Senior Backend Engineer – Graph & API Development
Location: Remote
Contract Type: B2B
English Level: C1 (Advanced)
Compensation: Gross (TBD)
Holidays: 10 public holidays (vacation & sick days unpaid)
Role Overview:
We are looking for an experienced Senior Backend Engineer to design, develop, and maintain APIs and backend services that support graph data ingestion, SPARQL queries, and user-facing analytics. You will ensure the scalable integration of RDF datasets into GraphDB and other enterprise systems, contributing to our data-driven platform’s performance, reliability, and scalability.
Key Responsibilities:
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Design, develop, and maintain backend services and APIs using modern frameworks (FastAPI, Node.js, Flask).
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Integrate and manage graph databases such as GraphDB, Neo4j, and Blazegraph.
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Optimize SPARQL queries and manage SPARQL endpoints for high-performance data access.
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Implement scalable data ingestion pipelines, monitoring, and QA automation.
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Contribute to the architecture and design of microservices-based systems.
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Collaborate with frontend, data, and DevOps teams to deliver high-quality software solutions.
Required Qualifications:
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7+ years of professional software development experience.
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5+ years hands-on experience with backend frameworks such as FastAPI, Node.js, and Flask.
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Strong experience with graph databases (GraphDB, Neo4j, Blazegraph).
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Expertise in SPARQL query optimization and endpoint management.
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Solid understanding of API design, microservices architecture, and backend best practices.
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Experience with data ingestion pipelines, monitoring, and automated QA processes.
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Advanced English (C1) for communication in a remote, international environment.
Preferred Skills:
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Experience with RDF datasets and semantic web technologies.
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Familiarity with cloud platforms and containerized environments (Docker, Kubernetes).
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Knowledge of CI/CD pipelines and DevOps practices.
What We Offer:
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Fully remote work with flexible hours.
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Collaborative and innovative international team environment.
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Opportunity to work on cutting-edge graph data and analytics projects.
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B2B contract with competitive compensation.