Hello, I'm

Jupiter.

Staff Software Engineer | Technical Lead

London, UK


Architecting scalable backend systems for E-commerce, AdTech, and Healthcare sectors. Specializing in Cloud Modernization, Java Ecosystems, and Engineering Strategy. Currently delivering infrastructure impact at Tesco.

About Me

16+ years of experience building and scaling distributed systems across E-commerce, AdTech, CRM, and Healthcare sectors. A proven Technical Lead who has operated at Staff/Principal levels in Japan and Singapore, driving technical strategy and migrating monolithic legacy systems to cloud-native microservices (AWS/Azure).

A hands-on technical leader who combines deep expertise in Java with a strategic focus on Developer Experience (DevX) and Platform Engineering. Currently delivering impact at Tesco while actively building JupiterGoals, an AI-powered LifeOS, demonstrating advanced R&D in LLM agents and goal-decomposition architectures.

Skills & Expertise

Backend (Expert)

Java (16+ years)
Spring Boot
Micronaut
Microservices
Event-Driven Architecture (Kafka)
CQRS
SQL (PostgreSQL/MySQL)
System Design

Platform Languages

Golang (Cloud/K8s/Azure SDKs)
HCL (Terraform)
Shell (Bash/Zsh)

Frontend (Proficient)

TypeScript
JavaScript
React
GraphQL
SPA Architecture
Next.js

Platform & Infra

AWS (ECS/Fargate)
Azure (AKS)
Kubernetes
Terraform
Docker
CI/CD Strategy (Azure DevOps)

Emerging Tech

vLLM
RAG
Vector Embeddings
Model Fine Tuning
AI Agents (R&D focus)

Experience

Software Development Engineer III

TESCO, London
May 2023 - Present
Click to see details
  • Delivering Staff-level impact within the Platform Engineering and Recommendations domains.

Technical Lead (Staff Equivalent)

APERZA INC., Japan
Nov 2017 - Oct 2022
Click to see details
  • Led End-to-End (Full Stack) development through multiple strategic product pivots.

Sabbatical

Global Travel
May 2016 - Oct 2017
  • Embarked on a global journey, experiencing diverse cultures and expanding personal horizons before relocating to Japan.

Technical Lead

RAKUTEN ASIA, Singapore
May 2013 - Apr 2016
Click to see details
  • Introduced and implemented Agile Practices (XP, Scrum, CI).
  • Led team expansion in India Development Center.
  • Conducted solutioning from business requirements and ensured alignment.
  • Increased team productivity through knowledge sharing sessions.

Application Consultant

NCS PTE LTD, Singapore
Mar 2011 - Apr 2013
Click to see details
  • Developed Admin tools for John Wiley & Sons.
  • Led API development for Standard Chartered's Straight2Bank platform.

Team Lead / Java Programmer

ST. LUKE’S MEDICAL CENTER, Philippines
May 2009 - Feb 2011
Click to see details
  • Led the development of critical admission and ordering modules.
  • Championed Test-Driven Development (TDD) practices.
  • Architected core hospital frameworks.

Java Developer

PROV INTERNATIONAL, Philippines
Jan 2008 - Apr 2009
Click to see details
  • Appointed as one of the 5 tech leads for modularizing the Legacy Project.
  • Provided core processes/frameworks to promote code-reuse.

Featured Projects

Open Source Contributions

Other Projects

Awards & Certifications

Tesco Global Hackathon 2024

3rd Place Winner (Team Lead)

Led a team to victory in a global hackathon, demonstrating leadership and technical innovation.

Top Performer Recognition

Top 5% among 30 engineers

Recognized for proficiency in data structures, algorithms, and software design principles during early career.

Oracle Certified Professional, Java SE 6 Programmer

Oracle Certification

Validated expertise in Java programming language and its core libraries.

View Credential →

Recommendations

“Jupiter is a very capable developer, with great technical skills and a desire to apply his knowledge where he can. He is good at analyzing problems and resolving issues, ensuring that all requirements are met and nothing left undone. Jupiter works well alone, as well as in teams (we were an Agile team with regular pairing and strong team ethics). He delivers well to exacting requirements, and can work well with colleagues both senior and junior to him. He is well liked by everyone who works with him, and he is both intelligent and aware in team environments.”

Dominic MessengerFormer Technical Solutions Architect at BBC Worldwide

Education

Informatics Philippines, Eastwood Campus

Bachelor of Science in Computer Science
MAR 2004 - MAY 2007

Get In Touch

Or email me directly at [email protected]

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