Sam Dumont

Sam Dumont

Full-Stack Java Developer
Scrum Master & Agile Coach
Mobile App Specialist
ex-Google

Laeken, Belgium
sam@dropbars.be · +32 487 633 993

About

Passionate full-stack Java developer with deep expertise in Spring Boot microservices, React frontends, and mobile-first design. Certified Scrum Master with a track record of delivering enterprise-scale applications. Enjoys yoga and board games in spare time.

Experience

Lead Java Architect @ Proximus — Freelance

Brussels, Belgium · Hybrid

Summary

  • Architect and deliver the next-generation customer portal using Spring Boot and React with PostgreSQL backend.

Responsibilities

  • Design microservices architecture for customer-facing portal handling 2M+ daily requests
  • Mentor team of 12 Java developers across 3 squads
  • Establish coding standards and review processes for the platform team

Achievements

  • Reduced API response times by 40% through Redis caching layer implementation
  • Migrated monolithic Spring application to 47 microservices with zero downtime
  • Java
  • Kafka
  • PostgreSQL
  • RabbitMQ
  • React
  • Redis
  • Spring Boot

Senior Full-Stack Developer @ Belfius Bank — Freelance

Brussels, Belgium · Hybrid

Summary

  • Develop and maintain the mobile banking application serving 1.5 million active users across iOS and Android.

Responsibilities

  • Lead React Native development for the consumer banking app
  • Implement OAuth2/OIDC authentication flows with biometric support
  • Coordinate releases across App Store and Google Play

Achievements

  • Achieved 4.8 star rating on both app stores after UX redesign
  • Implemented real-time push notification system handling 500K daily notifications
  • Reduced app crash rate from 2.1% to 0.3% through systematic error boundary implementation
  • Firebase
  • MongoDB
  • Node.js
  • OAuth2
  • React Native
  • TypeScript

Software Engineer L4 @ Google

London, United Kingdom · On-site

Summary

  • Contributed to Google Maps data pipeline infrastructure, processing petabytes of geospatial data daily.

Responsibilities

  • Develop and maintain C++ data processing pipelines for Maps terrain rendering
  • Optimize MapReduce jobs for satellite imagery processing
  • Participate in on-call rotation for critical Maps infrastructure

Achievements

  • Reduced terrain tile generation latency by 35% through pipeline parallelization
  • Authored internal design doc adopted as reference architecture for geo-processing teams
  • C++
  • gRPC
  • Java
  • MapReduce
  • Protocol Buffers
  • Python

Technology Consultant @ Accenture Belgium

Brussels, Belgium · On-site

Summary

  • Deliver digital transformation projects for major Belgian enterprises in finance and public sector.

Responsibilities

  • Lead Salesforce implementations for government agencies
  • Develop custom Lightning Web Components for CRM workflows
  • Conduct technical workshops for client stakeholders

Achievements

  • Delivered 3 Salesforce implementations on time and under budget
  • Built automated data migration tool reducing go-live risk for all client projects
  • Apex
  • JavaScript
  • Salesforce
  • SAP Integration
  • SQL Server

Junior Java Developer @ Capgemini

Brussels, Belgium · On-site

Summary

  • Develop and maintain enterprise Java applications for insurance and logistics clients.

Responsibilities

  • Build RESTful APIs using Spring Framework and Hibernate
  • Write unit and integration tests with JUnit and Mockito
  • Participate in Agile ceremonies as Scrum team member
  • Hibernate
  • Java
  • JUnit
  • Maven
  • Oracle DB
  • Spring

Application Developer @ Smals

Brussels, Belgium · On-site

Summary

  • Develop web applications for Belgian social security institutions using Java EE and Angular.

Responsibilities

  • Implement front-end interfaces using AngularJS and Bootstrap
  • Develop backend services with Java EE and JBoss application server
  • Maintain Oracle database schemas and stored procedures
  • AngularJS
  • Java EE
  • JBoss
  • Oracle DB
  • SOAP
  • XML

Projects

BelgianFoodFinder

A React Native app helping users discover local Belgian restaurants and food trucks using real-time GPS and crowd-sourced reviews.

  • Featured in Belgian App Store spotlight
  • 15K monthly active users across iOS and Android
  • Real-time menu updates via Firebase Cloud Functions
SpringBoot Starter Template

An opinionated Spring Boot project template with pre-configured security, observability, and CI/CD pipelines for enterprise microservices.

  • Used as base template across 3 enterprise clients
  • Includes Prometheus metrics and Grafana dashboards out of the box
  • 120+ GitHub stars
MeetingMinutesAI

A web app that automatically transcribes and summarizes meeting recordings using OpenAI Whisper and GPT-4.

  • Processes 1-hour meetings in under 3 minutes
  • Exports to Confluence, Notion, and Slack
  • Built with Next.js and Vercel serverless functions

Skills

Expert
  • Java
  • PostgreSQL
  • React
  • Spring Boot
  • TypeScript
Advanced
  • GCP
  • Kafka
  • MongoDB
  • Node.js
  • React Native
  • Redis
Proficient
  • C++
  • Docker
  • Firebase
  • GraphQL
  • Hibernate
  • OAuth2
  • Python
  • RabbitMQ
  • Salesforce
  • SQL Server
Familiar
  • Angular
  • Apex
  • gRPC
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