Cyber Security Engineer
About The Company Lumin Digital is a pioneering provider of digital banking solutions, dedicated to transforming the financial services industry through innovative, cloud-native technology. Serving credit unions and banks, the company focuses on delivering seamless, engaging digital experiences that help financial institutions grow and strengthen their member relationships. As a fully cloud-based organization, Lumin Digital leverages the advantages of cloud infrastructure to ensure scalability, security, and agility, enabling clients to stay ahead in a rapidly evolving digital landscape. The company's culture emphasizes curiosity, innovation, trust, and respect, fostering an environment where diverse perspectives are valued, and continuous improvement is a core principle. With a focus on collaboration and bold experimentation, Lumin Digital empowers its teams to challenge the status quo and develop cutting-edge solutions that redefine digital banking. About The Role We are seeking a highly skilled Cybersecurity Engineer to join Lumin Digital's Security Engineering team. In this role, you will be instrumental in designing, building, and maintaining the security infrastructure that safeguards our cloud-hosted digital banking platform. Your work will involve developing automated, scalable security controls and telemetry pipelines across multiple environments, primarily utilizing AI-assisted engineering tools such as Claude Code, MCP-based integrations, and custom agent harnesses. You will oversee the lifecycle management of cryptographic materials, ensuring secure generation, rotation, and revocation processes are fully automated and version-controlled. Additionally, you will embed security controls into deployment pipelines to prevent vulnerabilities proactively and develop compliance automation systems that generate audit-ready evidence. Your expertise will support incident response efforts, threat modeling, and architectural reviews to uphold the highest security standards. This role offers an exciting opportunity to work at the intersection of security, automation, and AI, shaping the future of secure cloud-native banking solutions.
Qualifications
Bachelor's degree in Computer Science, Cybersecurity, Software Engineering, or related field, or equivalent experience 5+ years of hands-on security engineering experience with a focus on engineered systems At least 1 year of production experience using AI-assisted coding tools such as Claude Code, Gemini, Cursor, Codex, or similar Proficiency in Python or comparable programming languages for building production-quality code Experience with infrastructure-as-code tools like Terraform Deep familiarity with cloud platforms, particularly AWS, including services such as KMS, IAM, Lambda, and EKS Strong understanding of Kubernetes, containerized workloads, and CI/CD pipeline integration Knowledge of security telemetry platforms (e.g., OpenSearch), PKI, and cryptographic lifecycle management Familiarity with security compliance frameworks such as SOC 2, PCI DSS, CIS Benchmarks, and AWS Well-Architected Certifications such as AWS Security Specialty, HashiCorp Vault Associate, CKS, or equivalent are a plus Excellent communication skills, with the ability to translate complex security concepts into clear documentation Self-motivated with a proactive approach to automation and process improvement
Responsibilities
Design, build, and maintain security infrastructure across AWS and Kubernetes environments, including telemetry pipelines, cryptographic lifecycle management, and compliance automation Develop and automate agentic AI workflows for security tasks such as vulnerability code review, drift detection, and evidence collection Engineer cryptographic material lifecycle processes, ensuring secure, automated, and version-controlled key management Create security telemetry pipelines to detect, enrich, and route signals for auto-remediation systems Integrate security controls into deployment pipelines to prevent vulnerabilities at build time through policy-as-code and automated playbooks Develop systems for continuous control monitoring and audit-ready evidence collection Build and maintain threat models to inform security architecture decisions and promote reusable security patterns Review and approve architectural decisions related to security, focusing on secrets management and trust boundaries Support Security Operations during incident response by developing tooling, telemetry, and automation for detection, containment, and recovery Collaborate with risk, audit, vendor, and client teams to translate security requirements into engineered solutions and validate security posture Evaluate emerging AI-assisted engineering tools and promote successful practices within the team Operate security tools through Infrastructure as Code (IaC) and automation, occasionally using vendor consoles Perform additional duties as assigned to support team goals and security initiatives
Benefits
Comprehensive medical, dental, and vision insurance coverage 401(k) plan with company matching contributions Flexible paid time off (PTO) policy along with 12 paid holidays annually Paid sick leave and parental/family leave options Lifestyle spending account to support personal and professional needs Tuition reimbursement program to encourage continuous learning Cell phone stipend to support remote work needs Equal Opportunity Lumin Digital is an equal opportunity employer. We are committed to fostering a diverse and inclusive workplace where all qualified applicants are considered without regard to race, color, religion, sex, national origin, disability, protected veteran status, sexual orientation, gender identity, or any other legally protected characteristic. We believe that a diverse team enhances our ability to innovate and serve our clients effectively. All employment decisions are made based on qualifications, merit, and business needs.