Software Engineer 3 – Platform Security

At eBay were more than a global ecommerce leader were changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. Were committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.

Our customers are our compass authenticity thrives bold ideas are welcome and everyone can bring their unique selves to work every day. Were in this together sustaining the future of our customers our company and our planet.

Join a team of passionate thinkers innovators and dreamers and help us connect people and build communities to create economic opportunity for all.

Location: Bengaluru
Team: Cloud Platform Security

eBays Cloud Security Engineering team builds foundational security services that protect our global marketplace. The team designs and operates secure scalable cryptographic platforms that enable trusted transactions secure communications and strong identity guarantees across millions of users and services.

We are seeking a Software Engineer 3 (T24) to join our Bengaluru team with strong hands-on experience in cryptography encryption and public key infrastructure (PKI). In this role you will design build and maintain secure maintainable software components and services in the cryptography and platform security domain working on production-ready systems with a strong focus on quality reliability and operational excellence.

• Build and enhance cryptographic libraries integrations and service components that support encryption digital signatures and secure key management.

• Develop and maintain software systems that use public key cryptography including RSA ECC and digital signature workflows.

• Contribute to PKI certificate-management capabilities and trust frameworks used by internal platforms and services.

• Implement extensible maintainable software solutions for secure service integrations and platform capabilities.

• Support production readiness through testing monitoring operational improvements and continuous integration practices.

• Translate feature requests into design options engineering tasks and effort estimates for the team.

• Participate in threat modeling security reviews and validation of cryptographic designs and implementation choices.

• Improve the performance scalability and resilience of cryptographic operations in distributed high-throughput systems.

• Stay current with modern cryptographic standards vulnerabilities and secure development best practices.

• Bachelors or Masters degree in Computer Science Engineering or a related field or equivalent practical experience.

• 5 years of software engineering experience with meaningful hands-on work in security cryptography or secure platform development.

• Strong programming skills in Go Java or C with the ability to build production-quality backend software.

• Hands-on experience with cryptographic concepts and algorithms such as AES RSA ECC DSA and digital signatures.

• Strong understanding of PKI certificate management and secure key handling concepts.

• Experience with secure application development using technologies such as JCA JCE or similar security libraries and frameworks.

• Familiarity with PKCS#11 KMIP or similar key management protocols and integrations.

• Good understanding of distributed systems secure service design and secure coding practices including common cryptographic pitfalls.

• Experience working independently on components or sub-systems with accountability for delivery quality and production support.

• Experience with hardware-backed security HSM integrations or TPM-related capabilities.

• Exposure to modern cryptographic evolution areas such as post-quantum cryptography.

• Familiarity with AI-assisted engineering tools such as GitHub Copilot or Claude with sound judgment around code quality security and performance.

This role is an opportunity to help build and evolve the security foundations that underpin eBays marketplace at scale. As a Software Engineer 3 you will own meaningful technical scope within the team deliver secure and reliable software end to end and contribute to the continued strength of eBays cryptographic and platform security capabilities.

Additional Details

eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race color religion national origin sex sexual orientation gender identity veteran status and disability or other legally protected you have a need that requires accommodation please contact us at. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBays commitment to ensuring digital accessibility for people with disabilities.

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