Are you a Senior Backend Engineer passionate about building scalable AI-driven systems? Join us at Sigma Software to work on a cutting-edge platform that transforms how large-scale engineering organizations manage and analyze complex technical data.
This is a remote position with flexible locations across Europe, Ukraine, and LATAM. You will be part of an innovative team leveraging AI, semantic graphs, and distributed processing to deliver impactful solutions.
At Sigma Software, we value expertise, creativity, and collaboration. Why join us? You will work with advanced technologies, contribute to mission-critical projects, and be part of a company recognized for excellence and innovation.
CUSTOMER
Our customer operates in the AdTech industry, delivering advanced technology solutions that optimize advertising performance and audience targeting. While the name is confidential, the organization is known for leveraging cutting-edge AI and data-driven strategies to enhance campaign effectiveness and deliver measurable business impact.
PROJECT
We are developing a next-generation AI-powered Knowledge Base and Gap Analysis platform for SysML-based engineering environments. The system enables large-scale engineering organizations to ingest, structure, analyze, and reason over complex MBSE artifacts and technical documentation. It supports both cloud and secure classified environments, improving traceability, identifying gaps, and enhancing decision-making in mission-critical projects.
- 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
- At least 5 years of commercial experience in software engineering, Data Engineering, or AI systems development
- Experience with at least one statically typed programming language like Java, Rust, Scala or Go.
- 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
- 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 Apache Spark and distributed data processing
- 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
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
Skills Required
- At least 5 years of commercial experience in software engineering, Data Engineering, or AI systems development
- Experience with at least one statically typed programming language like Java, Rust, Scala or Go
- 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 ETL pipelines and large-scale data ingestion workflows
What We Do
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 21 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs. Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts. Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters
