Leighton Grantham

Software Engineer & Product Designer

Manchester-based Software Engineer & Product Designer

Clients

Products I’ve shipped.

ConstructaOS homepage screenshot

01 Plan It. Track It. Build It.

ConstructaOS

Product for early-stage building projects — postcode planning context, cost clarity, concept visuals, and shareable feasibility reports before major fees.

Visit site →
Paid Attention homepage screenshot

02 Make them look.

Paid Attention

Brand and web experience for an OOH and experiential studio — designed to feel bold, kinetic, and attention-led across campaigns and services.

Visit site →
Kat Brown homepage screenshot

03 Flexible expertise. Meaningful impact.

Kat Brown

Personal site for an ESG, social value, and impact strategy consultant — calm editorial design that frames focus areas, case studies, and a clear path to start a conversation.

Visit site →

What I bring.

A decade shipping SaaS and digital platforms — most recently as a Senior Software Engineer at EPAM, and before that building product at AppLearn. I’m a T-shaped engineer: deep on front-end and product, with breadth across design, engineering, and delivery.

I can help with product UI, front-end systems, mobile apps (React Native), and full-stack web builds — from concept through launch. Currently freelancing as LEIGHTON GRANTHAM.

React · React Native · TypeScript · Product design · Angular · Node · AWS

Selected experience

Recent roles across software engineering and product delivery.

  1. Dec 2025 – Present

    Freelance Software Engineer & Product Designer

    LEIGHTON GRANTHAM · Manchester

    Product and engineering for select clients.

  2. Oct 2021 – Oct 2025

    Senior Software Engineer

    EPAM Systems · Manchester

    Digital platform engineering and product delivery for enterprise clients.

  3. Mar 2016 – Oct 2021

    Software Developer

    AppLearn · Manchester

    SaaS product engineering — Angular, AWS, and front-end systems.

Music, events, culture.

Co-founding 01366 Europe and years behind the decks — a separate side of the practice.

Explore outside engineering

Let’s work together.

Available for select freelance and remote contract engagements.