> Markdown version of [/jobs/ext/4704448-senior-node-js-backend-engineer](https://www.wearedevelopers.com/jobs/ext/4704448-senior-node-js-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Node.js Backend Engineer - **Company:** Ethereum Technologies LLC - **Location:** Menlo Park, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), User Authentication, DevOps, PostgreSQL, MongoDB, MySQL, Node.Js, Redis, Backend, Ethereum, Front End Software Development, Microservices - **Published:** November 13, 2026 - **Apply:** https://www.nettemps.com/us/en/W2754443DB8CB03AB66.ntap ## About the Role A strong emphasis on testing and performance is required. You will collaborate with DevOps to support CI/CD pipelines and cloud deployments, and you will stay Location Menlo Park, CA, United States of America ## Description Ethereum Technologies in Menlo Park, CA is seeking a senior Node.js developer to design, build, test and maintain scalable Back End services, APIs, and microservices. You will work with frontend, product, and design teams to deliver reliable software and secure authentication, with experience in PostgreSQL, MySQL, MongoDB, and Redis.