Senior .NET Backend Developer (m/f/d)

Onventis; Stuttgart; Hybrid; EUR 60.000 - 80.000; Vollzeit

Benefits dieser Stelle

Hybrid work model with modern tools

Free parking and Job Ticket

Urban Sports membership

Structured onboarding and training programs

Attractive salary package

Sabbatical opportunities

Zusammenfassung

A leading software development firm in Stuttgart is hiring a .NET Backend Developer to create and maintain cloud native micro-services architecture. The ideal candidate should have strong proficiency in C# with .NET Core, experience in database technologies like SQL and MongoDB, and familiarity with Docker and Kubernetes. This full-time role offers a hybrid working model, competitive salary, and robust career growth opportunities in a supportive environment.

Qualifikationen

• Experience with C# using .NET Core and .NET Framework is essential.
• Familiarity with databases such as MS SQL, Redis, and MongoDB.
• Knowledge of containerization with Docker and orchestration with Kubernetes.
• Proficient in creating and consuming REST APIs.
• Capability in performing integration and unit tests.
• Experience with version control using Git.

Aufgaben

• Build and maintain cloud native micro-services architecture.
• Refactor existing solutions and slice larger services into smaller components.
• Ensure high quality through code reviews, unit tests, and documentation.
• Collaborate with the product manager for goal alignment.

Kenntnisse

C# (.NET Core & .NET Framework)

MS SQL

Redis

MongoDB

Docker

Kubernetes

REST APIs

Integration and unit test skills

Git

Jobbeschreibung

Our Story

Every great career begins somewhere, and this one starts here. We are a team that believes in big ideas, bold moves and the people behind them. This is where you could be part of something exciting!

Onventis has been a cloud pioneer for digital transformation of purchasing and finance processes since 2000. The cloud‑based software Onventis Buyer is an all‑in‑one procurement system that helps companies manage their business spend to achieve financial control, efficiency, compliance and cost savings.

Why This Role Matters

In this role you will directly shape the functionality, performance, and scalability of our products by creating cloud native, scalable and high‑performing solutions for enterprise level. From day one you will build applications and services that stand alone for their value and quality on the procurement market.

Your Role at a Glance

As our .NET Backend Developer, you will be responsible for building and maintaining cloud native micro‑services architecture as well as refactoring existing solutions and slicing larger services into smaller chunks.

How You Will Work

• Actively participate in development meetings to learn new company horizons and goals.
• Contribute in technical planning meetings by discussing user stories and decomposing tasks; begin with the end result in mind.
• Ensure high quality of the delivered products (documentation, code reviews, unit tests, API tests, monitoring, tracing, and alerting).
• Collaborate closely with the product manager to ensure the team understands the purpose clearly.
• Escalate when help is needed to the Director of Products.
• Align with the team during daily stand‑up meetings.
• Speak out with improvement suggestions during retrospective meetings that work.

Your Experience and Skills

We are looking for someone who brings:

Must‑haves

• C# (.NET Core & .NET Framework)
• MS SQL, Redis, MongoDB
• Docker, Kubernetes
• REST APIs
• Integration and unit test skills
• Git

Nice‑to‑haves

• Elastic & Kibana
• CQRS/CQS; Event Sourcing

More importantly, we are looking for someone who is curious, detail‑oriented, and passionate about writing clean, maintainable code!

Our Commitment to You

Our CORE values bring our varied cultural background and products together and ensure how we invest in our people. At Onventis, you can expect a performance‑focused culture where achievements are recognized, goals are prioritized, and careers accelerate.

We offer more than just a job: join the Onventis cloud platform for buyers and suppliers! Our solutions are used by 1.2 million registered users in 21 languages worldwide. We live innovation, support each other, grow together and we show it with real benefits:

• Flexibility: Hybrid work model with modern tools and equipment
• Mobility: Free parking, Job Ticket, JobRad leasing
• Health & Wellbeing: Urban Sports membership, fresh fruit, drinks, and meal subsidies
• Career Growth: Structured onboarding, training programs, leadership & language courses
• Culture: Friendly team spirit, clear structures, regular team events & gatherings
• Rewards: Attractive salary package, pension plan plus discounts, referral rewards & sabbatical opportunities
• Global Collaboration – Work where it works for you: turn your travels into opportunities to meet, create, and connect at any of our centrally located EU hubs. Travel and stay are self‑organized!

Everything you need is on our career’s website.

Seniority Level

Mid‑Senior level

Employment Type

Full‑time

Job Function

• Information Technology
• Product Management
• Other

Industries

Software Development

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