Software Engineer, Backend

Krea.ai, Inc

$135K — $160K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 4-8 years of experience with a focus on real production systems end-to-end.
  • Demonstrated ability to design, monitor, and manage production deployments.
  • Comfortable working across the tech stack, including unfamiliar codebases.
  • Strong communication skills for clear documentation and collaboration.

Responsibilities

  • Manage and maintain the backend systems from design to production.
  • Develop durable execution features for long-running workflows.
  • Enhance the public API with clean design and well-documented features.
  • Implement enterprise-level features like ACLs and audit logs.
  • Own system monitoring, metrics, and incident handling.

Benefits

  • 100% health and 99% dental/vision insurance premiums covered for employees.
  • Flexible PTO policy for better work-life balance.
  • 401k plan with a 4% company-sponsored match.
  • All meals provided in the office—breakfast, lunch, and dinner.
  • Uber transportation covered for commutes to and from the office.
Full Job Description
What you'll do

You'll work across the whole backend: the SvelteKit app and its Postgres, Redis, and ClickHouse data layer, the Python services that run our ML inference, and the Kubernetes clusters that tie it together across multiple cloud and GPU providers. You'll own these systems end-to-end, from design through to running them in production.

A sample of what we're working on right now:
  • Durable execution for long-running workflows. Building the state machines, idempotency, and retry semantics that keep multi-step inference jobs correct when they take minutes to finish and anything can fail mid-flight.
  • Improving our public API. Designing a clean, well-documented API surface with OpenAPI docs auto-generated from our Zod schemas.
  • Enterprise product features. ACLs, audit logs, entitlements, and all the "boring" features that organizations with a thousand users expect.


What we're looking for

We care more about first-principles engineering than which languages or tools you happen to know.
  • You've owned real production systems end-to-end: design, monitoring, metrics, incidents. Ideally you have 4-8 years of experience, but we care about scope and judgment over the number on your resume.
  • You're comfortable across the stack and unfazed by unfamiliar code, and you have opinions about how to architect things that scale.
  • You write and talk clearly, and you're happy working without a lot of PM hand-holding.

Bonus if you: have GPU or infra experience, have run Kubernetes in production, or come from a creative background. A lot of us do, and it helps when you're building tools for creatives (but it's genuinely not a requirement).

Our stack
  • SvelteKit, TypeScript, Python, Postgres (AWS Aurora), Redis, ClickHouse, Docker, Kubernetes, FluxCD.


Benefits & Perks

As part of our total rewards package, we offer attractive benefits and perks to our employees, including:
  • Competitive compensation: generous salary & equity packages
  • Health & wellness: 100% health & 99% dental/vision insurance premiums covered for employees, health FSA accounts, & long-term disability coverage
  • Time off: Flexible PTO policy
  • Financial planning: 401k with a 4% company-sponsored match
  • Meals in the office: breakfast, lunch, dinner - you name it, we'll cover it
  • Transit: Ubers covered to & from the office
  • And more!

Please note the above benefits & perks are for full-time employees

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