Senior Full-Stack Developer (Javascript, Playwright)

8Seneca

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19F, Coninco Tower 4 Tôn Thất Tùng, Dong Da, Ha Noi

Hybrid

Posted 31 days ago

Skills:

English NodeJS ReactJS JavaScript HTML TypeScript

Job Expertise:

Fullstack Developer

Job Domain:

IT Services and IT Consulting

Top 3 reasons to join us

13th bonus salary, project bonus
Health insurance
Annual leave: 14 days/year + 3 days/year Christmas

Job description

We’re looking for a Senior Full-Stack JavaScript / TypeScript Developer to build and scale the test automation infrastructure for SAMO – our system for managing assets and operations – while leading a small team of junior–mid JavaScript developers and staying hands-on with the code.

Key Responsibilities

Test Automation

Develop and maintain our internal libraries samo-demo-factory-bot and samo-factory-bot for test data generation and automation.
Create templates for new features, add new capabilities (user creation, security configuration, codelists, attachments, geometry…), and contribute to end-to-end tests.
Ensure the test infrastructure is well-structured, maintainable, and scalable.

Full-Stack Web Development

Design and develop both front-end and back-end architecture for web applications.
Implement interactive, responsive UIs (HTML/CSS/JS, modern frameworks).
Build back-end services using Node.js, servers, databases, and APIs.
Collaborate with UX/UI designers to implement features.
Meet technical and client requirements and maintain clear documentation.

Leadership

Set up the project correctly and define best practices.
Lead and mentor junior–mid developers.
Review code, make architecture decisions, and stay hands-on with development.

Your skills and experience

5+ years’ experience with TypeScript / JavaScript and Node.js.
Proficiency in HTML, CSS, JavaScript and familiarity with modern JS/TS frameworks.
Hands-on experience with REST APIs and Playwright (or similar browser automation tools).
Ideally, experience with CucumberJS/BDD frameworks and test data factories.
Prior experience leading or mentoring developers.
Strong problem-solving, organizational, and English communication skills.