Senior Backend Engineer (Go) — Lead, Scale, Mentor

Sezzle; Argentina; On-site; ARS 84,512,000 - 160,573,000; Full time

Job summary

Sezzle is seeking a Senior Software Engineer to design and implement scalable backend services using Go, with collaboration across product and support. You will mentor teammates, contribute to distributed architecture, and deliver high-quality features for a fast-growing fintech platform.

The role emphasizes leadership, cross-team collaboration, and delivering reliable APIs in a cloud-based environment. This is a full-time on-site position in a dynamic tech team.

Qualifications

• 7+ years of full-stack software engineering experience.
• Experience building REST APIs using Go (preferred) and other languages.
• Experience in distributed cloud-based architecture and message queues.
• BS in Computer Science or equivalent.

Responsibilities

• Design software applications and features using Go and React.
• Build and maintain distributed architecture with scalable services.
• Collaborate with stakeholders to design market-winning products.
• Develop metrics to drive continuous improvement and product quality.
• Lead small development teams and mentor teammates.

Skills

Full-stack software engineering

Consensus building

Action-oriented

Deliver results

Mentorship

Education

BS in Computer Science or similar degree

Tools

Go

Java

Python

REST APIs

RabbitMQ

Kafka

SQS

Kubernetes

AWS

Job description

Sezzle is seeking a Senior Software Engineer to design and implement scalable backend services using Go, with collaboration across product and support. You will mentor teammates, contribute to distributed architecture, and deliver high-quality features for a fast-growing fintech platform.

The role emphasizes leadership, cross-team collaboration, and delivering reliable APIs in a cloud-based environment. This is a full-time on-site position in a dynamic tech team.