Principal Software Engineer, .NET / Data / AI
About the Role
We are seeking a highly experienced and versatile Principal Engineer with expertise in full-stack development, data engineering, and large language model (LLM) systems. This role is ideal for a technical leader who thrives in cross-functional environments, enjoys solving complex problems, and is passionate about building scalable, intelligent, and impactful software solutions.
You will lead the design and development of modern web applications, data pipelines, and AI-powered systems, collaborating with product managers, data scientists, and engineers across disciplines. Act as a bridge between product, engineering, and analytics teams to ensure alignment on data and AI initiatives.
Key Responsibilities
Software Engineering & Architecture
Design and develop full-stack applications using .NET, C#, Angular, and modern web technologies (JavaScript/TypeScript, HTML, CSS).
Build scalable backend services and APIs, integrating with databases and cloud platforms.
Lead end-to-end delivery of high-quality software solutions, ensuring performance, security, and maintainability.
Conduct code reviews, mentor engineers, and enforce coding standards and best practices.
Data Engineering & Analytics
Integrate data from multiple sources and curate datasets for reporting, dashboards, and AI applications.
Participate in data modeling efforts involving multiple data sources with dependencies across enterprise data models.
Develop and embed reporting capabilities using tools like Power BI.
Write and optimize DAX expressions; manage and refactor Power BI source queries to align with evolving data architecture.
Ensure data governance, security, and compliance with privacy regulations.
LLM & AI Systems
Build and maintain LLM pipelines including prompt engineering, fine-tuning, and Retrieval-Augmented Generation (RAG).
Integrate with APIs from providers like OpenAI and manage vector databases.
Debug and evaluate natural language queries translated to SQL, especially in AI-powered tools like Copilot.
Identify and implement new capabilities to expand the functionality of AI assistants like Copilot.
What You’ll Bring
10+ years of experience in software engineering, with strong full-stack development skills.
Experience in data engineering, including big data technologies (Spark, Databricks, Data Lake).
Proficiency in C#, .NET Core, Python, and SQL; experience with cloud platforms (Azure preferred).
Experience with REST APIs, asynchronous messaging, and microservices.
Strong understanding of LLM concepts, including prompt engineering, fine-tuning, and RAG.
Familiarity with CI/CD pipelines, TDD, and Agile methodologies.
Stay up to date on everything Blackbaud, follow us on Linkedin, Twitter, Instagram, Facebook and YouTube
Blackbaud is a remote-first company which embraces a flexible remote work culture. Blackbaud supports hiring and career development for all roles from the location you are in today!
Blackbaud is proud to be an equal opportunity employer and is committed to maintaining a diverse and inclusive work environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.
To all recruitment agencies: We do not accept unsolicited agency resumes and are not responsible for any fees related to unsolicited resumes.
A notice to candidates: Recruitment Fraudulent Alert: Your personal information and online safety as a candidate mean a lot to us! At Blackbaud and our portfolio of companies, recruiters only direct candidates to apply through our official careers page at https://careers.blackbaud.com/us/en or our official LinkedIn page. Recruiters will never request payments, ask for financial account information or sensitive information like social security numbers, or conduct interviews via Skype. Anyone suggesting otherwise is not a representative of Blackbaud. If you are unsure if a message is from Blackbaud, please email blackbaudrecruiting@blackbaud.com.
The starting base pay is $133,700.00 to $173,800.00. Blackbaud may pay more or less based on employee qualifications, market value, Company finances, and other operational considerations.
Benefits Include:
Medical, dental, and vision insurance
Remote-first workforce
401(k) program with employer match
Flexible paid time off
Generous Parental Leave
Volunteer for vacation
Opportunities to connect to build community and belonging
Pet insurance, legal and identity protection
Tuition reimbursement program
About the job
Apply for this position
Principal Software Engineer, .NET / Data / AI
About the Role
We are seeking a highly experienced and versatile Principal Engineer with expertise in full-stack development, data engineering, and large language model (LLM) systems. This role is ideal for a technical leader who thrives in cross-functional environments, enjoys solving complex problems, and is passionate about building scalable, intelligent, and impactful software solutions.
You will lead the design and development of modern web applications, data pipelines, and AI-powered systems, collaborating with product managers, data scientists, and engineers across disciplines. Act as a bridge between product, engineering, and analytics teams to ensure alignment on data and AI initiatives.
Key Responsibilities
Software Engineering & Architecture
Design and develop full-stack applications using .NET, C#, Angular, and modern web technologies (JavaScript/TypeScript, HTML, CSS).
Build scalable backend services and APIs, integrating with databases and cloud platforms.
Lead end-to-end delivery of high-quality software solutions, ensuring performance, security, and maintainability.
Conduct code reviews, mentor engineers, and enforce coding standards and best practices.
Data Engineering & Analytics
Integrate data from multiple sources and curate datasets for reporting, dashboards, and AI applications.
Participate in data modeling efforts involving multiple data sources with dependencies across enterprise data models.
Develop and embed reporting capabilities using tools like Power BI.
Write and optimize DAX expressions; manage and refactor Power BI source queries to align with evolving data architecture.
Ensure data governance, security, and compliance with privacy regulations.
LLM & AI Systems
Build and maintain LLM pipelines including prompt engineering, fine-tuning, and Retrieval-Augmented Generation (RAG).
Integrate with APIs from providers like OpenAI and manage vector databases.
Debug and evaluate natural language queries translated to SQL, especially in AI-powered tools like Copilot.
Identify and implement new capabilities to expand the functionality of AI assistants like Copilot.
What You’ll Bring
10+ years of experience in software engineering, with strong full-stack development skills.
Experience in data engineering, including big data technologies (Spark, Databricks, Data Lake).
Proficiency in C#, .NET Core, Python, and SQL; experience with cloud platforms (Azure preferred).
Experience with REST APIs, asynchronous messaging, and microservices.
Strong understanding of LLM concepts, including prompt engineering, fine-tuning, and RAG.
Familiarity with CI/CD pipelines, TDD, and Agile methodologies.
Stay up to date on everything Blackbaud, follow us on Linkedin, Twitter, Instagram, Facebook and YouTube
Blackbaud is a remote-first company which embraces a flexible remote work culture. Blackbaud supports hiring and career development for all roles from the location you are in today!
Blackbaud is proud to be an equal opportunity employer and is committed to maintaining a diverse and inclusive work environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.
To all recruitment agencies: We do not accept unsolicited agency resumes and are not responsible for any fees related to unsolicited resumes.
A notice to candidates: Recruitment Fraudulent Alert: Your personal information and online safety as a candidate mean a lot to us! At Blackbaud and our portfolio of companies, recruiters only direct candidates to apply through our official careers page at https://careers.blackbaud.com/us/en or our official LinkedIn page. Recruiters will never request payments, ask for financial account information or sensitive information like social security numbers, or conduct interviews via Skype. Anyone suggesting otherwise is not a representative of Blackbaud. If you are unsure if a message is from Blackbaud, please email blackbaudrecruiting@blackbaud.com.
The starting base pay is $133,700.00 to $173,800.00. Blackbaud may pay more or less based on employee qualifications, market value, Company finances, and other operational considerations.
Benefits Include:
Medical, dental, and vision insurance
Remote-first workforce
401(k) program with employer match
Flexible paid time off
Generous Parental Leave
Volunteer for vacation
Opportunities to connect to build community and belonging
Pet insurance, legal and identity protection
Tuition reimbursement program