Currently @ Tesco
Jupiter Tecson
Staff+ Engineer · Systems, Platform & AI
Designing distributed systems and developer platforms that drive commercial impact—yielding £2M+ sales uplift and turning months of team onboarding into paved paths.
£2M+
Revenue Uplift
Via A/B Testing @ Tesco
94%
Faster Deploys
4h to 15m @ Aperza
18+
Years Exp
Global: UK, JP, SG, PH
£440k
Cloud Savings
Design & Resource optimization
Primary Expertise
Polyglot & Cloud
Emerging Tech
"Good at analyzing problems... ensuring that all requirements are met and nothing left undone."
— Dominic Messenger
Technical Architect - BBC / HMRC
A scale-to-zero hybrid architecture decoupling inference from control planes to minimize AI costs.
Start a Conversation
Open to Staff+ leadership, system design advisory, and coffee chats.
Jupiter Tecson
Staff+ Engineer · Systems, Platform & AI
London, UK • [email protected]
walkingjupiter.com£2M+ Revenue Uplift • 15min Release Cycles
Jupiter Tecson
Staff+ Engineer · Systems, Platform & AI
Technical Expertise
Primary Expertise
- • Java (Spring/Micronaut)
- • Distributed Systems
- • Event-Driven (Kafka)
- • System Architecture
Polyglot & Cloud
- • Kubernetes
- • Terraform
- • Go
- • Python
- • TypeScript & React
- • AWS / Azure / GCP
Emerging Tech
- • AI Agents
- • RAG
- • Agentic Dev Workflows
- • SLM Fine-tuning
Primary Expertise: Java (Spring/Micronaut), Distributed Systems, Event-Driven (Kafka), System Architecture
Polyglot & Cloud: Kubernetes, Terraform, Go, Python, TypeScript & React, AWS / Azure / GCP
Emerging Tech: AI Agents, RAG, Agentic Dev Workflows, SLM Fine-tuning
Honors & Awards
Tesco Global Hackathon Winner (3rd Place)
Recruited and led a technical team to a third-place finish in 2024 as lead architect.
Top Performer Recognition
Ranked 3rd out of 50 engineers in 2008 technical bootcamp.
- Tesco Global Hackathon Winner (3rd Place) — Recruited and led a technical team to a third-place finish in 2024 as lead architect.
- Top Performer Recognition — Ranked 3rd out of 50 engineers in 2008 technical bootcamp.
Professional Experience
Software Development Engineer III— Operating at Staff Level
May 2023 – Present- Cross-Domain Integration: Partnered with the Personalization domain to co-build and scale the recommendation engine for Personalized Substitutions, yielding a £2M+ sales uplift via live production A/B testing.
- Cloud Resource Efficiency: Audited and optimized resource allocations for high-traffic core services during AWS-to-Azure cloud migration, securing £440k/year in confirmed savings.
- Developer Enablement: Co-designed a secure, multi-tenant developer platform to build the 'Golden Path' for engineers; currently onboarding the first teams to streamline developer setup.
- Technical Standards: Established patterns for distributed job execution, cloud-agnostic deployment templates, and testing frameworks across core business domains.
- Engineering Enablement: Directly mentored 2 engineers within the domain, accelerating their technical progression and supporting their integration into core systems architecture.
Technical Lead
Nov 2017 – Oct 2022- Continuous Deployment: Led the transition from high-risk manual releases to fully automated Continuous Deployment (CD), fundamentally improving the team's operational rhythm.
- Release Frequency: Helped transition the engineering culture from fear-inducing monthly releases to multiple safe production deployments per day.
- CI/CD Optimization: Designed CI/CD pipelines that reduced release overhead from 4 hours to 15 minutes (94% reduction) with integrated automated tests.
- Infrastructure Savings: Reduced cloud OPEX by £24k/year by containerizing workloads (ECS) and adopting Spot Instances.
- Talent Development: Directly mentored 2 engineers, coaching them on modern DevOps best practices, TDD, and continuous delivery.
Global Exploration
May 2016 – Oct 2017- Solo travel across 14 countries; refined adaptability and cross-cultural communication skills essential for leading distributed, global engineering teams.
Technical Lead
May 2013 – Apr 2016- Agile Transformation: Introduced XP/Scrum practices (Pair Programming, CI), increasing velocity by 30%.
- Global Ad Platform: Founding engineer for the greenfield display ad engine (now Rakuten Marketing Platform); led integration discussions with PriceMinister (France) and Rakuten Brazil.
- Distributed Leadership: Promoted to Lead during the expansion to India; managed technical alignment between Singapore HQ and the new development center.
Application Consultant
Mar 2011 – Apr 2013- Standard Chartered Bank: Optimized API payloads for 'Straight2Bank' mobile app, improving efficiency by 15%.
- John Wiley & Sons: Deployed mobile content services and analytics for the Online Library.
- Optimization: Implemented 'Counter Compliant' traffic monitoring and reporting.
Scope: Standard Chartered Bank: Optimized API payloads for 'Straight2Bank' mobile app, improving efficiency by 15%. | John Wiley & Sons: Deployed mobile content services and analytics for the Online Library. | Optimization: Implemented 'Counter Compliant' traffic monitoring and reporting.
Java Developer (Team Lead)
May 2009 – Feb 2011- Architecture: Co-architected migration of critical hospital systems from COBOL Mainframe to Java Web.
- Framework Design: Built the 'Healthcare Report System', abstracting JMS and printing logic.
- Efficiency: Reduced report creation time from days to hours via meta-programming frameworks.
Scope: Architecture: Co-architected migration of critical hospital systems from COBOL Mainframe to Java Web. | Framework Design: Built the 'Healthcare Report System', abstracting JMS and printing logic. | Efficiency: Reduced report creation time from days to hours via meta-programming frameworks.
Java Developer (Team Lead)
Jan 2008 – Apr 2009- Inventory Control: Architected forecasting algorithm using historical data trends.
- Payroll: Implemented complex 'Last Pay' computation module for a major broadcasting network.
- Leadership: Led a team of 4 in SDLC cycles.
Scope: Inventory Control: Architected forecasting algorithm using historical data trends. | Payroll: Implemented complex 'Last Pay' computation module for a major broadcasting network. | Leadership: Led a team of 4 in SDLC cycles.
Ventures & Open Source
Spring Modulith Contributor
Open SourceBuilding modular monoliths in Spring Boot.
NextAuth.js (Auth.js) Contributor
Open SourceStandard authentication solution for Next.js.
Spring Framework Contributor
Open SourceMost popular Java application framework.
KEDA Contributor
Open SourceKubernetes Event-driven Autoscaling components.
JupiterGoals AI
Creator & Principal ArchitectPersonal AI Agent for goal decomposition. (Applied AI Research)
ReadySetMarry
Creator & Lead EngineerMultilingual wedding platform. Currently in Closed Beta to manage media egress costs.
Zero-to-One Mentorship (OAH Architecture)
Mentorship & CommunityMentored a non-technical professional from zero coding knowledge to designing, developing, and launching a custom production portfolio website before the AI era.
Android Dev Community
Community LeadFounded community to foster knowledge sharing in early Android ecosystem.
Building modular monoliths in Spring Boot.
Standard authentication solution for Next.js.
Most popular Java application framework.
Kubernetes Event-driven Autoscaling components.
Personal AI Agent for goal decomposition. (Applied AI Research)
Multilingual wedding platform. Currently in Closed Beta to manage media egress costs.
Mentored a non-technical professional from zero coding knowledge to designing, developing, and launching a custom production portfolio website before the AI era.
Founded community to foster knowledge sharing in early Android ecosystem.
Certifications
- Agentic AIDeepLearning.ai • Dec 2025
- Generative AI with Large Language ModelsCoursera • Dec 2025
- Practical Guide to KubernetesEducative • Jan 2023
- Distributed Systems for PractitionersEducative • Jan 2023
- Data Scientist ToolboxCoursera • Oct 2014
- Oracle Certified Professional, Java SE 6Oracle • Mar 2012
- Agentic AI (Dec 2025)
- Generative AI with Large Language Models (Dec 2025)
- Practical Guide to Kubernetes (Jan 2023)
- Distributed Systems for Practitioners (Jan 2023)
- Data Scientist Toolbox (Oct 2014)
- Oracle Certified Professional, Java SE 6 (Mar 2012)
Education
Informatics International College
Bachelor of Science in Computer Science
2004 – 2007
Leadership Endorsements
"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."
"Jupi is a professional programmer with multiple strong technical fields... He wrote both the frontend and the backend. He always understands requirements quickly... Our team had to speak in Japanese from time to time, but he understood almost 50% of what we said by taking notes... He is passionate about his work and technology, always thinking about his teammates."
Detailed case studies and interactive portfolio available at walkingjupiter.com
Start a Conversation
Open to Staff+ engineering leadership, advisory, and coffee chats.
Open to technical exchanges and coffee chats.
Jupiter Tecson
Staff+ Engineer · Systems, Platform & AI
London, UK • [email protected]
walkingjupiter.com£2M+ Revenue Uplift • 15min Release Cycles
Jupiter Tecson
Staff+ Engineer · Systems, Platform & AI
Technical Expertise
Primary Expertise
- • Java (Spring/Micronaut)
- • Distributed Systems
- • Event-Driven (Kafka)
- • System Architecture
Polyglot & Cloud
- • Kubernetes
- • Terraform
- • Go
- • Python
- • TypeScript & React
- • AWS / Azure / GCP
Emerging Tech
- • AI Agents
- • RAG
- • Agentic Dev Workflows
- • SLM Fine-tuning
Primary Expertise: Java (Spring/Micronaut), Distributed Systems, Event-Driven (Kafka), System Architecture
Polyglot & Cloud: Kubernetes, Terraform, Go, Python, TypeScript & React, AWS / Azure / GCP
Emerging Tech: AI Agents, RAG, Agentic Dev Workflows, SLM Fine-tuning
Honors & Awards
Tesco Global Hackathon Winner (3rd Place)
Recruited and led a technical team to a third-place finish in 2024 as lead architect.
Top Performer Recognition
Ranked 3rd out of 50 engineers in 2008 technical bootcamp.
- Tesco Global Hackathon Winner (3rd Place) — Recruited and led a technical team to a third-place finish in 2024 as lead architect.
- Top Performer Recognition — Ranked 3rd out of 50 engineers in 2008 technical bootcamp.
Professional Experience
Software Development Engineer III— Operating at Staff Level
May 2023 – Present- Cross-Domain Integration: Partnered with the Personalization domain to co-build and scale the recommendation engine for Personalized Substitutions, yielding a £2M+ sales uplift via live production A/B testing.
- Cloud Resource Efficiency: Audited and optimized resource allocations for high-traffic core services during AWS-to-Azure cloud migration, securing £440k/year in confirmed savings.
- Developer Enablement: Co-designed a secure, multi-tenant developer platform to build the 'Golden Path' for engineers; currently onboarding the first teams to streamline developer setup.
- Technical Standards: Established patterns for distributed job execution, cloud-agnostic deployment templates, and testing frameworks across core business domains.
- Engineering Enablement: Directly mentored 2 engineers within the domain, accelerating their technical progression and supporting their integration into core systems architecture.
Technical Lead
Nov 2017 – Oct 2022- Continuous Deployment: Led the transition from high-risk manual releases to fully automated Continuous Deployment (CD), fundamentally improving the team's operational rhythm.
- Release Frequency: Helped transition the engineering culture from fear-inducing monthly releases to multiple safe production deployments per day.
- CI/CD Optimization: Designed CI/CD pipelines that reduced release overhead from 4 hours to 15 minutes (94% reduction) with integrated automated tests.
- Infrastructure Savings: Reduced cloud OPEX by £24k/year by containerizing workloads (ECS) and adopting Spot Instances.
- Talent Development: Directly mentored 2 engineers, coaching them on modern DevOps best practices, TDD, and continuous delivery.
Global Exploration
May 2016 – Oct 2017- Solo travel across 14 countries; refined adaptability and cross-cultural communication skills essential for leading distributed, global engineering teams.
Technical Lead
May 2013 – Apr 2016- Agile Transformation: Introduced XP/Scrum practices (Pair Programming, CI), increasing velocity by 30%.
- Global Ad Platform: Founding engineer for the greenfield display ad engine (now Rakuten Marketing Platform); led integration discussions with PriceMinister (France) and Rakuten Brazil.
- Distributed Leadership: Promoted to Lead during the expansion to India; managed technical alignment between Singapore HQ and the new development center.
Application Consultant
Mar 2011 – Apr 2013- Standard Chartered Bank: Optimized API payloads for 'Straight2Bank' mobile app, improving efficiency by 15%.
- John Wiley & Sons: Deployed mobile content services and analytics for the Online Library.
- Optimization: Implemented 'Counter Compliant' traffic monitoring and reporting.
Scope: Standard Chartered Bank: Optimized API payloads for 'Straight2Bank' mobile app, improving efficiency by 15%. | John Wiley & Sons: Deployed mobile content services and analytics for the Online Library. | Optimization: Implemented 'Counter Compliant' traffic monitoring and reporting.
Java Developer (Team Lead)
May 2009 – Feb 2011- Architecture: Co-architected migration of critical hospital systems from COBOL Mainframe to Java Web.
- Framework Design: Built the 'Healthcare Report System', abstracting JMS and printing logic.
- Efficiency: Reduced report creation time from days to hours via meta-programming frameworks.
Scope: Architecture: Co-architected migration of critical hospital systems from COBOL Mainframe to Java Web. | Framework Design: Built the 'Healthcare Report System', abstracting JMS and printing logic. | Efficiency: Reduced report creation time from days to hours via meta-programming frameworks.
Java Developer (Team Lead)
Jan 2008 – Apr 2009- Inventory Control: Architected forecasting algorithm using historical data trends.
- Payroll: Implemented complex 'Last Pay' computation module for a major broadcasting network.
- Leadership: Led a team of 4 in SDLC cycles.
Scope: Inventory Control: Architected forecasting algorithm using historical data trends. | Payroll: Implemented complex 'Last Pay' computation module for a major broadcasting network. | Leadership: Led a team of 4 in SDLC cycles.
Ventures & Open Source
Spring Modulith Contributor
Open SourceBuilding modular monoliths in Spring Boot.
NextAuth.js (Auth.js) Contributor
Open SourceStandard authentication solution for Next.js.
Spring Framework Contributor
Open SourceMost popular Java application framework.
KEDA Contributor
Open SourceKubernetes Event-driven Autoscaling components.
JupiterGoals AI
Creator & Principal ArchitectPersonal AI Agent for goal decomposition. (Applied AI Research)
ReadySetMarry
Creator & Lead EngineerMultilingual wedding platform. Currently in Closed Beta to manage media egress costs.
Zero-to-One Mentorship (OAH Architecture)
Mentorship & CommunityMentored a non-technical professional from zero coding knowledge to designing, developing, and launching a custom production portfolio website before the AI era.
Android Dev Community
Community LeadFounded community to foster knowledge sharing in early Android ecosystem.
Building modular monoliths in Spring Boot.
Standard authentication solution for Next.js.
Most popular Java application framework.
Kubernetes Event-driven Autoscaling components.
Personal AI Agent for goal decomposition. (Applied AI Research)
Multilingual wedding platform. Currently in Closed Beta to manage media egress costs.
Mentored a non-technical professional from zero coding knowledge to designing, developing, and launching a custom production portfolio website before the AI era.
Founded community to foster knowledge sharing in early Android ecosystem.
Certifications
- Agentic AIDeepLearning.ai • Dec 2025
- Generative AI with Large Language ModelsCoursera • Dec 2025
- Practical Guide to KubernetesEducative • Jan 2023
- Distributed Systems for PractitionersEducative • Jan 2023
- Data Scientist ToolboxCoursera • Oct 2014
- Oracle Certified Professional, Java SE 6Oracle • Mar 2012
- Agentic AI (Dec 2025)
- Generative AI with Large Language Models (Dec 2025)
- Practical Guide to Kubernetes (Jan 2023)
- Distributed Systems for Practitioners (Jan 2023)
- Data Scientist Toolbox (Oct 2014)
- Oracle Certified Professional, Java SE 6 (Mar 2012)
Education
Informatics International College
Bachelor of Science in Computer Science
2004 – 2007
Leadership Endorsements
"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."
"Jupi is a professional programmer with multiple strong technical fields... He wrote both the frontend and the backend. He always understands requirements quickly... Our team had to speak in Japanese from time to time, but he understood almost 50% of what we said by taking notes... He is passionate about his work and technology, always thinking about his teammates."
Detailed case studies and interactive portfolio available at walkingjupiter.com
Start a Conversation
Open to Staff+ engineering leadership, advisory, and coffee chats.
Open to technical exchanges and coffee chats.