Hybrid Senior Backend Developer

at BLAST

• Job title: Senior Backend Developer
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Docker, GraphQL, JavaScript, Kubernetes, Microservices, Postgres, Redis, TypeScript
• Location requirements: Hybrid, Hamburg, Germany

About the role

• Senior Backend Developer designing and maintaining scalable backend services at fanblast. Collaborating in an agile environment to enhance connections between creators and fans.

Responsibilities

• Design, develop, and maintain robust, scalable backend APIs and microservices.
• Design and implement efficient database schemas and queries for PostgreSQL.
• Implement caching strategies using Redis to optimize application performance.
• Build and maintain integrations with messaging platforms (Telegram, WhatsApp).
• Implement media processing pipelines and services.
• Write clean, maintainable, and well-documented TypeScript/JavaScript code.
• Collaborate with frontend developers and other team members to deliver features.
• Participate in code reviews and uphold high code quality standards.
• Debug and resolve production issues in a timely manner.
• Optimize application performance and scalability.
• Design and implement RESTful APIs according to best practices.
• Work with Docker and containerized applications.
• Implement proper error handling, logging, and monitoring.

Requirements

• 5+ years of professional experience in backend development.
• Experience with microservices architecture and inter-service communication patterns.
• Strong knowledge of database design principles and query optimization.
• Experience with payment gateway integrations and PCI requirements.
• Familiarity with real-time messaging systems and WebSocket protocols.
• Experience with media processing and file uploads.
• Understanding of security best practices (authentication, authorization, encryption).
• Experience with monitoring, logging, and observability tools.
• Familiarity with CI/CD pipelines and automated deployment processes.
• Experience working in agile development environments.
• Nice to Have: Experience with GraphQL APIs, knowledge of Kubernetes for container orchestration, experience with messaging backend patterns (pub/sub, queues), understanding of Event Sourcing and CQRS patterns, experience with performance testing and optimization, experience implementing internationalization (i18n), experience with WebRTC or real-time communication protocols.

Benefits

• Large workspace in central Hamburg (hybrid: 3 days per week in the office).
• Flat hierarchies, fair compensation & flexible working hours.
• You will be part of an ambitious team that values speed, endurance, and results.
• You will work with top creators who help shape how they connect and monetize.
• fanblast is at the heart of the creator-economy boom — a market worth over $250B that is reshaping culture.
• We are a startup with momentum: lean, ambitious, and ready to scale.