Senior Software Engineer

Responsibilities:

Take ownership of the existing KonectX codebase: a React (Vite) frontend, a Node.js/Express API, and MongoDB, and bring it to a completed, documented, tested state

Build and complete the operator dashboard: hotspot management, voucher issuance, session monitoring, and earnings visibility

Implement and maintain the revenue settlement engine: multi-party splits, credit maturation windows, payout requests, and an auditable ledger

Integrate payment rails for Nigeria and for Francophone markets, including card, bank transfer, and mobile money

Work on captive portal and router-side integration so that sessions are recorded reliably even on unstable links

Maintain and improve our Web3 layer: $KXT balance accrual, distribution jobs, and wallet-facing views on Celo

Own deployment and uptime on our VPS estate: nginx, PM2, Cloudflare, environment and secret hygiene, backups, monitoring, and incident response

Deliver every user-facing surface

Write documentation as you go: our engineering knowledge lives in Confluence, and undocumented work is treated as unfinished work

Work with our CISO to close outstanding security items and keep the platform compliant with the NDPA 2023

Requirements:

5 years building and shipping production web applications, with at least 2 years of genuine full-stack ownership

Strong JavaScript/TypeScript. Deep, practical Node.js and Express experience

Strong React, including hooks, state management, and modern build tooling such as Vite

Real MongoDB experience: schema design, indexing, aggregation, and knowing when a document database is the wrong choice

You have deployed and operated your own servers. Linux, nginx, process managers, TLS, DNS, and reverse proxies are not mysteries to you

You have written code that handles money, and you understand why that code is different from other code

Git discipline, code review habits, and the ability to write tests that catch real regressions

You can pick up an unfamiliar codebase, understand it, and improve it without breaking it

Clear written English

Preferred Requirements:

Experience with Web3: ERC-20 tokens, EVM chains, ethers.js or viem, wallet integration. Celo specifically is a bonus

Experience with payment integrations in Africa: Paystack, Flutterwave, mobile money aggregators

Networking exposure: captive portals, RADIUS, MikroTik or OpenWRT, hotspot management

Experience as the most senior engineer on a product, or first engineering hire

Who this role is not for:

Engineers who have only worked inside a large team on a narrow slice of a system

Anyone who needs a fully specified ticket before they can start

Anyone uncomfortable being accountable for production uptime

Remuneration: NGN 400,000 – 600,000, Gross monthly

Benefits:

Full technical ownership of a live product with paying users and a real expansion roadmap

Direct access to founders; no layers between you and the decisions

Hybrid working: three days onsite at our Lekki office, two days remote

Paid annual leave, statutory pension and PAYE handled, and a formal employment contract

Hardware and tooling provided

Exposure to DePIN, Web3, and cross-border African infrastructure — a rare combination on a Nigerian CV

A three-month probation period with clear, written success criteria agreed in week one

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