Role Description We're looking to hire a Senior React + Node Engineer (Financial background) to join our team. You'll work with our incredible clients in one of two ways: - Team Augmentation: You will integrate directly into our client's team and work alongside their existing designers and engineers daily. - Design & Build: You will work on a FullStack product team to build and deliver a product to our clients. Qualifications - 5+ years of professional software engineering experience. - Advanced English is required. - Successful completion of a four-year college degree is required. - Expertise in Node.js (specifically versions 18 through 22). - Proficient in React, including hooks, state management (Redux/Redux Saga), and component architecture. - Proven experience in designing and maintaining financial data reconciliation systems, with a focus on ledger accuracy, complex data aggregation, and the programmatic generation of audit-ready reports. - Track record of designing and maintaining microservices and distributed systems. - Extensive experience with PostgreSQL, including advanced SQL, schema design, and query optimization. - Well-versed in REST API development using modern frameworks like Koa.js or Express. - Deep experience in ORM tools such as Objection.js, Sequelize, or TypeORM. - Hands-on experience with AWS services (S3, SQS, RDS, EC2). - Solid background in containerization using Docker and Docker Compose. - Demonstrated experience with CI/CD pipelines (CircleCI, GitHub Actions) and GitOps practices. - Skilled at implementing authentication systems such as JWT, OAuth, or MSAL (Azure AD). - Strong history of testing discipline using Jest, Mocha, or Supertest. - Practical experience with APM tools like DataDog or New Relic and feature flag management (LaunchDarkly). - Solid understanding of financial or accounting systems (ledgers, reconciliation, etc.) is a plus. - Ability to work through new and difficult issues and contribute to libraries as needed. - Ability to create and maintain continuous integration and delivery of applications. - Forensic attention to detail. - A positive mindset and a can-do attitude. - Experience working on Agile/Scrum teams. - Meaningful experience working on large, complex systems (50k+ lines of code). - Ability to take extreme ownership over your work. - Ability to identify with the goals of FullStack's clients, and dedicate yourself to delivering on the commitments you and your team make to them. - Ability to consistently work 40 hours per week. Benefits - Competitive Salary. - Paid Time Off (vacation, sick leave, parental leave, and holidays). - 100% remote work. - The ability to work with leading startups and Fortune 500 companies. - Health, dental, and vision insurance. - 401(k) w/ 4% match. - Ample opportunity for career advancement. - Continuing education opportunities.

Role Description - Author and manage Pull Requests (PRs) to integrate new code into large, complex open-source codebases. - Evaluate and enhance AI model training through active contributions to open-source repositories. - Collaborate with AI research teams to improve training data quality and model outputs. - Work independently and asynchronously to meet deadlines and deliver impactful code. - Shape the future of open-source projects by providing structured feedback and innovative solutions. Qualifications - Strong ability to author and manage Pull Requests (PRs). - Demonstrated experience with significant GitHub contributions. - 3+ years as a Software Engineer (preferred). Requirements - Start Date: Immediately Benefits - Compensation: $150/hour - Location: Remote Application Process - Upload resume - AI interview based on your resume - Submit form Resources & Support - For details about the interview process and platform information, please check: Interview Process - For any help or support, reach out to: support@mercor.com - PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

• Install, upgrade, and maintain databases (servers and instances), indexes, and related processes, including backup and recovery • Conduct performance tuning of database systems • Develop automated mechanisms (stored procedures, function, and ad hoc scripts) for monitoring, maintenance and routine tasks • Perform vulnerability management and continuous optimization of database security • Diagnose and troubleshoot database errors • Analyze data to create and manage reports, visualizations, and dashboards • Understand complex data schemas and create enterprise data models • Develop and support data integration mechanisms with other systems • Develop and maintain database and system documentation

• Design, develop, test, debug, and maintain software applications and product enhancements • Analyze business and technical requirements, identifying gaps, ambiguities, and improvement opportunities • Build scalable and maintainable applications using established development standards and patterns • Develop and maintain backend database logic, queries, and data structures • Write clean, concise unit tests with appropriate code coverage • Participate in code reviews and contribute to design discussions • Troubleshoot production issues, isolate root causes, and implement fixes • Collaborate closely with product, QA, and cross-functional teams in an Agile environment • Prepare technical documentation to support development, maintenance, and troubleshooting activities