Lead Backend Engineer & Systems Architect

Company: Sicada AI (Edysor Edutech Solutions Pvt. Ltd.)

Experience: 4-7 Years

Location: Udaipur, Rajasthan

Employment: Full-Time

About Sicada AI:

Sicada AI is building an enterprise-grade conversational AI and automation platform that enables businesses to execute customer interactions through AI-powered voice, WhatsApp, chat and automated workflows.

Our platform handles real-time AI conversations, high-volume calling, workflow orchestration, enterprise integrations and intelligent automation at scale.

About the Role:

We are looking for an exceptionally strong, hands-on Backend Engineering Lead who can take complete technical ownership of Sicada AI's backend infrastructure and architecture.

This is not a conventional backend development role. We need an engineer who can design complex systems from scratch, make critical architectural decisions, write high-quality production code, troubleshoot difficult engineering problems and build reliable infrastructure for scale.

The ideal candidate should have deep expertise in Node.js, TypeScript, Python, distributed systems, real-time processing and AWS cloud architecture.

The candidate must be equally comfortable designing system architecture and implementing it personally.

Key Responsibilities:

- Own the complete backend architecture, development, optimization and long-term scalability of Sicada AI.
- Design and develop highly performant backend services using Node.js, TypeScript and Python.
- Architect scalable, distributed and event-driven systems capable of supporting thousands of concurrent operations.
- Build and optimize real-time communication, streaming, WebSocket and asynchronous processing systems.
- Develop reliable microservices, APIs, background workers, queues and workflow execution engines.
- Own database architecture, query optimization, caching,



data consistency and high-volume data processing.
- Design high-availability, fault-tolerant systems with appropriate retry, recovery and failure-handling mechanisms.
- Manage AWS infrastructure, containerization, deployment pipelines and production performance.
- Optimize backend latency, resource utilization, service reliability and infrastructure costs.
- Architect secure multi-tenant SaaS infrastructure with solid data isolation and access control.
- Build robust integrations with CRMs, telephony providers, messaging platforms and third-party APIs.
- Implement monitoring, distributed tracing, structured logging, alerting and production observability.
- Independently investigate and resolve critical production incidents and architectural bottlenecks.
- Establish engineering standards, review code, mentor developers and guide technical implementation.

Mandatory Technical Expertise:

Backend Engineering: Expert-level Node.js, TypeScript and Python. Strong knowledge of asynchronous programming, concurrency, event loops, multithreading, performance profiling, API architecture and production-grade application development.

System Architecture: Proven experience designing distributed systems, microservices, event-driven architecture, high-concurrency services, fault-tolerant applications and scalable SaaS platforms.

Databases & Messaging: Strong practical knowledge of PostgreSQL, MySQL, MongoDB, Redis and Kafka or equivalent messaging technologies. Experience with indexing, query optimization,



transactions, partitioning and reliable message processing.

Cloud & DevOps:Hands-on AWS architecture, Docker, Kubernetes, CI/CD, load balancing, autoscaling, networking, cloud security and infrastructure monitoring.

**Reliability & Performance:** Experience solving production latency issues, race conditions, memory leaks, resource exhaustion, service failures, inconsistent state and scaling bottlenecks.

Engineering Quality: Excellent debugging skills, automated testing, secure coding practices, architectural documentation and production troubleshooting.

Highly Preferred Experience:

- Experience with real-time AI applications, conversational AI platforms, voice infrastructure, WebRTC, SIP, LiveKit, streaming audio, AI model orchestration, LLM integrations, STT/TTS pipelines or similar latency-sensitive systems.
- Experience building workflow orchestration engines, multi-channel automation, high-volume job processing systems or enterprise SaaS products would be particularly valuable.

What We Expect:

We need someone who has actually designed, built, deployed, scaled and maintained complex production systems, not someone whose experience is limited to implementing APIs or following predefined architecture.

The right candidate should be able to independently evaluate engineering trade-offs, identify structural weaknesses, propose better architectures and take full ownership of implementation.

Robust hands-on coding ability is non-negotiable. This is an engineering leadership position, not a management-only role.

Our ideal candidate is a problem solver, system architect and exceptional backend developer in one person.

Pay: ₹950,000.00 - ₹1,100,000.00 per year

Benefits:

- Health insurance
- Paid sick time
- Paid time off
- Provident Fund

Work Location: In person

📌 Senior Backend Engineer (Udaipur)
🏢 Edysor Edutech Solution Private
📍 Udaipur