MR
MassMutual RomaniaJava Developer – Streaming
Java Developer at MassMutual Romania, focusing on Kafka integrations and cloud platform environments. Collaborating with global teams to enhance streaming services in Romania's tech sector.
About the role
- Design, build, and scale backend systems that power scientific and geospatial products
- Build and maintain public APIs in Python, including versioning and documentation
- Develop and maintain a robust data access layer (DAL) and well-structured data models
- Process large, complex datasets and geospatial information with Python data libraries
- Collaborate closely with science and product teams to turn requirements into reliable production services
- Occasionally integrate existing ML models into services or pipelines (integration-oriented)
- Ensure performance, correctness, cost efficiency, and scalability of geospatial data pipelines and services
- Work in Agile sprints, participate in daily standups, and deliver backlog items
- Contribute beyond code: documentation, tests, deployments, release notes, and demos
- Participate in initiatives focused on scaling pipeline capacity and improving non-functional characteristics
Requirements
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field
- 3+ years of experience building production-grade Python services with a focus on public APIs, data processing, performance, and scalability
- Strong experience with Python web frameworks and API tooling, such as FastAPI or Flask
- Schema validation experience (Pydantic)
- Solid understanding of data modeling and a clean, maintainable DAL (e.g., SQLAlchemy), including migrations and versioned schemas
- Proficiency with Python data libraries such as NumPy and pandas
- Strong understanding of engineering principles and practices: separation of concerns, encapsulation, code reviews, CI, observability, and layered testing strategies
- Autonomous but collaborative working style; ability to own meaningful components
- AWS experience (Lambda, ECS, S3, RDS, Batch, Step Functions) (desirable)
- Geospatial experience (GeoJSON, GeoPandas, Shapely; spatial indexing and projections) (desirable)
- Proficiency with database technologies: PostgreSQL/PostGIS, MySQL, MongoDB, DynamoDB (desirable)
- Experience with TypeScript and modern build tooling (desirable)
- Right to work in the UK / sponsorship status (application form requests this)
Benefits
- £50K – £60K base salary
- Offers Equity
- Offers Bonus
- Access competitive pay, equity, and meaningful benefits
- Be part of a high-growth startup from the ground up
- Apply AI and data to global nature-based challenges
- Build mastery and push the boundaries of your craft
- Learn from a diverse, cross-functional team
- Support for accommodations during the application process
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