👨🏻‍💻 postech.work

Senior Web Developer

CÔNG TY TNHH FINAN • 🌐 In Person

In Person Posted 3 days, 2 hours ago

Job Description

Top 3 reasons to join us

Dynamic work environment with experienced leaders

Competitive salary,benefits package including ESOP

Career advancement opportunities

Job description

Role Overview

We are looking for a Senior Web Developer whose primary responsibility is building high-quality, scalable web applications.

AI is a supporting capability, used to enhance features when relevant—not the core focus of the role.Responsibilities

Web Development (Core \~75%)

Design, build, and maintain large-scale web applications using React, Next.js, and TypeScript.

Define and maintain frontend architecture (routing, state management, data fetching, component standards).

Optimize performance, SEO, accessibility, and Core Web Vitals.

Conduct code reviews, enforce best practices, and mentor junior/mid developers.

Collaborate closely with Product, Design, and Backend teams to deliver reliable features.

AI Integration (Extension \~25%)

Integrate AI-powered features at the application level, such as:* Chat or assistant UI

Smart search or suggestions

Auto-summary or form assistance

Work with existing AI APIs (e.g. OpenAI, Azure OpenAI, Gemini).

Design user experiences with AI fallback and error handling.

Manage basic AI concerns: latency, cost, and rate limits.

Your skills and experience

Web (Must-have)

3+ years of professional experience in Web Development.

Strong expertise in React and TypeScript; experience with Next.js is highly preferred.

Solid understanding of browser rendering, HTTP, caching, and state management.

Hands-on experience with SSR / ISR / CSR strategies.

Experience with testing, code reviews, and production-grade frontend systems.

AI (Practical level)

Prior experience integrating AI into a web application (even one or two features is sufficient).

Ability to work with LLM APIs and handle streaming responses.

Understanding of AI limitations (hallucinations, latency) and how to handle them in UX.

Nice to Have

Design systems, monorepos, or micro-frontend experience.

Basic familiarity with RAG or embeddings.

Experience building SaaS or fintech products.

What This Role Is NOT

Not an ML or data science role.

No model training or AI research required.

AI supports the web product—not the other way around.

Why you'll love working here

Company’s Benefits:* Full range of insurance policies...

Transportation and meal allowances are provided.

Additional perks: 13th-month Salary, Holiday Bonuses, Birthdays, Independence Day, and Team-building Activities.

Access to labor union benefits and special occasion gifts.

Thriving and energetic work environment, led by experienced professionals.

Opportunities to enhance skills through diverse challenges and actively contribute to shared objectives.

Flexible work hours, daily provisions of snacks, coffee,…

Events \& Activities:* Women’s day

Mid-autumn Festival

Christmas

International Children's Day

Year End Party

Company’s annual trip

Team building monthly

Sports clubs: Football, Badminton

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