Senior .NET/C# Engineer (Virtual Power Plant)

TL;DR

Senior .NET/C# Engineer (Virtual Power Plant): Building and maintaining backend services and integrations in .NET/C# that steer distributed batteries, rooftop solar, and other behind-the-meter assets into hirify.global's Virtual Power Plant with an accent on event-driven, always-on reliability across multiple European markets. Focus on designing scalable high-availability systems, connecting data flows for aggregation, and owning technical architecture decisions while sharing on-call responsibility in a 24/7 environment.

Location: Hybrid from Rotterdam; based in the Netherlands; 40% office, 40% home, 20% flexible. With manager approval, work abroad (within approved countries) up to 3 weeks/year (max 2 consecutive).

Company

hirify.global builds smart digital platforms for a climate-neutral energy system, including a Virtual Power Plant that coordinates distributed assets.

What you will do

• Build and maintain backend services and integrations in .NET/C#.
• Develop solutions that optimize behind-the-meter assets (batteries, rooftop solar, and other installations).
• Connect data flows so smaller assets can join the energy market as part of hirify.global's VPP pool.
• Share on-call duty for a system running 24/7 in live energy markets.
• Drive Proof of Concepts and collaborate with architects on system design.
• Mentor medior and junior engineers through code reviews and technical guidance.

Requirements

• Around 7 years of backend experience with .NET/C# and building complex distributed systems.
• Experience designing and owning high-availability production systems at scale (ideally real-time or data-intensive domains).
• Strong event-driven architecture and async messaging experience (Kafka, Azure Event Hubs, or RabbitMQ).
• Hands-on experience with Azure, CI/CD, containers (Docker/Kubernetes), microservices, and relational/non-relational data.
• Comfort with 24/7 on-call responsibility and leading cross-functional technical discussions.
• Based in the Netherlands and fluent in English.

Culture & Benefits

• Hybrid working model: 40% office, 40% home, 20% flexible.
• FlexBudget plus 8% holiday allowance; bonus or collective profit sharing depending on role.
• Personal and professional growth support.
• Cross-functional team with knowledge sharing, learning together, and room to grow.

Hiring process

• Application procedure phases are provided in the posting (details not included in the excerpt).