Requirements
- 5+ years of professional systems engineering or network engineering experience, with at least 2 years working directly with RADIUS (FreeRADIUS, Radiator, or NPS) in a production ISP or telecommunications environment
- Deep FreeRADIUS expertise. You can configure virtual servers, write unlang policies, set up proxy realms, configure SQL modules, and debug authentication failures from packet captures.
- Strong Linux systems administration. You manage production servers, write deployment scripts, configure firewalls, and troubleshoot networking issues at the OS level.
- Understanding of PPPoE authentication, DHCP, IP pool management, and how BNGs interact with RADIUS servers. You don’t need to be a MikroTik expert, but you need to understand what the BNG expects from RADIUS.
- Experience deploying and managing infrastructure in production — not just dev environments. You understand uptime requirements, failover, and what happens when a RADIUS server goes down (subscribers can’t authenticate).
- Comfortable with scripting and light application development. You don’t need to be a full-stack developer, but you should be able to write and maintain a Hono/Express API, work with SQL databases, and automate deployments.
Nice to Have
- Experience in East African ISP or telecommunications infrastructure. Understanding of the operational realities: MikroTik-dominant networks, mixed vendor environments, bandwidth constraints, and the practical challenges of managing subscriber authentication at scale in this market.
- Experience with FreeRADIUS proxy configurations (proxying between multiple RADIUS servers with failover logic).
- Experience with CoA (Change of Authorization) and Disconnect-Message implementation.
- Docker and container orchestration for networking services.
- Experience working alongside software engineering teams — you can read a NestJS service, understand an event-driven architecture diagram, and communicate technical constraints clearly to developers.
- AI-augmented engineering (required mindset) Share operates with AI tools as a core part of engineering workflows. This applies to systems engineering as much as software development. Our infrastructure documentation, configuration templates, troubleshooting runbooks, and deployment scripts are all developed with AI assistance. What this means for you: You use AI tools (Claude, ChatGPT, Copilot, or similar) for configuration generation, troubleshooting, documentation, and scripting. You don’t memorize FreeRADIUS syntax — you know what you need and use AI to get there faster. You are comfortable with AI-generated specifications and can validate them against real-world behavior. You see AI as a way to handle the breadth of systems knowledge required for this role (RADIUS, Linux, networking, databases, deployment, monitoring) without needing to hold it all in your head. You contribute to the team’s AI workflows by writing clear, structured documentation that both humans and AI can work with.
Benefits
- Competitive compensation commensurate with experience.
- Equity participation available.
Work Arrangement
Hybrid
Additional Information
- Physical proximity to ISP partner sites is a significant advantage for this role, BNG configuration and troubleshooting sometimes require on-site presence.
- This is a foundational hire; you will define how Share’s network infrastructure scales.
