About Role
We are seeking an SDE-3 Backend Builder to own the CRM Opportunities product end-to-end. Opportunities is the deal and pipeline engine at the heart of our CRM — the system of record for every revenue motion our customers run, from lead conversion to closed-won.

This role emphasises deep backend ownership: designing data models, APIs, and distributed workflows that power pipelines, stages, automations, reporting, and integrations at scale. You will operate with high autonomy, turning ambiguous problems into production systems, with enough frontend fluency to ship the occasional UI surface without waiting on anyone.

What You’ll Do

• Own the full lifecycle of Opportunities backend: translate business and customer needs into scalable, production-grade services

• Design and evolve the data model for pipelines, stages, deals, and associated entities — getting consistency, throughput, and query patterns right

• Build and scale APIs, event-driven workflows, and background jobs that handle high-volume writes, automations, and integrations

• Tackle distributed systems concerns: idempotency, eventual consistency, race conditions, hot tenants, and noisy-neighbor isolation

• Improve performance and reliability of large pipelines (millions of opportunities per workspace) through indexing, sharding, caching, and query optimization

• Ship end-to-end when needed — including UI changes in Vue — without blocking on cross-functional handoffs

• Instrument the system: logs, metrics, traces, and SLOs that make production behavior legible

• Drive incident response, postmortems, and the engineering hygiene that keeps a high-traffic product healthy

What You’ll need:

• 4+ years building and operating production backend systems at scale

• Strong fundamentals in data modeling (SQL and NoSQL), API design, and distributed systems

• Hands-on experience with Node.js or Go in production

• Track record of owning services end-to-end — design, build, deploy, on-call

• Comfort working independently in ambiguous problem spaces with high ownership

• Solid grasp of scalability, performance, and reliability trade-offs

• Experience building CRM, sales, pipeline, or workflow products

• Worked on multi-tenant SaaS at scale (sharding, tenant isolation, fair-use limits)

• Familiarity with event streaming (Kafka/Redis Streams), queues, and async processing

• Exposure to MongoDB, Postgres, ElasticSearch, ClickHouse, or similar at non-trivial scale

• Frontend fluency in Vue.js — enough to ship a feature without a frontend partner

• Strong product instincts and a portfolio or GitHub of shipped work
  
  

What Success Looks Like

• Ships Opportunities features from idea to production with minimal cycle time

• Builds services that stay reliable as workspaces grow from thousands to millions of deals

• Makes sound trade-offs between speed, quality, and long-term maintainability

• Raises the bar on data correctness, API design, and operational excellence for the product

• Continuously sharpens the customer experience through iteration and instrumentation

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