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Sigma Software
Sigma Software

Senior Backend Engineer

Location

Remote restrictions apply
See all remote locations

Salary Estimate

N/AIconOpenNewWindows

Seniority

Senior

Tech stacks

Database
Amazon
Security software
+29

Permanent role
a month ago
Apply now

Job Description

  • 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

Qualifications

  • 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
  • Strong problem-solving and communication skills
  • Upper-Intermediate level of English

WILL BE A PLUS

  • Background in Data Engineering
  • Experience with Knowledge Graphs and graph-based semantic modeling
  • Familiarity with MBSE or SysML environments
  • Experience supporting air-gapped or classified environments
  • Experience with vector databases and embedding pipelines
  • Experience with Kubernetes and cloud platforms such as AWS, GCP, or Azure

Additional Information

PERSONAL PROFILE

  • Analytical mindset with strong problem-solving skills
  • Ability to work independently and in a distributed team
  • Adaptability to secure and classified environments
  • Strong communication and collaboration abilities
  • Passion for AI-driven engineering solutions

About Sigma Software

👥1001-5000
📍Kiev, Kyyivs'ka Oblast', Ukraine
🔗Website

Sigma Software Service

Sigma Software product / service
Sigma Software product / service
Sigma Software product / service
Sigma Software product / service
Sigma Software product / service

How does Sigma Software work?

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

Company culture

CONTINUOUS EDUCATION

We are constantly investing in an environment where everyone can realize their potential, and try something new: domains, technologies, and projects.

INSTITUTE OF MENTORSHIP

We are a team of in-house experts’ team, with a strong mentorship culture, so a specialist is not limited to one project.

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