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I am a seasoned software engineer with 20+ years of experience designing, building, and maintaining robust backend systems and cloud-native services. I specialize in scalable RESTful APIs, distributed architectures, and modern DevOps practices, with hands-on expertise across Java, Python, JavaScript, TypeScript, and Linux-based environments. I enjoy mentoring junior engineers, collaborating across product, mobile, and infrastructure teams, and driving high-quality code through agile ceremonies. I’m committed to security, reliability, and continuous learning, and I frequently contribute to open-source projects and design open APIs for real-world impact.…I am a seasoned software engineer with 20+ years of experience designing, building, and maintaining robust backend systems and cloud-native services. I specialize in scalable RESTful APIs, distributed architectures, and modern DevOps practices, with hands-on expertise across Java, Python, JavaScript, TypeScript, and Linux-based environments. I enjoy mentoring junior engineers, collaborating across product, mobile, and infrastructure teams, and driving high-quality code through agile ceremonies. I’m committed to security, reliability, and continuous learning, and I frequently contribute to open-source projects and design open APIs for real-world impact.

Simon Xu

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I am a seasoned software engineer with 20+ years of experience designing, building, and maintaining robust backend systems and cloud-native services. I specialize in scalable RESTful APIs, distributed architectures, and modern DevOps practices, with hands-on expertise across Java, Python, JavaScript, TypeScript, and Linux-based environments. I enjoy mentoring junior engineers, collaborating across product, mobile, and infrastructure teams, and driving high-quality code through agile ceremonies. I’m committed to security, reliability, and continuous learning, and I frequently contribute to open-source projects and design open APIs for real-world impact.…I am a seasoned software engineer with 20+ years of experience designing, building, and maintaining robust backend systems and cloud-native services. I specialize in scalable RESTful APIs, distributed architectures, and modern DevOps practices, with hands-on expertise across Java, Python, JavaScript, TypeScript, and Linux-based environments. I enjoy mentoring junior engineers, collaborating across product, mobile, and infrastructure teams, and driving high-quality code through agile ceremonies. I’m committed to security, reliability, and continuous learning, and I frequently contribute to open-source projects and design open APIs for real-world impact.

Available to hire

I am a seasoned software engineer with 20+ years of experience designing, building, and maintaining robust backend systems and cloud-native services. I specialize in scalable RESTful APIs, distributed architectures, and modern DevOps practices, with hands-on expertise across Java, Python, JavaScript, TypeScript, and Linux-based environments.

I enjoy mentoring junior engineers, collaborating across product, mobile, and infrastructure teams, and driving high-quality code through agile ceremonies. I’m committed to security, reliability, and continuous learning, and I frequently contribute to open-source projects and design open APIs for real-world impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Chinese

Advanced

Work Experience

Senior Software Engineer (Contract) at ChargeNet

September 1, 2025 - January 31, 2026

Designed, developed, and deployed backend services enabling ISO 15118 EV Plug & Charge functionality for ChargeNet's national charging network; built Spring Boot Java RESTful APIs in AWS EKS; integrated with Hubject OCPP 1.0 APIs; implemented OAuth token flow; structured relational data models for AWS RDS MySQL; established GitHub CI/CD pipelines; created comprehensive JUnit/Mockito/WebFlux test suites; collaborated with product, mobile, and infra teams; designed Open API docs using Springdoc and Swagger.

Senior Software Engineer (Contract) at Transpower

July 1, 2024 - July 31, 2025

Designed, developed, and deployed backend services for electricity grid modelling, transmission pricing, finance and investment systems; Spring Boot Java RESTful APIs in on-prem OpenShift with Kong API gateway; Docker images for ROSA OpenShift on AWS; AWS Lambda functions (JavaScript), S3, PostgreSQL; Kafka for messaging; Grafana and Prometheus for monitoring; GitLab CI/CD pipelines; Open API design/docs with Springdoc/Swagger.

Senior Software Engineer (Contract) at Flux Federation

October 1, 2023 - June 30, 2024

Design, develop, and deploy backend services for electricity grid modelling, transmission pricing, finance and investment systems; Spring Boot Java RESTful APIs in on-prem OpenShift with Kong API gateway; Python Docker images for jobs running in RO SA (OpenShift on AWS); AWS Lambda (JavaScript), S3, PostgreSQL; Kafka for messaging; Grafana and Prometheus for monitoring; GitLab CI/CD pipelines; Open API design/docs with Springdoc/Swagger.

Senior Full-Stack Developer (Contract) at Quotable Value

March 1, 2023 - September 30, 2023

Design, develop, and deploy backend services for land and property reporting systems; Java RESTful APIs in AWS ECS/EKS with Amazon API Gateway; React (TypeScript) frontend; AWS Lambda (Python), S3, MS-SQL; AWS SQS for messaging; Grafana and Prometheus for monitoring; GitLab CI/CD pipelines; Open API design/docs with Springdoc/Swagger.

Senior Software Consultant (Contract) at Section 6

June 1, 2021 - November 30, 2021

Designed, developed, and integrated backend services for the Vodaphone DX website; Quarkus Java RESTful APIs in on-prem OpenShift with Red Hat 3scale API gateway; Apache Camel for system integration; integration with various third-party APIs (3PL, warehouse, payment, etc.); Argo CD CI/CD pipelines; internal project of immutable, self-contained automation packages using OCI container images (Rust, Python, Ansible, Terraform).

Principal Staff at Oracle

September 1, 2013 - February 28, 2021

Led design, development, and maintenance of the Oracle Linux test automation platform (Java, Python, Shell Script, Oracle DB, Jenkins); migrated Linux test automation from on-prem to OCI; designed and maintained UEK (Unbreakable Enterprise Kernel) and OCI images; mentored junior engineers; managed Jenkins CI/CD pipelines; contributed to open source projects such as LTP and lk-tools; drove Linux kernel test automation and security patching.

Linux Kernel Team Lead at Asianux

August 1, 2008 - November 30, 2010

Led packaging, build, and release engineering for Linux Rocky Linux; led security mechanisms and kernel patches; migration of large-scale systems (e.g., State Grid) to Linux; mentored junior engineers; contributed to kernel upgrades and upstream work.

Senior Software Engineer at Linx Technology

January 1, 2004 - December 31, 2007

Design, development, and maintenance of Linux kernel test automation platform; Linux Rocky Linux, kernel and user-space tooling; migration and upgrade work; mentored peers.

Assistant Researcher at Academy of Medical Sciences

January 1, 2003 - December 31, 2004

Customized and rebuilt RH EL3 kernel and related tooling; developed Linux kernel modules; processed medical data workflows; built web site and backend tools for protein analysis support.