Senior .Net Software Developer

Vistex; Deutschland; Vor Ort; EUR 70.000 - 110.000; Vollzeit

Zusammenfassung

Vistex in Walldorf is seeking a Senior .NET Developer with 6+ years of experience in C#, .NET Core, and ASP.NET Core to lead the design and evolution of complex software systems, mentoring developers and shaping architectural direction.

On-site participation is expected at least two days per week, with responsibilities spanning RESTful APIs, microservices, Docker deployments, CI/CD, and collaboration with Product, QA and DevOps to deliver secure, high-performance applications.

Qualifikationen

• Bachelor's degree in Information Technology or related field.
• 6 years of experience required with C#, .NET Core, ASP.NET Core.
• Proven experience designing and building RESTful APIs and backend services.
• Solid understanding of Clean Architecture, SOLID, OOP, and DDD.
• Hands-on experience with relational and NoSQL databases.
• Experience with microservices and Docker-based deployments.
• Good knowledge of Azure and/or AWS cloud platforms.
• Proficiency with Git, CI/CD pipelines, and Agile/Scrum methodologies.
• Excellent command of English, both written and spoken.

Aufgaben

• Leading technical analysis and architectural decisions to build scalable, secure .NET applications and RESTful services.
• Owning the full lifecycle of delivered solutions, ensuring high performance and operational stability.
• Driving improvements to system architecture, coding standards, and engineering practices.
• Resolving complex technical problems across components and services.
• Coaching and mentoring mid-level and junior developers through structured feedback and code reviews.
• Conducting knowledge-sharing sessions and supporting team capability growth.
• Partnering with Product, QA, and DevOps to translate requirements into robust solutions and supporting CI/CD and containerization.
• Contributing to technical strategy, design discussions, and solution brainstorming.
• Ensuring application performance, security, and operational stability.

Kenntnisse

C#

.NET Core

ASP.NET Core

RESTful APIs

Clean Architecture

SOLID principles

OOP

DDD

Microservices

Docker

Azure

AWS

Entity Framework Core

Git

CI/CD

Agile/Scrum

English proficiency

Ausbildung

Bachelor's degree in Information Technology or related field

Tools

Docker

Azure

AWS

Entity Framework Core

Git

CI/CD pipelines

SQL/NoSQL databases

Jobbeschreibung

Vistex is a global enterprise software and services company that helps businesses take control of their mission-critical processes. With a multitude of programs covering pricing, trade, royalties and incentives, it can be complicated to see where all the money is flowing, let alone how much difference it makes to the topline and the bottom line. With Vistex, business stakeholders can see the numbers, see what really works, and see what to do next – so they can make sure every dollar spent or earned is really driving growth, and not just additional costs. The world’s leading enterprises across a spectrum of industries rely on Vistex every day to propel their businesses.

Vistexis growing and we are lookingfor Senior .NET Developer, who will lead the design and evolution of complex software systems, blending technical expertise with the art of programming. Operating with high autonomy, you’ll influence architectural direction, mentor fellow developers, and contribute to cutting-edge technologies that redefine our client experiences

We are looking for a new colleague in Walldorf with over 6 years of experience in C#, .NET Core, and ASP.NET Core and is open to work on-site at least two days per week.

Responsibilities:

• leading technical analysis and architectural decisions to building scalable, secure .NET applications and RESTful services
• owning the full lifecycle of delivered solutions, ensuring high performance, reliability, and operational stability
• driving improvements to system architecture, coding standards, and engineering practices
• resolving complex and ambiguous technical problems across components and services
• coaching and mentoring mid-level and junior developers through structured feedback, pairing, and leading high-standard code reviews.
• conducting technical knowledge-sharing sessions and support team capability growth
• partnering with Product, QA, and DevOps to translate requirements into robust solutions, supporting CI/CD and containerization practices
• contributing to technical strategy, design discussions, and solution brainstorming
• ensuring application performance, security, and operational stability

About us:The Vistex platform helps businesses finally get control of all their different promotions, rebates, SPAs, discounts, and other incentives. With so many programs across so many partner relationships, it can be impossible to see where all the money is going, let alone how much difference it’s actually making to revenue. With Vistex, business leaders can see the numbers, see what really works, and see what to do next – so they can make sure every dollar they spend really is driving more growth, not just more costs. It’s why global enterprises ranging from Coca-Cola to Sony to Grainger rely on Vistex every day. Vistex | Now it all adds up.

Qualifications

Skills

Behaviors

:

Motivations

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Education

Required

Bachelors or better in Information Technology or related field.

Experience

Required

6 years:

Experience with C#, .NET Core, and ASP.NET Core

Proven expertise in designing and building RESTful APIs and backend services

Solid understanding of Clean Architecture, SOLID principles, OOP, and Domain-Driven Design (DDD)

Hands-on experience with relational and NoSQL databases

Strong experience with Entity Framework Core and raw SQL optimization

Practical experience with microservices architecture and Docker-based deployments

Good knowledge of cloud platforms and hands-on experience with Azure and/or AWS

Proficiency with Git, CI/CD pipelines, and Agile/Scrum methodologies

Strong analytical, problem-solving, and technical communication skills

Excellent command of English, both written and spoken