Senior Software Engineer

About This Role

Join BillionToOne's Oncology team as a Senior Software Engineer to design, develop, and scale personalized genomic medicine solutions, creating seamless digital experiences for clinicians and patients in prenatal and cancer diagnostics.

Responsibilities

• Collaborate with talented engineers to design and develop backend services, data processing pipelines, and interfaces, driving innovation and efficiency
• Build user-facing features to optimize performance and reliability, enhancing overall user experience
• Elevate BillionToOne Oncology’s backend systems, including the test order record database, third-party integrations, test scheduling and reports management software, and distributed systems architecture
• Demonstrate a creative and out-of-the-box mindset, offering innovative solutions and approaches to complex technical challenges
• Prioritize quality by writing comprehensive unit / integration / end-to-end tests and ensuring superior test coverage across all components and modules
• Write technical documentation and validation reports that assure correct functionality of medical informatics systems
• Demonstrate a strong sense of ownership and take responsibility for end-to-end project delivery
• Collaborate cross-functionally, actively seeking input from team members and fostering a positive and inclusive work environment

Requirements

• 5+ years of professional software development experience
• Expertise in Python backend frameworks (e.g., Django or Flask)
• Strong foundation in cloud services, preferably AWS, including ECS, S3, AWS Batch, EC2, and AWS Lambda
• Familiarity with modern AI-driven development practices and tools
• Excellent communication and collaboration skills
• Proven track record of building products and features from conception to deployment

Qualifications

• 5+ years of professional software development experience with a proven track record of delivering complex projects and adhering to best practices

Nice to Have

• Experience in healthcare-related software or a passion for improving healthcare systems
• Experience working at a fast-paced startup or high-growth company
• Familiarity with healthcare data standards, such as FHIR and HL7
• Experience with medical software and authoring technical verification / validation reports
• Experience leveraging AI-assisted coding and debugging tools
• Experience building AI agents, fine-tuning machine learning models, or deploying LLM-based applications

Skills

* Required skills

Benefits