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  • Posted: Dec 31, 2025
    Deadline: Not specified
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  • Neptune is on a mission to empower people through financial inter-mediation in Nigeria and Africa. We are poised to meet your business and personal financial needs.
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    Security Engineer

    Role Summary

    • We are seeking a highly skilled Security Engineer to design, implement, and continuously improve the security posture of Neptune MFB’s core banking systems, digital channels, APIs, and infrastructure. This role is hands-on, working closely with backend, DevOps, and product teams to ensure bank-grade security, regulatory compliance, and proactive threat mitigation.

    Key Responsibilities

    • Design and enforce application, infrastructure, and data security standards across all platforms
    • Implement and maintain API security (OAuth2, JWT, mTLS, rate limiting)
    • Conduct security reviews of microservices, gRPC APIs, and third-party integrations
    • Lead penetration testing, vulnerability scanning, and remediation
    • Secure databases (MySQL/PostgreSQL), backups, and replication pipelines
    • Monitor and respond to security incidents, breaches, and anomalies
    • Implement SIEM, logging, alerting, and audit trails
    • Embed security into the development lifecycle by automating code quality, vulnerability, and compliance checks within pull requests and CI/CD pipelines.
    • Ensure compliance with CBN guidelines, NDPR, PCI-DSS, and internal policies
    • Work with DevOps to secure Docker, Kubernetes, CI/CD pipelines, and secrets management
    • Support audits, regulatory reviews, and internal risk assessments

    Required Skills & Experience

    • 3+ years experience in security engineering or application security
    • Strong knowledge of web, API, and backend security
    • Experience securing Java Spring Boot, Node.js, and microservice architectures
    • Hands-on experience with: OAuth2 / OpenID Connect, TLS, encryption at rest & in transit, Firewalls, WAFs, IDS/IPS
    • Familiarity with cloud and on-prem security models
    • Strong understanding of banking / fintech security risks
    • Ability to translate security risks into clear business impact

    Nice to Have

    • Experience in financial services or core banking
    • Security certifications (CEH, CISSP, Security+, etc.)
    • Experience with ISO 27001 or SOC audits

    Check how your CV aligns with this job

    Method of Application

    Interested and qualified candidates should forward their CV to: recruitmentnmfb@gmail.com using the position as subject of email.

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