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Posted 06 June, 2026

Senior Staff Engineer (C, Linux, Crypto, Payment, HSM and OpenSSL)

InterSources
Hyderabad Or Bengaluru,Andhra Pradesh,India Full Time
Reference: 365_463656_22-02628

Title: Senior Staff Engineer (C, Linux, Crypto, Payment, HSM and OpenSSL) (Job Id: 2200828)
Location: Bengaluru or Hyderabad, India
Duration: Full-time/Perm

About Client:
We believe that infrastructure powers progress. That execution is as essential as innovation. That better collaboration builds better technology. Trusted by the world's leading technology companies for 25 years, we move, store, process and secure the world's data with semiconductor solutions designed for our customers' current needs and future ambitions. Through a process of deep collaboration and transparency, we're ultimately changing the way tomorrow's enterprise, cloud, automotive, and carrier architectures transform—for the better.

The data infrastructure that our customers build has never been more critical to our global economy. It's what's keeping the world connected, businesses running, and information flowing. If you're ready to excel, innovate, and truly enjoy your work, apply now for the position detailed below.

The Opportunity
Developing products to protect data, authentication and key management in public/private clouds and large enterprises.
We are looking for passionate engineers that have relative experience and knowledge in information and system security in their career and want to be challenged, in the domain of practical cryptography, quantum crypto, payment security and want to work on meaningful projects with an amazing team, that want a lot of responsibility, that want to create a massive impact.

Job Responsibilities:
  • Develop and support software for client's Security Accelerators and HSM adapters.
  • Develop new features, enhance existing features, bug fixing of NITROX and Liquid Security HSM Software.
  • Trouble shooting and fixing the issues reported by customer and QA
  • Should be flexible to work with remote teams in India and US
  • Provide crypto agile architecture to meet future requirements. Guide the team on protocol selection and implementation specific to cryptography and information security.
  • Develop Threat Models, security policies, vulnerability assessment reports to address and improve the security posture of the product.
  • Assist team in compliance objectives to meet requirements for standards such as FIPS, Common Criteria and PCI PIN/HSM.
  • Provide domain expertise, advice and assistance to key internal stakeholders (engineering, product) and external stakeholders (customers)
  • Design and Develop secure authentication and key management function and integrate them with existing PKI and Encryption solutions.

Requirements:
  • Excellent programming skills in C (Must)
  • Excellent problem solving skills and Design Aspects
  • Good Understand of Security protocols like SSL and knowledge on Crypto algorithms
  • Good knowledge on public key cryptographic algorithms
  • Hands on experience with OpenSSL stack is Plus
  • Good understand of Linux OS internals and System Programming
  • Hands on experience with Device drivers in kernel/user space is Plus
  • Familiar with Agile process
  • Must have effective interpersonal and teamwork skills
  • Excellent communication skills
  • Must have the ability to multi-task in a fast-paced environment

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