This role is for one of the Weekday's clients
Salary range: Rs ******* - Rs ******* (ie INR ***** LPA)
Min Experience: 2 years
Location: NCR
JobType: full time
We are seeking a seasoned Lead Backend Engineer to drive the backend architecture and development for a high-performance crypto exchange platform. This role involves leading backend systems that power wallet services, trade execution, order matching, and real-time transactions. You will collaborate with cross-functional teams to build scalable, secure, and reliable services that meet both technical and business requirements.
Key Responsibilities
Lead backend development efforts across key platform components such as wallets, matching engine, order management, and transaction processing
Architect high-availability, low-latency backend systems using microservices or service-oriented architecture
Ensure engineering best practices in code quality, system scalability, observability, performance optimization, and security
Collaborate with product managers, frontend developers, and QA teams to define, build, and deliver RESTful and WebSocket APIs
Own the entire service lifecycle, from design to deployment, monitoring, and incident resolution
Design data models for core exchange elements such as balances, order books, and transactions with an emphasis on performance and accuracy
Implement secure practices for authentication, authorization, and key management, especially in wallet infrastructure
Mentor junior developers, conduct technical reviews, and contribute to hiring efforts




Core Requirements
6+ years of backend development experience, including 2+ years in a senior or technical leadership capacity
Expertise in one or more of: Node.js, Golang, Rust, or equivalent modern backend languages
Deep experience in building real-time transactional systems like trading engines, order books, or payment processors
Proficient with PostgreSQL, Redis, Kafka/RabbitMQ, and designing event-driven systems
Solid understanding of RESTful APIs and WebSocket communication
Experience with containerization (Docker) and orchestration (Kubernetes)
Familiarity with blockchain concepts including wallet architecture, smart contracts, and token handling
Hands-on experience with secure key management and integration with custody services (e.g., Fireblocks, BitGo)
Skilled in working with CI/CD pipelines and cloud platforms like AWS or GCP
Preferred Qualifications
Background in financial systems, high-frequency trading, or exchange platforms
Knowledge of cryptographic principles, cold/hot wallet design, and transaction signing
Awareness of regulatory and security frameworks (KYC, AML, access control, audit logging)
Experience with DevOps practices, Terraform, Helm, or infrastructure-as-code tooling
Exposure to third-party integrations such as blockchain explorers, identity management tools, or liquidity providers
Skills
Node.js · Golang · Java · PostgreSQL · Redis · Kafka · WebSockets · Microservices · Kubernetes · Blockchain · Security · Wallet Infrastructure

📌 Lead Backend Engineer (Delhi)
🏢 Weekday AI
📍 Delhi