Senior PKI & Cryptography Backend Engineer

N2 Services Inc; Dearborn (MI); On-site; USD 120,000 - 170,000; Full time

Job summary

N2 Services Inc in Dearborn, MI is seeking an experienced Software Engineer specializing in PKI, cryptography, and secure API services to join the Product Cybersecurity PKI & Key Management Security Services team.

The role owns the end-to-end lifecycle of mission-critical PKI and cryptographic services, designing, deploying, securing, and maintaining backend APIs and services for certificate issuance, key management, and lifecycle operations.

Qualifications

• Bachelor's Degree required.
• 6 years of IT experience.
• 4 years of software engineering/development experience.
• Strong experience with object-oriented programming and secure coding.
• Experience with at least one advanced or two programming languages.
• Strong knowledge of software architecture, development methodologies, and design principles.
• Hands-on experience with PKI and cryptographic technologies.
• Strong understanding of RSA, ECC, AES, X.509, PKCS standards.
• Experience developing REST APIs and backend services.
• Strong understanding of software testing and TDD.
• Experience with cloud infrastructure and application deployment.

Responsibilities

• Design, develop, deploy, and maintain secure RESTful APIs and backend microservices.
• Build and maintain production-grade PKI and certificate management systems.
• Implement certificate issuance, renewal, rotation, revocation, and lifecycle management.
• Work with CRL, OCSP, ACME, X.509, and PKCS standards.
• Develop applications integrating with Hardware Security Modules (HSMs) using PKCS#11.
• Implement cryptographic functionality using RSA, ECC, and AES.
• Develop secure services using C#, .NET Core, Java, Python.
• Deploy and maintain applications in cloud and on-premises Kubernetes/OpenShift environments.
• Work with databases including PostgreSQL, Redis, MongoDB.
• Implement secure authentication and access control using OAuth and mTLS.
• Apply secure coding practices and software architecture principles.
• Promote test-driven development (TDD), CI/CD, automated testing, and Agile development.
• Monitor application health, performance, security, and reliability.
• Support SAST, DAST, vulnerability scanning, and security remediation.
• Apply cybersecurity standards and best practices including NIST, OWASP, ISO, and IEEE standards.

Skills

PKI cryptography

REST APIs

Object-oriented programming

Secure coding

TDD CI/CD

OAuth mTLS

Kubernetes

OpenShift

RSA/ECC/AES

Cloud deployment

Education

Bachelor's Degree

Tools

PKCS#11

PostgreSQL

MongoDB

Redis

C#

Java

Python

Job description

N2 Services Inc in Dearborn, MI is seeking an experienced Software Engineer specializing in PKI, cryptography, and secure API services to join the Product Cybersecurity PKI & Key Management Security Services team.

The role owns the end-to-end lifecycle of mission-critical PKI and cryptographic services, designing, deploying, securing, and maintaining backend APIs and services for certificate issuance, key management, and lifecycle operations.