Location: Hybrid (Monument Place)Reporting to: Head of Data & AnalyticsHelp Build the Data Foundations of GTR's FutureAre you passionate about designing data platforms that enable better decision making, advanced analytics innovation at scale?At GTR,we'relooking foranData Architect to play a pivotal role in shaping the future of ourDataHubplatform. This is an exciting opportunity to influence how data is structured,governedand optimised across one of the UK's largest trainoperatingcompanies, ensuring our data ecosystem can support everything from operational reporting to machine learning solutions.You'lljoin our growing Data & AI function at a critical point in our data transformation journey, helping to define the architecture that underpins smarter decisions, improvedperformanceand long-term business success.About the RoleAs a Data Architect, you willbe responsible fordefining and assuring the logical and physical data architecture of GTR'sDataHubplatform.Working across a complex data landscape of more than 300 business systems, over 50 integrated data sources and 40+ data products supporting over 2,000 daily users,you'llensure data is structured,scalable and governed to support both current and future business needs.You'llprovidearchitectural leadership and expert guidance across the platform, helping teams design efficient,sustainableand cost-effective solutions while ensuring the platformremainsrobust enough to support operational reporting, analytics, machinelearningand AI workloads.You'llalso playan important rolein developing GTR's internal data architecture capability and working with industry-wide initiatives to ensure our data architecture evolves in line with the future of the UK rail industry.What You'll Be DoingDefining andmaintainingthe data architecture roadmap for theDataHubplatform.Designing and governing common data models, conformeddimensionsand shared datasets.Providing architectural oversight of ETL/ELT pipelines, data ingestionpatternsand data partitioning strategies.Applying architectural best practices to new and evolving business requirements.Identifyingopportunities to reduce data duplication, improve efficiency and optimise storage costs.Monitoring platform performance and recommending architectural improvements that enhance scalability and usability.Ensuringappropriate separationof workloads so that experimentation and innovation activities do notimpactcritical reporting services.Providing architectural assurance and guidance to data engineering,platformand analytics teams.Collaborating closely withthePlatform Lead,InsightLeadand businesssubject matter expertsto ensure theDataHubplatform continues to support evolving data,analyticsand AI capabilities.Supporting GTR's alignment with wider rail industry data initiatives and future data standards.What We're Looking ForWe'relooking for a strategic thinker who combines strong technicalexpertisewith a practical approach to designing enterprise-scale data solutions.You Will Bring:Experience as a Data Architect, Senior DataEngineeror similar architecture-focused role.Strongexpertisein data modelling, data warehousing and modernlakehousearchitectures.Experience designing and supporting enterprisescale analytical data platforms.A deep understanding of data architecture principles,governanceand scalable platform design.Experience working with moderncloudbaseddata technologies, ideally including Microsoft Fabric and related Microsoft data services.Strong problem-solving skills with the ability to balance immediate business requirements with long-term architectural sustainability.Experience designing efficient data structures that support reporting, analytics, machinelearningand AI use cases.The ability toidentifyinefficiencies, simplify complex data landscapes and drive optimisation opportunities.Excellent communication and documentation skills, with the ability to explain architectural concepts to both technical and non-technical audiences.A collaborative approach with the confidence to provide expert guidance and challenge existing ways of working whereappropriate.QualificationsDegree in Computer Science, Data Science, Statistics, Mathematics or a related discipline, or equivalent practical experience.Why Join Us?This is a unique opportunity to help shape the architecture that powers GTR's data-driven future.You'llwork at the heart of a modern data environment, influencing how data is managed and consumed across the organisation while helpingestablishthe foundations for advanced analytics, machinelearningand AI innovation. Your work will directlyimpacthow thousands of users access trusted data and insight every day.Our culture is built around being Fair, Accountable, Collaborative, Transparent and Open-Minded, while ensuring everyone feels Valued, Respected and Safe. We believe diverse perspectives create better outcomesandwe'recommitted to building an inclusive environment where everyone can thrive.“I’m a Thameslink passenger host and team leader based at Luton station and I’m currently doing a Level 3 Supervisor apprenticeship so that I can improve my skills even further. I was hesitant to do the apprenticeship at first because of my age – I left school over 60 years ago without any qualifications! It’s been hard to get back into the routine of learning again.”“It was my brother’s suggestion to join the railway. He was already working in the industry and knew I had some university bills to pay off so told me to give it a go, get out of debt and see what I wanted to do next. After a while, it just felt like actually – this is exactly where I’m meant to be. I’m part of a great team and the on-board department as a whole are brilliant to work with. I feel at home here.”Tonderai Matizha-JohnsonArea Operations Manager“When I saw that GTR was advertising places for its apprenticeship scheme I looked into it straight away because I thought it was a great opportunity to learn whilst getting real life experience in a 9-5 job. I applied for a level three business administration apprenticeship and was thrilled to find out I had a place on the course! I was so excited that I didn’t even mind it was based 250 miles away from where I lived.”“Working for GTR is very rewarding and fulfilling. You really feel like you're making a difference to customers, no matter what role you're in as at the end of the day they're the heart of our business. I’ve had lots of opportunities to explore other aspects of the business including supporting our station staff and gaining my Train Dispatch Licence which has been enriching for my experience here.”“If you’ve always had an interest in rail, or maybe you’re just curious to find out what working in the railway might look like, GTR is the operator to go for. Not many companies do an official work experience program and this unique opportunity will give you a good grounding with varied activities to help you find the best place in the railway for you. It certainly did it for me.”Nathaniel OwenStation Manager“I work as part of the Fleet Infrastructure team, which means ensuring our 18 Engineering locations operate safely and efficiently. We oversee all building and track maintenance works as well as various minor and major projects across the network.”“I started in a small ticket office back in 1996 and have continued to work my way up ever since. A previous manager told me about a job he’d seen advertised for a trainer. ’d never considered a job in HR or mentoring before then, but he said I’d be perfect for it and I haven’t looked back since!”Zoey HudsonHead of Talent, Diversity and Inclusion“Since April, I’ve helped to support our Kickstart Scheme. It’s been a really rewarding process to be part of because I know first‑hand how tough it can be to find work once you’re out of it.”“I love the freedom that comes with being a train driver. Obviously, there are rules and regulations to follow as well as duties and commitments to carry out, but in a way, you’re sort of your own boss, which is nice.”“I’m a Thameslink passenger host and team leader based at Luton station and I’m currently doing a Level 3 Supervisor apprenticeship so that I can improve my skills even further. I was hesitant to do the apprenticeship at first because of my age – I left school over 60 years ago without any qualifications! It’s been hard to get back into the routine of learning again.”“It was my brother’s suggestion to join the railway. He was already working in the industry and knew I had some university bills to pay off so told me to give it a go, get out of debt and see what I wanted to do next. After a while, it just felt like actually – this is exactly where I’m meant to be. I’m part of a great team and the on-board department as a whole are brilliant to work with. I feel at home here.”
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Data Architect in London employer: Govia Thameslink Railway
Govia Thameslink Railway is an exceptional employer, offering a dynamic work environment where customer service excellence is at the forefront. With opportunities for training and apprenticeships, employees can grow their skills while enjoying a supportive culture that values teamwork and proactive service. Located in a vibrant area, our stations provide a unique chance to engage with the community and make a real difference in people's travel experiences.
