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Principal Infrastructure Engineer

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Principal Infrastructure Engineer in Others new

  • Bogotá, Colombia

Responsibilities

  • Own the architecture and evolution of core infrastructure as traffic, data volume, and workload complexity grow.
  • Build capacity models, run load and stress tests, diagnose bottlenecks, and improve throughput, latency, reliability, and cost efficiency.
  • Design resilient AWS account, IAM, networking, multi-AZ, and multi-region architectures.
  • Build and operate Kubernetes platforms, including cluster lifecycle, workload isolation, autoscaling, upgrades, and deployment reliability.
  • Scale and optimize Aurora RDS for MySQL and Postgres, including queries, indexes, replication, failover, migrations, and recovery.
  • Implement reliability patterns such as service-level objectives, error budgets, failure isolation, backpressure, load shedding, and safe retries.
  • Participate in on-call rotations and lead technical recovery during serious incidents and outages.
  • Design, test, and document disaster recovery, backup, restore, and failover mechanisms.
  • Build infrastructure-as-code, deployment automation, operational tooling, observability, and safe infrastructure migrations.
  • Improve cloud cost efficiency and build AI-assisted tooling for incident investigation, runbooks, anomaly analysis, and toil reduction.
  • Write architecture proposals, evaluate tradeoffs through prototypes and benchmarks, and document shared infrastructure behavior and failure modes.

Requirements

  • Bachelor’s degree in Computer Science or a similar technical field is required.
  • 12+ years of experience across infrastructure, platform, site reliability, software development, or related engineering disciplines.
  • Deep production expertise with AWS, including compute, IAM, multi-account architectures, VPC design, and private connectivity.
  • Deep production expertise with Kubernetes, including cluster lifecycle, scheduling, resource management, autoscaling, networking, and troubleshooting; EKS is strongly preferred.
  • Deep expertise with RDS/Aurora using MySQL and/or Postgres, including performance, indexing, replication, high availability, failover, backup, and recovery.
  • Demonstrated delivery of infrastructure scaling improvements with measurable gains in capacity, latency, reliability, or cost efficiency.
  • Strong coding and automation skills with Golang, Python, or similar languages, plus Terraform or equivalent infrastructure-as-code experience.
  • Strong systems fundamentals in Linux, networking, DNS, TLS, storage, concurrency, and distributed-system failure modes.
  • Experience operating 24/7 high-availability platforms, responding to incidents, and implementing postmortem remediation.
  • Experience with disaster recovery, observability, load testing, capacity planning, and safe CI/CD practices.
  • Active use of AI tooling in engineering or operations with the ability to verify generated code, recommendations, and operational actions.
  • Ability to solve ambiguous system-wide technical problems and collaborate across engineering disciplines.
  • Preferred qualifications include fintech, payments, or banking experience; multi-region architectures; chaos and failure testing; Prometheus, Grafana, Loki, or Tempo; internal platform and self-service tooling; and AI-assisted incident investigation or operational automation.

Benefits

  • Full-time remote position.
  • Monthly gross compensation range of $12,500-$20,800 based on location and experience.
  • Opportunity to work on infrastructure supporting fintech and payment workloads.
  • Collaborative culture with engineering, data, and other technically diverse teams.

Sezzle

Sezzle builds a buy now, pay later platform that lets consumers split purchases into interest-free installments online and in stores, integrated with e-commerce and retail merchants. The company earns revenue from merchant fees and related consumer charges and provides underwriting and payment pr...

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