Principal Software Engineer – Identity & Access Management (Chile)

Sezzle is hiring a Principal Software Engineer to own and lead the evolution of authentication and authorisation across the platform, based in Chile and working fully remotely.

The company is building the next generation of its auth platform around a purpose-built API auth gateway and a clean set of identity and access management services. You would own the technical vision, architecture and migration strategy for that work.

The role covers architecting scalable auth services in Golang on AWS, leading phased zero-downtime migrations of auth traffic, and setting standards for OAuth2 and OpenID Connect, token strategy, service-to-service authentication and fine-grained authorisation.

Sezzle requires demonstrated AI-forward engineering for this role, including active daily use of tooling such as Claude Code, Codex or Cursor.

ABOUT SEZZLE

Sezzle is a NASDAQ-listed fintech company (ticker SEZL) with a mission to financially empower the next generation. Its payment platform provides interest-free installment plans to consumers, driving sales for thousands of eCommerce merchants.

The company reports gross annual revenue above 450 million dollars and net income over 133 million dollars, with roughly 400 employees and contractors.

Sezzle also holds B Corp certification, which requires meeting verified standards on social and environmental performance, transparency and accountability.

WHY SEZZLE APPEARS SO OFTEN ON THIS BOARD

Sezzle is one of the few US fintech companies that hires country by country across Latin America rather than treating the region as an afterthought. Their careers board carries separate listings for Argentina, Brazil, Chile, Colombia, Mexico, Peru and Turkey, each with local work authorisation as the requirement.

They also publish salary ranges in USD on almost every listing, which is unusual for LATAM-based roles and makes it far easier to judge an offer against the market.

TECHNOLOGY STACK

• Backend: Golang, the primary language for critical services
• Frontend: TypeScript, React and React Native
• Databases: MySQL, PostgreSQL, Elasticsearch
• DevOps and Cloud: AWS, Kubernetes
• Version control and CI/CD: Git, GitLab
• Testing: developer-driven, focused on automated unit, integration and end-to-end tests

Sezzle is focused on open source and builds what it can before buying.

WORKING AT SEZZLE

The company describes its culture as defined by the people it hires rather than by startup perks. Engineering has defined promotion paths at all levels, and the company states a strong culture of internal progression.

Interview process is typically a recruiter screen, then an interview with engineers, then an offer.

AI EXPERIENCE IS EXPECTED

Sezzle roles consistently ask candidates to demonstrate experience with Claude or equivalent large language model tools. AI-assisted development is treated as a standard part of the job rather than a bonus skill.

ELIGIBILITY

You must hold eligible work authorisation for the country the role is posted in. Applications typically ask you to confirm this, and to state your monthly gross salary expectation in USD.

No relocation or visa sponsorship is offered.