Lead Backend Engineer - TypeScript / NestJS

Responsibilities :

• Architect & scale : Evolve a micro-service / serverless mix that balances cost, latency, and developer velocity.
• Draft ADRs, review PRs, and keep our 99.9 % uptime promise.
• Build AI agent services : Expose REST endpoints and streaming event buses that power agent skill prompt orchestration, vector search, workflow engines, and analytics.
• Lead & mentor : Grow a high-calibre team of TypeScript / NestJS engineers through pairing, design reviews, and career coaching.
• Guard reliability & security : Implement observability, alerting, rate-limiting, IAM least-privilege, and GDPR / SOC 2 controls.
• Collaborate cross-functionally : Work daily with Product, Frontend, Data Science, and Design to translate fuzzy business problems into elegant backend abstractions.
• Drive technical vision : Introduce best-practice patterns domain-driven design, event sourcing, CQRS, eventual consistency whenever they create a real product :
• 6-8 years building production backend in Node.js / TypeScript (or Go / Java with strong TS ramp-up).
• Deep knowledge of AWS primitives / Fargate, Lambda, RDS or Aurora, S3, IAM, VPC networking.
• Proven experience designing and operating high-throughput REST and event-driven systems.
• Expertise in SQL schema design, migration strategy, and performance tuning.
• Strong testing culture.
• Track record of coaching engineers and hiring to have :
• Hands-on with LangChain, Pinecone, OpenAI, or similar LLM / vector-DB stacks.
• Familiarity with Serverless Framework / SST and cost-optimisation techniques.
• Experience with analytics pipelines (Kinesis / Kafka / ClickHouse / Apache Iceberg).
• Prior work on SMB-facing SaaS or fintech platforms.
• Contributions to OSS (NestJS, AWS CDK, OpenTelemetry, etc.
• Security certifications or deep knowledge of GRDP, HIPAA

(ref : hirist.tech)