Back End Developer - Technical Lead

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Job Title<\/span><\/span> <\/span><\/span><\/span>\-<\/span><\/span> <\/span><\/span><\/span>Back End Developer \- Technical Lead<\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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Location \u2013 Chennai (Onsite)<\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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Role Summary <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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We are hiring a<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>Lead Backend Engineer<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>with<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>10+ years of experience<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>who will own backend architecture and system design while<\/span><\/span> <\/span><\/span><\/span>remaining<\/span><\/span> <\/span><\/span><\/span>deeply hands\-on. This role is for someone already making architectural decisions. <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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You will design, build, and evolve distributed backend systems, define architectural standards, and guide teams through complex technical decisions. <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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Core Responsibilities <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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System Design & Architecture <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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Design end\-to\-end backend systems with a focus on<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>scalability, resilience, and maintainability <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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- Define service boundaries, data ownership, and communication patterns <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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  1. Select and apply<\/span><\/span> <\/span><\/span><\/span>appropriate<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>architecture<\/span><\/span> <\/span><\/span><\/span>patterns<\/span><\/span><\/span><\/span>: Modular monoliths <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Microservices <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Event\-driven systems <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Layered and hexagonal architectures <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Drive trade\-off decisions (performance vs cost vs complexity) <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Produce architecture diagrams, ADRs, Data Flow Diagrams and technical design documents <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Backend Engineering <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Design and develop high\-performance backend services using<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>Python and<\/span><\/span> <\/span><\/span><\/span><\/span>FastAPI<\/span><\/span><\/span> <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Build and<\/span><\/span> <\/span><\/span><\/span>maintain<\/span><\/span> <\/span><\/span><\/span>RESTful APIs and async services <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Handle concurrency, background processing, and IO\-heavy workloads <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Enforce clean code, SOLID principles, and testability <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Lead code reviews with a focus on correctness, performance, and long\-term design <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Data Engineering & Storage <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Design and<\/span><\/span> <\/span><\/span><\/span>optimize<\/span><\/span> <\/span><\/span><\/span>schemas in<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>RDBMS<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>(PostgreSQL/MySQL) Indexing, query optimization, transactions, isolation levels <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Design data models for<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>NoSQL<\/span><\/span> <\/span><\/span><\/span><\/span><\/span>systems (MongoDB, DynamoDB, Redis, etc.) <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Choose the right data store based on access patterns and consistency needs <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Handle migrations, versioning, and backward compatibility <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Distributed Systems <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Design systems that handle: Partial failures <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Retries, timeouts, and idempotency <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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    Horizontal scaling <\/span><\/span><\/span><\/span> <\/span><\/span><\/span>
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