Open to opportunities

Christian Jay Mangilit

@christianjaymangilit

Message

I build secure customer-facing platforms for banking, healthcare, and booking services.

United Kingdom

Message

At Thought Machine, I build full-stack features for Zopa Bank’s Biscuit current account on Vault Core, spanning onboarding, account workflows, transactions, operational tooling, and integrations. I helped take the product from beta in September 2024 to full launch in June 2025.

I’ve also delivered customer-facing platforms at BJSS for Specsavers Find & Book and the NHS e-Referral Service. My work has covered React, TypeScript, Node.js, Python, REST APIs, GraphQL, cloud delivery, testing, monitoring, and secure integrations in regulated environments.

I bring practical experience translating complex service rules into reliable software, improving release quality, supporting production systems, and mentoring engineers across product, QA, platform, risk, operations, and client teams.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Thought Machine

Dec 2023 - Present (2 years 8 months)

Led senior-level full-stack engineering on Vault Core for Zopa Bank's Biscuit current account, delivering features from beta to full launch. Integrated ML-based risk signals and improved engineering quality through testing, mentoring, and production support.

React TypeScript JavaScript Python REST APIs SQL NoSQL Kubernetes Docker AWS Git CI CD Monitoring ML Risk and Fraud Signals Agile Scrum

Software Engineer

BJSS Ltd

Nov 2016 - Oct 2023 (6 years 11 months)

Developed customer-facing booking features for Specsavers' Find & Book platform and contributed to NHS e-Referral Service, supporting high-volume workflows and regulated environments. Improved release quality and system reliability through testing and cloud migration.

JavaScript TypeScript React Python REST APIs GraphQL SQL Azure AWS Docker Git CI CD Monitoring Agile Scrum

Full Stack Engineer

Global Telehealth, Inc. (KonsultaMD)

Nov 2014 - Oct 2016 (1 year 11 months)

Contributed to the pre-launch build and early production support of KonsultaMD, a 24/7 telehealth hotline. Developed full-stack features for subscriber registration, consultation workflows, and internal admin tools.

JavaScript Python REST APIs SQL HTML CSS Git Linux