Weekday, Inc.

Senior Backend Engineer

Posted 2 Days Ago

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Bengaluru, Bengaluru Urban, Karnataka, IND

In-Office

Senior level

Artificial Intelligence • HR Tech • Professional Services • Software

The Role

Design and build scalable, low-latency microservices and backend systems for a real-time AI and voice platform. Own end-to-end system design, optimize for performance, concurrency, and fault tolerance, implement observability and resilience best practices, and collaborate with product and AI teams on multi-agent orchestration.

Summary Generated by Built In

This role is for one of Weekday’s clients

Min Experience: 3+ years
Location: Bengaluru
JobType: full-time

We’re looking for a Senior Software Engineer (Backend) who can design and build high-scale, low-latency systems for our AI and voice platform. The ideal candidate will have strong backend engineering fundamentals, experience with distributed systems, and curiosity about Voice AI, WebRTC, and SIP-based integrations.

Requirements

Responsibilities

Design and develop scalable microservices and backend systems that power real-time AI and voice workflows.
Own end-to-end system design — from architecture, APIs, and data models to deployment and monitoring.
Optimize systems for performance, concurrency, and fault tolerance at high scale.
Implement best practices for observability, testing, and resilience (Datadog, Sentry, etc.).
Collaborate with product and AI teams to evolve the platform’s multi-agent orchestration and automation layer.

Requirements

Must-Have Skills

3–6 years of backend development experience in Python or Java.
Strong grasp of system design, concurrency, and distributed systems.
Experience building scalable, high-availability APIs or streaming systems.
Familiarity with WebRTC, SIP, RTP, or other real-time communication protocols.
Experience with cloud environments (GCP/AWS) and containerized deployments (Kubernetes, Docker).
Sound understanding of databases (MongoDB, Redis, Postgres) and message queues (Kafka, Pub/Sub).

Good to Have

Exposure to Voice AI, Speech Processing, or AI Agent frameworks.
Experience integrating LLMs, vector DBs, or real-time AI inference systems.
Prior work on AI-driven or telephony-driven platforms at scale.

Must-have skills

Java, Python

Good-to-have skills

webRTC, Microservices, Kubernetes

Skills Required

3-6 years backend development experience
Proficiency in Python or Java
Strong grasp of system design, concurrency, and distributed systems
Experience building scalable, high-availability APIs or streaming systems
Familiarity with WebRTC, SIP, RTP or real-time communication protocols
Experience with cloud environments (GCP or AWS)
Experience with containerized deployments (Kubernetes, Docker)
Understanding of databases: MongoDB, Redis, Postgres
Experience with message queues: Kafka or Pub/Sub
Experience implementing observability, testing, and resilience (Datadog, Sentry)
Exposure to Voice AI, Speech Processing, or AI Agent frameworks
Experience integrating LLMs, vector DBs, or real-time AI inference systems
Prior work on AI-driven or telephony-driven platforms at scale

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The Company

Year Founded: 2021

What We Do

Weekday is an AI-powered recruitment platform that helps startups hire top-tier engineering and product talent. By leveraging a massive database of white-collar professionals and advanced outreach tools, the company streamlines the hiring process through automated sourcing, AI-driven resume screening, and white-glove contingency services. Their mission is to modernize recruitment by enabling companies to discover and engage passive candidates efficiently, ensuring high-quality hires for critical roles.