senior sql developer jobs in County of Cardiff

We are seeking an experienced T-SQL Developer to join the Synechron team. This position is predominately remote with occasional travel to Sheffield working with a global energy firm. The ideal candidate will have strong proficiency in Transact-SQL, with a solid understanding of database design, performance optimisation, and advanced SQL features. This role requires problem-solving skills,...

You will be a versatile and proactive Senior Full Stack Developer to join their team and help bridge the gap between legacy systems and modern application development.

You will be working on true innovation in an ethical industry – if that sounds of interest to you then please apply, or reach out to thomas.

Senior Data Analyst | SQL | Python | Amplitude | Remote Europe | Up to £100K Maze is partnering exclusively with a rapidly scaling, AI-powered technology company in the digital economy to hire a Senior Data Analyst. This is a high-impact role for a data professional who thrives on uncovering insights, driving experimentation, and shaping strategy through data. Key Requirements - 5+ years of...

Senior Data Engineer (SQL BigQuery GCP) London / WFH to £110,000 Are you a data technologist with Media Streaming experience? You could be progressing your career in a senor, hands-on role at one of Europe's most successful streaming and social media platforms. What's in it for you: - Salary to £110k - Employee stock options plan - Flexible vacation and public holidays allowing you 35 days of...

Junior Technical Support Analyst 💻🛟— UK Remote Love solving problems and helping customers? Join our Service Centre team to keep schools running smoothly with clear, friendly support and solid troubleshooting. Homeworking with occasional office visits. Senior Technical Support Analyst… What you’ll do 🔧 - Triage, troubleshoot, and resolve tickets in Zendesk, keeping notes crisp and hitting...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering to have an impact from day one, and develop their systems. In this role, you'll design highly complex systems and...

Senior Java EFX Platform Developer Location: Fully Remote (UK-based) Contract: 12 Months (likely extension) Industry: Investment Banking / FX E-Trading The Opportunity We're partnering with a leading investment bank on a major greenfield build - a brand-new, in-house FX E-Trading platform. This multi-year programme is at an early stage, offering the chance to help shape architecture,...

Senior Full-Stack Web Developer | Legal EdTech | Remote Join a leading EdTech provider delivering innovative online learning as they embark on a major transformation. As a Senior Full-Stack Web Developer, you’ll design, build, and modernise scalable web applications that power our learning management systems. You’ll work across ASP.NET Core, React, C#, JavaScript, and Azure. What you’ll do: -...

Senior Backend Developer Location: London - 1x a month Salary: Up to £95,000 (D.O.E) + benefits Fruition Group working with a leading Insurtech unicorn on a mission to transform the insurance industry. Their products have already generated millions in revenue, and now they're investing heavily in new innovations that will shape the sector for years to come. This is an exciting opportunity for...

We are looking to speak with high performing Senior Sales Development Representatives for our client, a growing SaaS company. If you are looking to take the next step in your career and have Enterprise SDR experience, please apply. Key Responsibilities: - Execute highly personalised, multi-channel outbound campaigns to generate qualified meetings for the Enterprise Account Executive team. -...

You will be contracted to the NRW office in Bangor and a suitable hybrid working pattern will be agreed on appointment. Any regular face to face meetings or training will be planned in advance. Interviews will take place through Microsoft Teams between 3 - 10 December 2025 Successful applicants will be subject to a satisfactory Disclosure and Barring Service Check (DBS) check.

Role: - Power Platform Senior Developer Job Summary – Design, develop Power Automate workflows including the creation of triggers, actions, conditions, and loops to automate business processes. Create and configure connectors and integrations between various systems and applications to enable data flow and automation. Power Shell scripting is preferred as well. Also, we should have experience...

Job Description Your new company Join a purpose-driven organisation at the heart of a thriving community, where technology is being harnessed to transform lives. This values-led public sector organisation is embarking on a bold digital transformation journey, with a clear mission to deliver outstanding services to end-users through innovation and excellence. With a strong commitment to social...

Senior Golang Developers x 2 (React/AWS) - Remote - New Roles! A leading organisation in the Gloucestershire area requires a number of Senior Golang Developers to join its growing team. Suitable candidates will have strong Golang experience coupled with both React and AWS. in summarym the successful candidates will have the following: - Strong Golang experience - Proficiency in React and...

Senior Software Developer required by a successful software company with an international client base. The Senior Software Developer will be responsible for full stack development with C# and React as part of the ongoing evolution of the company's core SaaS product as they evolve a traditional monolith architecture towards a modular monolith. Key experience - Extensive C# experience - SQL...

You will have the opportunity to work on various modern web applications across a variety of platforms focusing on the backend. Should you choose, this role will allow you to expand your leadership capabilities as you progress in the company. The team tend to go into the Oxford office once a month.

⭐ **Senior Full Stack Developer with UI bias- making the world a better place! I'm working with a global software house making the world a better place! . This isn't just another dev role - it's a chance to impact real-world justice through technology. 🚀 **Why Join?** • **Technical modernization project** - leading the migration from legacy MVC to React architecture • **Newly created role** -...

Senior Thingworx Developer Can be based anywhere in the UK - £54,000 + excellent benefits My client is growing their PLM development team and looking for an experienced Thingworx Developer to design and enhance digital tools that connect engineering, data, and manufacturing across their business. You’ll: - Develop dashboards, interfaces, and database integrations - Build and support RESTful /...

Junior Technical Support Analyst 💻🛟— UK Remote Love solving problems and helping customers? Join our Service Centre team to keep schools running smoothly with clear, friendly support and solid troubleshooting. Homeworking with occasional office visits. Senior Technical Support Analyst… What you’ll do 🔧 - Triage, troubleshoot, and resolve tickets in Zendesk, keeping notes crisp and hitting...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering to have an impact from day one, and develop their systems. In this role, you'll design highly complex systems and...