Marcus Gilmore-Lim

Work Experience

1. Senior Software Engineer

   Clipboard · 08/2025 – 05/2026 · Sydney, NSW

   • Architected and deployed externalized error logging for Integration Processing events within a high-traffic monorepo, significantly optimizing backend observability.
   • Spearheaded enhancement of core technical documentation, establishing rigid minimum data requirements for error logs, introducing mandatory scoping parameters such as organizationId to drastically simplify down-stream debugging and isolate cross-tenant issues.
   • Collaborated with cross-functional support teams to diagnose complex production integration bugs across multiple enterprise school platforms, rolling out remediation strategies that directly reduced system alert noise.
   • Mentored engineers through asynchronous peer code review across the monorepo, holding every change to documented standards for automated test coverage and clean code.

2. Senior Software Developer

   4mation Technologies · 01/2022 – 07/2025 · Sydney, NSW

   • Scope new projects and architect solutions.
   • Manage AWS Cloud Infrastructure and accounts.
   • Implement infrastructure using IaC solutions, these include Terraform, Terragrunt, and AWS CDK, for reliable management of infrastructure.
   • Built APIs using Strapi with TypeScript, to quickly develop and provide POC projects to clients.
   • Implement custom decompression algorithm specification for a client in C, delivering the project ahead of schedule.
   • Added features, and implemented security improvements to a platform built on Django, in Python.
   • Integrate with 3rd party services via RESTful API and SOAP API in services built on TypeScript, and Python.
   • Built various frontends based on provided Figma designs using React, Tailwind, Redux Toolkit, TanStack Query, and Next.js.
   • Architected and executed the migration of a legacy, non-version-controlled Jenkins EC2 deployment to a containerized, versioned architecture on AWS ECS Fargate, boosting CI/CD pipeline uptime from ~70% to 95%+ and drastically reducing the complexity of updating Jenkins from days/weeks down to hours.
   • Built an AWS hosted DSC server, to manage pull based satellite machines in restricted environments, all deployed and configured using IaC, allowing for similar functionality to Microsoft365DSC at a considerably lower cost.
   • Optimised and managed a suite of Python scripts used to aggregate data from several integrations into dedicated Excel reports using Pandas and openpyxl, providing sales data to marketing teams to improve sales pipelines.
   • Liaise with clients for the purposes of requirements gathering, and provide project status updates.
   • Work in all other teams within the company to provide support in areas other teams didn’t have specialists in.
   • Grew developer capability through hands-on pairing and continuous code review, championing test-driven development across client projects.

3. Software Developer

   Benojo · 04/2020 – 09/2021 · Sydney, NSW

   • Implemented backend API services using TypeScript, Express, and MongoDB, adding new features, endpoints and services to better service client requirements.
   • Implemented and managed integration with Stripe to ensure prompt and accurate payment processing.
   • Writing testable code using Chai to help to reduce regression bugs.
   • Developing event driven code using AWS Lambda, TypeScript and Terraform.

4. Software Developer

   Helloworld Travel Limited · 01/2019 – 04/2020 · Sydney, NSW

   • Backend development of API microservices using Java, Lagom and Kafka.
   • Maintaining existing API integrations and establishing new integrations with 3rd party providers.
   • Refactor monolithic codebases into smaller microservices.

5. Software Developer

   Code Studio · 07/2017 – 12/2018 · Sydney, NSW

   • Backend development of API microservices using TypeScript.
   • Building mobile/desktop hybrid apps using Ionic.
   • Java development for eBay Australia.

6. Software Developer

   Delacon · 07/2015 – 07/2017 · Sydney, NSW