Job Closed

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Sigma Software Group logo
Sigma Software Group

We support enterprises, product houses, and startups with custom software solutions development and IT consulting.

Senior Backend Engineer

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1,001-5,000Since 2002H1B No SponsorCompany SiteLinkedIn

Location

Poland

Posted

64 days ago

Salary

0

Seniority

Senior

Bachelor Degree5 yrs expEnglishApacheCloudETLRustScalaSparkGo

Job Description

Senior Backend Engineer

Sigma Software Group

• Design and develop scalable AI-powered backend systems for SysML-based engineering environments • Build and maintain distributed data ingestion and ETL pipelines for large-scale engineering artifacts and technical documentation • Develop and optimize LLM-powered workflows for metadata extraction, semantic analysis, and entity resolution • Implement AI agents and multi-agent orchestration workflows • Design and improve RAG-based architectures and semantic retrieval pipelines • Develop graph-based knowledge representation and traceability analysis solutions • Work with graph databases, graph processing libraries, and semantic relationship modeling • Build and optimize distributed data processing workflows using Apache Spark • Collaborate with cross-functional engineering teams to integrate AI capabilities into platform services • Design scalable and high-performance APIs and backend services • Improve system reliability, scalability, observability, and performance across distributed environments • Participate in architecture discussions and technical decision-making processes • Contribute to cloud-native infrastructure and deployment workflows • Support deployments in secure, air-gapped, or classified environments when required • Create and maintain technical documentation and engineering best practices

Job Requirements

  • At least 5 years of commercial experience in software engineering, Data Engineering, or AI systems development
  • Strong production experience with Go, Rust, or Scala
  • Hands-on experience building distributed and scalable systems
  • Practical experience with LLM-based applications and AI integrations
  • Experience building AI agents and multi-agent systems
  • Strong understanding of RAG architectures and semantic retrieval workflows
  • Hands-on experience with graph technologies, graph libraries, or graph databases
  • Experience with Apache Spark and distributed data processing
  • Strong understanding of ETL pipelines and large-scale data ingestion workflows
  • Experience with cloud-native infrastructure and distributed environments
  • Practical experience with backend platform development and API integrations
  • Good understanding of semantic search, entity resolution, and metadata extraction
  • Experience working with highly scalable and high-performance systems

Benefits

  • Flexible work arrangements
  • Professional development opportunities

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