Software Engineer 3 – Platform Security

eBay; Bengaluru; On-site; INR 400,000 - 700,000; Full time

Job summary

eBay in Bengaluru seeks a Software Engineer 3 for Platform Security to design, build, and maintain cryptography-focused software and PKI services within the Cloud Platform Security team.

You will work on secure, scalable backend components, implement crypto operations, and ensure production readiness with strong emphasis on quality and reliability.

Join a team that values innovation, security excellence, and collaboration as we protect millions of transactions across our global marketplace.

Qualifications

• Bachelor’s or Master’s degree in CS/Engineering.
• 5+ years of software engineering experience.
• Proficient in Go, Java, or C++ for backend systems.
• Strong cryptography knowledge: AES, RSA, ECC.
• Deep PKI, certificate management, and secure key handling.
• Experience with JCA/JCE or similar libraries.
• Familiarity with PKCS#11 or KMIP protocols.
• Experience in distributed systems and secure coding.
• Ability to own components end-to-end and support production.

Responsibilities

• Build and maintain cryptographic libraries and services.
• Develop software using public key cryptography (RSA, ECC).
• Contribute to PKI and certificate-management capabilities.
• Design maintainable, secure backend components.
• Ensure production readiness with testing and monitoring.
• Translate requirements into design options and estimates.
• Participate in threat modeling and cryptographic reviews.
• Improve performance, scalability, and resilience of crypto ops.
• Stay current with crypto standards and best practices.

Skills

Go

Java

C++

Cryptography

PKI

Education

Bachelor’s or Master’s degree in CS/Engineering

Tools

JCA/JCE

KMIP

PKCS#11

Job description

At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re 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. We're 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.

Software Engineer 3 – Platform Security

Location: Bengaluru

Team: Cloud Platform Security

About The Team

eBay’s 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.

Role Summary

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.

What You’ll Do

• 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.

Must-Have Qualifications

• Bachelor’s or Master’s 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.

Nice-to-Have Qualifications

• 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.

Why This Role Matters

This role is an opportunity to help build and evolve the security foundations that underpin eBay’s 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 eBay’s 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 status. If you have a need that requires accommodation, please contact us at [e-mail]. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities.

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