Senior Software Engineer

ActionLink is seeking a Senior Software Engineer to modernize and evolve a Microsoft-based technology stack, with a strong emphasis on AI adoption and platform transformation. This role involves maintaining critical .NET and SQL Server systems while leading their evolution into AI-enabled solutions.

Responsibilities:

• Design, develop, maintain, and support enterprise applications using modern.NET (.NET 9 and beyond)
• Jump into existing and legacy .NET applications to troubleshoot issues, support integrations, and improve stability and maintainability
• Work extensively with Microsoft SQL Server, including writing and optimizing SQL queries, views, and stored procedures
• Support and enhance existing database schemas and data integrations
• Build and maintain APIs and backend services that integrate internal and external systems
• Identify opportunities to modernize, refactor, and improve current solutions without disrupting business operations
• Participate in technical discussions and help guide design and architectural decisions
• Collaborate closely with engineers, business partners, and stakeholders
• Evaluate and apply modern AI development tools and models to accelerate coding and AI assisted development
• Implement LLM-based solutions, leveraging next-token prediction and advanced pattern recognition to generate accurate, context-aware responses
• Identify and mitigate LLM hallucinations by improving prompt design, context quality, and grounding strategies to reduce incorrect pattern matches
• Retrieval-Augmented Generation (RAG) pipelines that enrich LLM prompts with relevant enterprise documents and structured data
• Vector search workflows, storing embeddings in vector databases to retrieve semantically similar content based on user prompts
• Develop and maintain vector databases, converting text into embeddings and optimizing similarity search for relevance, accuracy, and performance
• Design and deploy AI agents capable of breaking complex prompts into steps and executing tasks using external tools and services
• Enable AI agents to call APIs, query databases, run code, and automate workflows, including scheduling and transactional operations
• Implement tool-calling architectures, allowing agents to dynamically select and execute the appropriate tools for each task
• Integrate and operate MCP (Model Context Protocol) servers, standardizing how models access tools, data and execution environments
• Establish and follow MLOps practices, including model versioning, deployment monitoring, and lifecycle management in production environments

Requirements:

• Bachelor's degree required
• Minimum of seven (5) years of software engineering experience with a focus on .Net, AI and SQL
• Passionate about technology and continuous improvement
• Interested in AI and practical, real-world application
• Confident communicator who is comfortable speaking up in meetings
• Willing to challenge ideas, call out issues, and propose solutions
• Strong sense of ownership and a proactive, can-do attitude
• Able to balance maintaining today's systems while building toward the future
• Strong, independent worker who's ready to jump in and start contributing on a small engineering team
• Microsoft Azure experience
• AI tools, concepts or experimentation exposure
• Modernizing or refactoring legacy systems experience
• Familiarity with automation, DevOps, or cloud-native practices