Full-Stack Software Benchmark Task Author

IXO is engaging specialists to evaluate full-stack engineering tasks that work across frontend, backend and data layers. Your contribution is technical work: make the reasoning inspectable, identify substantive errors and provide evidence that supports a reliable assessment.

Work you will do

• Develop or review application code and integrations with attention to the complete user-to-database workflow.
• Identify correctness, security, scalability and maintainability issues in realistic implementations.
• Provide clear technical explanations and verification evidence for the task outcome.

Required background and routes

• Substantive professional full-stack delivery across frontend and backend, including production use of multiple languages.
• Understand browser applications, state, APIs, databases, integrations and whole-system architecture; navigate unfamiliar repositories and debug complex failures.

Deliverables

Submit the completed technical artifact or assessment with its supporting evidence, explicit assumptions, reproducible checks where applicable, and concise reasons for each material judgment. Address review findings within the agreed scope.

Location and schedule

Remote assignments are scheduled by agreement, with no guaranteed weekly volume. Availability planning can include 15 hours per week depending on the track. IXO confirms the applicable timing before work.

Pay and working terms

Per completed task; fee agreed before work USD. Payment is for a completed task that meets the agreed acceptance criteria. The fee, task specification and revision requirements are agreed before work; an advertised time estimate does not determine payment. Applying does not guarantee an assignment. Use public, licensed or otherwise authorized material only; do not submit confidential employer information, personal data or restricted research.