Senior AI-native Full Stack Engineer
Locofy.ai, a remote-first startup headquartered in Singapore, is seeking a Senior AI-native Full Stack Engineer based in Vietnam or working remotely. This is a full-time opportunity to work at the intersection of AI, frontend engineering, and devtools innovation. You'll play a pivotal role in building AI-powered features that automate the transformation of UI/UX designs into clean and responsive front-end code. The team’s core mission is to power hyper-productive development workflows through AI, with customers ranging from startups to large enterprises. The company recently launched paid plans and has seen fast adoption with over 1000 subscriptions. This role offers the chance to work alongside experienced founders and a visionary engineering team, with competitive compensation and equity potential.
Candidates should have 4+ years of experience building production-grade web/mobile apps using technologies like React, Next.js, Flutter, or React Native. Strong skills in JavaScript/TypeScript, design tools (e.g., Figma, Sketch), and backend fundamentals (e.g., Node.js, Python APIs) are essential. Applicants must have exposure to AI/ML stacks, including experience with LLMs, fine-tuning pipelines (LoRA, QLoRA), vector databases (e.g., FAISS, Pinecone), and tools like LangChain or LlamaIndex. A passion for developer experience and AI-driven automation in software development is crucial. Experience with agents, RAG pipelines, or open-source devtool contributions is a plus.
This is more than just a coding role—it's an opportunity to shape how AI transforms frontend development. You'll collaborate cross-functionally with AI researchers, designers, and developers while working on foundational AI models, prompt orchestration, and design-to-code pipelines. If you're passionate about AI-native workflows and want to build tools that change how engineering teams ship product, Locofy.ai offers a platform to make a global impact.
About Locofy.ai
Locofy.ai is a fully remote (Singapore HQ) startup, building a low code development devtool platform to help accelerate developers & designers to launch their core web/mobile products 5-10x faster. Having raised $7.5M in seed funding from the likes of Northstar Ventures, Accel, January Capital, Golden-Gate Ventures, BoldCap and backed by founders of Dropbox, Ola, Lottiefiles, Hasura, Holistics, Wego, Paysense, GajiGesa, Ohmyhome, 1bstories, Cyber-Sierra, it launched its beta platform in January 2022.
We're young, but we've made some serious progress - our Product Hunt launch in July 2022 was really encouraging and our community feedback has been strong! We got #1 Product of the Day, Week and Month subsequently along with #1 Developer Tool and #1 Design Tool of the Day, Week and Month, and it's been a crazy ride ever since!
After running Locofy.ai in free public beta for 3.5 years, Locofy.ai recently came out of beta with paid plans in September 2024 and very rapidly sold 1000+ subscriptions with 20 Enterprises in 2 weeks.
The founders have held CxO roles in Product & Technology at some of Asia’s top startups covering Gaming, Travel, Fintech, Healthtech and SaaS, and won multiple awards for their products globally. After years building these products, they’re now determined to build a devtools SaaS platform from South-East Asia to improve the lives of product & engineering teams globally!
At the heart of everything, Locofy's mission is to build for builders i.e. developers, designers & product managers. As builders ourselves, we want to allow anyone with any idea to be able to build world-class products with lean teams, by empowering their teams with digital steroids to move faster!
We recently launched our foundational large design models (built in house) and are looking to expand them with a Senior ML Engineer who is passionate about this problem. More details : Locofy.ai Large Design Models Whitepaper
Reports To
CTO & Co-founder
Job Location
Singapore / Remote
Overview
Are you a frontend engineer who’s not just riding the AI wave but building the surfboard? We’re on a mission to automate frontend development and design-to-code workflows using cutting-edge AI. If you’ve built complex web or mobile apps, lived in design tools, and now find yourself fine-tuning LLMs, chaining prompts, or even experimenting with custom models—this is your calling. This isn’t your average frontend role. It’s an opportunity to pioneer how AI will reshape the future of application development. If you’ve got code in your veins and AI in your brain—let’s build the future together.
You’ll be joining a high-impact, product-driven engineering team where frontend expertise meets AI. The ideal candidate is a full stack engineer with strong frontend roots and deep curiosity in the emerging AI developer stack—prompt engineering, model building ground up and fine-tuning, embeddings, agents, and more. This is a rare opportunity to redefine how frontend development is done.
Key Responsibilities
- Build core AI-powered features that automate UI/UX to code generation for web and mobile apps
- Design and implement complex frontend systems, with pixel-perfect precision, from Figma or other design tools
- Work with LLMs, fine-tuning pipelines, and embeddings to enable context-aware code generation
- Develop internal tools and APIs that connect the AI layer with real-world frontend frameworks like React, Next.js, Flutter, etc.
- Collaborate cross-functionally with product designers, AI researchers, and fellow engineers to build magic
- Contribute to building and evolving the AI dev stack (prompt orchestration, context management, multi-modal input handling, etc.)
Required Skills
- 4+ years of frontend or full stack experience building production-grade web/mobile apps in atleast one of the following : React / Vue / Angular / Nextjs / Flutter / Kotlin / react native / Swift
- Strong proficiency in JavaScript/TypeScript, React (or similar frameworks), and responsive design
- Hands-on experience with design tools like Figma, Sketch, Penpot or Adobe XD, and turning them into live UIs
- Exposure to AI/ML tools and workflows — building models ground up or fine tuning them, prompt engineering, OpenAI/Anthropic APIs, LangChain, LlamaIndex, etc.
- Experience with LLM fine-tuning (LoRA, QLoRA, etc.), embeddings, LLM APIs, and vector databases like FAISS or Pinecone
- Solid understanding of backend fundamentals (Node.js, Express, Python APIs, or similar)
- Passionate about developer experience and accelerating how software is built
Nice to Have
- Experience building AI coding tools or internal dev automation platforms
- Worked on projects involving agents, RAG pipelines, or custom model training
- Contributions to open source projects in the AI or devtools space
- Familiarity with mobile frontend stacks like React Native or Flutter
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