Software Engineer (C# - VSTO) - Europe

The Company

At Rollstack, we're revolutionizing how businesses share and communicate their data. Data-driven slide decks and documents are pivotal in sharing data and insights within organizations and outside.

Rollstack is creating a new category in the modern data stack: Report Automation. We connect BI tools to slide decks and documents, automating their generation and updates, and effectively solving the last-mile problem of data presentation.

We assist some of the world's leading organizations, like SoFi, 1Password, and Zillow, in automating their slide decks and documents. We offer a remote-friendly workplace and are backed by Y Combinator, top VCs, and seasoned business angels.

We're a dynamic, talented, and innovative team committed to making a real difference in how companies present and utilize their data.

What You’ll Do

As a Software Engineer focused on VSTO:

• Extend and maintain our C# VSTO add-in for Microsoft PowerPoint.

• Build advanced user-facing features such as:

• Dynamic data sync and refresh.

• AI-generated insights embedded in slides.

• Native chart rendering inside Office.

• Data filters, refresh buttons, and editable content components.

• Interface with our backend (Node.js, Prisma ORM, Temporal) to sync document state with cloud data.

• Handle PowerPoint file parsing (e.g., XML, relationships) to track and update content programmatically.

• Integrate with BI tools like Tableau, Looker, and Metabase to bring visualizations directly into presentations.

• Build tight feedback loops for Office users through observability, error reporting, and usage analytics.

• Optimize the add-in’s performance, startup time, and reliability on large enterprise decks.

Tech Stack

• C# – VSTO add-in for PowerPoint, OpenXML
• Node.js & React – frontend/backend and sync engine
• PostgreSQL – relational data store
• Temporal – durable workflows for sync and automation
• Kubernetes (EKS) – minimal infra, deployed via Argo CD
• Langfuse, LangChain – for in-document AI features

What You’ll Gain Working At Rollstack

• Innovative Impact: Build core infrastructure at a YC-backed company, automating enterprise reporting.
• Collaborate with Experts: Work with a senior, product-oriented team across AI, data, and infra.
• Remote Culture: Fully remote team with diverse, inclusive values and flexible hours.
• Biannual Retreats: Join semi-annual team gatherings to connect, share, and recharge.
• Strong Equity: Get a meaningful stake in the company’s growth and future.

Who We’re Looking For

• 3–8 years of professional experience.
• At least 2 years of recent development experience in C#.
• Strong experience building or maintaining Office add-ins (VSTO experience is a must).
• Strong product intuition, with a track record of collaborating with PMs and designers.
• Comfortable digging into PowerPoint internals, Office APIs, and the quirks of COM interop.