LocationRemote (Mexico or Spain preferred)
Must be fluent in English and Spanish
About the CompanyOur client is building a next-generation platform that enables users to interact with real-world event markets through modern Web3 infrastructure.
The product combines self-custody, seamless trading UX, and scalable cloud architecture to deliver a fast, transparent, and social experience.
This is an early-stage environment with strong product ambition and integral scalability from day one.
The RoleOur client is looking for a Senior Full-Stack Engineer who can operate across frontend, backend, and Web3 integrations.
This is not a "ticket executor" role.
They are seeking someone who thinks in systems, challenges assumptions, proposes architecture, and builds with ownership.
You will work directly with product and founding leadership to design and ship core infrastructure and user-facing features.
ResponsibilitiesBuild and maintain frontend applications using Next.js (React + Type Script)
Develop backend services using Node.js + Express (Type Script)
Integrate Web3 wallet flows and blockchain interactions
Architect scalable APIs and trading-related systems
Work with databases (Supabase / Postgre SQL)
Deploy and maintain infrastructure on AWS
Collaborate on system design and product decisions
Contribute to technical roadmap and architecture evolution
FrontendNext.js (React)
Type Script
Node.js
Express
InfrastructureSupabase
AWS
Web3Experience with Solana strongly preferred
Smart contract integrations
Wallet-based authentication
Hybrid on-chain/off-chain systems
Required Qualifications5+ years of experience in full-stack development
Strong proficiency in Type Script
Experience building production-grade applications
Experience with cloud infrastructure (AWS)
Fluent in English and Spanish
Comfortable working in fast-moving startup environments
Strong PlusExperience with Solana or Web3 trading systems
Experience with order books or financial systems
Familiarity with AI-assisted coding tools (e.g., Claude Code)
Previous startup or early-stage experience