> Markdown version of [/jobs/ext/3634566-backend-founding-engineer](https://www.wearedevelopers.com/jobs/ext/3634566-backend-founding-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). --- # Backend Founding Engineer - **Company:** Open Systems Inc. - **Location:** Jersey City, NJ, United States - **Salary:** $180,000.0 - $230,000.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Databases, PostgreSQL, Node.Js, Web Applications, Express.js, Backend - **Published:** October 8, 2026 - **Apply:** https://www.disabledperson.com/jobs/75901192-backend-founding-engineer ## About the Role Deep experience with and understanding of: * JavaScript (5+ years) * Node.js (5+ years) * Express.js framework (2+ years) * APIs (5+ years)/Building fintech backend APIs (1+ years) * Databases (PostGreSQL) (2+ years) * Architecture (2+ years) * Fintech web applications (1+ years) * Ability to see challenges as opportunities to level up, high-achieving and goal-oriented * A collaborative spirit and the ability to communicate effectively with stakeholders, highly collaborative and transparent in your work, output, and decision making * Passion for creative thinking and bold ideas for growing the business/enhancing customer experience * Expert time management and organizational skills ## Description * Independently communicate with Customer Support to investigate and resolve customer-reported issues * Design database schemas and APIs for small-to-medium scoped features * Implement features following internal engineering principles and guidelines * Provide estimates for their own work and communicate progress and risks proactively to the team