Staff Backend Engineer

About the role

ABOUT THE ROLE

We’re looking for a top‑tier Staff Backend Engineer to join our tech team.

You’ll wear many hats. Your core responsibilities will be to:

- Design internet‑scale, high‑performance infrastructure

- Build robust products- develop, deploy, and maintain new features end‑to‑end

- Master the technical scope of your domain and raise the bar for engineering quality

- Collaborate on road‑mapping and drive key technical decisions

- Own large cross‑functional initiatives from conception to delivery

- Work autonomously alongside the CTO and the rest of the Software & ML teams

- Conduct code reviews and foster knowledge‑sharing across the team

REQUIREMENTS

You’re a great match if you:

- Are excited to help build Google for AI agents- and believe in Linkup’s mission https://www.notion.so/Join-Linkup-9a304f74df4544bf83d9b23c3b31b699?pvs=21

- Have extensive backend experience building and operating large‑scale distributed systems (6y minimum)

- Enjoy optimizing systems—shaving off milliseconds and making GPUs “go brrr”

- Bring experience with, or strong curiosity about, AI technologies and a commitment to continuous learning

- Possess a solid grasp of infrastructure and CI/CD best practices

- Thrive in a fast‑paced environment and aren’t afraid to work hard to achieve ambitious goals

EXAMPLE PROJECTS

- Index hundred of millions of web pages every day, with < 5 min freshnesss

- Stream 1 B embeddings / day for while minimizing compute costs

- Auto‑retrain ranking on agent clicks every 24 h

OUR STACK

- TypeScript / Node.js, Python, Rust, PostgreSQL, Redis, NATS, gRPC, Vespa, Kubernetes, GitHub Actions, Terraform

DETAILS

The ideal candidate will play a central role in our engineering team, partnering closely with the founders to spearhead groundbreaking products. Your backend expertise will shape the future of AI‑powered applications and bring our vision to life.

We offer a flexible remote‑work policy- see the details here https://www.notion.so/Linkup-Remote-Work-Policy-d593322ac4c84988b1c7c327d6c4d39e?pvs=21.

Join us and leverage your expertise to push the boundaries of AI!

ABOUT LINKUP

OUR VISION

We believe in a future of AI agents and the agentic web. These digital entities can create more value for humanity than we ever could alone, but they depend on the internet to operate, collaborate, take action, and gather information.

AI agents need web search. To perform well, they require information that is current, reliable, and context‑specific—not the diffuse, steadily aging knowledge frozen at their last training cut‑off.

Modern web search is built for humans, not AIs. Instead of trusted facts, it serves links, ads, and click‑bait. People want visually engaging pages; AI systems need structured truth. An AI can absorb oceans of data, while human attention barely skims the surface. Humans think visually and intuitively; AI reasons in latent space.