Senior IT & Cloud Infrastructure Engineer (AWS / Digital Ocean) at OGateway

OGateway

  • Accra
  • Permanent
  • Full-time
  • 2 months ago
Job DescriptionOpen Gateway Company LTD (OGateway) is a high-growth fintech enabler building next-generation payment infrastructure for global businesses. We are committed to operational excellence, security-first engineering, and scalable cloud-native architecture - all anchored in compliance, client-centricity, and innovation.We are seeking a seasoned Senior IT & Cloud Infrastructure Engineer to lead the design, automation, security, and optimization of our AWS-based infrastructure - ensuring PCI-DSS readiness, resilience, and cost-efficiency as transaction volumes scale.Key ResponsibilitiesCloud Infrastructure & Automation
  • Own end-to-end AWS infrastructure - provisioning, scaling, monitoring, and optimization using Terraform (IaC).
  • Ensure 100% automated deployment coverage for infrastructure resources .
  • Maintain
95% environment consistency (zero drift) across dev, staging, and prod environments. * Design and manage CI/CD pipelines using GitHub Actions, targeting85% pipeline reliability (no DevOps-related failures).Security, Compliance & Risk Management
  • Lead infrastructure security posture for PCI-DSS Level 1, ISO 27001:2022, and Data protection standards.
  • Ensure 100% of critical vulnerabilities are remediated within 14 days and high vulnerabilities within 30 days.
  • Conduct quarterly reviews of AWS IAM access policies, enforcing least-privilege and Just-in-Time (JIT) access.
  • Embed security into pipelines (SAST/DAST/IaC scanning), secrets management, and encryption-at-rest/in-transit.
Scalability, Reliability & Cost Optimization
  • Architect and tune ECS/Fargate services with dynamic autoscaling to handle traffic spikes.
  • Optimize cloud costs through right-sizing, reserved instances, spot strategies, and open-source/self-hosted tooling - balancing performance, uptime (99% SLA for core APIs), and spend.
  • Reduce unplanned outages to
2 per month via proactive observability, chaos engineering, and post-mortem rigor.Leadership & Enablement
  • Mentor and manage a small infrastructure/engineering team - fostering growth, ownership, and collaboration.
  • Drive culture of continuous innovation, client-centricity, and impact-driven delivery.
  • Support development plans and upskilling of your team.
Required Skills & Experience
  • 5+ years in cloud infrastructure engineering, with 3+ years focused on AWS (VPC, IAM, EKS/ECS, RDS, S3, Lambda, CloudWatch, KMS, etc.).
  • Proven expertise in Terraform (modules, state management, remote backends), GitHub Actions, and scripting (Bash/Python).
  • Deep understanding of micro-services, container orchestration, service mesh (e.g., App Mesh), and distributed systems.
  • Hands-on experience securing and certifying infrastructure for PCI-DSS, preferably in payments or fintech.
  • Experience with workflow engines - bonus if used in payment reconciliation or settlement flows.
  • Strong grasp of cost-optimization levers: compute right-sizing, auto-scaling policies, tagging governance, FinOps practices.
  • Leadership experience: coaching junior engineers, conducting architecture reviews, and driving operational excellence.
  • Strong communication, documentation, and stakeholder-management skills.
Why Join?
  • Lead cloud transformation at a critical growth phase.
  • Architect infrastructure for millions of transactions - real impact, real scale.
  • Work with a values-driven team obsessed with security, reliability, and innovation.
  • Opportunity for extension and potential transition to permanent leadership.
HOW TO APPLYPlease submit your CV and a cover letter highlighting:
  • Your most impactful cloud infrastructure project,
  • One major cost-optimization win you led,
  • Your experience mentoring engineers in IaC/security practices.
Submit to:Subject: Senior IT & Cloud Infrastructure Engineer (AWS / Digital Ocean)Timelines
  • CV + Cover Letter Submission Deadline: 21st November 2025
  • Interviews: 24th November 2025 to 28th November 2025
  • Handover Phase: 15th December 2025 to 2nd January 2026 (2 weeks)
  • Full Start Date: 5th January 2026

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