Senior Full-Stack Developer @ Ascom

We are seeking an experienced Senior Full-Stack Developer to join our software engineering team. The ideal candidate will have extensive experience designing, developing, and maintaining enterprise-grade applications across desktop, web, and database platforms. This role requires strong expertise in Java Swing, JavaScript, PHP, HTML, CSS, and PostgreSQL, along with working knowledge of C++ and C# to support integration, maintenance, and enhancement of existing software products. The successful candidate will be responsible for delivering high-quality software solutions, contributing to system architecture decisions, mentoring junior developers, and collaborating with cross-functional teams to translate business requirements into scalable and maintainable applications.

Key responsabilities

Application Development

• Design, develop, test, and maintain full-stack applications using Java 17 and Java Swing, PHP, JavaScript, HTML, CSS, and PostgreSQL.
• Develop reusable components, services, and libraries.
• Implement and consume RESTful APIs and integration services.
• Ensure applications are secure, scalable, and performant.

System Architecture & Design

• Participate in technical design and architecture discussions.
• Evaluate new technologies and propose improvements.
• Define coding standards and best practices.
• Contribute to modernization and migration initiatives.

Database Management

• Design and optimize PostgreSQL databases, schemas, stored procedures, and queries.
• Monitor database performance and implement tuning strategies.
• Ensure data integrity, security, and backup/recovery practices.

Cross-Technology Development

• Support, develop and maintain components written in C++ and C#.
• Develop integration points between legacy and modern applications.
• Troubleshoot issues across multiple technology stacks.

Quality & DevOps

• Write clean, maintainable, documented code.
• Conduct code reviews.
• Maintain automated tests.
• Participate in CI/CD and deployment activities.
• Resolve production and performance issues.

Leadership & Collaboration

• Mentor junior and mid-level developers.
• Collaborate with Product Owners, QA, Architects, and Business Analysts.
• Participate in sprint planning and technical reviews.
• Act as a technical subject matter expert.

Required Qualifications

Education

Bachelor's degree in Computer Science, Software Engineering, Information Technology or related field.

Experience

• 5+ years of professional software development experience.
• Proven experience in full software development lifecycle (SDLC).
• Experience working in Agile/Scrum environments.

Technical Skills (Required)

Expert Level

• Java 17 + Java Swing
• JavaScript (ES6+)
• PHP
• HTML5
• CSS3
• PostgreSQL

Intermediate / Good Working Knowledge

• C++
• C#

Additional Technical Competencies

• REST API design and development
• SQL query optimization
• Git version control
• Object-Oriented Programming (OOP)
• Design patterns and software architecture principles
• Application debugging and performance optimization
• Unit and integration testing Preferred Qualifications
• Experience with modern JavaScript frameworks such as React, Angular, or Vue.js.
• Experience with Linux-based deployment environments.
• Familiarity with Docker and containerized applications.
• Understanding of CI/CD pipelines.
• Experience integrating desktop and web applications.
• Knowledge of cloud platforms such as Azure or AWS.
• Experience working with legacy systems modernization.

Soft Skills

• Strong analytical and problem-solving abilities.
• Excellent communication and interpersonal skills.
• Ability to work independently and as part of a team.
• Strong ownership and accountability mindset.
• Ability to mentor and lead technical discussions.
• Adaptability and willingness to learn new technologies. Success Metrics
• Deliver high-quality software on schedule.
• Maintain low defect rates and high code quality standards.
• Improve application performance, reliability, and scalability.
• Contribute to architectural improvements and technical innovation.
• Provide leadership and mentorship within the development team.

Nice-to-Have Experience

• Medical, telecommunications, industrial automation, or enterprise software domains.
• Legacy desktop application maintenance and modernization.
• Multi-tier and client-server architectures.
• Cross-platform development involving Java, PHP, C++, and C# ecosystems.

This profile would fit a senior engineer capable of owning both legacy desktop applications (Java Swing) and modern web systems (PHP/JavaScript/PostgreSQL) while supporting integrations and components developed in C++ and C#.

Join Us

At Ascom, we believe recruitment is a two-way decision.

We are not only looking for someone to join us — we are looking for someone who also chooses us as their next employer.

If you are looking for a role where you can make an impact, work with modern technologies, and contribute to global operations — we would love to hear from you.