Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am a dedicated and results-oriented software engineer with a relentless commitment to meticulous design and impeccable craftsmanship. With a proven track record of delivering high-quality solutions, I bring a blend of technical expertise and creative vision to every project. I have led backend development, created Salesforce integrations, and implemented CI/CD pipelines while working on multiple projects. I have successfully introduced Agile methodologies and mentored junior developers, improving team performance and collaboration. I have extensive experience in modern tech stacks including .NET Core, microservices, Azure, AWS, Docker, and React. I am passionate about refactoring legacy systems, performance tuning, and delivering scalable cloud-based applications.…I am a dedicated and results-oriented software engineer with a relentless commitment to meticulous design and impeccable craftsmanship. With a proven track record of delivering high-quality solutions, I bring a blend of technical expertise and creative vision to every project. I have led backend development, created Salesforce integrations, and implemented CI/CD pipelines while working on multiple projects. I have successfully introduced Agile methodologies and mentored junior developers, improving team performance and collaboration. I have extensive experience in modern tech stacks including .NET Core, microservices, Azure, AWS, Docker, and React. I am passionate about refactoring legacy systems, performance tuning, and delivering scalable cloud-based applications.

Keya Xu

Developer, Back-End Developer, DevOps Developer





I am a dedicated and results-oriented software engineer with a relentless commitment to meticulous design and impeccable craftsmanship. With a proven track record of delivering high-quality solutions, I bring a blend of technical expertise and creative vision to every project. I have led backend development, created Salesforce integrations, and implemented CI/CD pipelines while working on multiple projects. I have successfully introduced Agile methodologies and mentored junior developers, improving team performance and collaboration. I have extensive experience in modern tech stacks including .NET Core, microservices, Azure, AWS, Docker, and React. I am passionate about refactoring legacy systems, performance tuning, and delivering scalable cloud-based applications.…I am a dedicated and results-oriented software engineer with a relentless commitment to meticulous design and impeccable craftsmanship. With a proven track record of delivering high-quality solutions, I bring a blend of technical expertise and creative vision to every project. I have led backend development, created Salesforce integrations, and implemented CI/CD pipelines while working on multiple projects. I have successfully introduced Agile methodologies and mentored junior developers, improving team performance and collaboration. I have extensive experience in modern tech stacks including .NET Core, microservices, Azure, AWS, Docker, and React. I am passionate about refactoring legacy systems, performance tuning, and delivering scalable cloud-based applications.

Available to hire

I am a dedicated and results-oriented software engineer with a relentless commitment to meticulous design and impeccable craftsmanship. With a proven track record of delivering high-quality solutions, I bring a blend of technical expertise and creative vision to every project. I have led backend development, created Salesforce integrations, and implemented CI/CD pipelines while working on multiple projects.

I have successfully introduced Agile methodologies and mentored junior developers, improving team performance and collaboration. I have extensive experience in modern tech stacks including .NET Core, microservices, Azure, AWS, Docker, and React. I am passionate about refactoring legacy systems, performance tuning, and delivering scalable cloud-based applications.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Senior Software Engineer at nib Group

September 1, 2024 - Present

Working as a Senior Software Engineer on a contract basis, contributing to complex software projects involving .Net technologies, microservices, AWS, and React. Responsible for backend development, performance tuning, and production support.

Tech Lead & Scrum Master at New Image International

August 31, 2024 - August 4, 2025

Led backend development for multiple projects including Salesforce integrations and CI/CD pipelines under tight schedules. Introduced and acted as Scrum Master, transitioning the team from Waterfall to Agile practices with effective sprint ceremonies and velocity tracking. Mentored junior developers and helped hire senior developers.

Senior Software Engineer at Woolworths

January 31, 2024 - August 4, 2025

Led backend development, design of microservices, and CI/CD pipeline creation. Tuned onboarding processes from 4 seconds to 200ms. Managed multiple projects concurrently. Refactored legacy monolith systems into microservices. Created new Salesforce integrations and pipelines. Mentored junior developers and production support.

Senior Software Engineer at Kiwibank

July 31, 2023 - August 4, 2025

Key member of the Loyalty and Subscription team. Created the new Onecard enrollment page improving client signup experience. Worked on architecture design and Backend services with .Net Core and Azure. Mentored junior developers and supported production environments.

Tech Lead at Woolworths

November 30, 2022 - August 4, 2025

Rewrote a legacy platform from MVC monolith to microservices. Designed architecture to simplify onboarding new team members. Built new CI/CD pipelines from scratch using Azure DevOps and pipelines. Decommissioned old pipelines and introduced Agile practices improving team collaboration and delivery.

Senior Analyst Developer at FNZ

May 31, 2022 - August 4, 2025

Developed backend microservices and pipelines. Managed ETL product releases and performance monitoring. Mentored junior team members.

Senior Software Engineer at Xero

March 31, 2022 - August 4, 2025

Responsible for the creation and maintenance of backend services, microservices and pipelines from scratch. Led production support and mentoring juniors.

Senior API Developer at Kiwibank

October 31, 2021 - August 4, 2025

Created several new microservices and pipelines for a new banking platform using Kafka, Salesforce and FICO. Decommissioned the old platform. Mentored junior developers.

Senior Software Developer at Xplor

April 30, 2021 - August 4, 2025

Worked on refactoring large monolithic systems into microservices and creating DSL frameworks to enable business logic creation by clients. Mentored junior developers and supported production.

Software Engineer at Aderant

July 1, 2013 - Present

Engaged in software development using .Net and related technologies.

Senior Software Engineer at nib Group

September 1, 2024 - Present

Working as a senior software engineer on contract, leading backend and microservice developments, creating salesforce integrations, building CI/CD pipelines, and performance tuning large projects. Worked on decomposing monolithic systems to microservices and mentoring junior developers.

Tech Lead & Scrum Master at New Image International

August 31, 2024 - August 4, 2025

Led backend development and created Salesforce integration and CI/CD pipelines under tight deadlines. Introduced Agile methodologies to the team including standups, sprint retrospectives, sprint reviews, velocity tracking and mentoring junior members. Acted as the tech interviewer and helped hire senior developers.

Senior Software Engineer at Woolworths

January 31, 2024 - August 4, 2025

Led backend development of microservices and CI/CD pipeline creation, co-ordinated performance tuning project reducing onboarding process time significantly, refactored large monolithic systems into smaller functions, and worked on multiple projects simultaneously.

Senior Software Engineer at Kiwibank

July 31, 2023 - August 4, 2025

Key member of the Loyalty & Subscription team creating Onecard enrollment pages and product support, worked with architects on backstage projects, mentored junior developers, and refactored legacy systems.

Tech Lead at Woolworths

November 30, 2022 - August 4, 2025

Re-wrote legacy platform from monolith to microservices, created architecture for new microservices for easy understanding by new team members, introduced Agile, created new CI/CD pipelines, and mentored junior members.

Senior Software Engineer at Kiwibank

November 30, 2022 - August 4, 2025

Onboarded quickly to a full job management system, created new CI/CD pipelines using TeamCity and Spinnaker, reverse engineered and rewrote signup service from JavaScript Heroku app to .NET 6 microservice on AWS, set up performance monitoring and logging services for microservices, maintained mobile banking API, and mentored junior developers.

Senior Analyst Developer at FNZ

April 30, 2022 - August 4, 2025

Rewrote notification system creating microservices and CI/CD pipelines from scratch, enabled faster migration from monolith to microservices, production support and mentoring junior developers, created pipelines for new microservices, and production support.

Senior Software Engineer at Xero

March 31, 2022 - August 4, 2025

Worked on various back-end and microservice projects with modern tech stack, production support, and mentoring junior developers.