Senior Software Engineer - Identity & Access

Job highlights

• Integrate and manage third-party sign-in and identity providers,single sign-on (SSO),and multi-factor authentication (MFA)
• Familiarity with single sign-on (SSO) and multi-factor authentication (MFA).
• Required Technical Skills
• Preferred Skills
• Preferred Tools & Technologies

Job Summary

We're seeking an experienced Senior Software Engineer to own our Identity & Access platform end to end. Kuku is India's largest content platforms. This platform is the front door every user signs in through and the gate every request is checked against - one of the highest trust, highest blast radius parts of the product. We're a lean team with high ownership, and this is a role for someone who wants a critical service to be genuinely theirs. The ideal candidate has deep, hands-on experience with authentication and authorization systems, sessions and tokens, and building secure, highly reliable backend infrastructure that stays up under load.

Responsibilities

Identity & Access Architecture & Development

• Own the authentication and authorization platform end to end - design it, build it, run it, and improve it. It has to be secure and reliable above everything else.

• Own how users sign in: multiple sign-in methods behind one clean, consistent interface, so the rest of the product has a single dependable way to authenticate users no matter how they arrive.

• Own authorization - who is allowed to do what across services

• Own the full life of sessions and tokens, from how they are issued and refreshed to how they are revoked.

• Integrate and manage third-party sign-in and identity providers, single sign-on (SSO), and multi-factor authentication (MFA).

Systems Reliability & Scaling

• Keep the platform fast and always up - it sits on the critical path of every request.
• Build robust auth pipelines with monitoring, alerting, and fallback mechanisms.
• Own production issues on the service end to end, from the alert to the fix to making sure it cannot happen again.
• Optimize backend services for performance, cost, observability, and reliability at consumer scale.

Security, Compliance & Governance

• Keep the platform secure by default: how credentials are stored, how secrets are handled, and staying ahead of the usual ways identity systems get attacked.
• Implement best practices for tokenization, encryption, and secure key/secret management.
• Maintain session integrity, audit logs, and support data-privacy and regulatory requirements.
• Think about how something gets abused or breaks, not just how it works.

Cross-Functional Collaboration

• Work closely with product, platform, and security teams to give every service a dependable way to authenticate and authorize users.
• Mentor backend engineers and drive engineering excellence across the team.

Required Technical Skills

• 4-6 years in backend engineering, with real production experience - not just side projects.
• Strong Python, with production experience in Django and Django REST Framework.
• You have designed and owned a critical backend service in production, ideally authentication or authorization or something with a similar blast radius. You have built the internals yourself.
• A solid grasp of how sign-in, sessions, and access control actually work under the hood.
• A security-first instinct: you think about how something gets abused or breaks, not just how it works.
• Comfortable owning data that has to be both correct and fast, across PostgreSQL, Redis, and ClickHouse.
• You can pick up an unfamiliar live system, understand it deeply, and change it safely without disrupting the people already using it.

Preferred Skills

• Experience integrating third-party sign-in and identity providers.
• Familiarity with single sign-on (SSO) and multi-factor authentication (MFA).
• Exposure to message queues and background task processing, such as Celery.
• Experience running a high-traffic, low-latency service where downtime is a company-wide problem.
• Prior work in a consumer product at real scale.

Preferred Tools & Technologies

• Backend: Python (Django / Django REST Framework)
• Datastores: PostgreSQL, Redis, ClickHouse, MongoDB
• Async / Queues: Celery, Kafka
• Version Control: Git

Education

• Bachelors or Masters in Computer Science, Engineering, or equivalent - or equivalent practical experience.

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