Senior Full Stack Developer (Generative AI Specialist)

Halosis; Jakarta Barat; On-site; IDR 1.002.841.000 - 1.337.122.000; Full time

Job summary

A leading technology startup in Jakarta is seeking an experienced Senior Full Stack Developer to join their product engineering team. In this role, you will design and develop AI-powered applications and integrations. Candidates should have at least 5 years of experience, strong skills in PHP Laravel, Node.js, or Python, and proven experience in generative AI development. Join us to help shape the future of AI technologies.

Qualifications

• Minimum 5 years of professional experience as a Full Stack Developer.
• Strong proficiency in PHP Laravel, Node.js, or Python.
• Proven experience in AI or Generative AI development.
• Experience with cloud platforms (AWS, GCP, Azure) and containerization.

Responsibilities

• Design and develop AI-powered applications and APIs.
• Build scalable APIs and backend services using PHP Laravel, Node.js, or Python.
• Implement intelligent front-end interfaces using React, Next.js, or Vue.js.
• Lead code reviews and provide technical mentorship.

Skills

PHP Laravel

Node.js

Python

Generative AI development

RESTful APIs

Microservices architecture

Database design

Cloud platforms

Containerization

Problem-solving skills

Collaboration

Tools

Docker

Kubernetes

Job description

Senior Full Stack Developer (Generative AI Specialist)

We’re looking for an experienced Senior Full Stack Developer with a strong background in Generative AI development to join our product engineering team.

You will help with the design and development of AI-powered applications and APIs, integrating them into Halosis’s core platform and helping shape the next generation of conversational and automation technologies.

This is a hands-on technical leadership role — perfect for someone who thrives at the intersection of AI innovation, scalable architecture, and real-world impact.

Design and develop full stack applications integrating LLMs (Large Language Models), NLP, and Generative AI frameworks.

Build scalable APIs and backend services using PHP Laravel, Node.js, or Python (FastAPI/Flask).

Implement intelligent front-end interfaces using React, Next.js, or Vue.js.

Collaborate with data and product teams to design, train, and deploy AI models for automation, chat, and content generation.

Optimize performance, scalability, and security across the stack.

Lead code reviews, provide technical mentorship, and uphold engineering best practices.

Explore and adopt new Gen AI tools and frameworks (OpenAI, Anthropic, LangChain, Hugging Face, etc.).

Requirements:

Minimum 5 years of professional experience as a Full Stack Developer.

Strong proficiency in PHP Laravel, Node.js, or Python.

Proven experience in AI or Generative AI development (OpenAI API, Hugging Face, LangChain, or similar frameworks).

Strong knowledge of RESTful APIs, microservices architecture, and database design.

Experience with cloud platforms (AWS, GCP, Azure) and containerization (Docker/Kubernetes).

Excellent problem-solving, analytical, and architectural skills.

Strong collaboration and communication abilities.

Experience developing AI chatbots, virtual assistants, or automation systems.

Knowledge of vector databases (Pinecone, Chroma, Weaviate).

Familiarity with prompt engineering and fine‑tuning LLMs.

Contributions to open‑source AI projects.

Halosis is an award‑winning startup that creates conversational commerce solutions with AI. If you want to be a part of the AI revolution, come and join us!

Jakarta, ID