Freelancer profile translated to English.
Back to original languageAbout Xu
As a Senior Developer, I have over 10 years of experience in various fields such as Big Data, software development, E-commerce, and Fintech. I have worked for different companies, including the French unicorn Back Market, a tech marketplace company, Talend, a well-known ETL software editor, Société Générale, a large innovative bank, and NeoXam, a specialized FinTech company.
My areas of expertise include designing and delivering scalable and reliable backend services and applications based on cloud technology.
Feel free to contact me if you are interested in my profile.
French
Native or bilingual
Chinese
Native or bilingual
English
Native or bilingual
Can work on-site
Paris (up to 30km)
Experience
- Finance Control TowerCTOSOFTWARE PUBLISHINGAugust 2024 - Today (1 year and 10 months)As CTO of a startup at early-stage, key responsibilities include defining technology strategy, taking the leadership in engineering, developing the product, ensuring platform scalability and reliability and optimise budget.• Led the technical vision and product roadmap for an early-stage Data quality in Finance SaaS platform, positioning the company for rapid growth in the data quality market.• Designed product with head of product and MVPing the PoC.• Architected stateful solution on Azure.• Architected transform and migrate server-less solution from Azure to AWS, reducing the costs by 30%, improve the development efficiency 30%.• Implemented from scratch the product and platform(UI/UX, backend, data engineering, deployment, security etc.).• Deployed DevOps best practices includes infrastructure as code, Gitlab for code centralization, Dev and Prod environment separation.• Maintain weekly delivery policy.• Define engineering rules as deciding/implementing/client validation fast, dynamic sprit, max scaleable as possible, less cost possible.• Noted technical debt, regular reviewed and refactored architecture/code to improve product quality.
- Société GénéraleTech lead / Software ArchitectBANKING AND INSURANCEDecember 2023 - February 2025 (1 year and 2 months)Paris, FranceAs a tech lead in team, my primary goal is to lead public cloud transformation inorder to offer a self-BI service to business department.To achieve this, I have been involved in transversal infrastructure setup,team scope tech stack administration, CI/CD automation, pipeline development,cloud service communicaion, pre-production delivery and support.Standardize implementation, automation, industrialisation and documenta-tion.• PoC to test use case for self-BI from PowerBI to Databricks.Stack : AWS, Databricks,Teradata.• Participate transversal infrastructure setup.Stack : AWS, Terraform, Python.• Team infrastructure administration.Stack : Python.• Hands on data pipeline development in databricks.Stack : Python, Spark, AWS,Databricks.• Microservice implementation for public cloud and internal cloud communicaion.Stack :Java, AWS, AWS Lambda, Python.• CI/CD automation.Stack : Groovy, Kubernetes, CloudBees, Docker.• Participate to prepare the demo.• Decouple the project to sprint plan.• Create technical document for development PC setup.• Mentored junior/confirmed developers.• Work in cross team inside and outside of departement.• Delivered dry run 1 and 2 in pre-production.
- Société GénéraleData Architect / Senior Data EngineerBANKING AND INSURANCEApril 2023 - November 2023 (8 months)Paris, FranceAs a senior data engineer in team, my primary goal is to ensure that batch dataarchitecture, implementation and automation is well delivered.To achieve this, I have been involved in data architecture design, CI/CDautomation, data pipeline implementation, production delivery.In addition to this, I have been working on improving data processingperformance, leading technical initiatives.• Initialize data architecture design with internal technical architects.• Implement data pipeline for ESG project.Stack : Scala, Spark, AWS, Cloudera.• Put in place CI/CD automation.Stack : Groovy, Jenkins, Ansible.• Improve processing performance by monitoring and troubleshooting.Stack : Python,Jenkins, Kafka.• Create architecture design, issue analysis documents to guide development efforts.• Mentored junior data engineers by providing best practices and knowledge with pairprogramming.• Work closely with end users to understand business needs.• Delivered the project in production.
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Education
- Master’s Degree (Bac+5)University of Paris Denis Diderot (Paris 7)2016Algorithm and Software Engineering
- Bachelor’s degree (Bac+3)Hangzhou Dianzi University, China2011Software Engineering