Senior Backend Developer
Workplace: Stockholm, Sverige
Expires: August 15, 2025
We are seeking an experienced Senior Backend Developer with at least 5 years of hands-on experience to join our talented team. The candidate will have a strong background in developing and maintaining robust systems, excellent problem-solving skills, and thrive in a fast-paced, collaborative environment. A BSc in Computer Science and certification in Data Engineering with Google Cloud Specialization are required. Desirable skills include Cloud & Web Development, Distributed Systems, Blockchain and Cryptocurrency, and Machine Learning & Data Analytics.
Main requirements:
- Minimum 5 years of hands-on experience in backend development
- BSc in Computer Science
- Certification in Data Engineering with Google Cloud Specialization
Responsibilities:
- Develop and maintain robust backend systems
- Collaborate within the team to solve complex problems and deliver quality solutions
Required hard skills:
- Go (echo, amqp, pgx, btcd)
- C++ (Millennium Stack, Cmake)
- Python (FAST API, asyncio)
- JavaScript (Node.js with express)
- Cloud services: GCP AppEngine, ComputeEngine, Data pipelining, BigQuery, FirebaseAuth, Firestore, Cloud Functions
- Database management: Postgres, MySQL, Firestore, MongoDB, Oracle
- Microservices with Kubernetes, gRPC, ReST, RabbitMQ
- Credit card and bank integrations
- Bitcoin transactions and esplora API
Recommended hard skills:
- Flutter
- ReactJs
- Android SDK/NDK (Java, C++)
- Digital Ocean cloud services
- Distributed systems
- Blockchain and Cryptocurrency technologies
- Machine Learning and Data Analytics
Soft skills:
- Excellent problem-solving skills
- Ability to thrive in a fast-paced and collaborative environment
Coding languages:
- Go
- C++
- Python
- JavaScript
- Java
Frameworks:
- Echo (Go)
- FAST API (Python)
- Express (Node.js)
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