Cybersecurity Co-Founder / Head of Growth (100 % remote) (m/f/d)

As a Senior Software Engineer (SSE) in the Continuous Product Delivery (CPD) team, you will play a key role in providing long term stability and last mile delight to our customers. You will work closely with the core engineering team, product, and support org.

You will be working across Rubrik releases on our on-premise data backup & management offering, with a focus on the identity and access layer that secures it. You are expected to develop a strong understanding of our product and engineering architecture — particularly how authentication and authorization flow through the system, including our integrations with enterprise identity providers, directory services, and certificate-based trust chains.

We are seeking a highly skilled Golang developer with deep, practical experience in identity protocols (OIDC/OAuth 2.0, SAML 2.0) and applied cryptography/PKI. As a Software Engineer on this team, you will be responsible for designing, building, and hardening the systems that authenticate users, machines, and services across our platform — reasoning carefully about threat models, not just shipping features. You should have strong programming and troubleshooting skills, excellent design skills, and a solid understanding of distributed systems, OS fundamentals, and networking. The successful candidate will preferably have working knowledge of Active Directory and be able to work independently and as part of a team.

Responsibilities

Design, build, and harden identity and access flows — OIDC/OAuth 2.0, SAML 2.0, Active Directory integrations — that sit in front of mission-critical systems.
Own token and assertion lifecycle correctness: issuance, validation, expiry, rotation, and failure-mode handling for JWT/JWKS and SAML assertions.
Apply strong applied-cryptography and PKI practices (X.509 certs, key rotation, TLS) to keep the auth path secure by default, not as an afterthought.
Build and maintain reverse-proxy/HTTP-layer components (TLS termination, header handling) that front customer authentication traffic.
Debug and resolve customer-facing identity/access issues, working with support to triage escalations quickly.
Contribute to build/release and cross-platform packaging (Linux deb/rpm, Windows MSI) as needed.
Maintain a small Windows companion application written in C#/.NET.
Write and enhance end-to-end tests covering auth flows, failure modes, and edge cases (clock skew, revoked tokens, malformed assertions, etc.).
Document known issues, workarounds, and design decisions in the team knowledge base as the team and product mature.
Communicate clearly with product and engineering stakeholders on design tradeoffs, security posture, and escalation status.

Requirements

Must-have

Minimum experience of at least 8 Years
Strong hands-on programming skills in Golang.
Deep, practical knowledge of identity protocols: OIDC/OAuth 2.0 and SAML 2.0 — including token/assertion internals, standard flows, and failure modes.
Working knowledge of Active Directory.
Applied cryptography/PKI experience: X.509, JWT/JWKS, key rotation, TLS.
Strong security engineering discipline — comfortable reasoning about threat models and building software to protect mission-critical systems, not just make features work.
Solid understanding of OS fundamentals, networking, and concurrency.
Working knowledge of Linux; comfortable writing shell/bash scripts.
Simple, effective written and verbal communication.

Nice-to-have

Directory internals (schema, bind operations).
HTTP internals and reverse proxying (TLS, header injection).
Build/release and cross-platform packaging (Linux deb/rpm, Windows MSI).
Secret-manager internals, Redis, Win32, policy engines.
Basic C#/.NET (to maintain the companion app).

Join Us in Securing and Accelerating the World's AI Transformation

Rubrik (RBRK), the Security and AI Operations Company, leads at the intersection of data protection, cyber resilience, and enterprise AI acceleration. Rubrik Security Cloud delivers complete cyber resilience by securing, monitoring, and recovering data, identities, and workloads across clouds. Rubrik Agent Cloud accelerates trusted AI agent deployments at scale by monitoring and auditing agentic actions, enforcing real-time guardrails, fine-tuning for accuracy and undoing agentic mistakes.

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Inclusion @ Rubrik

At Rubrik, we are dedicated to fostering a culture where people from all backgrounds are valued, feel they belong, and believe they can succeed. Our commitment to inclusion is at the heart of our mission to secure the world’s data.

Our goal is to hire and promote the best talent, regardless of background. We continually review our hiring practices to ensure fairness and strive to create an environment where every employee has equal access to opportunities for growth and excellence. We believe in empowering everyone to bring their authentic selves to work and achieve their fullest potential.

Our inclusion strategy focuses on three core areas of our business and culture:

Our Company: We are committed to building a merit-based organization that offers equal access to growth and success for all employees globally. Your potential is limitless here.
Our Culture: We strive to create an inclusive atmosphere where individuals from all backgrounds feel a strong sense of belonging, can thrive, and do their best work. Your contributions help us innovate and break boundaries.
Our Communities: We are dedicated to expanding our engagement with the communities we operate in, creating opportunities for underrepresented talent and driving greater innovation for our clients. Your impact extends beyond Rubrik, contributing to safer and stronger communities.

Equal Opportunity Employer/Veterans/Disabled

Rubrik is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other status protected by applicable law. Rubrik provides equal employment opportunities to employees and applicants in all terms and conditions of employment, including recruiting, hiring, promotion, compensation, training, leave, and termination.

Rubrik provides reasonable accommodations to qualified applicants and employees with disabilities in accordance with applicable law. If you need an accommodation to participate in the application process or to perform your job, please contact hr@rubrik.com. Accommodations may include changes to the application process, documents in an alternate format, a sign language interpreter, or specialized equipment.

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