Senior Site Reliability Engineer

Sezzle

Senior Site Reliability Engineer at Sezzle enhancing infrastructure reliability and scalability through modern tech solutions. Collaborating across teams while driving innovation in the fintech space.

Posted 7/23/2026full-timeRemote • 🇦🇷 ArgentinaSenior💰 $7,000 - $12,000 per monthWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in architecting and building scalable infrastructure solutions using Kubernetes and AWS, with a strong focus on reliability, observability, and performance optimization. Proven ability to lead teams, mentor engineers, and drive AI enablement efforts to enhance infrastructure and developer productivity.

Highest-signal resume keywords

KubernetesAWSGolangSQL-Based RDBMSObservability Tools

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Infrastructure EngineeringSoftware EngineeringRESTful API DevelopmentDistributed Systems DesignPerformance Optimization

Soft Skills

MentoringCollaborationInfluencing DecisionsDriving Innovation

Tools & Technologies

PrometheusGrafanaDatadogNew Relic

Certifications & Qualifications

Bachelor’s Degree in Computer Science

Industry Keywords

SREMicroservices ArchitectureCapacity PlanningSLAsAnomaly Detection

Tech Stack

Tools & technologies

AWSDistributed SystemsGoGrafanaKubernetesMicroservicesMySQLPostgresPrometheusRDBMSSQL

About the role

Key responsibilities & impact

Architect, upgrade, design, and build scalable infrastructure solutions leveraging Kubernetes, AWS, RDS (MySQL/Postgres), and modern distributed patterns.
Help drive the infrastructure team’s roadmap, leading us to higher levels of reliability, recoverability, and scalability.
Drive capacity planning, benchmarking, and work with the team to stress test our systems, find bottlenecks, and prepare for further growth in the business.
Define, maintain and enforce SLAs and alerts across our infrastructure.
Lead the teams towards stronger signal anomaly detection, better, more flexible alerting.
Help Lead Sezzle’s AI enablement efforts, identifying opportunities to apply AI and automation to enhance infrastructure reliability, developer productivity, and internal tooling.
Build in consistency and scalability across a distributed microservices architecture while maintaining performance and reliability.
Establish and evolve engineering best practices for observability, security, and CI/CD across teams.
Mentor engineers and champion a culture of learning, innovation, and operational excellence.
Collaborate cross-functionally to translate business goals into technical roadmaps and deliver results that matter.

Requirements

What you’ll need

12+ years of professional software engineering or infrastructure engineering experience, including significant SRE and backend experience.
Deployed significant changes to a production application or infrastructure configuration in the past 30 days.
Strong proficiency in Golang, with experience building and maintaining RESTful APIs.
Expertise with SQL-based RDBMS (MySQL, PostgreSQL) and experience optimizing schema and queries for performance at scale.
Proficiency in observability tools (Prometheus, Grafana, Datadog, New Relic).
Solid understanding of distributed systems design patterns (e.g., transactional outbox, event-driven architecture and stream processing, queues).
Demonstrated ability to bring new ideas forward, influence decisions, and lead complex technical initiatives.
Bachelor’s degree in Computer Science or equivalent practical experience.

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Sezzle Website LinkedIn All Job Openings 201 - 500 employees Founded 2016 💳 Fintech 👥 B2C 🛍️ eCommerce Fintech
B2C
eCommerce Sezzle is a financial technology company that offers a "buy now, pay later" service, allowing consumers to purchase products and pay for them in four interest-free installments over six weeks. The Sezzle app provides users with a flexible financing alternative to traditional credit cards, enabling instant approval decisions without impacting credit scores. Sezzle partners with various top brands, including Amazon, Walmart, and Target, to offer in-app and in-store payment options. The company's mission is to empower consumers financially by providing more financial freedom and control. It is available as a mobile app, with millions of downloads and high user ratings, and works towards accessibility and inclusion on its platform. Senior Site Reliability Engineer Job not on LinkedIn 🔥 1 hour ago 🇦🇷 Argentina – Remote 💵 $7k - $12k / month ⏰ Full Time 🟠 Senior ⛑ DevOps & Site Reliability Engineer (SRE) AWS Distributed Systems Grafana Kubernetes Microservices MySQL Postgres Prometheus RDBMS SQL Go Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Architect, upgrade, design, and build scalable infrastructure solutions leveraging Kubernetes, AWS, RDS (MySQL/Postgres), and modern distributed patterns.
Help drive the infrastructure team’s roadmap, leading us to higher levels of reliability, recoverability, and scalability.
Drive capacity planning, benchmarking, and work with the team to stress test our systems, find bottlenecks, and prepare for further growth in the business.
Define, maintain and enforce SLAs and alerts across our infrastructure.
Lead the teams towards stronger signal anomaly detection, better, more flexible alerting.
Help Lead Sezzle’s AI enablement efforts, identifying opportunities to apply AI and automation to enhance infrastructure reliability, developer productivity, and internal tooling.
Build in consistency and scalability across a distributed microservices architecture while maintaining performance and reliability.
Establish and evolve engineering best practices for observability, security, and CI/CD across teams.
Mentor engineers and champion a culture of learning, innovation, and operational excellence.
Collaborate cross-functionally to translate business goals into technical roadmaps and deliver results that matter. 🎯 Requirements
12+ years of professional software engineering or infrastructure engineering experience, including significant SRE and backend experience.
Deployed significant changes to a production application or infrastructure configuration in the past 30 days.
Strong proficiency in Golang, with experience building and maintaining RESTful APIs.
Expertise with SQL-based RDBMS (MySQL, PostgreSQL) and experience optimizing schema and queries for performance at scale.
Proficiency in observability tools (Prometheus, Grafana, Datadog, New Relic).
Solid understanding of distributed systems design patterns (e.g., transactional outbox, event-driven architecture and stream processing, queues).
Demonstrated ability to bring new ideas forward, influence decisions, and lead complex technical initiatives.
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