web application developer jobs in Cardiff

We are looking for security professional to manage, implement and optimize web app Firewall and security solutions. Configure, deploy, and maintain web app Firewall. Analyse web traffic patterns to identify, mitigate and prevent attacks. Collaborate with teams to ensure secure and seamless delivery of web apps. Conduct and maintain security documentation, dashboards for configuration and...

Full Stack Engineer - Fully Remote - £60,000 + Benefits About the Company We’re a global education-focused organisation offering accredited online training. As an employee-owned company, we’re dedicated to quality, accessibility, and improving learning experiences worldwide. Role: Full Stack Web Developer We’re looking for a developer to help build and improve our website, student dashboard,...

Please note: applications via EasyApply will not be considered. To apply, email your CV & portfolio to careers@tefl.org Department: Technology Reports to: Head of IT / Managing Director Location: Remote (UK-based) Contract: Full-time, Permanent About Us The TEFL Org is the leading provider of accredited TEFL (Teaching English as a Foreign Language) certification courses. With a global...

Role’s Responsibilities - Design, develop, and maintain end-to-end web applications using Python, JavaScript (Node.js/React), and MongoDB. - Build and deploy microservice-based architectures aligned with 12-Factor App principles, ensuring scalability, maintainability, and resilience. - Collaborate with product managers, designers, and other engineers to translate business requirements into...

Most “web developers” can’t do this job. Why? Because most have only ever built sites using templates WordPress themes, Shopify stores, Wix layouts. But Bounce? We didn’t touch any of that. Every single line of code was written from scratch. The backend, the frontend, the pages all bespoke. We’ve built a fully custom third-party ticketing platform to compete with Eventbrite, Dice, and...

We are seeking a skilled web developer that will help us quick start our website MVP on Lovable (AI platform). We might decide later to whether stay in the platform on move to another environment. The ideal candidate will have a strong background in web development and have experience using AI web development apps Deliverables - Develop and maintain websites using Lovable - Ensure responsive...

Application Development Manager - MS dynamics 365, Power Platform Remote with occasional travel £65,000 - £74,000 + exceptional pension + package Fruition are recruiting an Applications Development Manager for a tech for good organisation who make a genuinely positive impact on people's lives. This role will play a key role at a crucial time for the organisation as they invest in their IT...

Application Development Manager (D365 & Power Platform) Remote (Travel to London or Newcastle office less than once a month) £52,737–£66,197 (Outside M25) / £58,409–£71,869 (Within M25) £7,500 RRA Benefits Looking to move a contractor doing this role into a strategic position elsewhere? Reporting to Shuaib, Head of Engineering, this is a great opportunity to take ownership of D365 and Power...

App Developer (6-Month Contract) Location: hybrid - 1-2 times onsite a month for meetings in Birmingham. Start Date: January/ February Contract Duration: 6 Months (Outside IR35) About the Role: On behalf of our client, we are seeking a talented App Developer to design and build a fully functional e-commerce mobile application for our client retail business. The app will be available for...

🚀 Mobile Developer 📍 Location: Remote, must be based in the UK (occasional office visits in Exeter) 🔒 Security Clearance: Must be SC Clearable Are you a skilled Mobile Developer with a passion for building high-quality apps using Flutter? Do you have hands-on experience with Android or iOS platforms and a desire to work on impactful solutions? If so, we’d love to hear from you. Join our...

You will play a crucial role in designing and implementing scalable, efficient integration solutions using a range of data formats and technologies, including XML, JSON, and CSV. As an expert in XML tooling, XSLT, and data transformation, you will be responsible for ensuring data accuracy, performing complex transformations, and supporting integration and migration processes.

You will be required to complete the exam in a specific timeframe but at your convenience.

Ready for a challenge? Then Just Eat Takeaway might be the place for you. We’re a leading global online delivery platform, and our vision is to empower everyday convenience. Whether it’s a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across...

Would you like to join a cyber security SaaS company at the forefront of vulnerability scanning and security research? Do you have experience in a software support role for a SaaS or digital product company, along with strong experience web app and infrastructure technologies? If so, please read on and apply. About AppCheck: AppCheck develops information security software for its end-user...

We’re looking for an Application Support Engineer to join a fast-paced tech environment where reliability, automation, and performance are everything. You’ll play a key role in maintaining and improving a complex application landscape that powers mission-critical services — ensuring uptime, scalability, and compliance at all times. This role suits someone who thrives in a mixed systems...

You will strategise the development and deployment of enterprise applications, ensuring they align with our global business objectives and technological advancements.

You will be responsible for optimising the performance and security of these applications, thereby enhancing business processes and safeguarding critical data.

You will work to embed security across the SDLC pipeline, including the integration and management of SAST/DAST/SCA/code scanning tooling (Snyk and Gitlab).

You will also work with the development team to offer guidance and to provide security training, and will look to continuously develop and improve the already well-established security champions programme.

You will be customer facing and support other customer-facing colleagues to deliver enhanced levels of sales growth whilst helping to define and extend the product range. Key skills and experience required for Field Applications Engineer - Relays / Connectors, based in West Sussex:

We are working closely with an Oxford headquartered medical imaging company, looking to revolutionise the 3D x-ray market with at point-of-use technology. They are growing rapidly across UK, Europe and in the US. Currently searching for a Clinical Product Specialist. The role would be responsible for the clinical promotion and ensuring customer satisfaction of the clients Medical and Veterinary...

Job Description My client is looking for a Senior Schneider Applications Engineer. Engineer Schneider BMS software packages, ensuring quality, consistency, and compliance with project specifications. Develop Schneider BMS graphics packages, creating intuitive, user-friendly interfaces aligned with client requirements. Support and mentor other members of the applications team as they learn and...