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Sr SRE/ Platform Engineer

Roles & Responsibilities

  • 4+ years in SRE/DevOps with a background in software development and experience building and operating production systems at scale.
  • Experience with large-scale Linux environments on AWS and ability to debug complex systems when abstraction layers fail.
  • Proficiency in Python, Go, and Bash; Java or TypeScript/Next.js experience is a plus.
  • Strong cloud foundations (Networking, IAM, storage, compute, databases, caching) and hands-on experience with AWS EKS and Kubernetes.

Requirements:

  • Cloud Systems Troubleshooting: Resolve complex performance bottlenecks across the stackβ€”from Linux kernel tuning and networking to AWS architectural patternsβ€”identifying root causes beyond restarts.
  • Performance Engineering: Collaborate with developers to design and execute rigorous load and stress tests, guiding code or infrastructure changes to handle traffic spikes.
  • Infrastructure as Code and FinOps: Maintain Terraform-based platform infrastructure; Pulumi experience a plus; lead cloud-cost optimization to maximize performance and reliability per dollar.
  • Observability and Engineering Culture: Drive modern observability with deep, actionable visibility across services; build self-service tooling and mentor teams to improve reliability.

Job description

RYZ Labs is looking for a Sr SRE/ Platform Engineer to join one of our clients’ e-commerce DevOps engineering team. You will bridge the gap between their apps (Java/TypeScript/NextJS) and their infrastructure (AWS- EKS, EC2). Your goal is to ensure their platform is resilient under peak load, observable by default, an cost-optimized by design.

Qualifications:

- Hybrid Background: 4+ years in SRE/DevOps with a background in Software Development, building and
operating production systems at scale.
- Systems Knowledge: Experience with large-scale, business-critical Linux environments on AWS. You know
how to debug a system when abstraction layers fail.
- Programming: High proficiency in Python, Go, Bash. Experience with Java or TypeScript/Next.jsis a
significant plus.
- Foundations: Solid cloud foundations (networking, identity/IAM, storage, compute, databases, and AWS Cloud caching services) and managed Kubernetes (AWS EKS) fundamentals.
- Security: Familiarity with access boundaries, guardrails, secrets management, and encryption.
- E-commerce Domain: Experience with e-commerce, billing/fulfillment systems, or the Shopify ecosystem is a
big plus.

Responsibilities:

- Cloud & Systems Troubleshooting: Solve complex performance bottlenecks by navigating the entire stack -
from GNU/Linux kernel tuning and networking (TCP/IP, DNS) to modernAWS architectural trends. You
understand how cloud-native abstractions interact with the underlying hardware and never stop at a "restart" but have the tenacity to find the true root cause.
- Performance Engineering: Partner with developers as a peer to architect and execute rigorous load and
stress tests. You take ownership of the results, helping teams refactor code or infrastructure to ensure we stay
up when traffic spikes.
- Infrastructure as Code: Maintain and scale our platform usingTerraform. (Experience with Pulumiis
welcomed).
- FinOps as a Product: Treat "Cost" as a primary engineering metric. You will lead cloud cost optimization,
ensuring every dollar spent translates to performance and reliability.
- Modern Observability: Stay ahead of the curve on observability practices. You will ensure we have deep,
actionable visibility across our services, regardless of the underlying tool (Datadog, OpenTelemetry, etc.).
- Engineering Culture: Act as a force multiplier. You build "paved roads" and self-service tools that allow
developers to own their reliability without the friction. Work closely with Engineering, Product, Project Managers and CX to troubleshoot time-sensitive production issues. You act as a mentor, sharing knowledge to raise the collective expertise of the entire organization.

About RYZ Labs:
RYZ Labs is a startup studio founded in 2021 by two lifelong entrepreneurs. The founders of RYZ have worked at some of the world's largest tech companies and some of the most iconic consumer brands. They have lived and worked in Argentina for many years and have decades of experience in Latam. What brought them together was their passion for the early phases of company creation and the idea of attracting the brightest talents in order to build industry-defining companies in a post-pandemic world.

Our teams are remote and distributed throughout the US and Latam. They use the latest cutting-edge cloud computing technologies to create scalable and resilient applications. We aim to provide diverse product solutions for different industries and plan to build a large number of startups in the upcoming years.

At RYZ, you will find yourself working with autonomy and efficiency, owning every step of your development. We provide an environment of opportunities, learning, growth, expansion, and challenging projects. You will deepen your experience while sharing and learning from a team of great professionals and specialists.

Our values and what to expect:
- Customer First Mentality - Every decision we make should be made through the lens of the customer.
- Bias for Action - urgency is critical, expect that the timeline to get something done is accelerated.
- Ownership - Step up if you see an opportunity to help, even if it's not your core responsibility. 
- Humility and Respect - Be willing to learn, be vulnerable, and treat everyone who interacts with RYZ with respect.
- Frugality - being frugal and cost-conscious helps us do more with less
- Deliver Impact - get things done most efficiently. 
- Raise our Standards - always be looking to improve our processes, our team, and our expectations. The status quo is not good enough and never should be.

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