Hybrid Senior Backend Developer

at Coachwhisperer

• Job title: Senior Backend Developer
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Cloud, Docker, JavaScript, Kubernetes, Microservices, NoSQL, Postgres, Python, Rust, SQL, Swift, Go
• Location requirements: Hybrid, Jena, Germany

About the role

• Senior Backend Developer in a growing company passionate about sports. Responsible for backend services and leading team communication with a focus on structured documentation.

Responsibilities

• Influential role within the team, making far-sighted decisions, maintaining strong internal team communication and bringing all team members along with your proposals
• Clear communication with management about options, deadlines and, when necessary, what is not feasible and why
• Structured documentation of your work and product-related documents
• Architecture and development of backend services

Requirements

• You hold a degree in Computer Science or a related field and have at least 7 years of experience in modern software development practices
• High code quality standards and implement them within the team
• You write and run developer tests yourself and participate in peer review practices
• You translate verbal product requirements into an efficient, modular service architecture with high-performance, scalable interfaces
• Security by design, data minimization, and testability are core attributes of your architecture and software
• You manage component and system versioning and consequently take the lead in the release process
• You have experience with voice transmission and processing as well as using and training speech models via cloud interfaces and locally
• Testability is automation-based and you have experience in designing, building, and operating test frameworks
• Your German and English communication skills are at C1/C2 level
• Your skills include database development, data model design, SQL programming (preferably PostgreSQL) and NoSQL databases, backup strategies, and homogeneous and heterogeneous migrations
• Cloud SQL / cloud services (preferably Google Cloud technologies), Google Compute Engine, firewalling, VPC networking, identity and access management, Cloud Storage / S3
• API development, cloud-hosted APIs, protection techniques for public APIs, authentication, authorization, request/response and bidirectional APIs, OpenAPI, Swagger, certificate management
• Container technologies: Docker, Docker Compose, basic Kubernetes knowledge, microservices and scaling
• Protocols: TLS, HTTP, WebSocket, message broker types and common protocols, protocols for voice transmission, compression algorithms, serialization (JSON, XML, Protobuf)
• Programming languages: object-oriented programming - Go, C, C++, Python, JavaScript; optionally Swift, Rust
• CI/CD, GitLab CI toolchain, organization and configuration, SSDL and use of necessary tools, versioning and release process

Benefits

• A challenging and varied role in a growing company
• A motivated and dynamic team
• Attractive bonus opportunities
• Flexible working hours and the option to work from home
• Modern work environment with flat hierarchies
• Regular team events
• Tickets to sporting events in Jena
• Individual training and development programs
• Access to international trade shows / industry-specific conferences
• Coverage of specialized literature costs