Frontend Engineer (JavaScript/ReactJS) - Captcha & SmartID

ABOUT CLIENT

Our client is a top company in internet services and digital content

JOB DESCRIPTION

Improve and expand services
Create and execute Captcha SDK
Carry out research on CAPTCHA technologies using AI

JOB REQUIREMENT

At least 4 years of front-end development experience using ReactJS, Next.js, JavaScript, and HTML/CSS
In-depth knowledge of JavaScript and core web technologies
Practical experience in cross-browser and cross-device development
Enthusiasm for discussing frontend system stability and scalability
Strong grasp of asynchronous request handling, AJAX, Node.js, and SSR
Understanding of data structures, algorithms, and distributed service architecture
Familiarity with front-end performance optimization and debugging tools (e.g., Chrome, Safari DevTools)
Proficiency in CI/CD pipelines and unit testing frameworks
Proven track record of collaborating across multiple teams to deliver high-quality products
Prior experience in developing SDKs or CAPTCHAs, or a strong willingness to learn
Familiarity with integrating code obfuscation and protection techniques into client-side applications
Background in developing video content platforms, especially short-form or media-rich services
Experience working on large-scale, high-traffic frontend systems

WHAT'S ON OFFER

Work-life balance: Access to offices in central locations with flexible working options, as well as increasing annual leave entitlement based on years of service.
Competitive income package: Annual performance reviews and bonus incentives available.
Learning and development opportunities: Budget allocations for language and technology learning, as well as a monthly book budget.
Healthcare plan: Premium health insurance for employee and two family members, annual health checks, and premium gym membership.
Employee engagement activities: Support for team engagement activities within a positive and enjoyable work environment.
Additional benefits: One-time allowance for setting up a home office, as well as work dedication bonuses.

CONTACT

PEGASI – IT Recruitment Consultancy | Email: recruit@pegasi.com.vn | Tel: +84 28 3622 8666
We are PEGASI – IT Recruitment Consultancy in Vietnam. If you are looking for new opportunity for your career path, kindly visit our website www.pegasi.com.vn for your reference. Thank you!

Job Summary

Company Type:

Product

Technical Skills:

Frontend, Javascript, ReactJS

Location:

Ho Chi Minh - Viet Nam

Working Policy:

Salary:

Negotiation

Job ID:

J00775

Status:

Active

Related Job:

Senior Staff Engineer

Ho Chi Minh - Viet Nam


Product

  • NestJS
  • Angular
  • Typescript

Revamp and streamline key components throughout the Angular 20 + NestJS codebase. Recognize and integrate architectural enhancements such as modularization, domain distinction, and shared service boundaries. Work closely with the CTO to refine product architecture without disrupting release schedule. Guarantee system efficiency, data integrity, and sustainability through improved design. Analyze crucial code pathways and mentor others in cutting-edge Angular and TypeScript methodologies. Introduce practices that elevate testability, deployment security, and developer productivity. Engage in product design conversations to synchronize engineering endeavors with actual user requirements.

Negotiation

View details

Software Architect

Others - Viet Nam


Outsourcing company

  • Architect
  • NodeJS
  • Cloud
  • Frontend

Lead the development of scalable full-stack applications. Optimize database schemas and queries to support secure, high-performance systems with strong data integrity. Make key architectural decisions that balance scalability, performance, maintainability, and developer experience, and mentor engineers on best practices across the stack. Incorporate DevOps into the development lifecycle by managing CI/CD pipelines and overseeing infrastructure-as-code. Plan, design, and implement cloud infrastructure using cloud services to ensure system availability, scalability, and cost efficiency. Work with cross-functional teams to define system architecture, align on technical direction, and ensure architectural decisions support product goals and timelines. Continuously explore, assess, and adopt modern tools, frameworks, and best practices to enhance engineering productivity, code quality, and system resilience.

Negotiation

View details

Senior Design Verification Engineer

Ho Chi Minh - Viet Nam


Semiconductor

  • Chip Verification

IP/SOC Design Verification: Perform verification of IP and SoC-level designs to ensure functional correctness and performance. Specification Review: Analyze IP/SOC specifications and architectural documentation to extract key features and define verification requirements. Verification Planning: Develop comprehensive verification plans based on design features and project goals. Testbench Development: Build and maintain reusable, scalable testbenches for simulation and validation. Simulation & Debugging: Execute RTL and gate-level simulations, perform failure analysis, and drive coverage analysis and closure. Methodology & Flow: Contribute to the implementation and continuous improvement of design verification methodologies, tools, and workflows.

Negotiation

View details