Senior Backend Engineer – Security & Cryptography
Joshua Daniel
Any Visa
Job Title: Senior Backend Engineer – Security & Cryptography
Location: remote - Hybrid US mostly twice a month.
Duration: Contract
Experience: 7+ Years
About the Role
We are seeking a highly skilled Backend Engineer with strong security and cryptography expertise to design and build next-generation cryptographic intelligence and risk assessment platforms.
In this role, you will be responsible for engineering secure, scalable backend systems and sensor architectures that operate across enterprise environments, integrating with leading security platforms and cloud ecosystems.
Key Responsibilities
· Backend Engineering & Platform Development
· Design and develop high-performance backend services and APIs for:
· Cryptographic asset discovery
· Cryptographic inventory and metadata normalization
· Risk assessment and prioritization workflows
· Build secure, scalable microservices architectures using modern backend technologies
· Develop gRPC and REST-based APIs for distributed systems
· Security & Cryptography Engineering
· Architect and implement systems leveraging:
· TLS/SSL protocols
· Public Key Infrastructure (PKI)
· Certificate lifecycle and key management
· Ensure secure communication, encryption, and authentication across services
· Apply security-first (left-shift) development practices
· Sensor & Agent Development
· Design and implement lightweight cryptographic sensors/agents that:
· Deploy via enterprise endpoint platforms (e.g., CrowdStrike, Tanium)
· Run as standalone containerized services within customer environments
· Optimize for performance, security, and low system overhead
· Data Engineering & Pipelines
· Build scalable data ingestion pipelines for cryptographic and workload metadata
· Design and maintain SQL and graph-based data models
· Enable real-time analytics and risk scoring capabilities
· Cloud & DevOps
· Develop and maintain CI/CD pipelines using GitHub Actions or similar tools
· Deploy and manage services using:
· Docker & Kubernetes
· Cloud platforms (preferably Azure)
· Implement automated testing, monitoring, and secure deployment practices
· Integration & Ecosystem
· Integrate with enterprise security and IT tools such as:
· CrowdStrike, Tanium, Tenable, ServiceNow
· Work with external APIs and SDKs for seamless interoperability
· Required Qualifications
· 7+ years of experience in backend software engineering (enterprise-scale systems)
· Strong programming expertise in:
· Python
· Golang
· Node.js
· Experience building secure microservices using gRPC and REST APIs
· Hands-on experience with:
· Docker & Kubernetes
· CI/CD tools (GitHub Actions or similar)
· Experience integrating with external APIs and SDKs
· Solid understanding of secure system design and distributed architectures
· Preferred Qualifications
· Experience with security-focused development and secure coding practices
· Strong knowledge of:
· TLS/SSL
· PKI and certificate lifecycle management
· Cryptographic protocols
· Experience with Azure cloud services
· Familiarity with enterprise security tools:
· Tanium, Tenable, CrowdStrike, ServiceNow
· Experience building:
· Risk scoring engines
· Security analytics platforms
· Exposure to Generative AI / AI-driven security use cases
· Nice to Have
· Experience with graph databases (Neo4j, etc.)
· Background in endpoint security, EDR, or vulnerability management platforms
· Knowledge of zero-trust architecture principles
· What We Offer
· Opportunity to work on cutting-edge security and cryptography platforms
· Collaborative, high-impact engineering environment
· Exposure to enterprise-scale systems and modern cloud technologies
· Competitive compensation and growth opportunities