Developer Support Engineer

interop.io

full-time

Posted on: 9/20/2025

Origin: • 🇧🇬 Bulgaria

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Mid-LevelSenior

ElectronGraphQLJavaJavaScript.NETNode.jsPythonTypeScript

About the role

Analyze logs, debug code, and troubleshoot APIs to resolve complex client issues
Investigate stack traces, errors, and integration flows to identify root causes
Debug JavaScript/TypeScript in production-like scenarios and write scripts/tests to reproduce client environments
Communicate with customers via ticketing systems and email and participate in audio/video calls for deep troubleshooting
Collaborate closely with Product and Engineering to ensure smooth resolutions
Build diagnostic tools, scripts, and sample applications to streamline support
Contribute to knowledge base and internal runbooks with developer-grade solutions and examples
Act as a trusted technical advisor for both technical and non-technical stakeholders
Participate in on-call rotation (shared across the team / approx. 1 week per month)

Strong JavaScript / TypeScript literacy (read/debug production code; write small scripts/tests)
Proficient in log analysis (stack traces, errors, correlation across services)
API troubleshooting (REST/GraphQL; auth flows; headers; Postman/cURL)
Working knowledge of desktop/web fundamentals: Electron, iframes, browser contexts, CORS, storage
Practical understanding of environments/config management (dev/QA/stage/prod; feature flags; versioning)
Excellent written and verbal communication skills, with the ability to translate technical findings into client-friendly language
Desire to help customers and willingness to contribute to the team’s success
Fluent in English – verbally & written
Availability to perform on-call duties
Nice to have: QA/Automation or DevOps exposure (CI logs, releases, telemetry)
Nice to have: Scripting beyond JS (Python/Node CLI, .NET, Java) for quick internal tools
Nice to have: Experience with enterprise client support and secure data handling
Nice to have: Familiarity with Jira/JSM workflows and disciplined documentation