Principal Distributed Systems Engineer

Role Overview

Africa Web Services (AfWS) is seeking a Principal Distributed Systems Engineer to design and build the technology powering a sovereign compute exchange and cloud infrastructure platform. The role involves working on distributed systems, mathematical optimization, secure billing, multi-tenant database security, and distributed edge computing.

Responsibilities

• Design a multi-threaded Mixed-Integer Linear Programming (MILP) engine to optimize compute resource bids against power, thermal, SLA, processor-state, and cooling constraints.
• Build an append-only, tamper-evident billing ledger using SHA-256 hash chaining, with integrity verification and tamper detection.
• Design and deploy PostgreSQL Row-Level Security (RLS) policies for strict multi-tenant data isolation, supported by access-validation middleware and security testing.
• Develop an edge compute orchestration backend to aggregate distributed nodes, identify available capacity, and coordinate workload distribution, encryption, execution, and result return.
• Deploy production-ready systems with the local Lagos development team, conduct load testing, and lead architectural handover sessions.

Requirements

• Strong experience in distributed systems and high-throughput backend architecture.
• Proficiency in Python backend engineering and performance-critical data pipelines.
• Advanced PostgreSQL and multi-tenant database architecture experience.
• Experience with Kubernetes, k3s, Docker, and cloud infrastructure.
• Knowledge of MILP, mathematical optimization, quantitative engineering, operational research, or resource allocation.
• Experience with cryptographic data structures, SHA-256, and data-integrity verification.
• Familiarity with distributed edge/IoT orchestration, MQTT, and IoT data pipelines.
• Strong technical documentation and architecture handover skills.

How to Apply

📧 Apply via: Send your CV and a concise technical portfolio or representative examples of previous work to HR.Nigeria@escrow-tech.co.uk.