Senior Software Developer Transformation Engineering

BigRio is an equal-opportunity employer seeking a Senior Software Developer to join its Transformation Engineering Team and modernize critical healthcare and laboratory technology. The role focuses on building domain-based services, modernizing legacy applications, reducing system coupling, and delivering secure, independently deployable integrations while maintaining business continuity.

Responsibilities:

• Design and build domain-based services for critical healthcare and laboratory capabilities
• Modernize legacy applications and workflows while protecting business continuity
• Reduce tight coupling and direct dependence on shared databases
• Build independently deployable services with clear ownership and well-defined interfaces
• Analyze legacy code, database dependencies, data flows and hidden business rules
• Move hard-coded rules into governed, testable and reusable capabilities
• Establish clear ownership for data, services and business decisions
• Create secure APIs and event-driven integrations where appropriate
• Reduce duplicate data, manual reconciliation and unnecessary copies of sensitive information
• Plan and execute gradual migrations, parallel validation and controlled cutovers
• Implement role-based access, audit logging, monitoring, performance controls and secure coding practices
• Write automated tests and participate in design reviews, code reviews and production support
• Create technical documentation and mentor engineers in modern engineering practices
• Use AI-assisted tools for analysis, coding, testing and documentation while validating output and protecting sensitive data

Requirements:

• Bachelor's degree in Computer Science, Engineering or a related field, or equivalent experience
• 8 or more years of hands-on software development experience
• Strong experience with a modern server-side programming language, REST APIs and SQL
• Experience modernizing legacy applications or decomposing tightly connected systems
• Knowledge of distributed systems, asynchronous processing and integration architecture
• Experience with secure development, automated testing, continuous delivery and production support
• Ability to analyze complex workflows, data dependencies and unfamiliar codebases
• Strong collaboration with architects, analysts, QA and business stakeholders
• Experience in healthcare, diagnostics, genomics or laboratory operations
• Experience applying domain-driven design and the strangler modernization pattern
• Knowledge of API versioning, event or message patterns, retries, idempotency and recovery
• Experience moving from shared-database architectures to owned services and data domains
• Knowledge of authentication, role-based access, audit logging and observability
• Experience with containers, cloud platforms and performance engineering
• Experience modernizing regulated systems through gradual migration and controlled cutover