Software Developer – AI & Full Stack

Flowcall is an AI-powered customer service automation platform that helps D2C and e-commerce brands resolve support queries automatically — across WhatsApp, email, voice, Instagram, and web chat.

The Role

You'll be part of a small, high-ownership engineering team working directly with the founders. You'll be across the system, shipping things that matter, and building tools that multiply the team's leverage.

What You'll Work On

• Build and maintain features across our full stack — Angular frontend, Express/TypeScript backend, PostgreSQL
• Integrate and optimise LLM APIs (OpenAI, Gemini) for automated customer support workflows
• Design and build internal automation tooling to help the team move faster — think workflow orchestrators, prompt management systems, evaluation pipelines
• Work on WhatsApp Business API integrations, voice AI features, and multi-channel messaging pipelines
• Contribute to system reliability, observability, and performance improvements as we scale
• Collaborate directly with founders and the CTO to shape product and technical direction

Tech Stack

TypeScript | Angular | Express.js | PostgreSQL | OpenAI API | Gemini API

What We're Looking For

Must-Have

• Strong proficiency in TypeScript — you write clean, maintainable, production-grade TS
• Solid understanding of backend development with Node.js/Express or similar frameworks
• Experience with relational databases (PostgreSQL preferred)
• Genuine curiosity about AI and a willingness to learn fast
• Strong problem-solving instincts and the ability to navigate ambiguity in a fast-moving startup

Nice-to-Have

• Prior experience working with LLM APIs (OpenAI, Anthropic, Gemini, etc.) — prompt engineering, function calling, RAG pipelines
• Experience building internal tools or automation scripts to improve team efficiency
• Familiarity with Angular or another modern frontend framework
• Understanding of conversational AI systems, chatbot architectures, or customer service automation
• Experience with messaging APIs like WhatsApp Business API or similar platforms

What to Expect

• Direct access to founders and a flat team structure — your voice matters from day one
• Fast, iterative environment — ship fast, learn faster, and iterate based on real customer data
• Broad ownership of features and systems across the product
• The opportunity to work on cutting-edge applied AI problems in a vertical that's seeing rapid innovation
• Competitive compensation and meaningful equity in a company on a strong growth trajectory