-based platforms. The role involves working closely with internal teams and third-party partners to deliver robust, scalable solutions that support MTS's growing digital and e-commerce footprint. Key Responsibilities - Collaborate with technical and...

Job SummaryAviation. It connects our world, brings people together, provides opportunities, accelerates economic growth, and is just so very cool! Come work for NAVBLUE, a leading services company owned by Airbus, dedicated to Flight Operations, Air Traffic Management solutions and services for airlines, airports, and Air Navigation Service Providers. We combine aircraft manufacturer expertise,...

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...

You will collaborate closely with cross-functional teams, including product management and UX/UI, to ensure that our software solutions meet business and customer needs.

You will be responsible for driving culture through your craft and be keen to take on line management responsibilities.

You will own the engineering vision and execution of Keepnet’s core platform, operating across the UK, EU, US, UAE, and Canada, supported by distributed offshore and nearshore teams.

You will not be expected to do everything yourself. Success in this role will be measured by platform reliability, delivery predictability, team health, and customer impact.

Senior Python Scraping Engineer Location: Fully remote Salary: £60,000 – £70,000 The Opportunity I'm looking for a Python Scraping Engineer to join a growing AI-focused data team. What You’ll Do - Design, build, and maintain large-scale production web scrapers - Tackle advanced anti-bot and detection systems - Work with browser automation and dynamic, JavaScript-heavy sites - Improve...

📍 Hybrid (UK-wide with client site visits) | 💷 Competitive Salary + Benefits Our client is a mission-led consultancy delivering modern, secure software solutions to the UK Government and Defence sector. They’re expanding their development teams and are looking for talented Python Developers who want to make an impact on meaningful projects. You’ll be joining a high-trust, agile environment,...