Senior Fullstack Developer (m/w/d)

ATS is an industry-leading automation solutions provider to many of the world’s most successful companies. ATS uses its extensive knowledge base and global capabilities in custom automation, repeat automation, automation products and value-added services, including pre-automation and after-sales services, to address the sophisticated manufacturing automation systems and service needs of multinational customers in markets such as life sciences, food & beverage, transportation, consumer products, and energy.

Founded in 1978, ATS employs over 5,000 people at 28 manufacturing facilities and over 50 offices in North America, Europe, Southeast Asia and China.

Your role:

Full Stack Development

Design, develop, and maintain frontend and backend components of the platform such as databases
Build modern, responsive user interfaces
Develop backend services and APIs
Implement authentication and authorization concepts, including SSO (OAuth2, OpenID Connect, SAML)
Integrate and maintain SCORM-compliant training content and learning workflows
Collaborate closely with 3D/VR developers to integrate immersive training modules
Ensure performance, security, scalability, and reliability across the system

Quality, Testing & Monitoring

Contribute to test strategies and ensure high software quality
Create, maintain, and execute test cases
Collaborate with QA and product teams to define acceptance criteria
Analyze test results and support defect tracking and resolution

Senior-Level Responsibilities

Take technical ownership of key components and features
Drive architectural and technology decisions within the web ecosystem
Identify technical debt and actively improve code quality and system design
Review code and provide constructive, high-quality feedback

Required Skills & Experience

Several years of professional experience as a Fullstack Developer, ideally in a Senior role
Strong experience with ASP.NET Core (C#) in enterprise-grade applications
Solid frontend experience with React and modern JavaScript/TypeScript
Experience building and maintaining REST APIs
Strong knowledge of SSO technologies (OAuth2, OpenID Connect, SAML)
Experience with SCORM or e-learning platforms
Strong understanding of Microsoft SQL Server and relational database design
Experience with cloud-based architectures and SaaS platforms
Experience with test management tools
Solid understanding of software architecture, design patterns, and best practices
Hands-on Experience with AI Coding Agents
Fluent in English (spoken and written)

Nice to Have

Experience with 3D, VR, or simulation-based software
Experience with CI/CD pipelines and DevOps workflows
Knowledge of containerization and cloud platforms (e.g. Docker, Azure, AWS)
Experience with enterprise customer environments (Entra ID/AD, network restrictions, certificates) and/or customer-hosted deployments (on-prem/private cloud)

ATS is an industry-leading automation solutions provider to many of the world’s most successful companies. ATS uses its extensive knowledge base and global capabilities in custom automation, repeat automation, automation products and value-added services, including pre-automation and after-sales services, to address the sophisticated manufacturing automation systems and service needs of multinational customers in markets such as life sciences, food & beverage, transportation, consumer products, and energy.

Founded in 1978, ATS employs over 5,000 people at 28 manufacturing facilities and over 50 offices in North America, Europe, Southeast Asia and China.

Our shared purpose: Creating solutions that positively impact lives around the world.

We value PEOPLE: Having the best team and winning as a team.
The foundation of a great company is having the best team which is why we continuously work to develop, engage, empower and energize our people. We support our people to foster a safe, positive, and inclusive work environment where everyone is respected and given the opportunity to do their best.

We value PROCESS: Our commitment to continuous improvement.
We align around the ATS Business Model to pursue continuous improvement in all aspects of our business. With a balance of strategic thinking and tactical execution, we ensure that we are delivering value for our customers today and in the future.

We value PERFORMANCE: Delivering results for our customers, shareholders and employees.
We compete to win everyday, always with uncompromising integrity and holding ourselves to the highest ethical standards. We develop innovative solutions to complex problems, and deliver a unique value that fuels growth in our markets. We own our results and have full accountability to creating value for our customers and shareholders.

Are you interested in becoming part of an economically successful, future-oriented and international company? We look forward to receiving your application, stating your salary requirements and availability via our career portal.