Senior Backend Developer, CoLab Software

• Experience working on SaaS, large-scale distributed systems and a consistent track record of building and maintaining highly scalable products would be considered an asset
• 5+ years of professional, hands-on development experience
• Proficient in Python and its libraries, with hands-on experience in designing, developing, and maintaining robust and scalable APIs
• Hands-on experience with relational databases (e.g., PostgreSQL, MySQL), NoSQL databases (e.g.: DynamoDB), vector databases (e.g., OpenSearch) and querying frameworks/APIs (e.g.: SQLAlchemy)
• Experience writing robust automated tests, including unit, as well as end-to-end (E2E) tests using Cypress or Playwright
• Experience with Git workflow (pull requests, code reviews)
• Experience working with Monitoring / Observability tool (e.g, DataDog, Retool)
• AI/ML Experience:
• Libraries: PyTorch, Hugging Face, Scikit-Learn
• Agent workflows: pydantic-ai
• Experience integrating and prompting large language models (LLMs) via APIs (e.g., OpenAI, Anthropic, Google Gemini)
• Experience working with ML services in the cloud infrastructure, e.g. Sagemaker, Bedrock, etc
• Passion for working in teams with emphasis on respect and continuous improvement
• Willingness to raise your hand when you see something could be done / built better

Desirable

• As a Senior Back End Developer (Software Developer IV) on our Build Scale Team, you are a technology advocate and a mentor within your team
• You have an in-depth knowledge of the CoLab technology stack and how different components and services interact across the platform
• You push for best practices and technical standards, and help guide the team technology direction towards simple, maintainable solutions
• Understand complex customer problems and requirements and work in a team to build a solution that adds value for the customer and the product as a whole
• Collaborate with other team members to design and plan complex scopes of work from product requirements and UI/UX designs
• Develop, test, and ship critical user-facing features on a regular basis
• Develop, test, and maintain robust and scalable APIs
• Participate in code reviews and help your team deliver high-quality software
• Advocate for all aspects of the user’s experience, with a focus on clarity and speed
• Contribute to tech technology direction and best practices
• Mentor, support, and be an information source to junior developers
• Success will be measured by:
• On time delivery of new product features and changes
• Promotes clean and maintainable code and software development best practices
• Clear communication and technical leadership within team
• Self directed, takes ownership of tasks, stays apprised of broader team’s work
• Mentoring and advising others on the team