Jan Cyngynn Kristoffer Frigillana

Senior Software Engineer · AI Systems & Automation

About

Full Stack Senior Software Engineer with 9+ years building production web applications across aviation, fintech, SaaS, supply chain, and workforce management.

Works in AI-assisted development daily with Claude Code, Cursor, and GitHub Copilot, keeping planning, architecture, and code review human-led while delegating implementation to AI for fast, reviewable output without sacrificing quality.

Has shipped AI-powered features in real products with OpenAI, LangChain, Vercel AI SDK, and Mastra AI. Four years at Emirates Group set the standard: clean code, rigorous reviews, structured testing.

Featured Projects

one platform

onboarding to invoicing

MatterWorx

A vendor management platform that brings agency onboarding, shift scheduling, credential tracking, and invoicing into one automated system.

Next.js · .NET · AWS · Docker

days → hours

content pipeline turnaround

Storyline

An agentic marketing engine that writes, fact-checks, and publishes SEO content for the AI-answer era.

Next.js · Mastra AI · Vercel AI SDK · OpenAI · BullMQ · AWS

4 years

in production

akeno.ai

A supply chain traceability platform with an AI assistant that answers questions over live operational data.

Next.js · GraphQL · Hasura · OpenAI · LangChain · Azure

revenue accounting

at airline scale

Emirates Group

Revenue accounting at airline scale, spanning interline sales, tax computation, and proration.

React · Node.js · REST & SOAP · Jenkins · Big Data

developers led

AICPA Spanish Hub

Leading a 5+ developer team delivering AICPA's Spanish-language member platform.

React Native · GraphQL · AWS · Salesforce

Skills

Languages

TypeScript
JavaScript
Python
SQL

Frontend

ReactJS
Next.js
React Native
Redux
HTML5
CSS3
Tailwind CSS
Webpack

Backend

Node.js
GraphQL
Hasura
Express
REST APIs
Flask
Prisma
PostgreSQL
Oracle

AI & Agentic

OpenAI API
LangChain
Vercel AI SDK
Mastra AI
Claude Code
Cursor
GitHub Copilot
BullMQ pipelines
Agentic workflows
TDD with AI agents

Cloud & DevOps

AWS EC2
Microsoft Azure
Google Cloud
Nginx
PM2
Jenkins
GitHub Actions
Docker
CI/CD pipelines
Blue-green deployment

Testing

Playwright
Cypress
Vitest
Jest
Puppeteer

Career Timeline

Jul 2025 – Present
Senior Full Stack Developer
Storyline
AI-native SEO & AEO platform. Architected multi-step Mastra AI agent workflows, built the BullMQ background pipeline, and set up blue-green deploys with GitHub Actions CI/CD on AWS.
Sep 2021 – Sep 2025
Senior Full Stack Developer
Cloud Employee, Data Lighthouse (akeno.ai)
Supply chain traceability platform. Built the AI assistant with OpenAI and LangChain, real-time Hasura GraphQL subscriptions, and complex AG Grid & Bryntum scheduling views.
Feb 2021 – Sep 2021
Application Development Team Lead
Accenture
Led a team of 5+ developers on the AICPA Spanish Hub in a SAFe Agile setup, running sprint planning, client updates, and code and performance reviews.
Jun 2020 – Feb 2021
React Native Developer
Outliant
Built The Sandlot's mobile UI in React Native from Figma designs, consistent across iOS and Android, with AWS service integrations.
Sep 2019 – Jun 2020
R&D Engineer / Senior Software Engineer
4Loop
Full-stack e-commerce features across a React frontend and Flask/PostgreSQL backend, with documented R&D phases.
Jan 2019 – Jan 2020
Full Stack Developer
Four13
Reusable React component libraries for the COI Tracker insurance SaaS, with Jest unit tests covering the core logic.
Nov 2014 – Sep 2018
Professional Program Analyst (Software Engineer)
DXC Technologies, Emirates Group
Emirates Group revenue accounting: interline sales, tax computation, proration, and cargo processing. Multiple Najm Awards; 2nd place, Emirates Big Data Hackathon 2017.

Contact

Open to senior roles in AI systems and automation. The fastest way to reach me is email.