Forecast Fusion
AI-driven startup studio building innovative products for real-world impact.
Forecast Fusion is a seed-stage AI startup studio building practical, high-impact products powered by the latest advancements in LLMs and machine intelligence. We focus on turning complex, real-world problems into simple, intuitive solutions through thoughtful design, strong engineering, and rapid iteration.
Our portfolio includes:
- LegalFlow – an AI-driven platform for deep analysis of legal documents, combining RAG pipelines, structured workflows, and automated document intelligence.
- WeatherWear – a mobile app that helps people decide what to wear based on hyperlocal weather insights and behavior-driven recommendations.
- Additional internal AI initiatives in early exploration.
We operate as a lean, highly autonomous team with a strong emphasis on ownership, clarity, and speed.
Our mission is to build AI products that are not only technically advanced but genuinely useful — tools that help people work smarter, make better decisions, and save time in the moments that matter.
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Full-stack developer (Next.js, Typescript, Flutter, AI, AWS)
Full Remote · Ukraine · 3 years of experience · B2 - Upper IntermediateForecast Fusion is a USA-based seed-stage startup team of 3 building innovative AI-driven products: LegalFlow – an AI-powered platform for analyzing 100+ page legal documents. WeatherWear – a mobile app that recommends outfits based on weather...Forecast Fusion is a USA-based seed-stage startup team of 3 building innovative AI-driven products:
- LegalFlow – an AI-powered platform for analyzing 100+ page legal documents.
- WeatherWear – a mobile app that recommends outfits based on weather conditions using AI.
- Additional AI projects in early validation stages.
We are looking for a Mid-Senior Full-Stack Developer (3–5+ years experience) to join full-time and work across our stack:
- Next.js 14 + TypeScript (frontend & backend)
- Supabase (database + authentication)
- PostgreSQL with row-level security
- AI layer: Google Gemini 1.5 API via LangChain.js (prompt chains, agents, memory, RAG pipelines)
- LangSmith for prompt debugging and optimization
- Flutter for iOS and Android mobile applications
- AWS environment setup
Why this role is exciting:
- Work on real-world AI challenges: building RAG pipelines for long legal docs, adding AI overlays to PDFs, and designing multi-step agent workflows.
- Full ownership across frontend, backend, and AI stack.
- Exposure to the newest AI tools – Gemini, LangChain.js, LangSmith.
- AI-first culture: we use Cursor/Copilot for faster development, Claude for documentation and brainstorming, and we encourage leveraging AI to optimize your own workflows.
- Seed-stage startup environment – your work will have a direct and visible impact.
- Learning & development budget: we’ll cover AI tool subscriptions, courses, and resources to keep you ahead.
What we expect:
- 3–5+ years of professional experience in full-stack development.
- Strong knowledge of React/Next.js 14 and TypeScript.
- Experience with AWS environment and PostgreSQL (ideally including security features like RLS).
- Interest in or hands-on experience with LangChain.js / AI-driven workflows.
- Ability to work autonomously in a small team.
- Comfortable working directly with business stakeholders.
- Passion for AI technologies and eagerness to apply them to both product development and personal productivity.
Nice to have:
- Experience with Supabase in production.
- Prior integrations with Gemini, OpenAI, Claude, or similar LLMs.
- Background in SaaS, legal-tech, or complex workflow platforms.
- Experience with mobile app development and AWS cloud services.
Engagement & Compensation:
- Full-time (35–40 hrs/week).
- Flexible working hours, overlap with EEST (GMT+3) and EDT (GMT-4) for team sync.
- Monthly compensation range: $2,000 – $3,000 (USD), depending on experience.
Hiring Process:
- CV Review
- Personality test
- Technical deep-dive interview
- 1-hour interview with the Founder
- Final decision