Thomas Bolton

Experienced Software Engineer with a strong background in backend and full-stack development. Proficient in cloud-based distributed architectures (AWS, Firebase), APIs (design, development, integration), and frontend development. Passionate about owning projects through planning, development, deployment and then monitoring in production.

Languages: Java TypeScript JavaScript Python | Backend: Spring Boot JPA NestJS | Frontend: React.js Tailwind CSS | Databases: PostgreSQL MongoDB DynamoDB Redis | Messaging: RabbitMQ Spring Integration | Infrastructure: AWS Firebase | DevOps/Monitoring: Docker Grafana Elastic | Testing: JUnit JaCoCo Jest Pact | Architecture: Hexagonal architecture DDD Event Driven Architecture Serverless

Professional Experience

Software Engineer Tes | Apr 2022 - Present

• Among early adopters of Java/Spring Boot; collaborated with another engineer to design and develop a standardised service template following Hexagonal Architecture and DDD, now used in many production services. Provided support to other teams adopting Java and Spring Boot.
• Developed integration services following Event Driven Architecture using Java, Spring Boot, RabbitMQ, Spring Integration and Spring Webflux. Handles 100k+ events per second.
• Built unified authentication system using Spring Boot, AWS Cognito and PostgreSQL, easing user workflow by providing a single login account for many products. Over 1 million users migrated already.
• Integrated OTEL with multiple services in different languages/frameworks. Used Grafana LGTM stack for monitoring.
• Contributed to frontend development in React.js and Next.js, particularly for timetabling and authentication applications.

Software Developer Vitaccess | Sep 2020 - Mar 2022

• Led development of a serverless API for localisation automation using AWS Lambda, API Gateway, and DynamoDB, synchronising data with a React Native app.
• Built and maintained a Node.js, Express.js backend integrated with Firebase for patient surveying applications.
• Developed web/mobile applications using React.js, React Native to collect patient-reported outcomes for rare disease treatments.

Software Developer Entrepreneur Seminar | Aug 2019 - Aug 2020

• Designed and built a full-stack web application using Next.js, React.js, Styled Components, Node.js, Express.js, and MySQL for business-related courses.
• Implemented a custom CMS (Node.js, React.js, AWS S3) for blog content, user analytics for video engagement, and secure payment processing with Stripe and PayPal.
• Managed Linux based server environment, database migrations, and SQL based report generation.

Software Engineering Internship Schroders | Jul 2017 - Jun 2018

• Developed internal business applications to generate reports for regulatory compliance (Solvency II, MiFID).
• Utilised React.js, Redux, Jest, Enzyme, and SCSS to build and test frontend applications.
• Took part in Agile ceremonies; stand ups, sprint reviews, retrospectives.

Education

BEng Biomedical Engineering Queen Mary, University of London | 2015 - 2019

• Final-year data analysis project on cartilage tissue structure using Python, Pandas, and NumPy.
• Gained strong foundations in mathematics, computing, and data analysis through modules in programming, statistics, and numerical methods.
• Developed transferable technical skills, including programming and systems modeling, applicable to software engineering and system design.