Senior Full-stack Software Engineer

About Cognigy

Cognigy is transforming the customer service industry with the most advanced AI Agent platform for enterprise contact centers. Its award-winning solution, Cognigy.AI, empowers enterprises to deliver instant, hyper-personalized, multilingual service on any channel. By integrating Generative and Conversational AI to create Agentic AI, Cognigy delivers AI Agents that redefine customer experiences, drive satisfaction, and support contact center employees in real-time.

Our skilled #CognigyCrew are the people behind our leading technology and we are now looking for more talented people to join our global team.

Why you'll love working at Cognigy - Our promise to you

We empower our people to be successful as part of a diverse, passionate and respectful team who are proud to be enabling customer and employee service that is loved by everyone.

We do this by challenging each other to succeed and being enabled to do our best work. Encouraging and supporting growth is at the heart of our success, founded on a culture of mutual respect and trust – always It's no wonder that the values that inspire and drive our #CognigyCrew are our 4Ts - Team, Trust, Transparency, Technology.

Your new role - Full Stack Software Engineer

Job location: On-site in Düsseldorf or remote in Germany

You will be welcomed into our Engineering department, which is divided into cross-functional, verticalized development teams, who are focused on delivering continuous improvements, features and developing new products. To support the delivery process and stability of our products, we can also count on our Product Support team, QA team, and SRE team who, alongside our Product and People team, Director/Architect and VP Engineering, are constantly looking to overcome new challenges, to innovate, and to ensure the success of our products and satisfaction of our customers.

Your responsibilities will include

• Build Impactful Software – Develop and deliver high-quality software solutions that efficiently address customer needs.
• Write Clean, Maintainable Code – Create well-structured, scalable, and maintainable code following best practices.
• Ensure Security & Reliability – Keep the codebase robust, tested, and secure, proactively addressing vulnerabilities.
• Optimize Performance – Profile and benchmark the codebase to identify and eliminate bottlenecks, ensuring efficiency.
• Oversee User Interface – Contribute to UI oversight, ensuring seamless and user-friendly experiences.
• Drive Operational Excellence – Implement best practices for monitoring, logging, and end-to-end testing to maintain stability and reliability.
• Mentor & Lead – Provide technical guidance and mentorship to other developers, fostering collaboration and professional growth.

Growth Potential

At Cognigy we are committed to your professional growth. This role offers significant opportunities for career development, including access to ongoing training, and involvement in high-impact projects allowing you to showcase and advance your unique skills and experience.

Requirements

About you

• Experienced Full-Stack Developer – Several years of hands-on experience in full-stack software development, building scalable and efficient applications.
• Containerization & Debugging – Proficient in working with containers and debugging containerized applications.
• Linux Proficiency – Comfortable working in a Linux-based environment.
• Frontend Expertise – Strong experience with modern frontend frameworks such as or , including state management libraries like Redux and CSS-in-JS solutions.
• Backend Development – Skilled in building backend applications using frameworks like or Ruby on Rails.
• Design Mindset – A keen eye for good design and UI/UX principles—padding and margin aren't just CSS properties to you.
• Database Knowledge – Familiarity with MongoDB or similar NoSQL databases; SQL experience is a plus.
• Real-Time Communication – Experience working with real-time communication protocols such as WebSocket or WebRTC.
• High-Quality Code & Testing – Passion for writing clean, well-structured, and thoroughly tested code.
• Adaptable & Growth-Oriented – Open to working with various programming languages and continuously learning new technologies.
• Strong Communicator – Ability to present new ideas and concepts clearly, including to management and stakeholders.
• Independent & Collaborative – Capable of working autonomously while thriving in a team-oriented environment.
• Incident Response & Decision Making – You stay calm under pressure, make decisions with urgency when necessary, and are comfortable being on call for emergencies when needed.

Benefits

Life at Cognigy - What we offer you

We are an ambitious and international tech company with a great culture, and we make sure that everyone feels welcome. Our excellent benefits make us a fantastic place to work - these include

• Attractive and performance-oriented salary
• Company Pension Scheme
• 25 days paid leave, plus 5 floating days, plus public holidays
• Unique opportunity to help build and shape the company, with little hierarchy
• Flexible working options
• Colleague recognition, reward and celebration events
• Global Employee Assistance Program
• ClassPass membership, giving you access to a variety of fitness and wellness experiences
• Ongoing learning and development opportunities, including Udemy
• One paid 'Giving Back Day' each year, so you can volunteer for a charity or community activity of your choice
• Subscription to the Calm app for you plus five friends/family members, giving you access to guided meditation, sleep stories, music, masterclasses, and much more

Equal Opportunity Employer Statement - Cognigy does not discriminate on the basis of race, sex, color, religion, age, national origin, marital status, disability, veteran status, genetic information, sexual orientation, gender identity or any other reason prohibited by law in provision of employment opportunities and benefits.