Founding Senior Backend Engineer

Founding Senior Backend Engineer  (3-Month Contract | Immediate Start) Location: Hyderabad, India (Hybrid preferred) Contract: 3 months (with high potential to convert to full-time) Start: Immediate About the Role We’re looking for a Founding Senior Backend Engineer to design and build our core wallet and trading infrastructure from the ground up. You’ll own the backend architecture that powers our flagship crypto-fintech app  from wallet services and trade execution to yield strategies and AI-driven trading policies. You’ll work closely with mobile engineers (React Native/Flutter), product, and design to ship a platform that is secure, performant, and ready to scale from 0 → 1. This is a high-ownership role where your decisions will define the technical foundation of the product. What You’ll Do Architect and build core backend services for wallet management, balances, transactions, and accounting/ledgering. Design and implement trading infrastructure: Order routing and execution Integration with liquidity providers and exchanges Slippage, fees, and risk constraints Implement yield and trading strategies as robust, configurable services (DCA, yield products, automated rebalancing, etc.). Build AI-driven policy and execution layers: Define policy engines that can evaluate signals and constraints Safely trigger, simulate, and execute trades based on AI-driven or rules-based strategies Design secure APIs consumed by mobile and web clients. Own data persistence and performance: relational databases, caching layers, and event-driven flows. Ensure security, reliability, and observability: Logging, metrics, alerting Rate limiting, auth, and permissions High availability and resilience Collaborate closely with a global team (North America & India) across product, design, and mobile. Play a key role in architecture, technical roadmap, and product decisions as a founding engineer. Requirements 3+ years of professional backend engineering experience (ideally in product-focused teams). Proven experience designing and shipping production backend systems (microservices or modular monoliths). Strong in TypeScript/Node.js and/or Go/Rust, with solid fundamentals in system design and distributed systems. Hands-on experience with REST (and/or GraphQL) APIs, Relational databases (e.g., Postgres), Caching and state management (Redis or similar) Strong understanding of performance, scalability, and reliability in backend systems. Excellent debugging, problem-solving, and architectural skills. Comfortable working in fast-moving, early-stage environments with high autonomy. Immediate availability to join and start building. Willingness to collaborate with a global team in North America (overlapping hours where needed). Bonus Skills Experience working on FinTech or Crypto products (exchanges, wallets, brokerages, payment apps). Familiarity with wallet security, key management, and authentication flows (e.g., OAuth, JWT, biometrics integration via APIs). Experience with trading systems, market data, or  yield strategies. Knowledge of AI/ML or policy engines used for decision-making and automation. Experience with testing, CI/CD, and cloud infrastructure (AWS/GCP/Azure, containers, Kubernetes, etc.). Comfort collaborating with frontend/mobile teams and product in TypeScript-heavy environments. Why This Role Matters This is an opportunity to join at the ground floor as a founding backend engineer and shape the technical DNA of a next-generation crypto product. You’ll: Define the core wallet and trading infrastructure. Architect systems that AI-driven strategies and millions of future users can rely on. Have real ownership, autonomy, and impact on how the product works under the hood. If you love building secure, high-performance systems, enjoy thinking in terms of primitives and platforms rather than one-off features, and want to help power a product that could serve millions of users — this role is for you. Interested? DM me directly or apply with: Your GitHub / portfolio Links to products/systems you’ve built or shipped A short note on relevant experience (trading, wallets, infra, or AI-driven systems) Let’s build something exceptional together.