Full Stack Developer (Senior, AI-First)
Full Stack Developer (Senior, AI-First) About Kembar Digital (KDI) Kembar Digital is a fast-growing digital transformation and technology company based in Bali. We build and manage high-performance SaaS platforms, enterprise systems, CMS-driven ecosystems, and scalable digital infrastructures for both internal products and international clients. Our work spans advanced web applications, real-time backend systems, API integrations, scalable SaaS platforms, and emerging technology solutions. As part of our engineering philosophy, we integrate modern AI-assisted development tools and automation workflows to improve efficiency, enhance code quality, and accelerate structured delivery. We view AI as a productivity multiplier — built on top of strong engineering fundamentals. We are expanding our team and we are looking for a senior Full Stack Developer who thinks AI-first and understands how to turn fast AI prototypes into production-grade systems. You will work directly alongside the Lead Developer and founders to bring an AI-powered creator platform that combines automation, conversational agents, and scalable infrastructuree from MVP to scalable platform. This is not a junior feature-implementer role. We are looking for a builder. You need to ship fast. ________________________________________ Role Overview As a Senior Full Stack Developer, you will: • Ship production-ready features fast • Harden AI-generated code • Architect scalable backend logic • Build reliable integrations (Telegram, APIs, payments, AI tools) • Improve performance, security, and maintainability • Work closely with the Lead Developer on technical decisions You must be comfortable operating in ambiguity and building systems that do not yet have clear templates. ________________________________________ What You’ll Work On • Core platform (user accounts, onboarding, dashboards) • AI agent orchestration (Telegram bot, conversational flows) • Supabase database architecture • API integrations (AI tools, automation platforms) • Admin dashboard systems • Waitlist + referral infrastructure • Scaling from MVP → stable v1 ________________________________________ Required Technical Skills Core • 5+ years full stack experience • TypeScript (strict mode) • React (modern hooks, performance optimization) • Next.js (App Router, API routes, server components) • Node.js backend architecture • PostgreSQL (schema design, performance tuning) AI-First Mindset • Extensive usage of AI coding tools (Cursor, GPT, Claude, etc.) • Ability to refactor AI-generated code into clean architecture • Prompt engineering understanding • Experience building AI-driven flows or agents • Understanding of LLM limitations and guardrails Backend & Infrastructure • Supabase (Auth, RLS, policies) • REST API design • Webhooks • Background jobs • Error handling & logging • Basic DevOps awareness Strong Plus • Telegram bot development • Relevance AI or orchestration tools • Payment provider integrations • Monorepo setups • Edge runtime experience • Security best practices ________________________________________ What We Expect • You ship fast without shipping chaos • You improve code quality proactively • You see architectural risks early • You write clean, structured code • You don’t hide behind AI — you use it intelligently • You can operate without constant supervision • You think in systems, not tasks ________________________________________ What This Role Is NOT • Not a junior AI prompter • Not a WordPress developer • Not someone who needs detailed step-by-step instructions • Not someone who copies AI output into production without thinking ________________________________________ Working Style • Direct collaboration with Lead Developer • Weekly sprint structure • Fast iteration cycles • High ownership environment • Founder-level visibility ________________________________________ Ideal Personality • Builder mentality • Low ego, high competence • Structured thinking • Calm under ambiguity • AI-native • Product-driven ________________________________________ Why Join KDI? This is an opportunity to: • Shape the technical foundation of an AI platform • Work closely with experienced founders • Build something from zero to scale • Move fast without corporate friction
