Senior Site Reliability Engineer

Duplo is a Lagos-based fintech startup that enables businesses in Africa to automate their spend management, simplify cross-border payments, and control business finances all on one platform. Duplo is backed by top investors including Y Combinator, Tribe Capital, Commerce Ventures, Soma Capital and Oui Capital

Duplo is hiring a Senior Site Reliability Engineer to improve the availability, scalability and resilience of its backend systems that move money for businesses

Job Details

• Location: Lagos, Lagos State
• Work Arrangement: Hybrid
• Job Type: Full-Time
• Experience: Minimum of 7 years in SRE, DevOps or backend infrastructure

Key Responsibilities

• Lead technical design and implementation for large, high-risk or high-complexity initiatives that improve the availability, scalability and resilience of backend systems
• Design robust service boundaries, define maintainable infrastructure architecture and guide reliability standards across the engineering team
• Understand edge cases in money movement and design with operational safety and compliance in mind, not just uptime
• Own observability end to end (metrics, logging, tracing and alerting) so issues are caught before customers feel them
• Build and refine incident response processes, lead incident diagnosis and resolution in production, and drive thorough postmortems
• Work with product, compliance, finance operations, support, backend engineering and external providers
• Collaborate through code and infrastructure review, pairing and technical discussion
• Make sound decisions on architectural trade-offs, deployment strategies and rollout safety
• Drive capacity planning, performance tuning and cost-efficiency across infrastructure
• Define and track SLOs/SLIs and use them to prioritize reliability work against feature delivery
• Mentor other engineers and raise engineering and operational standards

Requirements

• Minimum of 7 years experience in SRE, DevOps or backend infrastructure roles, with deep expertise in Kubernetes, Docker and AWS in production
• Strong scripting/programming ability (TypeScript and/or another language) to build internal tools and automate operational work
• Practical expertise with PostgreSQL operations at scale, including replication, backup/recovery and performance tuning
• Practical expertise with Redis for caching, coordination, rate-limiting and distributed locking
• Strong command of observability tooling such as Prometheus, Grafana, Datadog, ELK or equivalent
• Experience designing and maintaining CI/CD pipelines, infrastructure as code (Terraform) and secrets management
• Experience in fintech or other high-stakes systems, including provider integration resilience, failover design and compliance-sensitive infrastructure
• A track record of owning complex incidents from detection through resolution and postmortem
• Strong communication skills across engineering, product, compliance and external partners
• Experience mentoring or raising the operational standard of a team

How to Apply

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