About Careertakes

👉 Important disclosure: Careertakes is a third-party recruiting platform supporting this hiring process. If selected, you will be employed directly by our client, Staffing and Recruiting.

Applicants for this role may also receive access to additional matched opportunities through the Careertakes platform.

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What You’ll Do

Confidential Client is seeking a contractor-level software engineer to support a platform-security initiative focused on transitioning an XML-based Key Server to an object-based architecture. You will work closely with the internal cybersecurity team to design, implement, and maintain secure services for key, certificate, token, and secret management.

• Contribute to the transition of an XML-based Key Server to object-based models for certificates, cryptographic keys, tokens, secrets, metadata, versioning, and lifecycle state.
• Design and implement secure, versioned REST and/or gRPC APIs (create, retrieve, update, delete, synchronize) and object-level lifecycle operations.
• Build reliable software for distributed environments (including intermittent connectivity between ground and aircraft systems) emphasizing security, compatibility, performance, and operational resilience.
• Integrate approved cryptographic primitives and secret-management mechanisms (encryption, decryption, key-wrapping, certificate handling) without changing approved algorithms, key sizes, or signature schemes.
• Implement centralized logging, monitoring, audit trails, and end-to-end traceability for object access, synchronization, lifecycle, and error events.
• Write and maintain engineering documentation: architecture, interfaces, design, requirements, test plans, and test procedures.
• Develop, test, debug, and integrate software on Linux-based systems; create developer tools and subsystems to improve testability and reuse.

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Required Qualifications

• Bachelor’s degree (or equivalent) in Computer Science, Information Systems, Engineering, or related field.
• 5+ years of professional software development experience.
• Hands-on Golang development experience on Linux.
• AWS experience (designing/deploying services or using AWS components in development workflows).
• Experience with embedded hardware/software (x86, Cortex ARM microprocessors, SoCs) and real-time/embedded systems.
• Strong knowledge of secure software-development practices, object-oriented design, data structures, and software architecture.
• Proven experience designing and implementing REST APIs and/or gRPC services.
• Experience with networked client-server or distributed applications using TCP/IP, and authentication/authorization models (RBAC, ACLs).
• Proficiency with structured data formats and serialization (JSON, XML) and schema/versioning strategies to maintain backward compatibility.
• Familiarity with source control, code review workflows, automated builds, unit testing, and integration testing.
• Strong debugging, troubleshooting, performance analysis, and systems-integration skills.
• Clear written and verbal communication; ability to manage priorities and collaborate cross-functionally.

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Preferred / Highly Desirable

• Direct experience with cryptographic key management, certificate management, PKI, or secret-management systems.
• Working knowledge of AES, RSA, TLS/mTLS, certificate handling, key wrapping, IVs, and related cryptographic concepts.
• Experience designing object versioning, schema evolution, and compatibility strategies.
• Prior work on safety- or security-critical systems, especially in connected or aerospace environments.

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Employment Details

• Employment type: CONTRACTOR
• Location: Irvine, CA (onsite or as required by the client)
• Immediate need — hiring ASAP.
• This role will work closely with the Confidential Client cybersecurity team and be integrated into ongoing development activities.

Applicants will not be asked about protected characteristics. Reasonable accommodations are available for candidates with disabilities during the application process; please contact Careertakes for assistance.

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Equal Opportunity & Hiring Transparency

Careertakes and our client are Equal Opportunity Employers committed to building a diverse and inclusive workforce. We prohibit discrimination or harassment of any kind. To support a fair and efficient hiring process, AI tools may be used to assist with application review or resume screening. These tools do not replace human decision-making. Final hiring decisions are made by people.

If you have questions about how your data is used, please contact us directly.