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Bridging ambition
and technology

Expert software consultancy specialising in turning innovative ideas into robust, scalable solutions.

Green Unicorn mascot

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Comprehensive solutions

From initial concept to long-term maintenance, we support every stage of your technology journey.

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Feasibility Study

Have a great idea but don't know where to start? We explore possibilities, evaluate technology options, and estimate costs through collaborative planning.

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Rapid Prototyping

Need to prove your concept quickly? We build fully functioning demos to help you showcase your idea to stakeholders and validate its potential.

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Application Design & Launch

Ready to turn your idea into reality? Full-stack expertise from concept to deployment, ensuring your application is ready to make an impact.

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Extension & Maintenance

Already have a product? Whether adding features, improving performance, or ensuring reliability β€” we become experts in your systems and help them thrive.

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Technology Auditing

Worried about your software? Our audits uncover vulnerabilities, compliance issues, bugs, and inefficiencies with clear, actionable improvements.

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Strategy & Architecture

Overwhelmed by technical direction? We provide fresh perspectives, guide strategic planning, and clarify complex technologies to simplify decision-making.

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Technical Investor Support

Looking to invest in a tech-led business but not sure what's under the bonnet? We assess full-stack architecture, evaluate IP strength, and identify personnel vulnerabilities.

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Trusted by industry leaders

From PropTech to e-commerce, we deliver results across diverse sectors.

Digital platform for faster home moves. Leading the entire technical roadmap and implementation, launching several industry-leading features and applications. Trusted by Knight Frank.

Conveyancing-grade Digital Sales Packs and Property Logbooks. Streamlining property transactions with government-trusted technology.

AIAutomationPropTechTechnical Leadership
Luke RedfernAndy Redfern

Platform processing 100,000+ bookings annually across 18 countries. Audited processes, shaped long-term technical vision, and helped navigate leadership transition following CTO departure.

Also powers BeachHuts.com, BritainsFinest.co.uk, FishPal.com, Monasteries.com, and UniversityRooms.com.

Technology AuditStrategyBooking Platform
Luke Redfern

Created SayHola β€” a proof-of-concept AI chatbot for the advertising technology space. Ongoing partnership developing innovative solutions.

AI-powered chatbot proof of concept demonstrating the potential of conversational AI in advertising technology.

AIChatbotAdTechRapid Prototyping
Luke Redfern

Premium marketplace for high-quality yoga equipment. Providing ongoing technical support consultancy to maintain and enhance the e-commerce platform.

Keeping a best-in-class yoga and wellness marketplace running smoothly.

E-commerceSupportMarketplace
Luke RedfernAndy Redfern

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Meet the team

Luke Redfern

Luke Redfern

Founder & Lead Engineer

LinkedIn

A dynamic and seasoned software engineer with over a decade of expertise in transforming innovative ideas into robust, scalable solutions. Luke specialises in supporting early-stage start-ups and businesses, guiding them through product development from initial concept to successful implementation.

His approach mirrors the dynamic spirit of a tiger team β€” focusing on tackling critical challenges with precision and speed. Luke's consultancy is dedicated to helping clients overcome technical challenges and achieve tangible results.

Career Highlights

Oracle: Led a Kubernetes migration that saved Β£1 million annually and halved service downtime.

Global Taxonomy: Designed a graph-powered taxonomy management system that reduced time-to-market by 40%.

Amazon Alexa: Advanced Alexa's multilingual capabilities, enabling growth in international markets.

Side Projects

Roadlings: A family car game I built: pop in your destination and the whole car plays quizzes and spot-it games about the real places outside the window. Read the road-trip diaries from the drives we've tested it on.

Vue / ReactPython / Node.jsCloud & KubernetesMachine LearningBackend ServicesDatabasesDevOps / CI-CDSystem ArchitectureUI / UX Design

Cambridge Master's in Engineering (Distinction) Β· Multiple patents Β· Hackathon award winner

Β£1M+

Annual savings from Kubernetes migration at Oracle

40%

Reduced time-to-market with graph-powered taxonomy system

10+

Years of software engineering expertise

Cambridge

Master's in Engineering (Distinction)

Andy Redfern

Andy Redfern

E-commerce & Business Strategy Advisor

LinkedIn

With extensive experience running businesses and deep expertise in e-commerce, web platforms, and support structures, Andy brings invaluable strategic guidance to Green Unicorn Software. His business acumen and hands-on knowledge ensure our clients receive well-rounded support that extends beyond pure technology β€” covering the commercial realities of building and scaling digital products.

PHP / TwigJavascriptLAMP StackE-commmerce StrategySystem IntegrationMySQL /MariaDBSystem AdministrationShopify / LiquidGeospatial Data
Β£2.4m

Raised in venture finance for tech start-up

50%

Increase in conversion rate after leading an e-commerce migration from Magento to Shopify

30+

Years of tech leadership experience

Warwick

Degree in Electronic Engineering

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Kind endorsements

Feedback from clients, colleagues, and collaborators. More detail available on request.

β€œLuke handles every aspect of our technology at HOP, from architecture and development right through to launch and beyond. He’s always available when we need him, and what I value most is how he keeps me in the loop in a way I can actually understand. I’m not a technical person, but Luke gives me the clarity I need to make real decisions about our product. He’s launched new products for us, and I always feel confident that the technical side of the business is in safe hands.”

Sally Holdway, CEO

Teal Legal (HOP)

Mar 2026

β€œWe brought Luke in to review our engineering setup: codebase, development practices, technical roadmap, and AI tooling. His findings gave us real clarity on where we stood and what needed to change. When our CTO departed, Luke stepped into a broader role, helping with C-suite planning, mapping our long-term technical direction, and driving a full inventory of our systems. He also played a key part in hiring our new engineering manager. Luke bridges deep technical expertise and strategic thinking, and he's become someone I genuinely rely on.”

Tom Holmes, COO

Redburn Innovations (SpeedyBooker)

Mar 2026

β€œAndy brings a really practical, hands-on expertise that complements the technical side perfectly. He handles customer support, SEO, Microsoft administration, and even brings investor experience to the table. Having Andy available for frontline support gives us real peace of mind, knowing we’re not reliant on any single person. It’s that extra layer of resilience that makes the whole team feel solid.”

Sally Holdway, CEO

Teal Legal (HOP)

Mar 2026

β€œLuke provides much of the focus for our team. He does a good job of ensuring the work we are doing stays on target and works towards a measurable goal.”

Principal Software Engineer

Oracle

Jun 2024

β€œLuke has very good and broad technical skills. He also has good technical instincts, is up for a challenge and is good at making his ideas reality.”

Senior Software Engineer

Oracle

Jun 2024

β€œLuke's super power is his passion for customer experience and his ability to channel it into tangible improvements. He is both full of ideas and quick to execute them, often delivering bug fixes and improvements without being asked. This combination of vision and delivery is exemplary.”

Software Development Manager

Amazon Alexa

May 2019

β€œRight after joining, Luke coordinated the planning, execution and delivery of a 6-week job with skill and autonomy. We could see that Luke was ready for responsibility over the delivery of the reengineering of one of the microservices the team owned, and he gave attention to communication and alignment with all stakeholders alongside the technical work.”

Software Development Manager

Ocado Technology

Jan 2020

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Let's build something extraordinary

Have a project in mind? We'd love to hear about it. Tell us what you're working on and we'll get back to you.