Lead / Senior Fullstack Engineer

ABOUT US
At Gradion, we are the strategic partner for ambitious businesses, helping them achieve breakthrough growth through Digital Innovation and Deep Tech.
With a global vision and an AI-first approach, we enable clients to reshape strategies, optimize systems, and adopt cutting-edge technologies to create sustainable value.
From AI and data to cybersecurity, robotics, and large-scale enterprise platforms, Gradion designs practical solutions that lay the foundation for the next generation of billion-dollar companies.
OUR FACTS &
FIGURES:
23+ years of expertise - Gradion builds digital platforms & deep-tech solutions
3 continents: Asia, Europe and Africa
300+ specialists across 7 countries Vietnam, Singapore, Thailand, Saudi Arabia, Germany, Egypt and Australia
100+ enterprise clients, including several unicorns (e.g., Alaiko, HomeToGo, Roadsurfer)
Vietnam's Best IT Company - recognized by Joboko for 8 consecutive years, including 2 consecutive years of ranking #1 (2024 and 2025)
ISO 27001
About The Role
We are looking for a pragmatic, adaptable, and seasoned Lead / Senior Fullstack Engineer to join our engineering team.
This is a hands-on individual contributor role. You'll design systems, write code, prototype ideas, debug the failures nobody else can reproduce, review the implementations that matter, and work alongside engineers and Tech Leads wherever deeper expertise is needed.
Your influence here won't come from managing people. It comes from the systems you improve, the technical decisions you shape, and the engineers who get better for having worked with you.
⚡Modern AI-Native Workflow
We're building an AI-first engineering organization, and we want to get further than AI-assisted coding. You'll work with LLMs, AI APIs, agents, RAG, and evaluation, applied to problems in our own engineering and in the products we build for clients.
We're not trying to put AI into everything. We want to find the places where it pays off, build those properly, and write down what we learn so other teams can pick it up.
⚡Technology Ecosystem &
Philosophy
Our core platforms and products span a diverse tech ecosystem. We do not expect you to know all of these technologies, but we do expect you to have successfully navigated multiple tech stacks throughout your career and brought strong architectural insights along the way.
Key Responsibilities
Own architecture and design decisions on the hardest systems in our portfolio
Write code, prototype, and debug alongside the teams rather than from a distance
Review the implementations that carry the most risk, and raise the bar through the work itself
Find where AI pays off, build it properly, and turn what works into something other teams can reuse
Work with Tech Leads on scalability, performance, reliability, and technical debt
Evaluate new technology, prototype it, make a call, and write down the reasoning
Work with clients and non-engineering stakeholders to turn vague problems into technical direction
What We Look For
7+ years building and running production software, and still writing code today
Depth in system design and architecture: scalability, performance, distributed systems, reliability
A track record of setting technical direction across several teams, or on one large and long-running program
Quick to find your way around an unfamiliar codebase. Deep in at least one language and comfortable in several
Hands-on experience with LLM-based systems. Things you have built, not only read about: AI APIs, prompt and context design, and at least one of agents, RAG, or evaluation
Judgment about when not to build something, when to pay down debt, and when to say no
The ability to mentor senior engineers and change their minds without formal authority
Comfort working directly with clients and non-engineering stakeholders
A habit of following where the field is going
Nice to have
Production AI systems at scale: evaluation harnesses, guardrails, cost and latency tuning
Depth in one of our domains: data platforms, cybersecurity, robotics, enterprise systems
Internal tooling or platform work that made other teams faster
Open source contributions, conference talks, or technical writing
Why you'll love working here?
🏆 Join Vietnam's Best IT Company - Gradion Vietnam (formerly NFQ Vietnam) was recognized by Joboko for 8 consecutive years, including 2 successive years as the Winner. Work with some of the best minds in the industry and be part of a company that's redefining how businesses scale through technology.
🌍 Career Growth &
Leadership Development - Work closely with our leadership team, gain mentorship from experienced executives, and have direct exposure to high-level strategic decisions. Your growth is limitless, as long as you're ready to step up, opportunities will always be there for you.
🚀 AI-First Engineering &
Strategic Consulting - Our engineering culture integrates AI as a core driver of design, development, and optimization - not an add-on. As a forward-thinking consultancy, we go beyond traditional engineering, combining technical excellence with a strategic mindset to deliver transformative solutions for ambitious businesses.
💰 Competitive Compensation - We believe great talent deserves great rewards. Expect an attractive salary, performance-based bonuses, and a benefits package that reflects your impact. We value talent over salary budgets - exceptional contributions deserve exceptional rewards.
✨
And Many More Benefits to Explore! But most importantly, a healthy work-life balance and an environment where you can thrive professionally and personally. Including:
Performance bonus of up to 2 months' salary
Performance review twice a year, so your growth is recognized and rewarded
Premium healthcare for you, plus an annual health check
15 days of annual leave
Full salary during probation
Hybrid working for real flexibility
Monthly Happy Hour and Community Tech activities
Work on global projects as part of an innovation team that shapes ideas for the hi-tech world
Diverse training programs to keep you growing
Working time: Monday -
Friday (9 AM - 6 PM)
Location
Ho Chi Minh office: Podium Floor, Sapphire 2 tower, 92 Nguyen Huu Canh Street, Thanh My Tay Ward, Ho Chi Minh City, Vietnam
Da Nang office: 23rd Floor, G8 Golden Building, 65 Hai Phong, Hai Chau Ward, Da Nang City, Vietnam
Remote Work: Candidates based in Hanoi or Can Tho are welcome to work remotely
According to General Data Protection Regulation (GDPR), Singapore's Personal Data Protection Act (PDPA), and Vietnam's Decree 13/2023/ND-CP, while also ensuring compliance with other applicable local data protection laws in the jurisdictions where we operate, including but not limited to Vietnam, Thailand, Egypt, Singapore, Germany, and Saudi Arabia, Gradion applies the "Personal Data Protection Policy" to all candidates to ensure compliance with the laws.
By submitting your application to Gradion, you agree to allow us to process your provided information in accordance with the Personal Data Protection Policy that you have carefully read, understood, and agreed to in its entirety at Link.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.