Job Title : Technical Lead - Backend Systems

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.

Required Qualifications :

Must have :

- 10+ years of backend/software engineering experience

- 3+ years of production experience with FastAPI

- Expert-level Python knowledge

- Strong experience with :

1. Relational databases (PostgreSQL/MySQL)

2. At least one NoSQL datastore

- Deep understanding of :

1. Backend architecture patterns

2. Design patterns (GoF, SOLID, DDD concepts)

3. Distributed systems fundamentals

Additional qualifications :

- Experience designing and evolving large-scale systems

- Practical experience with cloud services and deployments

- Proven ability to lead technical decisions and architecture discussions

- Experience migrating monoliths to microservices (or deciding not to)

- Event-driven or streaming systems experience

- API gateways, rate limiting, auth systems (OAuth2 JWT)

- Prior experience acting as Senior Backend Developer, Tech Lead or Solution Architect

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 :

1. Modular monoliths

2. Microservices

3. Event-driven systems

4. 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 :

- Design and optimize schemas in RDBMS (PostgreSQL/MySQL)

1. 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 :

1. Partial failures

2. Retries, timeouts, and idempotency

3. Horizontal scaling

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

- Understand consistency models, eventual consistency, and data replication

DevOps / Cloud :

- 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