I’m Juan Karis, a senior full stack developer with 10+ years of experience building scalable software across the automotive and technology space in Singapore and across the Asia-Pacific region. I specialize in connected-car and software-defined vehicle (SDV) platforms, with hands-on work spanning React/TypeScript frontends, cloud-native microservices, and ML services that support vehicle connectivity and fleet operations. I’ve led end-to-end development for multi-tenant fleet management on AWS/GCP, integrated vehicle communications using gRPC/MQTT/REST, and supported OTA update pipelines. Previously, I contributed to Hyundai Pleos Connect infotainment features on Android Automotive OS and worked on embedded infotainment systems using C++, Qt, and Android on embedded Linux—along the way mentoring teams, strengthening CI/CD with Kubernetes, and delivering reliable production systems with measurable improvements in release speed and uptime.

JUAN KARIS

I’m Juan Karis, a senior full stack developer with 10+ years of experience building scalable software across the automotive and technology space in Singapore and across the Asia-Pacific region. I specialize in connected-car and software-defined vehicle (SDV) platforms, with hands-on work spanning React/TypeScript frontends, cloud-native microservices, and ML services that support vehicle connectivity and fleet operations. I’ve led end-to-end development for multi-tenant fleet management on AWS/GCP, integrated vehicle communications using gRPC/MQTT/REST, and supported OTA update pipelines. Previously, I contributed to Hyundai Pleos Connect infotainment features on Android Automotive OS and worked on embedded infotainment systems using C++, Qt, and Android on embedded Linux—along the way mentoring teams, strengthening CI/CD with Kubernetes, and delivering reliable production systems with measurable improvements in release speed and uptime.

Available to hire

I’m Juan Karis, a senior full stack developer with 10+ years of experience building scalable software across the automotive and technology space in Singapore and across the Asia-Pacific region. I specialize in connected-car and software-defined vehicle (SDV) platforms, with hands-on work spanning React/TypeScript frontends, cloud-native microservices, and ML services that support vehicle connectivity and fleet operations.

I’ve led end-to-end development for multi-tenant fleet management on AWS/GCP, integrated vehicle communications using gRPC/MQTT/REST, and supported OTA update pipelines. Previously, I contributed to Hyundai Pleos Connect infotainment features on Android Automotive OS and worked on embedded infotainment systems using C++, Qt, and Android on embedded Linux—along the way mentoring teams, strengthening CI/CD with Kubernetes, and delivering reliable production systems with measurable improvements in release speed and uptime.

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Experience Level

Expert
Expert
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Expert
Expert
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Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

English
Fluent
Chinese
Advanced
Albanian
Fluent

Work Experience

Senior Full Stack Developer (Freelance) at FLD.ONE
April 1, 2024 - Present
Led full-stack development for SDV and connected-car projects using React/Next.js, Node.js, and Python ML services. Served as technical lead for a 5-person remote team, driving sprint planning, code reviews, and architecture decisions. Built a multi-tenant fleet management platform on AWS/GCP supporting 12,000+ connected vehicles and 99.7% uptime. Integrated vehicle APIs (gRPC, MQTT, REST) and implemented OTA update pipelines, reducing release cycles by 40%.
Senior Full Stack Developer at Hyundai Motor Group Innovation Center
April 1, 2021 - March 1, 2024
Developed Pleos Connect infotainment features on Android Automotive OS (AAOS) using Kotlin and Java. Built cloud-native microservices for vehicle connectivity and fleet management using TypeScript/Node.js and Python on AWS and GCP. Contributed to SDV architecture (CODA/E&E) with 42dot and mentored four developers. Implemented CI/CD with GitLab and Kubernetes, reducing release cycles by 35%.
Full Stack Developer at Continental Automotive Singapore Pte Ltd
August 1, 2018 - March 1, 2021
Delivered automotive infotainment HMI functionality for embedded Linux using C++, Qt, and Android. Built backend services in Java and Python for telemetry and diagnostics, including Docker deployments on Azure. Integrated SOME/IP and DDS messaging for real-time vehicle communication and supported ASPICE Level 2 compliance.
Full Stack Developer at Thoughtworks
June 1, 2016 - July 1, 2018
Developed React/TypeScript frontends and Spring Boot REST APIs for logistics and mobility clients. Introduced Jenkins CI/CD and automated testing across JUnit, Jest, and Cypress. Built monitoring solutions with Grafana and Prometheus for production cloud applications.
Full Stack Developer at Thoughtworks Singapore
June 1, 2016 - July 1, 2018
Developed React/TypeScript frontends and Spring Boot REST APIs for logistics and mobility clients. Introduced Jenkins CI/CD and automated testing across JUnit, Jest, and Cypress. Built production monitoring with Grafana and Prometheus for cloud applications.

Education

Bachelor of Science (Computer Science) at National University of Singapore (NUS)
October 1, 2011 - September 1, 2015
Bachelor of Science in Computer Science at National University of Singapore (NUS)
October 1, 2011 - September 1, 2015

Qualifications

AWS Solutions Architect - Associate
January 1, 2023 - August 31, 2026
Certified Kubernetes Administrator (CKA)
January 1, 2022 - August 31, 2026
ASPICE Provisional Assessor
January 1, 2020 - August 31, 2026
Professional Scrum Master (PSM I)
January 1, 2019 - August 31, 2026
AWS Solutions Architect - Associate
January 1, 2023 - August 31, 2026
Certified Kubernetes Administrator (CKA)
January 1, 2022 - August 31, 2026
ASPICE Provisional Assessor
January 1, 2020 - August 31, 2026
Professional Scrum Master (PSM I)
January 1, 2019 - August 31, 2026

Industry Experience

Software & Internet, Computers & Electronics, Manufacturing, Transportation & Logistics, Professional Services