Backend Engineer (Python)

About the role

We’re building a vertical AI Sales OS platform that automates and improves the sales process

end-to-end. The goal is simple: human-level sales capability at machine speed, with tight

integrations into real workflows (telephony, WhatsApp/CRM handoffs, scheduling, reporting).

As a Founding Backend Engineer, you’ll own core systems that power real-time voice/chat

interactions, campaign execution, data pipelines, and customer-facing reliability. This is a

high-ownership role with meaningful ESOP upside.

What you’ll do

● Build and ship backend services in Python for core product workflows (campaigns, lead

orchestration, reporting, integrations).

● Design and maintain scalable REST APIs and internal services.

● Work on real-time systems: event-driven pipelines, queues, streaming workflows, and

low-latency services.

● Implement caching and performance optimizations (Redis or equivalent), rate limiting,

retries, idempotency, and observability.

● Integrate with external APIs (telephony, STT/TTS providers, LLM endpoints, WhatsApp,

CRMs).

● Own reliability: monitoring, incident response, deployment hygiene, and

cost-performance tuning.

● Collaborate closely with the founder on architecture, product decisions, and roadmap

priorities.

What we’re looking for (must-have)

● Strong Python backend engineering experience.

● Solid understanding of REST APIs, authentication, and API design best practices.

● Experience building systems with real-time constraints (webhooks, queues, event

processing, background workers).

● Practical knowledge of caching concepts (Redis/memcache), database fundamentals,

and performance debugging.

● Basic understanding of AI/ML concepts and how to integrate model/API outputs into

production systems (LLMs, STT/TTS, embeddings, evaluation basics).

● Comfortable working in ambiguity and taking end-to-end ownership.

Good to have

● DevOps skills: Docker, CI/CD, Kubernetes, cloud (GCP/AWS), infra monitoring.

● Experience with distributed systems, message brokers (Kafka/RabbitMQ/SQS), or

workflow engines.

● Prior work on voice/telephony systems, WebRTC, or streaming audio pipelines.

● Experience building B2B SaaS (billing, RBAC, audit logs, multi-tenant systems).

Why join

● High ownership: you’ll build the core backend foundation, not just “tickets.”

● Real-world impact: your work directly improves customer revenue outcomes.

● Salary + ESOPs in a fast-moving, early-stage startup with strong growth ambition.

Location

● In Office position in Gurgaon