API Integration Engineer (OAuth2 / WS02 / AWS)

TymeX

Ho Chi Minh City, Ho Chi Minh City, Vietnam Hybrid permanent

Posted: December 17, 2025

Quick Summary

We are looking for an API Integration Engineer to join our team in Ho Chi Minh City, Vietnam. The ideal candidate will have experience in API integration, AWS, and OAuth2, with a strong understanding of fintech and scalable infrastructure. The successful candidate will be responsible for automating quality checks, deploying cloud infrastructure, and providing operational tooling and metrics.

Required Skills

Job Description

About TymeX:

TymeX is a fast-scaling fintech platform enabling seamless banking solutions across emerging markets. We blend innovation with scalable tech infrastructure to help millions access secure, intuitive financial services.

Your mission is to embrace continuous integration/deployment in a delivery pipeline that will perform automated quality checks, deploy cloud infrastructure and applications quickly, and provide operational tooling and metrics that can be consumed by development teams. To be successful, you will have a blend of development experience and operational experience that provides a good understanding of the developers you are working with, while also balancing critical systems uptime.

Responsibilities

• Primary job is to do integration work using Java/Python/Golang, REST, SOAP APIs and Identity service.
• Solving complex technical and business problems and learn new technology and frameworks
• Be part of a team that will take full responsibility for the features you own
• Design, develop, test, deploy, monitor and improve, you are responsible for the full life-cycle of your product – build it, own it

Requirements:
What We're Looking For

• 3+ years of experience in backend engineering
• Solid hands-on expertise in Java, Python, OR Golang
• Experience working with API Management platforms like: WSO2 / MuleSoft / Kong – design and development of APIs, guidance on design and development best practices, define strategy for operational procedures such as version control, deployments, monitoring.
• Experience in OAuth2 implementations using any Identity/SSO tools
• API’s designing and modeling using Swagger and API Developer toolkit
• Experience in Installation and configuration of various API product features and capabilities
• Good to have knowledge on Middleware and ESB tools
• Experience working with Amazon Web Service
• Experience working with Observability platform like DataDog / NewRelic
• Good skills in English

Benefits:
• Meal and parking allowance are covered by the company
• Full benefits and salary rank during probation
• Insurances as Vietnamese labor law and premium health care for you and your family without seniority compulsory
• Performance bonus up to 2 months
• 13th month salary pro-rata
• 15-day annual leave+ 3-day sick leave + 1 birthday leave + 1 Christmas leave
• SMART goals and clear career opportunities (technical seminar, conference, and career talk) – we focus on your development
• Values-driven, international working environment, and agile culture
• Overseas travel opportunities for training and working related
• Internal Hackathons and company’s events (team building, coffee run, blue card…)
• Work-life balance 40-hr per week from Mon to Fri

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