Senior Backend Developer

Job Description Application Process To apply, please complete the form at: Only applications submitted through this link will be considered. About Athlitix Inc. Athlitix Inc. is a U.S. based startup revolutionizing sports technology to transform how athletes train and get recruited. Join our team to drive meaningful impact with significant ownership and creative autonomy. Role Overview As a Senior Backend Developer, you will design, develop, and maintain scalable, high-performance backend systems. Utilizing your expertise in Python, databases, and cloud technologies, you’ll build reliable and secure APIs, focusing on distributed systems, real-time data processing, and adherence to security and compliance best practices. Technical Requirements - Backend: 4+ years with Python (FastAPI, async/await, type hints); 3+ years with PostgreSQL (production, optimization, indexing, PgBouncer, ACID, replicas, materialized views); 2+ years with Redis (production, caching, TTL, Pub/Sub, cluster, session, distributed locks); API development (RESTful, versioning, rate limiting, cursor pagination, JWT/OAuth, OpenAPI/Swagger). - Cloud & DevOps: 3+ years with AWS (EC2, Auto-Scaling, S3, RDS, CloudFront, ALB, Lambda, IAM, Route 53); 2+ years with Terraform(modules, state, multi-environment); GitHub Actions (CI/CD, automated testing/deployment); Docker (best practices,multi-stage, Compose, optimization, security); Monitoring (Prometheus & Grafana or ELK/equivalent, structured logging, alerting, APM). - Real-Time & Distributed Systems: WebSocket (scalable, connection management, heartbeat, horizontal scaling); Message Queues (Redis Pub/Sub, RabbitMQ, Kafka for event-driven systems, background jobs); Distributed Systems (CAP theorem, eventual consistency, caching, race conditions). - Security & Compliance: Authentication/Authorization (JWT, OAuth 2.0, token rotation, session, RBAC); Security Best Practices(input validation, sanitization, SQL/XSS/CSRF prevention, rate limiting, encryption); Compliance (GDPR, COPPAfundamentals, data retention, audit logging). - Database & Performance: Database optimization (query profiling, index design, N+1 resolution, connection pooling, caching); Performance optimization (API response, load testing, caching, profiling tools). Key Attributes - Self-Starter: Takes full ownership from design to deployment. - Problem Solver: Proficient in debugging and resolving issues in complex distributed systems. - Communicator: Delivers clear written and verbal communication for documentation, code reviews, and technical discussions. - Detail-Oriented: Prioritizes security, edge cases, and robust error handling. - Adaptable: Thrives in a dynamic, fast-paced startup environment. - Collaborative: Works effectively with mobile developers, AI engineers, and product teams. - User-Focused: Emphasizes safety and compliance, especially for a platform serving minors. Work Environment - Thrives in a remote, asynchronous work setting. - Proactively identifies challenges and proposes solutions. - Committed to high-quality code, thorough testing, and clear documentation. - Eager to adopt new technologies and best practices. - Open to feedback and iterative improvement. Preferred Technical Skills (Optional) - Experience with social platforms (social networks, messaging apps, feed ranking, content moderation, user engagement). -