Sia Partners is hiring a Staff Software Engineer (Node.js & TypeScript)

Responsibilities

• Lead the design and implementation of distributed backend systems using TypeScript and Node.js (NestJS/Express/Fastify) that can handle high throughput and complex data processing.
• Design robust APIs (REST and GraphQL) and event-driven architectures (Kafka/RabbitMQ) to integrate SaaS products with AI models, external data sources, and third-party services.
• Oversee data architecture, schema design, and query optimization across SQL (PostgreSQL) and NoSQL (MongoDB/Redis) databases; manage complex migrations and ORM implementations (TypeORM/Prisma).
• Ensure production readiness by implementing advanced caching strategies, memory management, security best practices (OWASP), and latency optimization for Node.js runtimes.
• Define deployment strategies on AWS/Azure/GCP. Establish containerized standards using Docker and Kubernetes, and drive Infrastructure-as-Code (Terraform) adoption.
• Lead the backend development of the Heka.ai ecosystem, ensuring modularity and reusability across different products.
• Act as the Directly Responsible Individual (DRI) for major architectural blueprints; own technical design documents (TDDs) and migration plans.
• Maintain ownership of triage and incident prioritization; advocate for technical debt reduction and system reliability (SRE practices).
• Serve as the primary maintainer for critical repositories, enforcing strict coding standards, type safety, and test coverage.
• Mentor Senior and mid-level engineers formally; grow the team via code reviews, pair programming, and career coaching.
• Break down large strategic efforts into epics and Minimum Viable Changes (MVCs); coordinate cross-team delivery.
• Participate in hiring: design technical interviews for the Node.js track, assess candidates, and foster a culture of engineering excellence and inclusivity.