Senior Engineer - Application and Product (ASP.NET)

WISEcode

About The Position

At WISEcode, we're a well-funded, dynamic startup. WISEcode makes personalized nutrition a reality based on the facts â what truly is in our food â and marries this data with your preferences. Powered by AI and the worldâs best food and nutrition database, WISEcode embraces the fact that we are all different, have different dietary needs, objectives, and preferences, and should not be at the mercy of market spin or âexpertâ opinion. Every one of us should have the information we need to make the best decisions for ourselves. The Opportunity We are hiring Senior ASP. NET Engineers to work on Code Builder, one of WISEcodeâs most strategic and technically interesting products. Code Builder is a production-grade platform that allows complex nutrition logic â rules, formulas, thresholds, transformations, and AI-assisted interpretation â to be assembled, executed, and evolved across hundreds of thousands of real foods. It sits at the intersection of: â¢ Large-scale, proprietary nutrition data â¢ Deterministic computation and scoring pipelines â¢ AI-assisted data acquisition and interpretation â¢ Rich, stateful, data-intensive user interfaces built in ASP.NET Blazor. This is not a greenfield demo and not a thin UI over APIs. It is a serious system, already in active use, with real architectural depth and room to grow. We are looking for senior engineers who enjoy stepping into sophisticated systems, understanding how they work, and making them better. About the Role As a Senior Software Engineer, you will be a hands-on contributor to Code Builder and adjacent platform components, with a strong focus on ASP.NET and Blazor. You will work in a mature, evolving codebase where: â¢ Architectural patterns already exist â¢ Data models are deep and nuanced â¢ Correctness matters â¢ Performance matters â¢ Changes must be thoughtful, not reckless Senior Engineers at WISEcode are expected to get productive quickly, navigate complexity confidently, and deliver high-quality features without needing constant direction. You will collaborate closely with Principal Engineers who define system direction, while owning meaningful pieces of execution yourself.

Requirements

6â10+ years of professional software development experience
Strong, hands-on experience with ASP.NET and modern C#
Production experience with ASP.NET Blazor (Server or WebAssembly)Experience working in large, long-lived codebases
Solid understanding of application architecture and layered systems
Experience with relational databases, ideally Postgres
Familiarity with Entity Framework Core or similar ORMs
Comfort reasoning across UI, API, and database layers
Ability to work independently while collaborating effectively with senior technical peers
Pragmatic engineering judgment â you value correctness, clarity, and maintainability

Nice To Haves

Experience working with complex domain models or rule-based systems
Exposure to AI/ML-powered features or data pipelines
Experience with performance tuning or profiling in ASP.NET / Blazor
Background in data-intensive or analytics-heavy products
Enterprise authentication and authorization systems
Microsoft Semantic Kernel, MCP Server SDK, Agent Framework

Responsibilities

Building and evolving rich, data-driven Blazor UIs that power Code Builderâs workflows
Implementing features that combine deterministic nutrition logic with AI-assisted insights
Working with complex domain models representing foods, ingredients, nutrients, processing, and health signals
Extending ASP.NET APIs and services that execute and orchestrate nutrition computations at scale
Integrating AI outputs responsibly into user-facing and internal workflows
Navigating and improving a large, long-lived production codebase
Debugging and optimizing behavior across UI, application logic, and database boundaries