Senior Java Developer
New
N
NetguruFinTech
Workable workplace: remote Workable remote: True Workable locations: Poland Location: Poland Must be based in the European Union B2B – Remote (EU Only)ContractSenior
SalaryUp to 30 EUR per hour
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Job Details
- Languages
- English at C1 level Language: English C1
- Required Skills
- AWSPostgreSQLGCPJavaKotlinMongoDBMySQLAzureScalaDistributed Systems
Requirements
- Strong commercial experience with JVM-based languages such as Java, Scala, or Kotlin
- Solid experience with relational databases, including PostgreSQL and MySQL
- Experience working with NoSQL databases, preferably MongoDB
- Hands-on experience processing and managing large datasets
- Strong knowledge of scalable API design and backend architecture principles
- Experience designing distributed and high-performance systems
- Practical experience building ETL pipelines using standard data processing tools
- Experience with cloud platforms such as AWS, GCP, or Azure
- Strong understanding of performance optimization and low-latency systems
- Experience with database optimization, including indexing, schema design, and performance tuning
- Strong problem-solving and communication skills
- Senior-level mindset with the ability to mentor and support engineering teams
Responsibilities
- Design and build scalable backend systems for processing large volumes of spare parts data
- Develop and maintain robust, high-performance APIs for data integration and access
- Build, optimize, and maintain ETL pipelines for data ingestion and transformation
- Process and manage large datasets in distributed environments
- Optimize system performance, latency, and throughput across backend services
- Improve database performance through indexing, schema design, and query optimization
- Collaborate with product managers, designers, and engineering teams to deliver scalable solutions
- Work closely with stakeholders to define and implement data-driven functionalities
- Ensure high standards of security, reliability, scalability, and maintainability
- Mentor and support other engineers as part of a senior-level engineering role
- Stay up to date with modern backend technologies, architecture patterns, and engineering best practices
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