Senior Site Reliability Engineer

CloudFactory; Berlin; Vor Ort; EUR 90.000 - 130.000; Vollzeit

Zusammenfassung

CloudFactory in Berlin is hiring a Site Reliability Engineer to maintain production systems and drive reliability, security, and automation across our ML/LLM platform.

You will own end-to-end infrastructure, work with Kubernetes, cloud providers (AWS), and tooling like Helm, Terraform, and CloudFormation, while collaborating with product and engineering teams.

This role offers growth in a mission-driven, globally connected environment that values experimentation and responsible innovation.

Qualifikationen

• 5+ years in infrastructure/DevOps/SRE with large-scale production systems.
• Production experience on live Kubernetes clusters; AWS preferred.
• Proficient in Python or Go for automation.
• Knowledge of AI tooling integration in operations.
• Ability to reason from first principles about reliability vs. cost.
• End-to-end ownership of at least one infra project.
• Strong cross-functional collaboration across product, backend and frontend teams.

Aufgaben

• Ensure reliability of platform including ML/LLM workloads with SLOs and on-call coverage.
• Observability and monitoring for ML models and LLM components.
• Shape technical direction and golden paths for teams.
• Develop reusable tooling and automation to speed shipping.
• Package common open-source components for multi-environment deployment.
• Secure-by-default infrastructure with audits and cost governance.
• Collaborate across global teams to drive platform improvements.

Kenntnisse

SRE experience

Kubernetes

Terraform

CloudFormation

AWS

Helm

Python

Go

Automation scripting

AI tooling

First-principles thinking

End-to-end ownership

Cross-functional collaboration

24x7 availability

Tools

KServe

RayServe

Triton

vLLM

Kubeflow

MLflow

Feast

Weights & Biases

Jobbeschreibung

At CloudFactory, we are a mission-driven team passionate about unlocking the potential of AI to transform the world. By combining advanced technology with a global network of talented people, we make unusable data usable, driving real-world impact at scale.

More than just a workplace, we’re a global community founded on strong relationships and the belief that meaningful work transforms lives. Our commitment to earning, learning, and serving fuels everything we do as we strive to connect one million people to meaningful work and build leaders worth following.

Our Culture

At CloudFactory, we believe in building a workplace where everyone feels empowered, valued, and inspired to bring their authentic selves to work. We are:

• Mission-Driven: We focus on creating economic and social impact.
• People-Centric: We care deeply about our team’s growth, well-being, and sense of belonging.
• Innovative: We embrace change and find better ways to do things together.
• Globally Connected: We foster collaboration between diverse cultures and perspectives.

If you’re passionate about innovation, collaboration, and making a real impact, we’d love to have you on board!

Role Summary

As a Site Reliability Engineer, you will play a key role in keeping all production systems running smoothly. You will work closely with other engineers and operators to fuse engineering principles, operational knowledge, security, and automation to work towards platform/service production excellence from an angle of infrastructure, reliability, and security.

The SRE team owns the foundation of AI Platform’s Core platform - the services and infrastructure that let us deploy to a multitude of public cloud providers and that powers many ML and LLM powered features. We give every other engineering team a reliable base to build on, and we own the software delivery lifecycle end to end: the tooling, patterns, and automation that reduce friction for the whole org.

This is an exciting opportunity to grow professionally while contributing to a mission-driven organization.

Responsibilities:

What you’ll own

• Reliability of platform(includes ML and LLM workloads) - model serving and inference infrastructure (GPU-backed endpoints, autoscaling, latency and cost tradeoffs), with SLOs, on-call, and incident response that cover models, not just services
• Observability(includes ML models) - drift and performance monitoring for ML, plus LLM-specific tracing, evals, and guardrails, wired into the same metrics and logging stacks we run everywhere else
• Company-wide technical direction: shaping the roadmap and building golden paths that raise the baseline for every team
• Developer tooling and automation that compounds - reusable GitHub Actions, GitOps workflows, Terraform modules - so every engineer ships faster
• Reusable components packaging common open-source tools (Grafana, Istio, CloudNative stack, and ML tooling such as model registries and feature stores) for teams to deploy in any environment
• Secure-by-default infrastructure - baking security, compliance audits, cost governance, and audit trails into the platform in close partnership with our lead/backend/staff engineers.

Who you are (must-haves)

• 5+ years in infrastructure engineering, DevOps, or SRE, operating large-scale, high-availability production systems using Kubernetes
• Production Operational experience - a live cluster under real load, not a lab. Fluent with Helm, and Terraform or Cloudformation, on at least one major cloud (AWS preferred).
• Good proficiency in Python or Go or general scripting for automation and tooling(automation with higher language preferred)
• AI is already in your daily loop - Agentic tooling (Claude Code, Codex, Droid, internal skills) is part of how you ship and not what you are experimenting with. We believe AI tools can be great with human judgement and we want the SRE team to bring the next wave day to day operations.
• First-principles reasoning - Reasoning from constraints and failure modes naming the tradeoff in business terms (reliability vs. velocity, cost vs. blast radius, standardisation vs. one-off)
• At least one infrastructure build you owned end to end - with the outcome metric attached (deploy time, MTTR, cost, adoption, availability).
• Cross-functional strength. Track record working with product, backend/frontend teams to pull through collective initiative.

ML & AI platform (strongly preferred)

• Running ML workloads on Kubernetes - GPU scheduling, capacity, and cost management
• Model serving and inference at production scale (eg KServe, RayServe, Triton, vLLM, or similar) with real latency and cost constraints(preferred RayServe)
• MLOps pipeline tooling - training pipelines, model registries, feature stores, and lineage (Kubeflow, MLflow, Feast, Weights & Biases, or equivalents)
• LLMOps in production - inference serving, prompt/version management, and LLM observability (tracing, evals, drift, guardrails, cost per request)
• Governing ML/LLM workloads as platform capabilities: data-residency and PII controls, and audit trails

Any other General requirements

• Global Collaboration: Ability to work across global teams and different cultures across various time zones with strong communication skills.
• Problem Solving: Ability to break down complex problems into simple, actionable solutions.
• Ownership & Drive: Tendency to go above and beyond to meet deadlines, manage own deliverables, and assist team members.
• Availability: Willingness to support processes for 24x7 operational support.

At CloudFactory, we believe that work should be more than just a job—it should be a platform for growth, impact, and community. Here, you’ll earn with purpose, learn every day, and serve a mission that truly matters. If you’re looking for a career where you can develop professionally, contribute meaningfully, and be part of a global movement, we’d love to have you on this journey!