Senior/Lead Fullstack Developer (Billing)

Toggle is a product company building eSIM and VPN solutions for global connectivity across all major platforms, including mobile, desktop, and TV.

Role Overview

We are looking for a Senior Full-Stack Developer to join our Billing team and grow into a Lead role within 3–6 months.

You will take full technical ownership of Billing, including web payments (Stripe, Solidgate), subscription logic, and integrations with marketing and analytics platforms such as Voluum, Google Analytics, Meta, and others.

We are looking for someone who can build and improve technical processes within the team, lead and support developers, and represent the Billing team on technical topics when working with other departments.

This is a hands-on role. Currently, the team has one Full-Stack Developer, so a significant part of your time will be focused on development — from backend work with NestJS and TypeScript to payment flows on the frontend with React and Next.js.

Direct Manager: Product Billing Manager

Location: Minsk

Format of work: full-time role with flexible start times and a hybrid setup (4 days in the office, 1 remote)

Responsibilities

Technical Leadership & Ownership

• take full technical ownership of the Billing domain, including architecture, quality, stability, releases, and technical debt across payment, subscription, and analytics infrastructure;

• build and improve technical processes within the team, including coding and code review standards, testing, releases, incident management, task estimation and breakdown, and technical documentation;

• lead and mentor developers in the team: assign and prioritize tasks, run 1:1 meetings, evaluate performance, and take part in hiring and onboarding;

• work closely with the Product Manager on delivery estimates, risks, the technical roadmap, and technical debt priorities;

• make key architectural decisions and perform code reviews;

• work with other teams and departments, including Marketing, other Web teams…