C# .NET Core Developer – Germany

Hornetsecurity GmbH; Germany (OH); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

Home-office option

Be-Active Bonus for fitness memberships

Employer contribution to the pension plan

Temporary Employee Exchange Program

Referral Bonus

Team events

Job summary

Hornetsecurity GmbH is seeking a motivated C# .NET Core Developer to join their dynamic international team. You will work on creating a malware protection solution, develop core backend systems, and design scalable REST APIs.

Ideal candidates will have 3-4 years of experience in software development and a solid understanding of C#/.NET Core. The position offers flexible working options, professional development opportunities, and a supportive work atmosphere.

Qualifications

• 3-4 years of experience in software development.
• Strong background in C#/.NET Core development.
• Expert knowledge in background data processing using message brokers.

Responsibilities

• Develop core malware protection solutions.
• Build backend systems for flagship products.
• Design and scale REST APIs.

Skills

C#/.NET Core development

Background data processing

Communication skills

Fluency in English

Tools

Microsoft SQL Server

Redis

RabbitMQ

Angular

TypeScript

Elasticsearch

ClickHouse

Job description

The Hornetsecurity Group is the leading cloud security provider in Europe, protecting the IT infrastructure, digital communication, and data of companies and organizations of all sizes.

Join our fight against cybercrime and become part of the international team! We’re on the lookout for a highly motivated C# .NET Core Developer.

Your Job

• You will join a team of diverse specialists and create the core of what makes our products successful: A malware protection solution that our users love and badguysdread. Working primarily with .NET Core, you will have a direct and immediate impact on the security of end-users.
• You will build the backend systems that power Hornetsecurity‘s flagship product.
• You will design and scale REST-based APIs and background services using technologies like .NET Core, Redis and RabbitMQ
• You will write beautiful code accompanied by good documentation and coverage by integration tests.
• Frontend: Angular, TypeScript, RxJS, HTML5, CSS3.
• Storage and messaging: Microsoft SQL Server, Redis, Elasticsearch, ClickHouse, RabbitMQ.

Your Profile

• You have 3-4 years of experience in software development
• You have strong background in C#/.NET Core development.
• Expert knowledge in background data processing using message brokers and task queues.
• Strong communication skills with ability to efficiently deal with software requirements, questions, concerns and feedback in both directions.
• You are fluent in English.
• Be part of a growing global company in one of the most dynamic industries — cybersecurity.
• Short decision paths and flat hierarchies in an open working atmosphere.
• Personal and professional development opportunities.
• Home-office option and flexible, trust-based working time.
• Be-Active Bonus — allowance for membership in fitness and sports clubs.
• Whether by car, public transport, or bike – we make your commute easier with free parking, a GVHJobCard(Hanover), a tax‑free commuting allowance (Berlin), or bike leasing.
• Employer contribution to the company pension plan.
• Unlimited contracts — we’re looking for hornets to grow long-term with us.
• Temporary Employee Exchange Program – opportunity to work at our global office locations (e.g. Malta, Madrid, Montréal, Washington D.C.).
• Referral Bonus: €1,500 for every successful candidate referral.
• Team events like laser tag, an escape room, or a get‑together at our own legendary beer truck in Hanover – let yourself be surprised!