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Backend developer • hamburg

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Senior Backend Developer

Senior Backend Developer

Digital Blast GmbHHamburg, Germany
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SaaS that connects creators with their fans through WhatsApp and SMS.We empower influencers and creators to build meaningful fan relationships, monetize exclusive content, and foster genuine engage...Mehr anzeigenZuletzt aktualisiert: vor 14 Tagen
  • Gesponsert
Senior Backend Developer – SAP S / 4HANA Utilities (a •)

Senior Backend Developer – SAP S / 4HANA Utilities (a •)

Hamburger Energienetze GmbHHamburg, DE
Du berätst und betreust unsere S / 4HANA Utilities Systeme rund um die Prozesse des Messstellenbetriebs, steuerbare Ressourcen und intelligenter Messsysteme. Bei der Analyse, Optimierung und Weiterent...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
(Senior) Backend Developer (f / m / d)

(Senior) Backend Developer (f / m / d)

justtrackHamburg, Germany
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As a Senior Go Backend Developer you will join a team of highly committed developers, further developing our tracking platform justtrack by bringing in a lot of own ideas.SaaS business that provide...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Senior Go Backend Developer (f / m / d)

Senior Go Backend Developer (f / m / d)

adjoe GmbHHamburg, Germany
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Bertelsmann, and a highly motivated workforce to be reckoned with.Meet Your Team : Anti-Fraud Solutions.We've built sophisticated systems that actively prevent fraud from impacting our partners' bus...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Senior Backend Developer (m / w / d)

Senior Backend Developer (m / w / d)

fischerAppeltHamburg Sternschanze
Du hast Lust auf kreative und herausfordernde Projekte? Dann bist du als erfahrene : r Backend Entwickler : in (m / w / d) in unserem Team an einem unserer Standorte in Hamburg oder Berlin genau richtig.Fo...Mehr anzeigenZuletzt aktualisiert: vor 22 Tagen
Backend Developer Java (m / w / d)

Backend Developer Java (m / w / d)

Sopra SteriaHamburg, DE
Du entwickelst nach dem Clean Code Ansatz auf Basis automatisierter Tests.Du hast Deinen Schwerpunkt in der Backend-Entwicklung mit Java, hast aber auch Interesse Deinen Horizont zu erweitern.Du an...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
BACKEND.NET / C# DEVELOPER

BACKEND.NET / C# DEVELOPER

Cluster ReplyHamburg
Software-Lösungen für unsere internationalen Kunden auf Basis des.Du hast einen klaren Fokus auf Architektur, Design, Testing und Implementierung nach modernsten Standards.Clean-Code-Prinzipien, cl...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Senior Backend Cloud Developer

Senior Backend Cloud Developer

HDI AGHamburg, DE
Stellenbeschreibung Senior Backend Cloud Developer.Entwicklung, Optimierung und Pflege leistungsfähiger Backend-Services für Cloud-Plattformen im agilen Team. Integration und Management von Schnitts...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Backend-Entwickler / Technologieoffener Fullstack Developer (m / w / d)

Backend-Entwickler / Technologieoffener Fullstack Developer (m / w / d)

Audare GmbHHamburg, Germany
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Fokus Python & APIs – aber offen für neue Technologien.Wir suchen keinen „klassischen Abarbeiter“, sondern einen modernen Entwickler, der programmieren kann, Technologien versteht und Lust hat...Mehr anzeigenZuletzt aktualisiert: vor 18 Tagen
(Senior) Backend Developer (f / m / d)

(Senior) Backend Developer (f / m / d)

AppLike GroupHamburg
As a Senior Go Backend Developer you will join a team of highly committed developers, further developing our tracking platform justtrack by bringing in a lot of own ideas.SaaS business that provide...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Senior Backend Developer

Senior Backend Developer

ConsortiaHamburg
Consortia have recently partnered with a B2B SaaS company based in Hamburg.They build fully digital Software-as-Service (SaaS) solutions for insurance claims processing by creating a unique claims ...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
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Java Backend Developer (m / w / d)

Java Backend Developer (m / w / d)

Techniker KrankenkasseBönningstedt
Hamburg | Vollzeit | Geschäftsbereich IT | Unbefristet Java Backend Developer (m / w / d) Als Die Techniker gestalten wir die Krankenkasse von morgen. Hierfür bauen wir das Onlineangebot für unse...Mehr anzeigenZuletzt aktualisiert: vor 19 Tagen
Fullstack Engineer

Fullstack Engineer

Alexander Daniels GlobalGermany, Hamburg, Hamburg
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Full Stack Software Developer - Industrial AM.We are supporting our client in the search for a Full Stack Software Developer to join their growing team. Our client is an innovative startup in the in...Mehr anzeigenZuletzt aktualisiert: vor 11 Tagen
TYPO3 Entwickler / Programmierer

TYPO3 Entwickler / Programmierer

Homepage Helden GmbHHamburg, Germany
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Wir möchten Unternehmern befähigen mit ihrer Botschaft, ihren Produkten und Dienstleistungen die richtigen Menschen zu erreichen. Die eigene Online-Präsenz ist nicht nur ein Mittel, um sich nach auß...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Senior Backend Developer (mfd)

Senior Backend Developer (mfd)

jobs.beyonnex.ioHamburg, Hamburg, Germany
We support our customers in making buildings more climate-friendly more comfortable and more affordable - with connected real estate simple products and high processing and service quality.We provi...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
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Senior.NET Backend Developer (m / w / d) - Augsburg

Senior.NET Backend Developer (m / w / d) - Augsburg

Optimus SearchHamburg, DE
NET Backend Developer (m / w / d) - AugsburgShape the future of the housing industry with us and your own!Tasks • You will work in national projects and design and implement individual software solution...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Backend Developer - ERP

Backend Developer - ERP

zellerfeldHamburg, Hamburg, DE
We are seeking an experienced and motivated SAP S / 4HANA Backend Developer to join our dynamic IT team.In this role, you'll be responsible for designing, developing, and maintaining robust and scala...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Senior Backend Developer (wmd)

Senior Backend Developer (wmd)

Create Your Own CareerHamburg, Hamburg, Germany
Du bist proaktives Mitglied deines agilen interdisziplinären Entwicklungsteams und arbeitest eng zusammen mit Product DevOps und weiteren Stakeholdern. Du konzipierst und setzt Neu- und Weiterentwic...Mehr anzeigenZuletzt aktualisiert: vor 1 Tag
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Senior Backend Developer

Senior Backend Developer

Digital Blast GmbHHamburg, Germany
Vor 14 Tagen
Anstellungsart
  • Quick Apply
Stellenbeschreibung

fanblast is a fast-growing SaaS that connects creators with their fans through WhatsApp and SMS. We empower influencers and creators to build meaningful fan relationships, monetize exclusive content, and foster genuine engagement. Our product focuses on ease of use, seamless monetization, and scalability, transforming the way creators connect with their audience. With a collaborative, agile, and creative work culture, each team member's input helps shape our innovative product. Join fanblast, where your work will help define the future of creator-fan interactions and bring real value to influencers across various industries, including entertainment, social media, and more.

We are seeking an experienced Senior Backend Developer to join our engineering team. You will be responsible for designing, developing, and maintaining scalable backend services that power our tool. This role involves working with a modern microservices architecture, integrating with third-party services, and ensuring high performance and reliability of our backend systems.

Aufgaben

Responsibilities

Design, develop, and maintain robust, scalable backend APIs and microservices

  • Architect and implement efficient database schemas and queries for PostgreSQL
  • Implement caching strategies using Redis to optimize application performance
  • Build and maintain message queue integrations using RabbitMQ and NATS
  • Integrate with third-party payment processors (Stripe, Solidgate, PayPal)
  • Develop 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 maintain high code quality standards
  • Debug and resolve production issues in a timely manner
  • Optimize application performance and scalability
  • Design and implement RESTful APIs following best practices
  • Work with Docker and containerized applications
  • Implement proper error handling, logging, and monitoring

Qualifikation

Required Technical Skills

Core Technologies

  • Node.js (v24+) >

    • Advanced proficiency (Building high-performance, scalable applications)

  • TypeScript >

    • Strong experience (Type-safe development and large-scale application maintenance)

  • Express.js >

    • Strong experience (Building RESTful APIs and web services)

  • JavaScript (ES6+) >

    • Strong experience (Modern JavaScript features and best practices)

    Databases & Data Storage

  • PostgreSQL >

    • Database design, query optimization, migrations

  • Redis >

    • Caching strategies, session management, pub / sub

  • Couchbase >

    • NoSQL / document database operations

    Message Queues & Event Systems

  • RabbitMQ >

    • Message queue implementation and management

  • NATS >

    • Event-driven architecture and messaging

    Infrastructure & DevOps

  • Docker >

    • Containerization and Docker Compose

  • Microservices Architecture >

    • Designing and maintaining service-oriented systems

  • Nginx >

    • Reverse proxy configuration and load balancing

  • Linux / Unix >

    • Server administration and deployment

    Third-Party Integrations

  • Payment Processing (Stripe, Solidgate, PayPal integration experience)
  • Messaging Platforms (Telegram Bot API, WhatsApp integration)
  • Cloud Services (AWS SDK, Superbase & Betterstack)
  • API Integration (RESTful APIs, webhooks, authentication)

    • Development Tools & Practices

  • Git (Version control and collaborative development)
  • Yarn / NPM (Package management)
  • Code Quality (ESLint, Prettier, code review practices)
  • Testing (Unit testing, integration testing)
  • API Documentation (OpenAPI / Swagger, API design best practices)

    • Preferred Qualifications

  • 5+ years of professional backend development experience
  • Experience with microservices architecture and service communication patterns
  • Strong understanding of database design principles and query optimization
  • Experience with payment gateway integrations and PCI compliance considerations
  • Knowledge of 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 message broker patterns (pub / sub, queues)
  • Understanding of event sourcing and CQRS patterns
  • Experience with performance testing and optimization
  • Knowledge of internationalization (i18n) implementation
  • Experience with WebRTC or real-time communication protocols

    • Benefits

    Why you should join us

  • Great workplace in the center of Hamburg (hybrid : 3 days per week in office).
  • Flat hierarchies, fair compensation & flexible working hours
  • You'll be part of an ambitious team that values speed, persistence and results.
  • You'll work with top creators, helping them transform how they connect and monetize.
  • fanblast is at the center of the creator economy boom — a $250B+ market that's reshaping culture.
  • We're a startup with momentum : lean, ambitious, and ready to scale

    • Providing interactive experiences to the world. In all aspects of entertainment.