HIRING
Principal Distributed Systems Engineer | Escrow-Tech
📍 Location: Hybrid — minimum 50% on-site in Lagos
Job Type: Independent Retainer — Milestone-Based Deliverable Contract
Job Field: Distributed Systems / Backend Engineering
About the Role
The successful candidate will help architect and own the systems behind a sovereign cloud and distributed edge compute network, including a compute workload exchange designed to manage concurrent resource bids, infrastructure constraints, billing records and distributed compute capacity.
You will work across algorithmic optimisation, Python backend engineering, PostgreSQL security, cryptography, Kubernetes/k3s and edge orchestration.
Key Responsibilities
* Design and implement a multi-threaded Mixed-Integer Linear Programming (MILP) optimisation engine capable of evaluating compute resource bids against constraints such as power, thermal limits, SLA priorities, processor states and cooling capacity.
* Build an append-only, tamper-evident transaction ledger using SHA-256 hash chaining to track resource allocation, billing events and energy-curtailment credits, with integrity verification and tamper-detection mechanisms.
* Design and deploy advanced PostgreSQL Row-Level Security (RLS) policies to enforce strict multi-tenant data isolation at the database layer, supported by access-validation middleware and security testing.
* Develop the orchestration backend that aggregates distributed edge compute nodes, identifies available capacity and coordinates workload distribution, encryption, execution and result return across the network.
* During the final execution phase, work with the local development team in Lagos to deploy production-ready systems, conduct load testing and lead structured architectural handover sessions.
Requirements
* Strong experience in distributed systems and high-throughput backend architecture.
* Python backend engineering and performance-critical data pipelines experience.
* Advanced PostgreSQL and multi-tenant database architecture experience.
* Experience with Kubernetes, k3s, Docker and cloud infrastructure.
* Experience with MILP and mathematical optimisation.
* Experience in quantitative engineering, operational research or resource allocation.
* Experience with cryptographic and tamper-evident data structures.
* Knowledge of SHA-256 and data-integrity verification.
* Experience with distributed edge/IoT orchestration.
* Experience with MQTT and IoT data pipelines.
* Technical documentation and architecture handover experience.
* Experience in quantitative trading infrastructure, operational research platforms, high-throughput fintech systems or large-scale SaaS multi-tenancy is particularly relevant to the role.
How to Apply
📧 Apply via: Send your CV to [email protected]
Please include a concise technical portfolio or representative examples of previous work in areas such as MILP/optimisation, distributed backend architecture or multi-tenant database security. Clearly state the role you are applying for in the email subject line.
Additional Details
* Duration: July 2026 – December 2026
* Reporting: Technical Partner Project Manager
* Potential: Long-term engagement post-launch
* Knowledge Transfer: Weekly 90-minute technical walkthroughs; comprehensive architecture manuals; API, solver and database documentation; in-person knowledge transfer during Lagos-based periods; formal final knowledge-transfer sign-off, requiring the local team to independently build the systems from source.
Key Milestones
* M1: MILP Solver — Python + C
* M2: Immutable Billing Ledger — SHA-256
* M3: PostgreSQL RLS — Multi-Tenant Isolation
* M4: Edge Aggregator — k3s + Orchestration
* M5: Production Deployment & Handover
