Freelancer profile translated to English.
Back to original languageAbout Khoa
Senior Java developer and tech lead with over ten years of experience designing reliable backend systems and microservices in fintech, banking, and software publishing. Committed to clean code, TDD, CI/CD, and pragmatic delivery, with experience leading integrations and mentoring teams.
English
Fluent
Vietnamese
Native or bilingual
Can work on-site
Limeil-Brévannes (up to 50km)
Experience
- AmundiSenior Java DeveloperOctober 2024 - Today (1 year and 9 months)Paris, FranceCore backend contributor to the Employee Savings and Retirement product, working on NOEE business services, APIs, delivery quality, and production reliability.Delivered backend fixes and enhancements on critical Employee Savings workflows, including M1ST routing, reporting, payment/transfer services, and operational processing.Improved Jenkins CI/CD with quality gates tailored for MRs, targeted regression execution, commit validation, and safer delivery controls.Enhanced code quality through SonarQube remediation, API logging fixes, and OpenAPI/Swagger improvements.Built and stabilized integration tests backed by Oracle, SQL initialization scripts, and regression coverage for key business services.Investigated a priority SMS latency in production flows, isolating the cause to a bottleneck on the producer side before JMS by correlating Oracle databases, Splunk logs, Grafana dashboards, ActiveMQ, and Java execution traces.Contributed to developer productivity by standardizing delivery workflows and AI-assisted engineering practices integrated into Jira and Confluence.
- BVNKSenior Java DeveloperBANKING AND INSURANCEJune 2022 - October 2024 (2 years and 4 months)Fintech startup enabling businesses to send, receive, and convert any currency (crypto or EUR/USD) at internet speed. Integration Squad: integrations with third-party APIs to create virtual IBANs and send money via SEPA, SWIFT, etc. Team: 4 Java back-end developers, 1 PO.Developed new EUR payment integrations (Modulr, EasyEP, LHV).Designed the architecture of a new microservice to integrate the LHV API (feature lead, managing communication with business and third parties).Implemented a Spring State Machine for a complex IBAN creation flow.Analyzed and fixed production bugs; assisted in onboarding new team members.
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4