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Senior Back-End Developer (Java / .NET Core)

CoSourcing Partners
  • Houston, Texas
  • Autofill and Review
30+ days ago

Job Description

Job Title: Senior Back-End Developer (Java / .NET Core)Location: Houston, TX (Hybrid – 3+ days onsite)Employment Type: Full-time, Direct HireAbout the RoleWe are looking for a Senior Back-End Developer to join our internal Innovation & Software Development team in Houston. This role will lead the transition from low-code applications (PowerApps) to robust, custom-built solutions that streamline operations, improve efficiency, and support our growing healthcare/diagnostics environment.You will work closely with our Director of Innovation, data architecture team, and front-end developer to design and build backend services, APIs, and data-centric applications that support critical workflows—such as licensing, compliance, digital pathology, and internal automation.This is a hands-on, senior technical role with strong expectations for mentoring, collaboration, and impact in the first 90 days.What You’ll Do (Key Responsibilities)Platform & Application Development
  • Design, develop, and maintain back-end services and REST APIs using Java and .NET Core, supporting internal web and data applications.
  • Help lead the transition from Microsoft PowerApps and other low-code tools to custom, scalable applications backed by SQL Server and modern cloud services.
  • Build reliable integrations between applications, databases, and analytics platforms (including SQL Server and Databricks).
Architecture & Modernization
  • Collaborate with the Director of Data Architecture and data engineering team to define back-end architecture, data models, and service boundaries.
  • Refine and evolve a primarily monolithic application landscape into a more modular, maintainable platform over time (no microservices today, but a modernization path ahead).
  • Implement best practices for API design, error handling, logging, and security in a regulated, healthcare-oriented environment.
Collaboration & Mentorship
  • Partner closely with a junior front-end developer to ensure clean, well-documented backend interfaces that support high-quality user experiences.
  • Provide technical mentorship across the Innovation team, sharing patterns, code reviews, and guidance on design and implementation.
  • Actively participate in design sessions, backlog grooming, and sprint planning, contributing both technical input and business context.
Operational Excellence
  • Work with our managed IT partner (ECS) and internal teams to ensure solutions are secure, performant, and reliable within our infrastructure and cloud environment.
  • Help establish and refine CI/CD pipelines using GitHub/GitLab and containerization tools (e.g., Docker) for consistent deployments.
  • Contribute to technical documentation, system diagrams, and support hand-offs for production readiness.
What Success Looks Like (First 6–12 Months)
  • Within 90 days, you have a deep understanding of our existing PowerApps and custom applications, and are contributing production-ready code to at least one high-impact system.
  • Within 6 months, you have successfully led or significantly contributed to at least one migration from a low-code solution to a custom backend/API-backed application.
  • Within 12 months, you are recognized as a go-to technical leader for backend decisions, mentoring the front-end developer and improving the overall quality, performance, and reliability of our applications.
Required Qualifications
  • 8+ years of professional experience as a Back-End Developer / Software Engineer, with significant senior-level responsibilities.
  • Strong hands-on expertise in Java and .NET Core for backend development.
  • Proven experience designing and implementing RESTful APIs for internal or external applications.
  • Solid experience with Microsoft SQL Server (schema design, stored procedures, performance tuning, query optimization).
  • Experience working in a cloud environment, ideally Azure (App Services, hosting, identity, basic networking).
  • Familiarity with modern development practices:
  • Git-based version control (GitHub, GitLab, or similar)
  • CI/CD pipelines
  • Docker or other containerization tools
  • Strong communication and collaboration skills, with experience working cross-functionally with product, data, and IT teams.
  • Ability and willingness to work onsite in Houston at least 3 days per week.
Preferred Qualifications
  • Experience in healthcare, life sciences, diagnostics, or other highly regulated industries (HIPAA, SOX, or similar).
  • Exposure to Databricks or other modern data/analytics platforms.
  • Experience working alongside or integrating with low-code platforms (e.g., PowerApps) and helping teams migrate away from them.
  • Prior experience mentoring junior engineers or acting as a technical lead on projects.
  • Familiarity with container orchestration and infrastructure-as-code (Kubernetes, Terraform, etc.), even if not used in the current environment
About the Team & Environment
  • The Innovation team is a focused group (data architect, data engineer, analyst, PM, front-end dev, automation engineer) dedicated to building internal tools that eliminate manual work and improve efficiency.
  • We are evolving from low-code, tactical solutions to more strategic, custom-built applications, and this role is central to that transformation.
Hiring Process & PartnershipThis search is being conducted in partnership with CoSourcing Partners, using a performance-based recruiting model. Their POLARIS-AI platform and automation-enhanced sourcing process are designed to:
  • Reduce time-to-hire by up to 76%
  • Improve recruiter productivity by 146% weekly
  • Present a shortlist of highly qualified, senior-level candidates aligned to this role’s technical and cultural requirements
Qualified candidates can expect a streamlined process, including:
  • Initial screening with CoSourcing Partners
  • Technical and behavioral interview(s) with the Innovation team
  • Final interview and offer discussion with leadership

Numbers & Facts

LocationHouston, Texas

Skills

  • Alliance/Partner Managementunmatched
  • Application Hostingunmatched
  • Application Integrationunmatched
  • Application Programming Interface (API)unmatched
  • Artificial Intelligence (AI)unmatched
  • Automationunmatched
  • Automation Engineeringunmatched
  • Behavioral Interviewingunmatched
  • Best Practicesunmatched
  • Biologyunmatched
  • Cloud Computingunmatched
  • Code Reviewsunmatched
  • Communication Skillsunmatched
  • Continuous Deployment/Deliveryunmatched
  • Continuous Integrationunmatched
  • Cosourcingunmatched
  • Cross-Functionalunmatched
  • Data Analysisunmatched
  • Data Modelingunmatched
  • DataArchitect Data Modeling Toolunmatched
  • Database Analysisunmatched
  • Database Designunmatched
  • Dockerunmatched
  • Error Handlingunmatched
  • Gitunmatched
  • GitHubunmatched
  • HIPAA (Health Insurance Portability and Accountability Act)unmatched
  • Healthcareunmatched
  • Internet Applicationunmatched
  • Javaunmatched
  • Leadershipunmatched
  • Licensing Complianceunmatched
  • Management of Information Systems/Technology (MIS)unmatched
  • Mentoringunmatched
  • Microservicesunmatched
  • Microsoft .NETunmatched
  • Microsoft Product Familyunmatched
  • Microsoft SQL Serverunmatched
  • Microsoft Windows Azureunmatched
  • Operational Improvementunmatched
  • Operational Strategyunmatched
  • Pathologyunmatched
  • Performance Tuning/Optimizationunmatched
  • Productivity Managementunmatched
  • Quality Managementunmatched
  • Query Optimizationunmatched
  • REST (Representational State Transfer)unmatched
  • Sarbanes-Oxley Act (SOX)unmatched
  • Software Developmentunmatched
  • Software Engineeringunmatched
  • Source Code/Configuration Management (SCM)unmatched
  • Sprint Planningunmatched
  • Stored Proceduresunmatched
  • Team Playerunmatched
  • Technical Leadershipunmatched
  • Technical Writingunmatched
  • Time Managementunmatched
  • User Interface Designunmatched
  • User Interface/Experience (UI/UX)unmatched

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