About Us
Hiver offers teams the simplest way to offer outstanding and personalized customer service. As a customer service solution built on Gmail, Hiver is intuitive, super easy to learn, and delightful to use. Hiver is used by thousands of teams at some of the best-known companies in the world to provide attentive, empathetic, and human service to their customers at scale. We're a top-rated product on G2 and rank very highly on customer satisfaction.
At Hiver, we obsess about being world-class at everything we do. Our product is loved by our customers, our content engages a very wide audience, our customer service is one of the highest rated in the industry, and our sales team is as driven about doing right by our customers as they are by hitting their numbers. We're profitably run and are backed by notable investors. K1 Capital led our most recent round of $27 million. Before that, we raised from Kalaari Capital, Kae Capital, and Citrix Startup Accelerator.
Opportunity
As an SDE III (Full Stack + AI) at Hiver, you will work end-to-end across frontend, backend, and AI systems to craft the next generation of collaborative email, automation, and AI-powered customer service workflows.
You will own major product surfaces, architect scalable systems, and bring intelligent experiences to life in the UI — while ensuring reliability for 5M+ emails processed daily across thousands of active users.
What you will do
Full-Stack Product Engineering
- Build intuitive, performant UIs in React/Next.js for email collaboration, analytics, and AI-assisted workflows.
- Ship features end-to-end across frontend, backend APIs, domain models, and data pipelines.
- Integrate AI suggestions, copilots, and retrieval-based workflows seamlessly into the product experience.
- Collaborate closely with design & product to deliver polished, consumer-grade UX.
Backend, Distributed Systems & AI
- Scale backend systems to handle rapidly growing traffic and AI workloads.
- Build low-latency inference and retrieval endpoints, caching layers, and model-serving pipelines.
- Improve reliability, resiliency, and performance across monolith and microservices environments.
- Work with Kafka/RabbitMQ to build high-volume, event-driven data flows.
- Partner with ML/AI teams to deploy embeddings, rerankers, RAG systems, and evaluation workflows.
Data, Security & Observability
- Implement secure, compliant data handling for structured/unstructured customer data.
- Own observability across the stack — tracing, metrics, dashboards, feature flags, SLOs.
- Lead debugging of complex issues across frontend, backend, infra, and model pipelines.
- Drive postmortems, root-cause analysis, and process improvements.
What we're looking for
Must Have
- 5+ years building and scaling production systems end-to-end.
- Strong proficiency in React/Next.js + TypeScript.
- Solid backend expertise in Go/Java/Python.
- Deep understanding of distributed systems, concurrency, performance, and resiliency.
- Experience with SQL plus familiarity with NoSQL/caches.
- Exposure to production model serving (embeddings, RAG, inference APIs).
- Strong fundamentals in cloud infra (AWS preferred), containers, and CI/CD.
Nice to Have
- Experience with vector databases (pgvector, Pinecone, OpenSearch).
- Familiarity with vLLM, Triton, TorchServe, or model quantization.
- OpenTelemetry, feature flag platforms, A/B testing systems.
- Prior experience building B2B SaaS or email/collaboration products.
