Team Leader – PSP Integrations & Data Collection

Justt is the fastest-growing global leader in fighting illegitimate chargebacks for merchants. We are a strong and dynamic company providing a proprietary chargeback mitigation solution that leverages cutting-edge technology and deep payment expertise to efficiently and effectively manage disputes. This allows merchants to maximize revenue and focus entirely on their growth, unburdened by disputes.

About the Role

We are seeking a highly motivated Team Leader to spearhead the "Justtin" team, which forms the technical core of Justt's chargeback resolution platform.

You will lead a small, distributed team of engineers responsible for our central data pipeline: ingesting critical chargeback data from Payment Service Providers (PSPs) and securely submitting dispute responses back to them.

This is a balanced role requiring both strong technical expertise and effective team leadership. You will be hands-on in building critical integrations while simultaneously guiding your team's development, strategically prioritizing work, and ensuring the platform's reliability and stability.

Key Responsibilities

Team Leadership: Lead and mentor a distributed team of engineers (Israel + offshore).
Technical Ownership: Define and own the technical roadmap and priorities for the integration platform.
Hands-on Development: Drive the development of complex PSP integrations and critical platform features.
Platform Health: Ensure the stability, observability, and health monitoring of all PSP integrations.
Strategic Collaboration: Partner with Solution Engineering, Product, R&D, and executive leadership on company-wide strategic initiatives.
Operational Balance: Effectively balance reactive maintenance/support with proactive platform improvements and future-proofing.
Architecture & Best Practices: Drive key architectural decisions and enforce technical best practices across the team.
Resource Management: Manage capacity planning, resource allocation, and project timelines.

Incident Management: Lead incident response and escalation procedures for the critical data pipeline.

What We Offer

The opportunity to lead a mission-critical team with significant, direct business impact.
An engineering-driven company culture with highly talented and collaborative peers.
High autonomy to shape the team's technical direction and strategic focus.
Work with a modern and exciting stack: TypeScript, Puppeteer, NestJS, Nx, MongoDB, PostgreSQL, and AWS.

Excellent growth and professional development opportunities within a rapidly scaling fintech environment.

Requirements:

Must Have

3+ years of experience in backend software development.
2+ years of experience in team leadership or a formal technical leadership role.
Strong proficiency in TypeScript and Node.js.
Experience with the NestJS framework and managing an Nx Monorepo.
Hands-on experience with web scraping tools, specifically Puppeteer.
Deep practical knowledge of both MongoDB (NoSQL) and PostgreSQL (Relational).
Proven track record of successfully building and maintaining scalable integrations.
Excellent communication and stakeholder management skills.
Demonstrated ability to effectively balance deep technical work with people management responsibilities.
Experience managing and collaborating with remote/distributed team members.

Nice to Have

Professional background in payment systems or the broader fintech industry.
Experience designing and implementing robust platform stability and monitoring solutions.
Experience leveraging core AWS services (e.g., EventBridge, Lambda).
Understanding of modern DevOps practices and container orchestration (Kubernetes).

Track record of successfully reducing technical debt and measurably improving system reliability.