BLAST

Senior Backend Developer

BLAST

full-time

Posted on:

Location Type: Hybrid

Location: Hamburg • Germany

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Job Level

Senior

Tech Stack

DockerGraphQLJavaScriptKubernetesMicroservicesPostgresRedisTypeScript

About the role

  • 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.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
backend developmentAPI designmicroservices architecturePostgreSQLTypeScriptJavaScriptRedisDockerpayment gateway integrationmedia processing
Soft Skills
collaborationcode reviewproblem-solvingcommunicationattention to detail