BenjaminCEGLOWSKI

02Experience

Where I’ve Made Impact

1. 01

   HARMONIC SECURITY

   2025 — Present

   20062026

   Principal Frontend EngineerPermanent

   • Principal Product Engineer (user interface focused) at a fast-paced AI startup, responsible for delivering the core product interface end-to-end.
   • Half of a tiny frontend team shipping massive features at lightning speed, using every tool at our disposal to ensure pace, quality, robustness and security.
   • Weighing in on big and small decisions as a Product Engineer, and using full stack experience to help guide engineering and architecture practices across the spectrum of development disciplines.
   • AI native role at a company whose entire product revolves around AI.
   • Driving significant and continuous performance improvements, reducing load times and runtime overhead while maintaining a refined, responsive user experience.
   • Instrumental in streamlining developer experience (DX), introducing tooling, build optimisations, and workflow improvements that accelerated development velocity across the team.
   • Reduced product friction through thoughtful UI architecture, interaction design, and systematic refactoring, enabling faster feature delivery with fewer regressions.
   • Established frontend standards and patterns that improved maintainability, consistency, and long-term scalability in a high-growth environment.
2. 02

   DELIBERATE SOFTWARE LTD

   2021 — 2025

   20062026

   Lead Full Stack Software EngineerPermanent

   • Designed and delivered end-to-end web solutions for clients across e-commerce and fintech.
   • Principal-level technical leadership, mentoring, architecture, and strategic guidance.
   • Perfect Moment — Full production and upkeep of e-commerce platform: TypeScript, Next.js, GraphQL, Clojure, Contentful, Commercetools.
   • Moo — Full-stack services for checkout and back-end PIM integration: TypeScript, Next.js, AWS, Salsify, Commercetools.
   • Ebury — Trading application: TypeScript, Next.js, Python, PostgreSQL, AWS; hands-on mentorship and technical direction.
3. 03

   CRAFTING THE INTERNET LTD

   2018 — 2021

   20062026

   Lead Full Stack Software EngineerContract

   • Software engineering and technical leadership across transport, education, energy, and compliance. End-to-end architecture, mentorship, and best practices.
   • Riskbase — Lead engineer for mobile risk-assessment app (TypeScript, React Native).
   • Shell Agile Hub — Logistics tracking platform (TypeScript, React, GraphQL, Node.js, Azure).
   • EF Education First — Scheduling platform for language tuition (TypeScript, React, MobX, Go).
   • Trainline — International rail travel features (TypeScript, React, Redux, Node.js, C#).
4. 04

   ONEFINESTAY

   2016 — 2018

   20062026

   Senior Full Stack EngineerPermanent

   • Drove development of a new statically rendered React application architecture for the main platform.
   • Advised product, SEO, and CRO teams; led migration from costly SaaS tools to in-house replacements.
   • Full-stack: JavaScript, React, GraphQL, Node.js, Python, Django, AWS, Jest.
5. 05

   PHUSE.CA

   2014 — 2016

   20062026

   Head of Software EngineeringPermanent

   • Led distributed, asynchronous engineering team delivering bespoke web consultancy.
   • Oversaw project delivery and code quality across JavaScript, PHP, React, Node.js, Angular, Vue.js, MySQL.
   • Implemented company-wide engineering standards and best practices; architected full-cycle applications.
6. 06

   THE BIO AGENCY

   2012 — 2013

   20062026

   Senior Software Engineer · Frontend Team LeadPermanent

   • Led front-end team developing web platform for Yell Group. Technical leadership, mentorship, training.
   • JavaScript, HTML, CSS, PHP, MongoDB, Backbone, Ember (LAMP).
7. 07

   SHINE MARKETING

   2011 — 2012

   20062026

   Web Software EngineerPermanent

   • Developed end-to-end retail e-commerce websites for a London-based boutique consultancy.
   • Delivered full-stack solutions using PHP, MySQL, JavaScript, HTML, CSS, and jQuery.
8. 08

   FREELANCE

   2006 — 2011

   20062026

   Full Service Web DeveloperFreelance

   • Delivered web design and development services for several Durban and London-based consultancies.
   • Provided full-stack engineering across JavaScript, PHP, MySQL, Apache, and MongoDB, creating performant and maintainable digital solutions for clients.