Professional Profile

Full-stack software engineer with a background in product management and UX design. I focus on building thoughtful frontend experiences with React and TypeScript, while working comfortably across the stack from UI implementation to backend services and databases.

Email callumkloos@gmail.com
Bluesky callumkloos.dev

Skills

Technical
HTML5CSSJavaScriptTypeScriptReactAstroElixirPhoenixNode.jsHonoJavaSpring BootPostgreSQLSQLiteGit
Product and UX
AgileScrumUser ResearchWireframing and PrototypingUser Story DevelopmentProduct RoadmappingStakeholder Management
Professional
LeadershipCross team collaborationProblem SolvingProject Management

Professional Experience

Software Engineer

Beacon

December 2025 - Present

Focused on frontend development and design implementation, building large features from design through to production. Work spans React frontends and the wider stack, including Java microservices backend systems.

Freelance Web Development

Freelance

April 2025 - October 2025

Worked in a two-person design and development team to modernise a legacy ColdFusion application in the enterprise time-keeping space. Focus was on creating composable components using pure HTML, JavaScript, and a custom BEM-based CSS style structure. Completed implementation of a full redesign of the client-facing app.

Freelance Web Development

Self-directed Learning

April 2024 - April 2025

Dedicated extensive hours into developing a strong proficiency in JavaScript, TypeScript, HTML, CSS, and React. Some projects I worked on include:

  • playQ.xyz
  • Game Master
  • This Little Piggy Richmond

UX and Product Design

Cambrian Games

April 2022 - June 2023

Led UX research and design at an early stage startup, which was building a collaborative AI-driven game building platform.

  • Conducted over 30 user interviews to develop the company's key user personas
  • Designed and tested the MVP platform, which was used to create over 400 games

Product Manager

Receipt Bank (now Dext)

June 2017 - September 2020

Receipt Bank (now Dext) is a fast paced, high growth company using artificial intelligence to disrupt the accounting space.

  • Led a team of 5 developers and 2 designers
  • Grew product led trial conversion from 0 - 15%
  • Grew adoption of automated document collection to over 60% from 0
  • Strongly advocated for and developed user-centric adoption and engagement metrics to inform and drive product strategy

Education

MEng Mechanical Engineering (With Merit)

University of Strathclyde, Glasgow

September 2009 - June 2015

UX Immersion Course

CareerFoundry

November 2020 - June 2021