Internal Tools Developer

Summary

Join MarketerHire's Product and Engineering Team as a highly technical Internal Tools Developer to own and expand our internal infrastructure. You will work remotely (EST or Europe preferred) with various teams to build and maintain critical systems, including custom Retool apps, Slack integrations, and automation workflows. This role involves maintaining and enhancing Retool apps, developing Slack integrations, managing access controls, collaborating with cross-functional teams, working within a Git-based workflow, and participating in architecture discussions. The ideal candidate possesses expert-level proficiency in JavaScript/TypeScript and SQL, experience with Retool, familiarity with Git workflows and CI/CD principles, and a strong understanding of information security fundamentals. A Bachelor's degree in Computer Science, Engineering, or equivalent experience is required. The salary range is $60,000 - $100,000 a year.

Requirements

• Expert-level proficiency in JavaScript/TypeScript and SQL—able to write complex queries, optimize performance, and troubleshoot edge-case failures
• Hands-on experience with Retool (or similar internal-tools platforms), including custom component development and API integrations
• Familiarity with Git workflows (feature branching, pull requests, code reviews) and CI/CD principles
• Demonstrated knowledge of information-security fundamentals: managing API keys, enforcing the principle of least privilege, and securing data at rest and in transit
• Track record of maintaining service-level commitments, communicating effectively with non-technical stakeholders, and translating business requirements into technical solutions
• Proven experience building and maintaining Slack bots or integrations via the Slack API
• Bachelor’s degree in Computer Science, Engineering, or equivalent hands-on experience; prior roles such as Support Engineer, Technical IT Admin, Customer Service Engineer, or Internal Tools Developer preferred
• Full-time, 40 hours per week, remote

Responsibilities

• Maintain and enhance our Retool apps and workflow ecosystem by writing JavaScript/TypeScript and SQL to implement new features, optimize existing modules, and refine UI/ UX
• Develop and troubleshoot Slack integrations using JavaScript and Slack’s API to automate messages, alerts, and workflows
• Assist with the management of access controls and permission management across HubSpot, Retool, GSuite, Segment, and our proprietary systems—ensuring security best practices (principle of least privilege, API authentication, encrypted data handling)
• Collaborate with cross-functional teams to uphold internal service SLAs, prioritize incoming requests, and communicate status updates clearly
• Work within a Git-based workflow: author pull requests, review code, and enforce best practices for version control and deployment
• Participate in architecture discussions, recommend technology improvements, and proactively refactor code to reduce technical debt

Preferred Qualifications

Preferred overlap with EST or European business hours to support U.S. and EMEA teams

Benefits

$60,000 - $100,000 a year