Senior Backend Developer

Job Description

Application Process

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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, COPPA fundamentals, 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

Work Environment

Preferred Technical Skills (Optional)

Compensation & Benefits