INNOMIZE is seeking a Senior Full-Stack Developer with LLM/AI experience to help design, build, and scale our cloud-native AI platform. You will work across backend services, AI pipelines, and modern frontend interfaces, collaborating closely with product and engineering teams to deliver high-quality solutions.
This role is hands-on, technically deep, and suited for engineers who enjoy solving complex problems across systems, data, and AI.
What You'll Be Doing:
- Design and build LLM-powered APIs using Python (FastAPI) and JavaScript/TypeScript (NestJS).
- Develop high-quality React applications, including real-time and AI-assisted user experiences.
- Implement streaming and real-time features using SSE and WebSockets.
- Work with PostgreSQL, including performance tuning and vector-based search.
- Deploy and operate services on AWS (Lambda, ECS, S3, API Gateway).
- Integrate and operate LLM-powered features using OpenAI and Anthropic Claude APIs.
- Optimize prompts, token usage, latency, and cost across multiple LLM providers.
- Evaluate and select models for different use cases (accuracy, speed, cost).
- Write clean, testable, and maintainable code following solid principles.
- Participate in system design, architecture decisions, and technical reviews.
- Mentor junior engineers and contribute to a strong engineering culture.
Your Skills & Experience:
- Bachelor's degree in Computer Science or equivalent practical experience.
- 5+ years of professional software engineering experience.
- Comfortable working with both backend (JavaScript / Python) and frontend (Angular / React preferred) technologies.
- Strong PostgreSQL knowledge (query optimization, indexing, vector extensions).
- Comfortable with Docker, CI/CD, and production debugging.
- Working knowledge of AWS or other cloud platforms.
- Practical experience working with LLM APIs (OpenAI, Anthropic, or similar).
- Understanding of embeddings, vector search, and RAG architectures.
- Awareness of multi-model and multi-provider LLM strategies
- Senior-level ownership and accountability.
- Good at English communication.
WORKING WITH US
Our Company believes that motivation & personality of the employees are the only shortcut to the promotion of the corporation and contributions to the society. We will try our best to create a corporate environment where all employees can realize their dreams and goals. Featured benefits include:
- A Flexible, Dynamic, and Full-equipped Working Environment where Innomizers can blast the fun in work, break the old boxes with creativity, and be ready for the transformation.
- Work-life balance 40-hr per week from Mon to Fri.
- Overtime is rarely required, you will get paid for the extra work (up to 300%).
- Up to 16-day and 2-day probation leave per year.
- Annual performance appraisal (twice / year) and 13-month salary.
- Health Insurance package (PVI).
- Special bonus on Public holidays: 1/1, 30/4&1/5, 2/9, Hung Kings (10/3).
- Excellent Benefits: Project bonus, Team bonus, Birthday gift, Tet gift ...
- Exciting internal events: Happy hour, Company trips, Year-end Party, Team building, Sports Clubs.
- Modern and cozy kitchens with plenty of free noodles, coffee/tea bars, and fresh fruits every day.
- Training activities weekly: English, Management, Soft Skills, Technical skills, Certificate fee.
- Career conversation and growing opportunities with the Promotion Program.
