About OpenNet

OpenNet is a fast-growing technology company with products reaching 20+ countries worldwide.

We bring together talented people who enjoy solving challenges, moving fast, and learning from one another. We value collaboration, flexibility, growth, and work-life balance — creating an environment where people can do great work and enjoy the journey along the way.

About the role

You will own the security posture of a high-traffic, multi-country consumer platform from the internet edge inward. This is a hands-on engineering role, not an advisory one: detections, guardrails, and access controls all ship as code through the same review-and-deploy path as everything else. Alongside that, you'll pick up day-to-day DevOps work: CI/CD pipelines, infrastructure-as-code, and production deployments.

The scale you'd be working at

Dozens of EKS clusters and roughly 2,600+ nodes. Infrastructure partitioned per country across multiple African markets, each with its own regulatory surface. An in-house SIEM and bunch of security related detections.

If You

Are a self-driven DevOps Engineer with proven experience in large-scale micro-service systems hosted on AWS. Have a deep understanding of cloud architecture, AWS technologies and cloud security best practices. Follow the latest industry trends and are passionate about cloud computing and cybersecurity for large-scale systems

Key Responsibilities

Platform and Delivery Work in a team of DevOps and DBA professionals.
Improve existing infrastructure and CI/CD procedure.
Holistically improve all aspects of our infrastructure: reducing cost, improving build and deployment times, streamlining environment provisioning, lowering load times, and incorporating new techniques and technologies.
Take ownership of our cloud operations, including multi-account governance which account a resource belongs in, and how accounts reach each other safely.
Help reconfigure existing architecture to allow rapid deployment to new countries.

Edge & network security: Own the edge protection layer. Own network segmentation and exposure control: what is reachable from the internet, from the VPN, and from inside the cluster. Own DNS and egress control: resolver query logging and DNS firewalling to detect and block command-and-control and data-exfiltration paths.

Detection & response: Own cloud security posture management, plus runtime and host detection. Detection engineering and security monitoring design. Security incident response. Contribute to the team's incident reporting cadence. Identity,

Access & secrets: Drive least-privilege across AWS IAM, SSO permission sets and Kubernetes RBAC Contribute to our zero-trust internal-access program. Own the secrets lifecycle. Vulnerability & compliance: Own vulnerability and patch management. Liaise with external security agencies for annual audits, and run our own internal security sweeps. Treat compliance and audit as engineering work.

Our Stack:

Application Backend Framework: Spring Boot (Java Config + Embedded Tomcat)
Frontend Framework: VueJS
Micro Service Framework: Spring Cloud (Netflix Eureka + Ribbon + Feign)
Distributed Scheduling: Elastic Job

We Care More About How You Work and Live

Some things are simply essential: MacBook Pro, large monitor, Sony noise-cancelling headphones, snacks, coffee and fresh fruit.Some rewards are simply standard: holiday bonuses, , quarterly performance bonuses, and referral bonuses.

But what matters even more to us:

Flexible work hours & hybrid work
Annual health check-ups, gym subsidy & monthly massages
A nap room — because proper rest matters
Learning & development allowance
Team lunches, employee clubs & activities
12 weeks maternity leave & 14 days prenatal and paternity leave
Annual Company Retreat — from Dubai and Phuket to Bali, Vietnam and Cebu
Fully covered employee portion of Labor & National Health Insurance
Enterprise AI tools, including ChatGPT

Great work matters. So does having a life outside of it. If that sounds like your kind of workplace, we’d love to meet you.