Backend Engineer

About the Role

We are seeking a talented Backend Engineer to design, develop, and maintain scalable server-side applications and APIs using Python. You’ll work on building robust backend systems that power our products, ensuring high performance, reliability, and security within our AWS cloud infrastructure.

Requirements

Experience

3+ years of professional experience in backend development with Python

Technical Skills

• Strong proficiency in Python with experience in backend frameworks (Django, Flask, FastAPI, or similar)
• Deep understanding of PostgreSQL including:
  – Database design and schema optimization
  – Complex query writing and optimization
  – Indexing strategies and performance tuning
  – Transaction management and ACID principles
  – Experience with ORMs (SQLAlchemy, Django ORM) and raw SQL
• Experience designing and developing RESTful APIs and/or GraphQL services
• Proficiency with version control systems (Git) and collaborative development workflows
• Hands-on experience with AWS services including:
  – EC2 for compute resources
  – RDS for managed PostgreSQL databases
  – S3 for object storage
  – Lambda for serverless Python functions
  – API Gateway for API management
  – Additional services like SQS, SNS, CloudWatch, or ElastiCache are a plus
• Knowledge of authentication and authorization mechanisms (OAuth, JWT, API keys)
• Understanding of microservices architecture and distributed systems
• Familiarity with containerization (Docker) and orchestration on AWS (ECS, EKS)

Core Competencies

• Strong problem-solving skills and ability to write clean, Pythonic code
• Experience with Python testing frameworks (pytest, unittest) and writing comprehensive tests
• Understanding of software design patterns and SOLID principles
• Knowledge of API documentation tools (Swagger/OpenAPI)
• Familiarity with message queues and async processing (Celery, RabbitMQ, AWS SQS)
• Performance optimization for both application code and database queries
• Security best practices including SQL injection prevention, AWS IAM, and data encryption
• Experience with PostgreSQL extensions and advanced features (JSONB, full-text search, partitioning)

Responsibilities

• Design, develop, and maintain scalable Python backend services and APIs on AWS infrastructure
• Write clean, efficient, and well-documented Python code following PEP 8 and best practices
• Design and optimize PostgreSQL database schemas, queries, and indexes for performance
• Collaborate with frontend engineers, product managers, and designers to deliver features
• Implement authentication, authorization, and data validation logic
• Integrate third-party services and AWS services using Python SDKs
• Monitor application and database performance using AWS CloudWatch and troubleshoot production issues
• Participate in code reviews and provide constructive feedback
• Write comprehensive unit, integration, and end-to-end tests
• Manage database migrations and ensure data integrity
• Contribute to technical documentation and architecture decisions
• Optimize AWS and PostgreSQL resource usage for cost-efficiency and performance
• Stay current with Python ecosystem and PostgreSQL updates

Other Infrastructure Requirements

Since this is a fully remote position, you will also need:

• High-speed internet connectivity for video calls and efficient work
• A capable business-grade computer (e.g., modern processor, 8GB+ RAM)
• A dedicated home workspace for uninterrupted and efficient work
• Headphones with clear audio quality
• Stable power connection with backup options in case of internet/power outages

Nice to Have

• AWS certifications (Solutions Architect, Developer Associate)
• Experience with CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions, AWS CodePipeline)
• Knowledge of caching strategies using Redis or AWS ElastiCache
• Experience with asynchronous Python programming (asyncio, aiohttp)
• Familiarity with monitoring and logging tools (CloudWatch, X-Ray, Sentry, DataDog)
• Experience with infrastructure as code (Terraform, CloudFormation, AWS CDK with Python)
• Knowledge of PostgreSQL replication, backup strategies, and high availability
• Experience with data analytics and reporting using PostgreSQL
• Contribution to open-source Python projects
• Experience with Agile/Scrum methodologies
• Knowledge of websockets and real-time communication