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From Global Tech Giants to Tailored Innovations: The Journey Behind Green Triangle Software

Green Triangle Software officially started life during 2019 when founder Christian Yeates combined the challenge of COVID and homeschooling.

Green Triangle Software was officially born in 2019, amidst the unique challenges of COVID-19 and homeschooling, when founder Christian Yeates decided it was time to bring his vision to life.

Chris’s career spans roles as a firmware engineer, software developer, development manager, and project manager for industry leaders like Siemens and Sony. His expertise in low-level languages, electronics, and embedded systems was always driven by a singular motivation: to solve real problems, deliver what the sales team needed, and provide end users with the best possible experience. Unlike many who focus on the latest libraries and over-engineered solutions, Chris has always prioritised practical, user-centered innovation.

His journey includes developing high-end TVs at Sony, 15 years in access control and CCTV for Siemens and others also named in patents. Chris then ventured into cloud development, personally integrating 25 major banks, including Barclays, Blackhorse, and Santander, for a leading UK motor finance fintech.

As a project manager, Chris led software projects for clients like MotoNovo and BNP Paribas. Yet, as a theorist with a passion for change, he continued to dream of building his own development team—one that could bring consumer-level software quality to the B2B world.

 

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Why our clients choose us

At Green Triangle Software, our clients trust us for our exceptional UK-based technical expertise, ensuring that all development is handled locally by our skilled in-house team. In addition to technical excellence, we provide dedicated project management, with the flexibility to meet in person when needed. This hands-on approach guarantees a seamless, personalized experience throughout every stage of your project, from conception to completion.

We provide a fixed cost for the entire project, ensuring no surprises or hidden fees along the way. Our clients benefit from clear and transparent pricing, allowing them to plan with confidence. In addition, we offer flexible payment options to suit your needs and provide ongoing maintenance to ensure your software continues to run smoothly, giving you long-term peace of mind. With Green Triangle Software, you can focus on growth while we handle both the development and the ongoing support.

Our clients choose us because professional-quality software requires more than just one developer—it needs a team of experts. With specialists in UX/UI design, frontend and backend development, testing, and software architecture, we deliver robust solutions. From requirements gathering to day-to-day team management, we ensure transparency at every stage, so you always know what’s happening. Plus, we avoid technical jargon, making the process clear and understandable, no matter your level of technical knowledge. We tailor our approach to meet your needs while delivering precise and transparent project outcomes

At Green Triangle Software, we believe in building strong, professional relationships with our clients based on a shared vision. This close collaboration ensures we fully understand your needs and goals, allowing us to deliver tailored solutions with the highest quality. We are passionate about software excellence, incorporating rigorous testing to ensure long-term reliability. Our professional yet personalised approach allows us to stay engaged with our clients, fostering trust while delivering reliable software that continues to perform and evolve with your business.

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As a process transformation company, we rethinks and rebuilds processes for the digital

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As a process transformation company, we rethinks and rebuilds processes for the digital

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CHARITY

Shelter Cymru

At Green Triangle Software, we proudly support Shelter Cymru, a charity dedicated to preventing homelessness across Wales. Shelter Cymru works tirelessly to ensure that no one, especially children, has to live in temporary accommodation or face the threat of homelessness. They provide essential advice, support, and legal services to those in need, helping secure safe, permanent homes. One of the ways we contribute to this cause is through our CEO, Christian, who regularly participates in races to raise awareness and funds for Shelter Cymru. As Christian puts it,

“Signing up for races to raise awareness for Shelter Cymru, a charity I passionately care about, gives me the motivation to train, even on days when I don’t feel like it, which is more often than not in the Welsh weather. Running not only improves my health but also sharpens my focus and boosts my productivity, helping me perform at my best both personally and professionally.”