Experienced Backend Developer

TN Germany; Berlin; Vor Ort; EUR 60.000 - 100.000; Vollzeit

Zusammenfassung

Ein aufstrebendes Unternehmen in Berlin sucht leidenschaftliche Entwickler, die bereit sind, die Zukunft der Sprach-KI zu gestalten. In dieser spannenden Rolle entwerfen Sie APIs, verwalten Datenbanken und optimieren Cloud-Infrastrukturen. Sie arbeiten in einem dynamischen Team, das Innovation und Zusammenarbeit schätzt. Mit einem starken Fokus auf Autonomie und Verantwortung haben Sie die Möglichkeit, an bahnbrechenden Projekten zu arbeiten und Ihre Karriere in einem schnell wachsenden Startup zu gestalten. Wenn Sie bereit sind, den nächsten Schritt in Ihrer beruflichen Laufbahn zu machen, freuen wir uns auf Ihre Bewerbung!

Leistungen

Wettbewerbsfähiges Gehalt

Aktienoptionen

Lernmöglichkeiten

Dynamische Startup-Kultur

Berufliche Entwicklung

Qualifikationen

• 4+ Jahre Erfahrung in einem schnelllebigen Startup-Umfeld.
• Experte in Python und FastAPI mit modernem API-Design.

Aufgaben

• Entwerfen und Implementieren von RESTful und eventgesteuerten Microservices.
• Optimierung und Verwaltung von PostgreSQL-Schemas und -Abfragen.

Kenntnisse

Python

FastAPI

PostgreSQL

Docker

Kubernetes

CI/CD

Testing (pytest, unittest)

Tools

GitHub Actions

Terraform

Prometheus

Grafana

Jobbeschreibung

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At ai|coustics, we’re building the quality layer for Voice AI. Our AI-powered speech technology turns any audio - live or recorded - into studio-quality output in real time. Since our launch, we’ve built a community of over 500,000 users, processed more than 2 million audio files, and signed contracts with leading audio brands like Elgato, Radio France International, and Deutsche Welle. We recently closed our 5M Seed round with investors like Partech, Connect Ventures, Inovia Capital, FOV Ventures, Intuition, and Arc Investors.

We’re at a pivotal moment of growth and product innovation — and we’re looking for ambitious builders to join us on this journey. If you’re excited about defining a new category in Voice AI and shaping the future of audio, we’d love to meet you.

Who we are

We’re an in-person team of audio and technology enthusiasts based in Berlin. We love being in the office, hanging out together, and learning from each other every day.

We ship fast. All of our work is novel and cutting-edge, and execution speed is paramount. Our culture thrives on autonomy, ownership, and open collaboration — where the best ideas win, regardless of origin. We support each other through an open and inclusive culture focused on providing resources for success.

The ideal start date for this position is May 15, 2025.

Tasks

• Design & Implement APIs: Architect, build, and maintain RESTful and event-driven microservices using FastAPI.
• Database Management: Optimize and maintain PostgreSQL schemas, queries, and migrations for high throughput and reliability.
• Cloud Infrastructure: Deploy, monitor, and scale services on AWS (EKS, RDS, S3) following best practices.
• Containerization & Orchestration: Build and orchestrate Docker containers with Kubernetes (EKS) to ensure seamless deployments.
• CI/CD Pipelines: Implement and maintain continuous integration and delivery workflows using GitHub Actions.
• Testing & Quality: Write unit, integration, stress, and end-to-end tests to uphold code quality and reliability. Collaborate on software architecture decisions, especially around microservices, event streaming, and system observability.

Requirements

Must-Have Qualifications

• Startup Experience: 4+ years in a high-velocity startup or product-centric environment, shipping features end-to-end.
• Languages & Frameworks: Expert in Python and FastAPI, with a strong grasp of modern API design.
• Databases: Proficient with PostgreSQL (indexes, migrations, tuning) and familiarity with at least one NoSQL store.
• DevOps Tools: Docker, Kubernetes, and CI/CD toolchains.
• Testing Mindset: Deep understanding of the testing pyramid and test frameworks (pytest, unittest).
• Software Architecture: Proven track record designing scalable, fault-tolerant microservices.

Nice-to-Have Qualifications

• Infrastructure as Code: Terraform, Helm.
• GitHub Actions and shell scripting for automation.
• Observability stacks: Prometheus, Grafana, ELK/EFK.
• Compensation and Benefits: Enjoy a competitive salary package and additional benefits.
• Stock Options: Early-stage employees receive stock options, enabling you to share in the company’s success.
• Learning Opportunities: Collaborate with a team of accomplished audio and ML experts, with ample room for professional growth.
• Startup Culture: Immerse yourself in a dynamic, fast-paced environment with passionate and collaborative colleagues.
• Professional Growth: Shape your career path as the company expands.
• High Impact: Join a groundbreaking startup at a pivotal growth stage, making a real difference in how people experience audio.
• Contribute to the Future: Help define the landscape of generative audio and speech enhancement technology.

If you are ready to lead the charge in revolutionizing the audio experience and drive our startup to new heights, we would love to hear from you. Apply today to join the ai-coustics team!

ai|coustics is a Berlin-based startup pioneering Generative Audio AI technology. We're on a mission to redefine the way people experience speech quality and intelligibility in real-time communication and media content by providing solutions to our millions of users across various verticals.