Job 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.

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).

- 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, and 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.

Profile Description :

Must have :

- 10+ years of backend/software engineering experience.

- 3+ years of production experience with FastAPI.

- Expert-level Python knowledge.

- Strong experience with relational databases (PostgreSQL/MySQL) and at least one NoSQL datastore.

- Deep understanding of backend architecture patterns, design patterns (GoF, SOLID, DDD concepts), and 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.