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