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Stephen Thomas

About

Detail

Dublin, County Dublin, Ireland
Contact Stephen regarding: 
work
Full-time jobs
Starting at USD4k/month
Flexible work
Starting at USD25/hour

Timeline

work
Job
school
Education

Résumé

Jobs verified_user 0% verified
  • Finastra
    Senior Full Stack Engineer
    Finastra
    Jul 2022 - Current (4 years 3 months)
    • Led backend development of Node.js and GraphQL microservices using Express and Redis, supporting
    payments, loans, and real time transaction data.
    • Developed micro frontends using React, and TypeScript, improving modularity and Ul load times.
    • Improved peak time payment performance by 40 percent through caching redesign and routing
    optimizations.
    • Shipped mobile features in React Native including biometric login, offline support, and fraud alerts.
    • Automated onboarding and compliance workflows using OpenAl for document processing and entity
    extraction, reducing manual review by 30 percent.
    • Implemented RAG pipelines with LLMs to support payment compliance and fraud checks, improving speed
    a
  • DEPT
    Senior Full Stack Engineer
    DEPT
    May 2019 - Jun 2022 (3 years 2 months)
    • Built a multi tenant ecommerce platform using React, Next.js, and TailwindCSS, improving performance and
    customization speed.
    • Developed GraphQL and REST APIs with Python and Django for catalog, cart, and order features.
    • Implemented PostgreSQL row level security and Prisma tenant isolation for safer multi tenant operations.
    • Integrated Stripe for tenant specific payments, reducing payment failures during high traffic periods.
    • Added Redis rate limiting and throttling to stabilize the platform during peak load.
    • Introduced CI/CD with GitHub Actions, reducing deployment time by 50 percent.
    • Fixed recurring seasonal performance issues through tenant aware caching and improved load distribution.
  • Valtech
    Full Stack Engineer
    Valtech
    Aug 2016 - Apr 2019 (2 years 9 months)
    • Built analytics dashboards using Vue.js, D3, and Highcharts for internal and client reporting.
    • Created Flask APIs for real time and historical data.
    • Designed data pipelines with Kafka and Kinesis to reduce dashboard latency.
    • Managed AWS infrastructure including EC2, S3, and RDS.
    • Added SAML SSO support for enterprise security requirements.
  • W
    Full Stack Engineer
    Wiredmark
    Jan 2015 - Jul 2016 (1 year 7 months)
    • Built digital marketing and automation tools using Laravel and MySQL.
    • Created reusable Bootstrap Ul components that reduced campaign setup time by 40 percent.
    • Added tracking with Google Analytics and UTM parameters for better campaign attribution.
    • Set up CI/CD using CircleCI and Heroku.
Education verified_user 0% verified
  • The University of Tokyo
    Bachelor's degree in Computer Science
    The University of Tokyo
    Jan 2009 - Jan 2014 (5 years 1 month)
    Tokyo, Japan