.NET VSTO Engineer

About Us:- Net2Source Inc. is one of the fastest growing diversities certified global workforce solutions companies with an unprecedented YoY growth of over 100% for last 6 years working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia, and Middle East.

About the Role: Job Title

–

.NET VSTO Engineer Location –

European Union (EU) Mode of Work –

Fully Remote Type of Hiring –

B2B Contract Project Duration

– 6-12 Months

Qualifications: Bachelor’s degree in computer science, Information Technology, or related field. 5+ years of experience

with .NET development ( C# ), including COM interop. 3+ years hands-on experience

building

C# VSTO add-ins for PowerPoint. Word add-in experience is beneficial, especially Word object model automation. Proven experience building or contributing to

plugin suites for PowerPoint

(multi-add-in architecture, shared services, governed styling, Office object model automation). Cross-platform mindset:

experienced with or actively using

Office.js PowerPoint APIs

for modern add-ins (Mac + Windows support). Practical Python experience

with libraries for PPTX creation, editing, charts, and table generation (e.g., python-pptx). Proficiency with

Git and GitHub , including CI/CD familiarity. Strong communication and cross-functional collaboration skills. English fluency

on technical topics (written & spoken, non-negotiable)

Key Responsibilities: PowerPoint Add-In Engineering Develop, optimize, and maintain C# VSTO add-ins for PowerPoint (classic, reliable, enterprise-compliant). Build modern PowerPoint add-ins using Office.js when cross-platform or UI-driven features are required. Architect logic for: Modular slide assembly Formatting automation with brand compliance Office object model automation (COM/XAML/JS where appropriate) Connect add-ins to internal or cloud Python automation services (slide generation, charts, tables, prototyping, batch processing). Quality & Governance Conduct thorough code reviews, uphold security, stability, and clean architecture principles (SOLID, layered design, separation of concerns). Ensure predictable and reliable output across global add-in deployments. Collaboration & Transparency Work with cross-functional teams to refine requirements and build products that solve real slide production challenges (consistency, speed, governance, intelligence). Communicate proactively about technical challenges, propose trade-offs, and document decisions clearly. Product Ownership Mindset Seek solutions, propose multiple implementation options when needed, and contribute to shaping a suite of maximally useful and governed PowerPoint add-ins.

Technical Skills: C# advanced Deep knowledge of PowerPoint object model automation in VSTO and VBA Strong command of COM interoperability, Office object model, and layered add-in architecture Comfortable reading/writing/optimizing VBA logic translated into C# Familiar with deterministic styling strategy (brand-aligned exceptions, controlled formatting automation) Office.js advanced PowerPoint JavaScript APIs, task panes, event-driven assistants, cross-platform execution Python Slide Automation python-pptx (strong practical usage) Chart generation, table rendering, templated slides, structured JSON → slide assembly Understanding of how Python services can function as middleware or add-in companions Version Control & Deployment Git, GitHub, CI/CD pipelines, governed enterprise constraints Bonus Skills WPF (MVVM) or XAML UI experience Knowledge graph or modular JSON slide input