Back End Developer

Description:

We are seeking an experienced Senior Backend Developer with 4+ years of hands-on experience and strong AWS cloud architecture skills to drive the core server infrastructure, APIs, and transactional engines for high-throughput digital streaming, social platforms, and e-commerce ecosystems.

Key Responsibilities:

Microservices & API Architecture: Design, build, and maintain high-concurrency microservices (Node.js/TypeScript, Python, or Go) across media ingestion, ticketing, social feeds, and payment processing.

Cloud Infrastructure & AWS Management: Design and maintain scalable cloud infrastructure leveraging AWS services, including Amazon ECS/EKS, AWS Lambda, DynamoDB, RDS (PostgreSQL/Aurora), ElastiCache (Redis), S3, CloudFront, and AWS Media Services (MediaConvert, Rekognition).

High-Concurrency Streaming & Media: Implement low-latency streaming infrastructure, SPEKE v2 Multi-DRM content protection (FairPlay, Widevine, PlayReady), LL-HLS video delivery, and WebRTC signaling gateways.

Financial & Transactional Engines: Architect high-integrity transactional subsystems, including row-level venue seat locking, dynamic TOTP QR ticketing generation, PCI-compliant payment integrations (Stripe, Apple/Google Pay), and BIGINT double-entry ledger accounting engines.

AI & Real-Time Voice Processing: Integrate real-time Speech-to-Text (STT) and Text-to-Speech (TTS) pipelines (Deepgram, OpenAI, ElevenLabs), WebRTC media streams, and multi-tier AI execution engines.

Performance, Security & CI/CD: Optimize database schemas, query performance, and Redis caching layers; maintain strict PCI-DSS and security practices; write automated tests; and manage CI/CD deployment pipelines on AWS.

Requirements & Qualifications:

Experience: Minimum 4+ years of professional software engineering experience designing, building, and deploying production-grade backend systems.

AWS Cloud Expertise: Hands-on experience with AWS services:

Compute & Containerization: AWS ECS/EKS, Fargate, Lambda, Docker.

Database & Ledger Systems: Deep expertise in relational database design (PostgreSQL DDL/DML, complex indexing, ACID transactions), connection pooling, and ledger/financial accounting integrity.

Real-time & Streaming: Hands-on knowledge of WebSockets, gRPC, Redis Pub/Sub, HLS/LL-HLS delivery, and WebRTC protocols.