Who We Are

We are a small team of engineers and project managers who build the systems construction firms actually need. No enterprise sales process. No software your team will refuse to use.

About Us

Construction firms run on a patchwork of spreadsheets, paper forms, and disconnected systems. Site data gets re-keyed in the office. Project overruns are discovered weeks late. The estimating, procurement, and accounts systems do not talk to each other.

We fix that. We build connected systems that replace the manual handoffs: digital forms that feed straight into your project management tools, dashboards that show project status in real time, and integrations that make your existing systems share data.

Our CTO has been building software since 2007. Everything we build is deployable to your preferred infrastructure: cloud, on-premise, or hybrid, with automated backups and recovery as standard. Our team includes an MArch-qualified architectural professional who has been working in construction since 2018. She understands construction documentation, project delivery, and how information flows from design to site to handover.

How We Deliver

Fixed-price phase-based delivery. You see working software every two to four weeks. We start by understanding how your site, office, and commercial teams actually work: mapping the information flows, finding the manual handoffs, and identifying where data gets lost. Requirements adapt as we learn more about your workflows. Everything we design fits into how you already operate.

Our Focus

We work with housebuilders, main contractors, and specialist contractors who have outgrown spreadsheets but are not ready for enterprise software. Your business is growing, your projects are getting more complex, and your current tools cannot keep up. We build the connected systems that bridge that gap.

Our Team

We are a small, focused team bringing together technical delivery, structured project management, and practical business problem-solving.

We started this business because we saw a growing gap in the industry.

On one side, many companies were pushing heavy AI-driven automation without properly understanding the people, teams, and businesses using it. On the other, many organisations were hesitant to adopt AI altogether often missing opportunities to improve efficiency, decision-making, and day-to-day operations.

We believe the best solutions sit somewhere in the middle.

Technology should support people, not replace understanding. AI should be practical, measurable, and implemented in ways that genuinely improve how your business operates.

As a focused and agile team, we stay closely connected to both our clients and the changing market. We can adapt quickly, communicate directly, and respond to your evolving business needs without layers of unnecessary process.

We work closely with every client from start to finish, combining technical expertise with a strong focus on clarity, collaboration, and real measurable outcomes.

Deanna Hetherington

COO & Project Manager

Deanna holds an MArch (1st class) from the University of Manchester and has worked in architecture since 2015, from intern at JDA Architects to Associate Director at DV Architects. After years chasing site data through marked-up drawings, she joined Rayson.Dev to build the systems she wishes she had. She oversees project operations, client delivery, and team coordination.

Daniel Rayson

CTO & Full-Stack Software Engineer

Dan has been building software since 2007 across .NET, Java, React, and cloud platforms, with project experience spanning steel industry CRM, insurance data portals, trading platform integrations, and charity data systems. He spent years building operational software for industries where disconnected data costs real money. Construction is no different. At Rayson.Dev, he leads technical strategy, systems architecture, and delivery.

If you have a process, system, or idea that could be improved with software or AI, we would be happy to explore it with you.

We start with a simple conversation and help you understand what is possible, what is practical, and what will create real value.