Summary: Seeking a Data Platform Engineer and Full Stack Developer with leadership and architecture skills to build complex financial reporting and analytics software, focusing on challenging data systems and high-performance backend development. Highlights: 1. Develop complex query engines, OLAP systems, and semantic layers 2. Focus on building clean, high-performance backend systems 3. Technical co-ownership and architectural leadership opportunities Data Platform Engineer and Full Stack Developer Location: Remote About Vivid Reports Vivid Reports builds Excel-native financial reporting and analytics software for CFOs and financial planning and analysis teams. We not only build web applications, we build metrics engines similar to a BI semantic layer that powers Excel reporting. We believe Chief Financial Officers want Excel as their front end, but it must be powered by a governed, high-performance metrics engine behind it. We build reporting engines powered by a semantic layer that allows organizations to define KPIs once, govern them centrally, and reuse them across every Excel report the company builds, securely and at speed. We are not building dashboards. We are building the engine behind trusted financial reporting. You are the type of engineer that wants to be challenged and work with complex query engines, OLAP systems, semantic layers, BI tooling, financial reporting systems and ETL pipelines. All work is conducted in English. Applicants must have advanced written and verbal English communication skills. The Role We are hiring a Data Platform Engineer and Full Stack Developer with leadership and architecture skills that can visualize an outcome, break it to pieces, and deliver successfully. This role is hands-on. You must understand system and data architecture and have experience designing and building business intelligence or data-driven platforms. You enjoy building clean, high-performance backend systems as much as refining a UI to make it intuitive and visually polished. Experience using AI-assisted development tools is highly valued. We are looking for engineers who are open-minded and practical about leveraging AI, knowing where it accelerates development, improves quality, and enhances productivity, and where sound engineering judgment still matters most. What You Will Build - Semantic Metrics Engine - Fact and dimension modeling - Grain enforcement and join path validation - Metadata driven KPI formula engine - Versioning, lineage, and change-impact tracking - Role and row level security enforcement Execution & Performance Layer - SQL query planning, rewriting and optimization - Execution plan analysis and cost based tuning - Aggregation strategies and indexing - Star, Snowflake (Galaxy), and Constellation schema design, Cube and OLAP modeling - Caching and Excel refresh performance (2 to 4 seconds target) Excel Integration - Excel Web Add-in built with the Microsoft Office JavaScript API - Excel open XML - Cell binding to governed metrics Platform and APIs - Backend architecture built on the Microsoft .NET platform - Background workers - Structured release processes Required Experience - Deep backend architecture built on the Microsoft platform - Advanced SQL Server (indexing, execution plans, performance tuning) - Experience owning or stabilizing a production SaaS product - Experience with Excel integration or building complex web-based integrations - Solid understanding of data modeling (facts, dimensions, grain) - Ability to translate business requirements into technical design Over the Next 12 to 18 Months You Will - Assume technical co-ownership of the product - Contribute to multi-quarter architecture and roadmap planning - Improve scalability, security, and system reliability - Support sales and customer technical discussions - Plan for team expansion and mentor junior engineers This Role Is For Someone Who - Thinks in systems, not tickets - Cares deeply about performance and correctness - Can move comfortably between backend, database, and front-end - Wants architectural ownership, not just feature work. -Requerimientos- Educación mínima: Universitario 5 años de experiencia Idiomas: Inglés Conocimientos: .net, .net core, Análisis de datos, Análisis de sistemas, Node.js, React, Xml, Aplicaciones de big data, Ingeniería de datos Palabras clave: datos, data, ingeniero, engineers, ingeniera, ing, engineer, desarrollador, programador, casa, remoto, remote, teletrabajo, home