VP & Staff Software Engineer(s)

10d•Remote

About The Position

Share is a venture-backed internet infrastructure network building Africa’s backbone. The company aggregates underutilized telecom infrastructure, fiber, subsea cables, and data centers, and provides ISPs with scalable access to bandwidth without traditional upfront costs. Through an open-access model, local internet providers can deliver dramatically faster speeds to their subscribers without raising their own costs. Share’s network spans thousands of kilometers of fiber, 12 infrastructure providers, and 10 data centers, reaching over 8 million people across East Africa. The platform team builds the software that makes this work: billing, payments, subscriber management, RADIUS-based network authentication, and integrations with ISP billing systems and mobile money providers. We are replacing legacy, non-API systems with a modern API platform, and real money is already flowing through the system. This is a small, high-intensity engineering team building core infrastructure under real deadlines. You will own entire domains, not tickets. The role We are hiring a VP & Staff Software Engineer to take ownership of the platform’s most critical technical domains: the payments pipeline (collections, revenue splitting, treasury operations), the billing engine (subscription lifecycle, cycle management, automated renewals), and the integration layer (BSS/OSS sync with partner systems). You will work directly with the CTO and a small team of engineers to ship production systems that handle real financial transactions for real ISP partners. This is the most senior individual contributor role on the engineering team. You are expected to make architectural decisions, write production code, review others’ work, and unblock the team when they hit technical walls. You will not manage people. You will build systems.

Requirements

7+ years of professional software engineering experience, with at least 3 years in backend systems handling real financial transactions (payments, billing, ledger, or treasury)
Deep TypeScript/Node.js expertise. Ability to design a NestJS microservice from scratch.
Production experience with payment gateway integrations (M-Pesa, Stripe, Adyen, or similar). Understanding of STK push flows, webhook idempotency, callback signature verification, and reconciliation.
Strong PostgreSQL skills. Ability to design schemas for financial data, write migrations, and reason about transaction isolation and locking.
Experience with event-driven architectures (Kafka, RabbitMQ, or similar). Understanding of request-reply and fire-and-forget patterns and their appropriate use cases.
Ability to take a spec document and turn it into production code without waiting for tasks to be broken down.
Daily use of AI coding assistants (Claude, Cursor, Copilot, or similar) and ability to articulate how they change workflow (architectural reasoning, spec review, debugging).
Comfort working with AI-generated specifications, critically evaluating them, pushing back on inaccuracies, and extending incomplete ones.
Willingness to contribute to improving AI-assisted workflows (prompts, context files, session structures).

Nice To Haves

Experience in East African fintech or mobile money ecosystems (M-Pesa, SasaPay, Airtel Money).
Understanding of Kenya’s payment infrastructure and regulatory environment.
Experience with ISP billing systems, RADIUS protocols, or telecommunications platforms.
Experience with Prisma ORM and NestJS specifically.
Production experience with multi-tenant SaaS platforms (provider-scoped data, API key auth, webhook delivery).
Track record of migrating monolithic systems to microservices while keeping production running.

Responsibilities

Own the payments domain, including SasaPay collections integration (C2B API, STK push, IPN handling), revenue split engine (per-partner, per-BNG percentage logic), ChoiceBank treasury operations (withdrawals, internal transfers, OTP flows), and the payment completion handler that bridges payment confirmation to subscriber activation.
Own the billing engine, including Subscription and BillingCycle lifecycle, automated renewal cron, grace period enforcement, plan change mid-cycle logic, and the event-driven communication triggers that notify subscribers at every billing moment.
Own the integration layer, including Splynx adapter (plan sync outbound, subscriber sync inbound, activation webhooks), custom webhook delivery engine, and the event routing that connects domain events to external system notifications.
Make architecture decisions regarding service boundaries, event contracts (Kafka), data model evolution (Prisma/PostgreSQL), API design for both public and private endpoints, and the migration strategy from the legacy Next.js monolith to the NestJS microservices platform.
Write production code, review others’ work, and unblock the team when they hit technical walls.