Senior Software Engineer - Identity Platform
Bloomberg
Software Engineering
New York, NY, USA
Posted on Nov 11, 2025
About Us
Every day, Bloomberg’s clients rely on secure and seamless access to our products. Our team makes that possible by building infrastructure that verifies identities for both clients and employees. We design systems that are fast, resilient, and highly available, capable of handling large volumes of authentication traffic around the clock.
What We Own
We are responsible for:
- Single Sign-On (SSO) infrastructure
- Multi-factor authentication (MFA) enrollment and verification
- MFA policy management systems
- Identity translation
Why join our team?
We are embarking on an initiative to modernize and unify Bloomberg’s authentication landscape. Your work will directly affect the experience of Bloomberg’s employees and clients worldwide.
You can expect to:
- Lead design and development of Bloomberg’s next-generation authentication and MFA systems, aligning with future product goals.
- Create scalable, end-to-end identity solutions across web, API, and proprietary technologies.
- Build tools to simplify authentication integration for internal and external teams, ensuring applications have a high level of default security.
- Collaborate with cross-functional partners across product, design, and engineering.
- We are committed to fostering a culture of collaboration and continuous learning. You will have access to security architects, peer knowledge-sharing sessions, internal meetups, and industry conferences to grow your skills and expand your network.
You will thrive in this role if you:
- Are passionate about making systems more secure and user-friendly.
- Value staying informed about industry trends in identity management.
- Care deeply about software quality, reliability, and scalability.
- Prioritize data-driven decision making.
You will need to have:
- Experience guiding the architecture of large scale authentication systems.
- Experience developing or operating Open ID Providers, Authorization Servers, and Identity Providers.
- Experience designing, building, or configuring federated identity management systems or identity brokers.
- Deep understanding of OAuth, OIDC, SAML, FIDO or similar protocols.
- Demonstrated expertise in security concepts.
- Strong communication and collaboration skills.
- 4+ years working with an object-oriented programming language (C/C++, Python, Java, Go, etc.)
- A Degree in Computer Science, Engineering, Mathematics, similar field of study or equivalent work experience.
We would love to see:
- Experience building and maintaining mission-critical infrastructure.
- Experience building and scaling distributed systems.
- Experience championing new company-wide standards for security practices.
- Participation in public authentication standards development or academic research. Presentations at security conferences.
- Certification or experience in penetration testing and cybersecurity.