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
1. and apply appropriate architecture patterns: Modular monoliths
2. 3. systems
4. and hexagonal architectures

1. 1. trade-off decisions (performance vs cost vs complexity)

1. 1. 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

1. 1. and optimize schemas in RDBMS (PostgreSQL/MySQL) Indexing, query optimization, transactions, isolation levels

1. 1. data models for NoSQL systems (MongoDB, DynamoDB, Redis, etc.)

1. 1. the right data store based on access patterns and consistency needs

1. 1. migrations, versioning, and backward compatibility

Distributed Systems

1. 1. systems that handle: Partial failures
2.



timeouts, and idempotency
3. scaling

1. 1. with message brokers and async communication (Kafka, RabbitMQ, SQS, etc.)

1. 1. consistency models, eventual consistency, and data replication

DevOps Cloud (Hands-on but not DevOps-only)

- Work in cloud environments (AWS / Azure / GCP)
- Containerize services using Docker
- Deploy using CI/CD pipelines
- Understand Kubernetes concepts (pods, services, autoscaling) or managed alternatives
- Collaborate with DevOps/SRE on observability, logging, and monitoring

Technical Leadership

- Act as technical owner for backend systems
- Mentor senior and mid-level engineers
- Set engineering standards and best practices
- Work closely with product and business stakeholders to translate requirements into technical designs

Required Qualifications

- 10+ years of backend/software engineering experience
- 3+ years of production experience with FastAPI
- Expert-level Python knowledge
- Robust experience with: Relational databases (PostgreSQL/MySQL)
- At least one NoSQL datastore
- Deep understanding of: Backend architecture patterns
- Design patterns (GoF, SOLID, DDD concepts)
- Distributed systems fundamentals
- Experience designing and evolving large-scale systems
- Practical experience with cloud services and deployments
- Proven ability to lead technical decisions and architecture discussions

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Technical Lead - Backend (Chennai)
🏢 PSRTEK
📍 Chennai