Senior Python Developer

CVAT.ai; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

Flexible remote work from anywhere

Career development and community‑engA​

Job summary

CVAT.ai is seeking a Senior Python SDK Engineer to own the Python SDK and APIs for a leading open-source computer vision annotation tool. You will engage with a global developer community, shape SDK and API design, and drive improvements across backend, ML, and data infra.

This remote, full-time role offers flexible location (including Cyprus) and opportunities to work with a thriving open-source ecosystem while delivering robust developer-facing interfaces for real-world workflows.

Qualifications

• Senior-level proficiency in Python, with experience designing and shipping SDKs or developer-facing APIs.
• Strong software engineering fundamentals, including testing, documentation, and long-term maintainability.
• Ability to communicate directly with users and community members and turn feedback into product decisions.
• Comfort working independently, taking ownership, and driving initiatives from problem definition through delivery.
• Understanding of data-intensive workflows and the challenges of working with large datasets.

Responsibilities

• Own and evolve the Python SDK, making it intuitive, reliable, and effective for real-world annotation and machine learning workflows.
• Design and develop high-level SDK abstractions that make complex operations simple and approachable.
• Work directly with customers and community members to understand how the product is used and translate that into SDK and API improvements.
• Identify problems, propose solutions, and drive technical and product decisions end to end with minimal supervision.
• Collaborate across backend, machine learning, and data infrastructure areas to deliver cohesive improvements.
• Use AI-assisted development tools in day-to-day engineering work while maintaining quality and reliability.
• Address challenges of working with large, data-intensive workloads typical in computer vision pipelines.

Skills

Python

SDK design

API design

Testing

Job description

Role overview

This role owns the Python SDK and APIs of a widely used open-source computer vision annotation tool, shaping how a large and active user community integrates with the product. The work blends SDK design, backend engineering, and direct engagement with customers and community contributors to turn real-world workflows into better developer-facing interfaces. It calls for a high degree of ownership, from problem identification through technical and product decisions.

Responsibilities

• Own and evolve the Python SDK, making it intuitive, reliable, and effective for real-world annotation and machine learning workflows.
• Design and develop high-level SDK abstractions that make complex operations simple and approachable.
• Work directly with customers and community members to understand how the product is used and translate that into SDK and API improvements.
• Identify problems, propose solutions, and drive technical and product decisions end to end with minimal supervision.
• Collaborate across backend, machine learning, and data infrastructure areas to deliver cohesive improvements.
• Use AI-assisted development tools in day-to-day engineering work while maintaining quality and reliability.
• Address challenges of working with large, data-intensive workloads typical in computer vision pipelines.

Requirements

• Senior-level proficiency in Python, with experience designing and shipping SDKs or developer-facing APIs.
• Strong software engineering fundamentals, including testing, documentation, and long-term maintainability.
• Ability to communicate directly with users and community members and turn feedback into product decisions.
• Comfort working independently, taking ownership, and driving initiatives from problem definition through delivery.
• Understanding of data-intensive workflows and the challenges of working with large datasets.

Nice to have

• Background in computer vision, annotation tooling, or machine learning infrastructure.
• Hands-on experience with AI-assisted development tools in production engineering work.
• Exposure to open-source development practices and community engagement.

Benefits and work setup

• Full-time employment with flexible remote work from any location, or based in Cyprus.
• Work-life balance supported by generous vacation and sick leave policies.
• Medical insurance and benefits included.
• Opportunities for career development and engagement with a global developer community on open-source projects.