David – Typescript, React, Next.js

Serverless language learning platform delivering personalised LLM-powered feedback on learner progress.

• Resolved data integrity issues caused by non-deterministic AI responses;
• Implemented Structured Output (JSON schema enforcement) to guarantee parseable model output for downstream services;
• Refined AWS Bedrock integrations to improve accuracy of learner progress analysis while significantly reducing token consumption and operational costs;
• Managed and optimised scalable asynchronous processing pipelines using Lambda and EventBridge, ensuring efficient data flow across the serverless architecture.

CRM platform for managing logistics deals, clients, destinations, and rate calculations with editable deal pipelines.

• Worked directly with operations managers to translate real logistics workflows into product requirements, iterating on screens and data rules to match how the team actually works;
• Built rate/price computation flows (netto/brutto, weight/volume/cartons) and aligned frontend recalculation with backend service logic for consistent outcomes across edits and edge cases;
• Designed the system end-to-end — domain model, API boundaries, and frontend state flow — to keep complex deal structures maintainable as features expanded;
• Containerised services with Docker and set up the production runtime environment on AWS for repeatable releases.

Scoped application enabling secure Salesforce integration and bi-directional record synchronisation within ServiceNow.

• Architected a secure OAuth 2.0 authorisation flow within a ServiceNow scoped app to manage Salesforce access tokens and session lifecycle;
• Engineered functionality to create and link Salesforce records directly from ServiceNow, unifying CRM and ITSM workflows;
• Partnered with fellow developers to standardise integration patterns across multiple ServiceNow connectors, ensuring architectural consistency;
• Collaborated with QA engineers to define edge-case scenarios and validation protocols, ensuring data reliability during record synchronisation.

MVP meditation app enabling users to browse and purchase calming natural soundscapes (river, forest, rain, etc.)

• Developed meditation app MVP from scratch to release;
• Maintained direct dialogue with the client throughout development to surface, clarify, and validate all product requirements;
• Owned the full user interface end-to-end - navigation, audio player, purchase flow, and sound library screens;
• Integrated Firebase Storage for hosting and streaming purchasable audio files, handling access control and download flows.

Enterprise insurance compliance platform enabling organisations to automate document collection, contractor tracking, and risk management across internal operations and partners.

• Implemented new UI components on top of Ant Design and optimised async state management via Redux Saga;
• Developed the platform's critical functionality — authentication and authorisation, document management, automated reminders, and in-app messaging — backed by Express.js and MongoDB;
• Covered critical user flows with Cypress end-to-end tests, significantly improving platform stability and release confidence.