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 cutting-edge 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 leading the automation of conversations to make life easier for 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 - Senior Backend Engineer (Voice)

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

• Deliver Impactful Software Solutions – Develop and deploy high-quality software that meets customer needs with speed and efficiency.
• Drive Excellence in Architecture & Code – Design best-in-class software, architecture, and code solutions while continuously seeking ways to enhance design and implementation.
• Maintain a Secure & Reliable Codebase – Ensure robust testing, security, and stability across all developments.
• Optimize Performance – Profile and benchmark the codebase to identify and eliminate bottlenecks, ensuring optimal performance.
• Ensure Operational Excellence – Implement monitoring, logging, and end-to-end testing to maintain high reliability and system health.
• Mentor & Guide – Provide technical leadership and mentorship to other engineers, fostering a culture of growth and collaboration.
• Embrace "You-Build-It-You-Run-It" – Take full ownership of your work, ensuring smooth operation and continuous improvements in both the team and the wider organization.
• Proactively Improve & Automate – Continuously refine processes, generate new ideas, and implement automation to simplify day-to-day workflows and boost efficiency.

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 Backend Developer – At least 5 years of hands-on experience in backend software development, building scalable and high-performance applications.
• Kubernetes & Containerization – Over 2 years of experience deploying, running, and monitoring containerized applications in production using Kubernetes.
• Expert in Node.js & TypeScript – Deep expertise in backend development using Node.js and TypeScript, following best practices for maintainability and performance.
• Real-Time Communication Specialist – Strong experience with real-time communication protocols like FreeSWITCH, handling audio, video, text, and other media streams.
• Speech-to-Text & Text-to-Speech – Practical experience integrating Speech-to-Text and Text-to-Speech APIs from various providers.
• Database Proficiency – Hands-on experience with relational and NoSQL databases such as PostgreSQL, MySQL, and MongoDB.
• Automated Testing Expertise – Skilled in designing, implementing, and improving automated testing strategies to ensure software reliability.
• Adaptable & Growth-Oriented – Open to learning new programming languages and continuously improving technical skills.
• Strong Communication & Mentorship – Excellent ability to present new solutions, collaborate effectively within the team, and mentor junior engineers.
• Independent & Collaborative – Capable of working autonomously across multiple codebases while contributing high-quality features in a team-driven environment.

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.