> Markdown version of [/jobs/ext/3747581-senior-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/3747581-senior-full-stack-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 Full Stack Engineer - **Company:** Resourcesoft, Inc. - **Location:** Costa Mesa, CA, United States - **Experience:** Expert - **Contract:** Contract - **Skills:** JavaScript (Programming Language), User Authentication, Data Integrity, Extract Transform Load (ETL), Data Security, Data Synchronization, Relational Databases, Document Object Model, PostgreSQL, Node.Js, Query Optimization, Standard Sql, Web Applications, Backend, Restful APIs, Pagination - **Published:** October 15, 2026 - **Apply:** https://www.dice.com/job-detail/5a3fc9fb-b2a8-419a-a841-1f5f4c46abe8 ## About the Role * 5+ years of experience developing end-to-end web applications using JavaScript, Node.js, and SQL * Proficiency in PostgreSQL including schema design, query tuning, migrations, and execution plan analysis * Experience in Node.js backend engineering within lightweight or framework-free architectures * Experience with browser-based JavaScript development using direct DOM manipulation * Experience with REST API integrations including authentication, pagination, rate-limit management, and data synchronization * Strong communication skills with the ability to independently own and support critical applications ## Description * Design, build, and support scalable full-stack web solutions across front-end and back-end components * Develop and enhance backend services using Node.js to process and expose business data * Create and optimize relational database structures, queries, and data access patterns * Integrate external platforms and services through RESTful APIs while ensuring data integrity * Build and maintain data ingestion and ETL workflows for consolidating third-party information * Deliver reliable, audit-ready outputs while serving as the primary engineer for assigned systems