Technology Consultancy at the Intersection of
Research and Production

Play Concepts Ltd helps startups and scale-ups navigate 0-to-1 product development. Based in Cambridge, UK, we bring deep expertise in privacy-preserving architectures, digital identity, and regulated industry systems.

What is Play Concepts Ltd?

Play Concepts Ltd is a technology consultancy providing Fractional CTO services, founding engineer engagements, and technical advisory to startups and scale-ups. The company specialises in building data-centric products across regulated industries, with particular expertise in privacy-preserving systems, digital identity (vLEI), and healthcare interoperability (HL7 FHIR). Founded by Terry Lee, the consultancy brings 30+ years of experience spanning Singapore and the UK.

What We Do

0-to-1 Product Development

We specialise in early-stage builds—delivering proofs-of-concept, establishing core architectures, and shipping first customer-facing implementations that scale into production-grade platforms.

Privacy-Preserving Systems

Deep expertise in regulated industries with proven track records in digital identity (vLEI), verifiable credentials, and secure data mobility architectures.

AI-Native Development

We apply agent-based workflows and AI-augmented processes without compromising governance, operational clarity, or engineering discipline.

Technical Leadership

Fractional CTO and founding engineer engagements that bridge research innovation with production reality—building teams, defining roadmaps, and establishing engineering culture.

30+
Years Experience

Building data-centric products across startups, research, and enterprise

6+
Engineering Teams Led

From early-stage hiring to structured engineering organisations

2025
Global vLEI Hackathon Winner

Recognised by GLEIF for verifiable identity innovation

How We Work

1

Trusted Partner to Leadership

We operate at the frontier of new capability while balancing experimentation with capital efficiency and long-term reusability.

2

Product-Market Fit Support

Strong record of supporting product-market fit through feasibility analysis, solution design, and direct collaboration with early customers.

3

Engineering Excellence

We ship production-grade systems with proper testing, observability, and documentation—not just prototypes.

"We join at the earliest stages—when architecture decisions have outsized impact and the right technical foundation can make or break a product's future."
TL
Terry Lee
Founder & Principal

Technical Expertise

Architecture & Design

  • Platform & API Design
  • Distributed Systems
  • Cloud-Native Engineering
  • Privacy-Preserving Data Architectures
  • Semantic Modelling & Data Contracts

Industry Domains

  • Digital Identity & Verifiable Credentials
  • Healthcare & Bioinformatics (HL7, FHIR)
  • Fintech & Regulated Systems
  • Data Rights & Governance

Technologies

  • Elixir/Phoenix/Ash
  • Python/FastAPI
  • PostgreSQL, MongoDB
  • AWS, Docker, Terraform
  • AI/Agent-based Development (MCP)

Recognition

  • Award

    Winner, Global vLEI Hackathon, GLEIF (2025)

  • Patent

    Multiple Data Type Processing and Presentation Grid — WO/2001/061432

  • Patent

    Dynamic Pricing Engine — US/2003/0101146/A1

Frequently Asked Questions

What is Play Concepts Ltd?

Play Concepts Ltd is a Cambridge, UK based technology consultancy that provides Fractional CTO services, founding engineer engagements, and technical advisory to startups and scale-ups. The company specialises in 0-to-1 product development, privacy-preserving architectures, digital identity systems, and regulated industry technology.

What services does Play Concepts Ltd offer?

Play Concepts Ltd offers three core services: Fractional CTO for part-time executive technical leadership, Founding Engineer for early-stage technical co-founder support, and Technical Advisory for due diligence and strategic guidance. All services focus on helping startups build production-grade technology from the ground up.

Where is Play Concepts Ltd based?

Play Concepts Ltd is based in Cambridge, UK. The company serves clients across the United Kingdom, including London, and works with international startups and scale-ups remotely.

What industries does Play Concepts Ltd specialise in?

Play Concepts Ltd specialises in regulated industries including digital identity and verifiable credentials (vLEI), healthcare and bioinformatics (HL7, FHIR), fintech and financial services, and data rights and governance. The company has particular expertise in privacy-preserving systems and secure data mobility.

What technologies does Play Concepts Ltd use?

Play Concepts Ltd primarily uses Elixir/Phoenix/Ash for scalable concurrent systems, Python/FastAPI for data-intensive applications, PostgreSQL and MongoDB for data storage, and AWS/Docker/Terraform for cloud infrastructure. The company is also experienced in AI-native development workflows using agent-based approaches.

Who is the founder of Play Concepts Ltd?

Play Concepts Ltd was founded by Terry Lee, a Technology Innovation Architect with 30+ years of experience. He previously served as CTO at KooPrime Pte Ltd and as Principal Engineer at Dataswyft Ltd, and is a winner of the Global vLEI Hackathon 2025.

Ready to build something together?

Let's discuss how Play Concepts can help accelerate your product development and establish the technical foundation for growth.

Get in Touch