Description
We are staffing a frontier AI data initiative that requires strong software engineers to build the infrastructure and training data used to develop and evaluate AI agents. **Key Responsibilities:*** The Engineer will, depending on assigned track: build Python backend applications that replicate existing SaaS tools (such as Slack, Linear, Jira, Notion, Gmail, and wikis), including implementing integrations and standing up full\-service backend functionality.
* Perform thorough backend testing and integration validation to ensure each connector behaves faithfully like the system it emulates.
* Adapt and extend previously built connectors as needed, and test existing connectors internally before they are treated as complete; Build new connectors from scratch where required, within agreed delivery timeframes.
* Conduct data mining and task mining to identify representative workflows suitable for long\-horizon task development; Author realistic tasks derived from mined data and workflows.
* Verify task and data quality, realism, and correctness through structured QA; Write clear evaluation rubrics that define correct, partially correct, and deficient work.
* Use AI coding agents proficiently throughout all development, QA, and validation work; collaborate across the connectors and tasks tracks.
* Participate in onboarding, calibration, and quality\-review cycles; deliver assigned work to the expected quality bar and on agreed milestones.
**Must Have Required Skills:*** Minimum 3\+ years of overall experience.
* **Strong proficiency in Python (**FastAPI, Flask, or Django**)**with proven experience in backend software development.
* **Proficiency with Git, Docker**, and basic software pipeline setup.
* Experience building scalable backend applications, REST APIs, and microservices.
* Proficiency in using AI coding assistants (e.g., Codex, Claude Code, Cursor, GitHub Copilot, or similar) as part of daily development workflows.
* Strong understanding of software engineering best practices, including version control, testing, and code quality.
* Strong analytical and problem\-solving skills with attention to detail.
* Ability to work independently while collaborating effectively within distributed engineering teams.
* Excellent written and verbal communication skills.
**Nice to have:*** Experience building connectors or integrations for SaaS platforms.
* Knowledge of evaluation frameworks, QA methodologies, and rubric creation for AI datasets.
* Experience developing realistic workflows for long\-horizon AI tasks.
**Offer details*** **Commitments required:** Must complete and get approved minimum of 1 task per day .
* **Payment:** $300/Task
* **Engagement type:** Contractor \- Pay per Task
* **Duration of contract:** 2\-3 weeks and start date ASAP