Back End Developer

Bullet Microdrama OTT; New Delhi; On-site; INR 1,600,000 - 2,600,000; Full time

Job summary

Bullet Microdrama OTT is hiring a Senior Full Stack Developer to design, build, and scale distributed backend services and modern web apps. You will own end‑to‑end delivery, from API design to production operations, across a microservices stack based on Node.js, NestJS, gRPC, PostgreSQL, Elasticsearch, Redis, and multi‑cloud (GCP/AWS) with React on the frontend.

This is a hands‑on senior IC role. You will write production code daily, set technical direction, review peers, and mentor mid‑level

Qualifications

• 8+ years of professional software engineering experience.
• 5+ years building production backend services in Node.js/Express.js.
• 3+ years hands-on NestJS in production.
• Strong TypeScript across backend and frontend.
• Experience designing and operating microservices at scale.

Responsibilities

• Design, build, and maintain scalable microservices with Node.js and NestJS.
• Define gRPC service contracts and ensure backward compatibility.
• Build REST and GraphQL APIs for clients.
• Decompose monoliths into bounded services with SLAs.
• Architect streaming/data workflows and manage caching and queues.
• Lead technical reviews, set standards, and mentor engineers.

Skills

Node.js

NestJS

TypeScript

Express.js

React.js

gRPC

PostgreSQL

Elasticsearch

Redis

Cloud (GCP/AWS)

Tools

TypeORM

Prisma

Kafka

OpenSearch

Job description

Senior Full Stack Developer (Typescript / Node.js / Express.js / NestJS

Experience: 8+ years

Band - SDE 3

Reports to: Engineering Manager / Principal Engineer

About the Role

We are looking for a Senior Full Stack Developer to design, build, and scale distributed

backend services and modern web applications. You will own end-to-end delivery —

from API and data modelling through to production operations — across a microservices

platform built on Node.js, NestJS, gRPC, PostgreSQL, Elasticsearch, Redis, and a multi -

cloud footprint spanning Google Cloud Platform and AWS, with React on the front end.

This is a hands-on senior IC role. You will write production code daily, set technical

direction for your services, review others' work, and mentor mid-level engineers.

Key Responsibilities

• Design, build, and maintain scalable microservices using Node.js and NestJS (TypeScript).
• Define and implement gRPC service contracts (Protocol Buffers) for highthroughput inter-service communication; maintain backward compatibility across versions.
• Build and version REST and GraphQL APIs for client-facing consumption.
• Decompose monolithic components into well -bounded services; define service ownership, contracts, and SLAs.
• Experience with ORMs such as TypeORM or Prisma, and with raw SQL where timeouts, back-pressure, and graceful degradation.
• Design event-driven flows using message brokers (Pub/Sub, Kafka, or RabbitMQ) — including outbox patterns and exactly-once/at-least-once handling.

Media Delivery, CDN & Video Streaming

• Design, develop, and operate scalable video processing and transcoding pipelines for VOD and live streaming workflows.
• for HLS/DASH, thumbnail generation, previews, and media optimization using FFmpeg, GCP Transcoder API, or similar encoding platforms.
• Architect and manage CDN delivery infrastructure using solutions such as Cloud CDN, Cloudflare, Akamai, Fastly, or CloudFront.
• Configure and optimize CDN settings including cache keys, cache-control policies, TTLs, invalidation workflows, origin shielding, geo-restrictions, signed URLs, and token-based access control.
• Drive streaming performance improvements through cache optimization, origin offloading, multi-CDN strategies, and cost optimization initiatives.
• Develop and maintain media catalog, metadata management, content discovery, and playback services.
• Build and scale playback APIs responsible for manifest generation, playback authorization, and entitlement validation.
• Support Live Streaming and VOD platforms, including DVR functionality, catch-up TV workflows, and low-latency streaming architectures.

Data & Search

• Model relational schemas in PostgreSQL; write and optimise complex queries, indexes, partitions, and migrations.
• Diagnose and fix query performance issues using EXPLAIN ANALYZE, connection pooling, and read-replica strategies.
• Design Elasticsearch (or AWS OpenSearch) indices, mappings, analyzers, and aggregation-heavy queries for search and analytics workloads; own reindexing and relevance tuning.
• Use Redis — self-managed, GCP Memorystore, or AWS ElastiCache — for caching, distributed locks, rate limiting, session storage, and queue primitives; define cache invalidation strategy and TTL policy.

Frontend

• Build responsive, accessible interfaces in React.js with TypeScript, hooks, and modern state management (Redux Toolkit / Zustand / React Query).
• Optimise front-end performance: bundle size, code splitting, lazy loading, memoisation, and Core Web Vitals.
• Collaborate with design on component libraries and design-system consistency.
• Write component and integration tests (Jest, React Testing Library).

Engineering Leadership

• Lead technical design reviews and produce clear design documents with explicit trade-offs.
• Conduct rigorous, constructive code reviews; enforce coding standards and test coverage.
• Mentor mid-level and junior engineers; grow team capability through pairing and knowledge sharing.
• Partner with Product, QA, and Design to break down epics, estimate accurately, and deliver predictably.
• Participate in on-call rotation; lead incident response and write blameless.

Required Skills & Experience

• 8+ years of professional software engineering experience, with 5+ years building production backend services in Node.js / Express.js.
• 3+ years of hands-on NestJS in production — modules, dependency injection,
• Strong TypeScript across both backend and frontend.
• Proven experience designing and operating microservices at scale, including service decomposition and distributed-systems failure modes.
• Production experience with gRPC and Protocol Buffers — schema design,
• Deep PostgreSQL expertise: schema design, indexing, transactions, isolation levels, query optimisation, migrations.
• Hands-on Elasticsearch: index design, mappings, analyzers, aggregations, cluster health, and performance tuning.
• Production use of Redis for caching and distributed coordination.
• Solid GCP experience — deploying and running services on GKE or Cloud Run with managed data services.
• ElastiCache or OpenSearch, IAM roles and policies.
• Comfortable operating in a multi-cloud environment and reasoning about portability, vendor lock-in, and cost trade-offs between GCP and AWS.
• and alerting.
• performance tuning.
• Strong grasp of API design, authentication/authorisation (OAuth2, JWT, RBAC), and secure coding practices.
• Testing discipline: unit, integration, and end-to-end (Jest, Supertest, Playwright/Cypress).
• Git-based workflows, trunk-based or GitFlow branching, and disciplined PR hygiene.

Good to Have

• Experience with Kafka, Google Cloud Pub/Sub, or AWS MSK/Kinesis at high volume.

Solutions Architect / DevOps Engineer.

• Experience migrating workloads between cloud providers or running active-active across regions and clouds.
• Familiarity with Next.js, server-side rendering, and edge caching.
• Exposure to multi-tenant SaaS or OTT/media streaming platforms.
• Implement secure video delivery mechanisms including DRM integration (Widevine, FairPlay, PlayReady), encryption, entitlement checks, and secure key management.
• Monitor and improve Quality of Experience (QoE) metrics including startup latency, buffering ratio, playback success rate, video quality distribution, and
• Troubleshoot streaming issues across encoding, packaging, CDN, player, and network layers.
• Knowledge of BFF patterns.

• Performance and load testing (k6, JMeter, Artillery).