Job
- Level
- Experienced
- Job Field
- Web, BI, Full Stack
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Salary
- from 57.000 € gross/year
- Location
- Vienna
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you integrate energy provider systems such as billing and customer portals, develop new features, and ensure seamless connection of EMS, inverters, and charging points.
Job Technologies
Your role in the team
- You integrate Sonnig into the systems of energy providers - ERP, billing, customer portals.
- Furthermore, we will connect EMS, inverters, and charging points in the future.
- You make local energy accessible and useful for everyone.
- You work closely with product and utility partner teams to ensure that our components run quickly, stably, and reusable in third-party systems.
- EVU Integration: Embedding simulation & dashboard into third-party customer portals, connecting ERP & billing.
- Integrate additional systems: EMS, inverters, charging points - via APIs & Webhooks.
- Further develop the core platform: sharing processing, billing, presentation.
- Testing & Debugging: real check points, real invoices, quick fixes.
- Ownership: You are responsible for smooth integrations.
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Our expectations of you
Qualifications
- You build systems with observability, testing, deployment, flexibility, and maintainability.
- Skills: .NET, Agile Software Development, C#, Database Management Systems, Flawless German, English, Requirements Engineering, Software Documentation, Vue 3, TypeScript, Vite; ASP.NET Core (C#), PostgreSQL; GitHub & CI/CD.
Experience
- Relevant experience in Fullstack development, you implement independently and take responsibility.
- Experience with APIs, Webhooks, OAuth, and integration into system landscapes.
- Bonus: Experience with EVU-/ERP-integration (SAP IS-U, Schleupen, powercloud).
- Bonus: Experience with market communication, white-label products.
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What we offer
- The minimum salary, including overpayment, for the position of Software Developer is EUR 57,000.00 gross per year based on full-time employment.
- Hybrid possible - Flexible working hours - 1-2 times per year team workation at a beautiful location - Public transport ticket.
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Benefits
Work-Life-Integration
Topics You Will Work On
Job Locations
About Your Employer
sonnnig FlexCo
sonnnig FlexCo is a Vienna-based company that focuses on software solutions, billing, and operational support for energy communities. It enables direct and local trading of electricity from renewable sources such as photovoltaic systems and wind farms, particularly targeting companies that wish to efficiently share surplus electricity with their employees.
Description
- Company Type
- Startup
- Working Model
- Hybrid, Onsite
- Industry
- Power Sector, Economy
Software developer
- Salary
- from 57.000 € gross/yearEstimated net salary based on the gross salary in the job ad.from 39.504 € net/year
- Location
- Vienna
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
