Principal Software Engineer
Warner Bros. DiscoveryResponsibilities
- Own end-to-end architecture across iOS, Android/TV, web, GraphQL, backend microservices, data stores, and streaming pipelines.
- Drive the design and evolution of the federated GraphQL platform, including subgraph boundaries, schema governance, entity ownership, and versioning.
- Architect low-latency, high-throughput event-driven systems for live scores, play-by-play, notifications, and other real-time sports data.
- Define API contracts, data-fetching patterns, performance standards, resilience patterns, observability, SLAs/SLOs, and capacity plans for Tier-1 services.
- Partner with product, editorial, data, design, mobile, web, and engineering teams to translate business needs into scalable solutions.
- Review technology choices and architecture designs, lead design reviews, and enforce coding, testing, CI/CD, benchmarking, and quality standards.
- Mentor senior and mid-level engineers and contribute to long-term platform strategy and technical roadmaps.
- Investigate and resolve cross-cutting production issues involving latency, data consistency, caching, memory, and stability.
- Drive adoption of emerging technologies, including AI-assisted development and agentic AI capabilities.
Requirements
- Bachelor’s or master’s degree in Computer Science, Engineering, or a related field.
- 15+ years of software engineering experience delivering complex, large-scale distributed systems and platforms.
- Deep hands-on expertise with TypeScript, Node.js, and modern backend frameworks such as Express.
- Strong GraphQL expertise, ideally including Apollo Server, Apollo Federation, subgraphs, gateways/routers, schema governance, and DataLoader.
- Experience with React web and native mobile client architecture using Swift/iOS and/or Kotlin/Android.
- Strong relational and NoSQL data-layer experience with PostgreSQL, Prisma/ORMs, MongoDB, DynamoDB, Redis, and ElastiCache.
- Experience designing event-driven and streaming architectures with Apache Kafka and/or RabbitMQ/SQS, including Protobuf-based schema or contract management.
- Experience operating Tier-1, high-uptime, low-latency systems with large and spiky traffic volumes.
- 5+ years of cloud experience, preferably AWS, including Kubernetes/EKS, Docker, Helm, Terraform, and Terragrunt.
- Strong grounding in resilience patterns, observability, Datadog, OpenTelemetry, structured logging, and production operations.
- Experience with GitHub Actions, automated testing, code-quality tooling, JWT/authentication, and secrets management.
- Excellent problem-solving, debugging, performance-tuning, communication, leadership, and cross-team influence skills.
- Preferred qualifications include Elixir/OTP, Phoenix, GenStage, APNs/FCM, AWS Lambda, multi-region systems, AI-assisted development, agentic AI/LLM features, RAG, tool or function calling, agent orchestration, evaluations, guardrails, vector stores, embeddings, prompt and context engineering, MCP, and open-source or GraphQL/streaming community contributions.
Benefits
- Fast-track growth opportunities.
- Equal opportunity workplace with accessibility accommodations available.
- The posting does not specify a work arrangement, contract duration, or compensation details.
Tech Stack
Categories
About Warner Bros. Discovery
Warner Bros. Discovery, a premier global media and entertainment company, offers audiences the world’s most differentiated and complete portfolio of content, brands and franchises across television, film, streaming and gaming. The new company combines WarnerMedia’s premium entertainment, sports and news assets with Discovery’s leading non-fiction and international entertainment and sports businesses. ****Please be aware of recruitment scams by individuals posing as employers and encouraging candidates to apply for, interview and/or accept nonexistent job opportunities as a means to solicit personal information or money. The online scammers have become much more sophisticated in their attempts to lure victims. Employment opportunities and job offers at Warner Bros. Discovery will always come from our Talent Acquisition and hiring teams. Never provide sensitive, personal information to someone unless you’re confident who the recipient is. WBD does not extend job offers via email or on any other messaging tools to individuals to whom we have not made prior contact. Our email domain is @wbd.com. A valid link for employment with Warner Bros. Discovery can be found at https://careers.wbd.com/global/en. If you believe you have been contacted by a scammer and may be the victim of fraud or identity theft, you should report details to the police where you live. You can also report job scams to the FTC. Learn more at https://consumer.ftc.gov/articles/job-scams. *****