Platform Engineer jobs in Cardiff – Browse 49 openings on RoboApply Jobs

Platform Engineer jobs in Cardiff

Open roles matching “Platform Engineer” with location signals for Cardiff. 49 active listings on RoboApply Jobs.

49 jobs found

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Engine by Starling logo
Full-time|Hybrid|Cardiff, Wales, United Kingdom

Join us at Engine by Starling, where we are committed to collaborating with top banks globally, helping them leverage our innovative technology for rapid growth.Engine, Starling's software-as-a-service (SaaS) division, was established to deliver the cutting-edge technology powering Starling, and has since evolved into a standalone entity. Our exceptional gro…

May 16, 2025
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Monzo Bank Ltd. logo
Platform Engineer

Monzo Bank Ltd.

Full-time|Remote|Cardiff, London or Remote (UK)

Join Monzo as a Platform Engineer and be part of a dynamic team dedicated to building and maintaining robust and scalable platforms. You will work with cutting-edge technologies to enhance our infrastructure and ensure seamless operations across our services.Your role will involve collaborating with cross-functional teams to design, implement, and optimize the platform that powers our banking services. We are looking for individuals who are passionate about technology, eager to learn, and ready to tackle complex challenges.

Mar 5, 2026
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Speechify logo
Full-time|On-site|Cardiff, United Kingdom

Join our innovative team at Speechify as a Software Engineer, Platform based in Cardiff. We are looking for a talented engineer who is passionate about creating cutting-edge software solutions that enhance user experiences and streamline processes. You will work closely with cross-functional teams to design, develop, and maintain our platform, ensuring high performance and responsiveness.

Apr 30, 2026
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Monzo logo
Remote|Remote|Cardiff, London or Remote (UK); London

Join us on our mission to revolutionize banking for all! At Monzo, we are transforming the traditional banking experience into one that is intuitive and user-friendly. Over the past decade, we've expanded our offerings from a prepaid card to a comprehensive suite of banking products, including personal and business accounts, joint accounts, youth accounts for ages 16-17, free kids accounts, and credit cards. Our innovative features, such as early payday and financial education through social media, have led to countless magical moments for our customers. We believe in solving real problems and improving lives through Monzo Location: Cardiff, London, or Remote (UK) | Salary: £95,000 - £130,000 + stock options + [Benefits](https://monzo.com/careers/) **About the Machine Learning Platform Engineering Team at Monzo:** The Platform Collective is dedicated to building and maintaining the infrastructure, tools, and processes that empower Monzo's tech teams to thrive. Our Machine Learning Platform team plays a vital role in designing, developing, and sustaining the infrastructure and tools that enable our teams to train, evaluate, deploy, and manage Machine Learning models and features effectively at scale. We are a group of backend engineers passionate about machine learning, collaborating closely with ML teams to identify their needs and develop elegantly simple solutions.

Feb 2, 2026
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Monzo Bank Limited logo
TechOps Platform Manager

Monzo Bank Limited

Full-time|Remote|Cardiff, London or Remote (UK)

Join Monzo as a TechOps Platform Manager and lead the charge in enhancing our operational efficiency and technology platforms. You will play a pivotal role in ensuring our systems are resilient, scalable, and secure while driving cross-functional collaboration.

Apr 2, 2026
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Legal & General logo
Full-time|On-site|Cardiff

Join our dynamic team at Legal & General as a Platform Specialist, where you will be an integral part of our innovative retail solutions. In this role, you will support the platform operations, ensuring smooth functionality and optimization of our systems. This is an exciting opportunity to contribute to the ongoing development and enhancement of our digital infrastructure.

Apr 30, 2026
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Engine by Starling logo
Full-time|Hybrid|Cardiff, Wales, United Kingdom

Join us at Engine by Starling, where we are excited to partner with forward-thinking banks globally, empowering them to establish high-growth businesses using our cutting-edge technology.Engine operates as Starling's innovative software-as-a-service (SaaS) division, developed to fuel Starling's growth. Recently, we have transitioned into an independent entity, continuing to deliver exceptional software solutions.Starling has achieved remarkable success, largely due to our proprietary technology developed from the ground up. This robust SaaS platform is now accessible to banks and financial institutions worldwide, allowing them to leverage the pioneering digital features and streamlined back-office operations that have contributed to Starling's achievements.Our engineering team is the heartbeat of Engine, thriving in a dynamic environment focused on creation, innovation, and disruptive technology that keeps us at the forefront of the fintech landscape. We foster a flat organizational structure that empowers you to make impactful decisions, regardless of your role. Collaboration and support are woven into our culture, ensuring you're never alone on this journey!To excel at Engine, we seek proactive individuals who take ownership of their responsibilities—from development and design to knowledge sharing and optimizing processes for superior customer outcomes. Our core values—Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness—guide our mission.Hybrid WorkingWe embrace a hybrid working approach at Engine, preferring candidates who can commute to our Cardiff office for collaborative in-person interactions.About Engineering at Engine by Starling - Explore our engineering careers

Nov 10, 2025
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AECOM logo
Full-time|On-site|Cardiff

Join AECOM as a Highways and Traffic Engineer in Cardiff, where you'll play a vital role in designing and managing innovative transportation solutions. Your expertise will contribute to the development of sustainable infrastructure projects that enhance mobility and safety for communities.

Apr 13, 2026
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AECOM logo
Full-time|On-site|Cardiff

Role overview The Principal Mechanical Engineer at AECOM’s Cardiff office plays a key role in managing mechanical engineering projects across a range of sectors. This position involves providing technical leadership, directing project delivery, and making sure all work aligns with both industry standards and client requirements. Main responsibilities Lead mechanical engineering projects from initial concept to final completion Support and mentor a team of engineers, with a focus on developing junior staff Encourage collaboration with professionals from other disciplines to meet project objectives Drive ongoing improvements in engineering practices and project results

Apr 27, 2026
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dev2 logo
Full-time|On-site|Cardiff

Join Our Team as the Head of EngineeringAt dev2, we are seeking a dynamic and experienced leader to oversee our engineering department. As the Head of Engineering, you will play a pivotal role in shaping our technical strategy, ensuring the successful delivery of projects, and fostering a culture of innovation and collaboration within the team.Your expertise will guide our engineering practices, drive the implementation of best practices, and mentor our talented engineers to excel in their roles. If you have a passion for technology and leadership, we want to hear from you!

Jan 23, 2023
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jobsforhumanity logo
Full-time|On-site|Cardiff

As a Senior Engineer at jobsforhumanity in Cardiff, this position centers on using technical expertise to help build solutions with real impact. The team values new ideas and aims to create products that matter. Role overview This role calls for strong engineering skills and a collaborative approach. The Senior Engineer will contribute to projects that support the company’s mission and help shape the direction of ongoing work. What you will do Apply technical knowledge to develop and improve solutions Work alongside colleagues to deliver projects with purpose Support efforts that drive positive change within the organization Requirements Experience in an engineering role at a senior level Ability to contribute ideas and technical insight to team projects

Apr 30, 2026
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AECOM logo
Full-time|On-site|Cardiff

Join our dynamic team at AECOM as a Senior Highways and Traffic Engineer, where you will play a pivotal role in shaping the future of transportation infrastructure. In this position, you will be responsible for leading the design and implementation of innovative highways and traffic management solutions. Your expertise will contribute to projects that enhance safety, efficiency, and sustainability in urban mobility.As a key member of our engineering team, you will collaborate with multidisciplinary professionals to deliver high-quality results. This role offers an exciting opportunity to work on a diverse range of projects, from large-scale urban developments to critical infrastructure upgrades.

Nov 12, 2025
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Monzo logo
Remote|Remote|Cardiff, London or Remote (UK)

Join us in revolutionizing the banking experience for everyone! At Monzo, we are committed to simplifying finance and making money work better for our customers. Originating as a prepaid card, Monzo has evolved significantly over the past decade, now offering diverse banking solutions including personal and business accounts, joint accounts, youth accounts, and more. Our innovative features, such as early access to funds and robust financial education, ensure that our customers enjoy magical moments in their financial journeys. We focus on problem-solving rather than just selling products, aiming to create transformative experiences for our users . As an Engineering Manager, you will lead cross-functional teams that include Product Managers, engineers, data scientists, and designers, driving impactful outcomes while fostering a culture of inclusivity and excellence.

Feb 2, 2026
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AECOM logo
Full-time|On-site|Cardiff

Are you a recent graduate excited to kickstart your engineering career? AECOM is seeking a Graduate Traffic Engineer to join our innovative team in Cardiff. In this role, you will be involved in various traffic engineering projects, working collaboratively with experienced professionals to develop sustainable transportation solutions.Your responsibilities will include conducting traffic analyses, preparing reports, and assisting in the design of traffic management systems. We are looking for a proactive individual with a passion for engineering and a desire to contribute to impactful projects.

Nov 24, 2025
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AECOM logo
Full-time|On-site|Cardiff

Role overview The Associate Director of Mechanical Engineering at AECOM plays a key part in managing complex engineering projects from the earliest concept stages through to final delivery. The position combines direct technical leadership with hands-on involvement in project work, ensuring quality and consistency throughout each phase. What you will do Lead and mentor a team of mechanical engineers, offering guidance and support as projects progress. Oversee the design, execution, and delivery of projects, maintaining high standards at every step. Build and sustain strong working relationships with clients to support project success. Use expertise in mechanical systems to shape engineering solutions and project outcomes. Location This position is based in Cardiff.

Apr 27, 2026
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Monzo logo
Remote|Remote|Cardiff, London or Remote (UK)

Join us at Monzo on our mission to revolutionize banking and make money accessible for everyone! We are moving away from the complexities of traditional banking and have transformed our offerings significantly over the past decade. From our origins as a prepaid card, Monzo now provides a diverse range of services including personal and business bank accounts, joint accounts, accounts for 16-17 year-olds, free kids accounts, and credit cards. Our users can also save, invest, and manage their pensions all in one place. With our vibrant hot coral cards and innovative features, such as early salary access, coupled with our award-winning customer service and financial education initiatives, we are dedicated to creating extraordinary experiences for our customers. If you're passionate about solving problems and making a positive impact, we would love to have you on our team!

Feb 2, 2026
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Securitas logo
Full-time|On-site|Cardiff

Join Securitas as a Fire & Security Engineer, where you will play a crucial role in ensuring safety and security for our clients. This position offers the opportunity to work with cutting-edge technology while developing your skills in a supportive environment.

Mar 5, 2026
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AECOM logo
Full-time|On-site|Cardiff

Join our dynamic team at AECOM as a Mechanical Engineer specializing in water projects! In this role, you will be instrumental in designing and implementing innovative solutions for a variety of water infrastructure projects. Your expertise will contribute to sustainable practices while ensuring compliance with industry standards and regulations. Collaborate with a talented team of professionals and advance your career in a supportive environment.

Mar 30, 2026
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AECOM logo
Full-time|On-site|Cardiff

We are seeking a talented and experienced Principal Structural Engineer specializing in water engineering to join our dynamic team in Cardiff. In this role, you will lead the design and implementation of innovative structural solutions for water infrastructure projects. You will collaborate with multidisciplinary teams to ensure the highest standards of safety and sustainability are met.

Jan 14, 2026
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AECOM logo
Full-time|On-site|Cardiff

AECOM is seeking a Principal Mechanical Engineer specializing in the water sector to join our dynamic team in Cardiff. In this pivotal role, you will leverage your extensive expertise in mechanical engineering to design and oversee projects that enhance water infrastructure and contribute to sustainable practices. You will collaborate with multidisciplinary teams to deliver innovative solutions while ensuring compliance with industry standards.

Mar 30, 2026

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