Systems Engineer (Infrastructure)

MARICI Solutions GmbH; San Francisco (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

MARICI Solutions GmbH is seeking a Senior Systems/Infrastructure Engineer for its San Francisco onsite at full time. You will own sandbox orchestration and core infrastructure as the product transitions to a managed cloud offering.

You will apply deep expertise in Linux, Rust/Go/C++, Docker internals, and container runtimes to deliver low-latency, secure multi-tenant environments and collaborate closely with the CTO and customers.

Qualifications

• 4–8 years of systems engineering experience with ownership of production multi-tenant compute infrastructure.
• Deep mastery of systems languages (Rust, Go or C/C++).
• Hands-on knowledge of Firecracker, gVisor, Docker internals, and Kubernetes architecture.
• Active GitHub with container/infra commits is highly valued; prior stays of 3+ years preferred.

Responsibilities

• Sandbox orchestration: build and scale secure, multi-tenant sandbox environments for enterprise clients.
• Core systems infrastructure: architect and own compute, container, and distributed storage foundations for the move to a managed cloud offering.
• Under-the-hood container internals: leverage kernel, Docker, Kubernetes, Firecracker, and gVisor for low-latency sandbox startup and isolation.
• CTO & product partnership: collaborate with CTO and customers to align infra with user experience and efficiency goals.
• End-to-end operational ownership: lead projects from design to production with observability, runbooks, tuning, and on-call responsibility.

Skills

Rust

Go

C/C++

Docker internals

Kubernetes

Firecracker

gVisor

Linux kernel

Tools

Linux

Job description

Full Time

Primary Technical & Infrastructure Responsibilities

• Sandbox Orchestration: Build and scale secure, multi-tenant sandbox execution environments that allow AI agents to safely execute code, process files, and perform persistent operations for enterprise clients.
• Core Systems Infrastructure: Architect and own foundational compute, container, and distributed storage building blocks as the platform transitions from an open-source, on-prem V2 platform to a managed cloud offering.
• Under-the-Hood Container Internals: Leverage deep, low-level knowledge of Linux kernel primitives, Docker internals, Kubernetes, Firecracker microVMs, and gVisor isolation mechanisms to drive ultra-low latency sandbox startup and rock-solid multi-tenant isolation.
• CTO & Product Partnership: Work directly with the CTO, core engineering team, and enterprise customers to align infrastructure choices with user experience (e.g., sandbox execution speed, system reliability, resource efficiency, and compute cost).
• End-to-End Operational Ownership: Lead infrastructure projects from architectural design through production deployment, maintaining full ownership of observability, runbooks, performance tuning, and on-call rotation.

Candidate Qualifications & Recruiter Hiring Signals

• 4 8 Years Systems Engineering Experience: Proven track record as a Systems, Infrastructure, or Platform Engineer owning production multi-tenant compute infrastructure end-to-end.
• Deep Systems Languages Mastery: Strong proficiency in Rust, Go, or C/C++ is mandatory (resumes heavy on Java or enterprise APIs are non-starters; no front-end work expected).
• MicroVM & Container Expertise: Hands-on internal knowledge of Firecracker, gVisor, Docker internals, and Kubernetes architecture not just surface-level tool usage.
• Hiring Manager Preferences: Strong preference for candidates with stays of 3+ years at prior companies (frequent job changes under 1.5 years raise questions); active GitHub with container/infra commits is highly valued.

San Francisco, CA (Onsite)