Sigma Software

Role Description We are looking for a Project Manager to join Sigma Software’s IT Solutions department and lead cross-functional transformation initiatives across the company. In this role, you will coordinate enterprise-level projects focused on process optimization, automation, and adoption of modern digital and AI-driven solutions. You will work in a complex environment with multiple stakeholders, balancing strategic goals with operational delivery while ensuring measurable business value. The position is open in a remote or hybrid format depending on your location. This role offers the opportunity to influence company-wide initiatives, work with modern technologies, and contribute to the adoption of AI-supported approaches across the organization. - Plan, manage, and monitor project execution to ensure delivery on time and within budget - Drive end-to-end project lifecycle management using appropriate delivery methodologies and best practices - Lead cross-functional transformation initiatives involving multiple business units and internal teams - Align business and technology stakeholders around project goals, priorities, and expected outcomes - Identify opportunities for process optimization, automation, and operational efficiency improvements - Promote and support the adoption of AI-driven approaches within project delivery and workflows - Perform risk analysis and proactively manage delivery risks and dependencies - Monitor project KPIs and implement corrective actions when needed - Ensure transparent communication and structured project documentation - Coordinate and support delivery teams, including onboarding and professional growth activities - Contribute to the continuous improvement of delivery processes and project management practices Qualifications - At least 5 years of experience in project management - Proven experience managing cross-functional or transformation initiatives - Experience working in enterprise environments with multiple stakeholders and parallel projects - Strong understanding of project management methodologies and delivery frameworks - Experience collaborating with technical teams and managing IT-related projects - Experience with enterprise digital transformation programs - Experience implementing automation or AI-driven business solutions - Understanding of modern technologies, integrations, and automation approaches - Knowledge of Agile, Scrum, Kanban, or hybrid delivery approaches - Strong risk management and decision-making capabilities - Awareness of AI capabilities and willingness to integrate AI into workflows - Experience with process improvement methodologies - PMP, PRINCE2, Agile, or similar certification - Intermediate English level or higher Benefits - Proactive and ownership-driven mindset - Strong organizational and prioritization skills - Strong communication and stakeholder management skills - Excellent leadership, negotiation, and problem-solving abilities - Ability to work effectively in dynamic environments - Collaborative and team-oriented approach - Strong analytical and strategic thinking - Ability to build trust with stakeholders across different business functions - Continuous improvement mindset and openness to innovation

Role Description We at Sigma Software are looking for a Senior Java Engineer to join an exciting project in the domain of audience segmentation and engagement. This is a remote role open to candidates from Ukraine and Europe, offering the opportunity to work with cutting-edge technologies and high-scale systems. You will be part of a team building a real-time platform that powers communications, personalization, automation, and customer engagement across diverse ecosystems. At Sigma Software, we value innovation, collaboration, and technical excellence. Why join us? You’ll work on challenging tasks, contribute to architectural decisions, and have the freedom to experiment with new technologies while improving data systems at scale. Job Description - Design and implement core components of the audience segmentation platform - Develop and evolve a flexible segment definition language supporting complex targeting scenarios - Build scalable evaluation engines for processing large-scale entity and relationship data - Implement relationship-based audience resolution across multiple entity types - Optimize incremental recomputation for continuous data changes - Create event-driven pipelines for real-time segment accuracy - Ensure governance, auditability, and lifecycle traceability of segments - Design low-latency resolution services for high-scale operations - Develop caching strategies for dynamic segments and snapshots - Optimize system performance, scalability, and operational efficiency - Collaborate with product and engineering teams to define platform capabilities and architecture - Provide technical leadership and contribute to architectural decisions Qualifications - At least 5 years of backend engineering experience - Strong Java expertise - Proven experience building distributed systems - Knowledge of query engines, search platforms, rules engines, segmentation platforms, or analytics systems - Strong understanding of data modeling and domain-driven design principles - Experience with event-driven architectures - Skilled in designing scalable APIs and backend services - Strong problem-solving and performance optimization skills - Experience with cloud-native architectures - Ability to drive technical decisions and contribute to system architecture - Upper-Intermediate+ English level Requirements - Experience with recommendation engines - Knowledge of Quarkus - Experience building Customer Data Platforms (CDP) - Experience with marketing automation systems - Expertise in audience segmentation or personalization platforms - Familiarity with graph-based data models and relationship traversal - Experience with search technologies (Elasticsearch, OpenSearch) - Experience with stream processing technologies - Experience with Google Cloud Platform - Experience with large-scale analytics systems Benefits - Proactive and detail-oriented - Thrives in collaborative environments - Enjoys solving complex integration challenges - Comfortable experimenting with new technologies - Committed to improving data systems

Role Description Join a project where scalability, resiliency, and real-time communication are at the core of the engineering challenge. We are looking for a Senior Java Developer to help build a high-load multi-channel communications platform used to deliver critical notifications to millions of users worldwide. As part of Sigma Software, you will work remotely in an international engineering environment and contribute to the development of distributed, event-driven systems with complex delivery pipelines and fault-tolerant architecture. Project focuses on building a modern multi-channel communications platform capable of delivering critical notifications across email, SMS, voice, and push channels at massive scale. The system supports: - Automated workflows - Emergency broadcasts - Consent management - Reporting and analytics - Provider failover strategies - Real-time event processing Job Responsibilities: - Design and implement a scalable event-driven communications platform - Build highly reliable and fault-tolerant message delivery systems - Manage large-scale real-time event processing pipelines - Design and implement multi-channel delivery pipelines across email, SMS, voice, and push channels - Handle compliance requirements, consent management, and communication policies - Support emergency and high-priority notification workflows - Implement provider failover and resiliency strategies to ensure delivery continuity - Build tracking systems for delivery status, retries, and engagement events - Design and implement observability, reporting, and analytics infrastructure - Develop event processing and message orchestration workflows - Implement provider integrations and external messaging service adapters - Ensure system scalability, throughput, and performance under high load - Collaborate with product and engineering teams on communication flows and requirements - Contribute to architectural decisions and long-term platform evolution - Ensure operational stability, reliability, and maintainability of the system Qualifications - At least 5 years of software development experience - Strong expertise in Java development - Experience with distributed systems - Strong experience with event-driven architectures - Experience with messaging systems, queues, streams, and brokers - Experience designing high-scale APIs and backend services - Strong understanding of system reliability and fault tolerance - Upper-Intermediate English level Requirements - Experience with email or SMS delivery systems - Experience with telecom or messaging infrastructure - Experience with marketing automation platforms - Experience with notification or engagement systems - Experience with workflow engines - Experience with compliance-heavy systems, including consent and GDPR-like regulations - Experience with high-throughput event processing systems - Experience with cloud-native platforms, preferably GCP Benefits - Strong analytical and problem-solving skills - Ability to work in distributed cross-functional teams - Proactive approach to ownership and technical decision-making - Strong communication and collaboration skills - Ability to work in high-load, fast-paced environments - Focus on reliability, scalability, and engineering quality

Role Description Ready to shape the future of logistics technology? We are looking for a Middle/Senior Full Stack Developer to join our distributed team and help build a next-generation e-commerce fulfillment platform. This role offers remote flexibility with the option to work from Kraków, Poland. You will contribute to the development of a next-generation e-commerce fulfillment platform designed to automate and optimize order processing, inventory management, and delivery tracking. The solution leverages modern web technologies and AI-assisted development tools to ensure scalability and efficiency. This is a chance to work on a high-impact product in a collaborative, Agile environment. - Design, develop, and maintain robust software applications using TypeScript/JavaScript, Node.js, NestJS, and React.js - Implement new functionality from scratch, including role-based access control services, API integration services, and custom endpoints - Work in an AI-augmented development environment, leveraging tools like Claude Code, Cursor, and Microsoft Copilot - Collaborate closely with stakeholders to define, design, and deliver new features - Ensure code quality, security, and performance through critical evaluation of AI-generated outputs - Participate in SCRUM ceremonies and contribute to team planning, estimation, and retrospectives Qualifications - 3–5 years of commercial development experience with a focus on TypeScript/JavaScript - Proven expertise in Node.js, NestJS, React.js, Next.js, and REST API development - Knowledge of Go - Experience with AI-assisted coding tools (Claude Code, Cursor, Microsoft Copilot, or similar) - Ability to write clear prompts for code generation and refactoring - Skills in evaluating AI-generated code for security and performance implications - Experience translating AI-generated specifications into implementation tasks - Proficiency in debugging and validating AI-generated code - Familiarity with AI-driven development frameworks (BMAD, Superpowers, GSD, spec-kit, or equivalent) - Experience with any cloud provider (preferably Azure) - Experience working in SCRUM teams - Fluent English Requirements - Experience integrating and working with design systems (Tailwind, Storybook) - Proven experience with AI-augmented development (pet projects, certifications) - Participation in AI-assisted requirements breakdown and task decomposition using frameworks like spec-kit or BMAD Benefits - Be part of a long-term partnership, working on high-impact projects - Access to advanced AI tools and cloud technologies - Supportive team culture

Role Description Are you a Senior AI 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. 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 Qualifications - At least 5 years of commercial experience in software engineering, Data Engineering, or AI systems development - Experience with Golang - 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 - 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 Requirements - Background in Data Engineering - Experience with distributed data processing, Apache Spark, or Apache Beam - 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 Benefits - Work with advanced technologies - Contribute to mission-critical projects - Be part of a company recognized for excellence and innovation 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

Role Description Are you passionate about building scalable, high-performance data platforms? We are looking for a Senior Software Developer / Data Engineer to join our team and work remotely from Europe or Ukraine. In this role, you will contribute to a cutting-edge education technology initiative, designing and implementing a unified data integration platform that will serve as the foundation for an entire ecosystem. Why join us? You will work with modern technologies, collaborate with top engineers, and make an impact on a project that improves data governance, privacy, and compliance across the education sector. Job Description - Design and evolve the platform’s canonical data model - Architect and implement scalable data ingestion and synchronization frameworks - Build reliable, replayable, and highly scalable data processing pipelines - Design entity resolution and identity management capabilities - Define and implement data governance, lineage, and provenance standards - Drive architectural decisions related to scalability, resiliency, security, and operability - Collaborate with product and engineering teams to define platform capabilities and roadmap - Design APIs and delivery mechanisms for downstream consumers - Support customer migrations from legacy systems into the new platform - Mentor engineers and contribute to technical leadership across the team - Ensure platform reliability, performance, and operational excellence Qualifications - At least 5+ years of experience as a Software Developer or Data Engineer - Strong expertise in Java - Deep understanding of data platforms, integration platforms, or distributed systems - Hands-on experience with stream processing technologies (Apache Beam, Spark, Flink, Kafka Streams) - Experience designing and operating event-driven architectures - Strong data modeling and schema design skills - Experience with cloud-native architectures (GCP preferred) - Experience designing multi-tenant SaaS platforms - Strong understanding of data governance, lineage, data quality, and observability concepts - Proven ability to drive architectural decisions and technical initiatives - Strong communication and collaboration skills - Upper-Intermediate+ English level Requirements - Experience with Scala - Experience building Master Data Management (MDM) platforms - Experience with Customer Data Platforms (CDP) - Experience with identity resolution systems - Experience with Apache Beam/Dataflow in production environments - Experience with Cloud Spanner - Experience migrating large-scale legacy systems to cloud-native architectures - Experience leading platform engineering or data platform initiatives - Background in education technology or enterprise integration domains Benefits - Strong architectural thinking and technical leadership skills - Passion for building high-performance, scalable platforms - Comfortable mentoring peers and collaborating across teams - Proactive problem-solver with attention to detail - Committed to quality and operational excellence

Role Description Are you passionate about shaping the future of AI-powered products? We are looking for a Senior / Principal AI / ML Engineer to join our team and lead the standardization and scaling of AI implementation across a cutting-edge platform. This role offers the opportunity to work at the intersection of AI, data, and product engineering, driving innovation and delivering production-ready solutions. The position can be remote, offering flexibility while collaborating with a highly skilled, international team. We at Sigma Software value innovation, ownership, and engineering excellence, providing an environment where your expertise will directly influence strategic AI adoption. Why join us? We offer competitive benefits, professional growth opportunities, and the chance to work on impactful projects that push the boundaries of AI technology. - Lead the design and implementation of scalable AI-powered solutions across the product ecosystem - Automate manual workflows using AI-driven approaches, ensuring measurable efficiency gains - Architect and build semantic data models to support diverse AI use cases - Develop agent-based architectures for intelligent task automation - Build and maintain custom AI skills and capabilities tailored to product needs - Apply spec-driven development practices to ensure consistency and maintainability of AI features - Define and enforce best practices for AI integration and scalability - Collaborate closely with product and engineering leadership on AI strategy, roadmap, and execution - Evaluate emerging AI technologies and recommend adoption strategies Qualifications - 6+ years of experience in AI/ML engineering, or related fields - Strong experience with AWS - Solid experience with SQL - Experience with Anthropic ecosystem (Claude, LLM-based tools) - Proven track record in custom AI / LLM skills development - Hands-on experience with spec-driven development - Experience with agentic programming / agent-based systems - Ability to design scalable, production-ready AI solutions - WILL BE A PLUS: - Experience with DBT - Experience with Amazon Redshift - Experience building semantic layers / data modelling for AI Requirements - Strong ownership and ability to work independently - Product-oriented mindset with focus on practical AI application - Ability to translate business needs into scalable AI solutions - Structured and engineering-driven approach to AI implementation - Leadership mindset with ability to mentor and influence technical direction

Role Description Are you passionate about building secure, high-performance platforms? We are looking for a Senior Java Developer to join our team and work on a cutting-edge security platform. This is a remote role open to candidates across Europe and Ukraine. At Sigma Software, we create innovative solutions for complex ecosystems, ensuring security, scalability, and compliance at every step. You will be part of a talented engineering group designing the unified access layer for distributed services. Why join us? You will work on a mission-critical project with advanced security architecture, collaborate with skilled professionals, and contribute to a platform that supports global-scale operations. The project focuses on developing a centralized platform access layer that integrates: - API gateway capabilities - Service orchestration - Data composition - Fine-grained Attribute-Based Access Control (ABAC) This system will serve as the foundation for security and governance across the entire ecosystem, supporting complex organizational hierarchies, regional compliance, and strict enforcement guarantees. Job Responsibilities: - Design and evolve the platform access architecture for a large-scale distributed ecosystem - Build and maintain a unified API layer over multiple distributed services - Implement fine-grained ABAC authorization at scale, supporting complex hierarchies and relationships - Develop fail-closed security architectures with strict enforcement guarantees - Manage regional compliance, data residency, and routing requirements - Ensure consistent data visibility rules across all products and services - Design high-performance authorization evaluation systems and policy engines - Maintain auditability, traceability, and security transparency mechanisms - Collaborate with platform and product teams on API and access design - Contribute to architectural decisions and security standards Qualifications - At least 5+ years of experience building distributed systems - Strong expertise in Java development - Experience designing API platforms or API gateways - Solid background in security architecture and system design - Experience with authorization systems (RBAC/ABAC or similar) - Familiarity with cloud-native architectures and scalable, high-availability systems - Understanding of multi-tenant architectures - Experience operating complex distributed systems in production - Strong architectural thinking and problem-solving skills - Upper-Intermediate or higher English proficiency Requirements - Experience with Identity and Access Management (IAM) systems - Experience building API gateways or service mesh architectures - Work on security-critical or compliance-heavy systems - Knowledge of policy engines (e.g., OPA) - Experience with large-scale enterprise platforms - Familiarity with cloud providers (e.g., GCP) - Experience with data governance, audit, and compliance systems - Background in regulated or high-security environments Benefits - Proactive and detail-oriented - Thrives in collaborative environments - Enjoys solving complex integration challenges - Comfortable experimenting with new technologies - Committed to improving data systems

Role Description Are you ready to kick-start your career in a project that blends cutting-edge technology with real-world impact? We are looking for a Junior Full Stack Developer to join our remote team and help build a next-generation e-commerce fulfillment platform for one of Europe’s largest logistics companies. At Sigma Software, we value curiosity, collaboration, and continuous learning. You’ll work in a supportive environment where innovation is encouraged, and your ideas matter. This is a great opportunity to grow your skills in both back-end and front-end development while exploring AI-assisted coding tools in a production setting. Why join us? You’ll be part of a global team delivering impactful solutions, using modern technologies, and shaping the future of logistics. Project You will contribute to the development of a next-generation e-commerce fulfillment platform designed to automate and optimize order processing, inventory management, and delivery tracking. The solution leverages modern web technologies and AI-assisted development tools to ensure scalability and efficiency. This is a chance to work on a high-impact product in a collaborative, Agile environment. Job Description - Develop and maintain robust software applications using TypeScript/JavaScript, Node.js, Nest.js, and React. - Implement new functionality from scratch, such as role-based access control services, API integrations, and endpoint development, under the guidance of Senior Developers. - Collaborate closely with stakeholders to define, design, and deliver new features. - Work in an AI-augmented development environment, leveraging tools like Claude Code, Cursor, and Microsoft Copilot. - Participate in code reviews, ensuring code quality and maintainability. - Contribute to continuous improvement of development processes and team collaboration practices. - Follow Agile/SCRUM methodologies and actively participate in ceremonies. Qualifications - Commercial experience in software development with a focus on TypeScript/JavaScript stack. - Proven experience with Node.js, React.js, and REST API development. - Familiarity with AI-assisted coding tools (Claude Code, Cursor, Microsoft Copilot, or similar). - Ability to write effective prompts for AI-generated code and refactoring. - Experience preparing code for AI-assisted review and translating AI-generated specifications into implementation tasks. - Strong debugging and validation skills for AI-generated code. - Excellent communication and multitasking abilities. - Strong problem-solving and decision-making skills with a results-oriented mindset. - Analytical thinking and solid technical judgment. - Ability to quickly understand existing digital products and architectures. - Experience working in SCRUM teams. - Fluent English. Will Be a Plus - Experience integrating and working with design systems (Tailwind, Storybook). - Proven experience with AI-augmented development (pet projects, certifications). - Experience in AI-assisted requirements breakdown and task decomposition (e.g., spec-kit, BMAD). Personal Profile - Collaborative mindset and willingness to learn. - Interest in backend development with readiness to work across the full stack. - Passion for quality, clean code, and continuous improvement. - Adaptability to work in a dynamic, AI-driven development environment.

Role Description We are looking for a Business Analyst to join our high-load AdTech project, supporting a global self-serve advertising platform used by thousands of advertisers worldwide. This role offers the flexibility of remote work with occasional team meetups. - Map, analyze, and redesign publisher workflows (onboarding, billing, campaign approval) using BPMN - Create and manage the business rules document for core platform capabilities - Design standardized workflows “Golden Path” to optimize the multi-tenant architecture - Collaborate with the Head of Data & AI to identify automation opportunities - Audit live automated processes to verify efficiency and ROI outcomes, tracking metrics such as cycle time, auto-approval rate, and rework percentage - Facilitate requirements gathering sessions with internal and external stakeholders - Translate complex business needs into actionable specifications for engineering teams - Support testing and validation of new features against defined business rules Qualifications - At least 3 years of experience as a Business Analyst - Deep understanding of AdTech and/or white-label SaaS operational workflows - Proficiency in BPMN, UML, and Swimlane diagramming - Advanced ability to interview stakeholders and extract complex business rules and requirements - Familiarity with Agile/Scrum methodologies - Experience defining and managing API contracts and data models (REST/GraphQL, JSON) - Familiarity with A/B testing or experimentation frameworks - Proficiency in analytics and BI tools (SQL, Looker, Tableau) - At least an Upper-Intermediate level of English Requirements - Experience with cloud-native SaaS (AWS/Azure) and CI/CD tooling - Background in process governance, release management, RACI matrices, and change control Benefits - Professional development opportunities - Competitive benefits - Chance to make a tangible impact on an industry-leading platform Company Description Our Customer is a Sweden-based AdTech company specializing in advanced self-serve advertising platforms that automate direct transactions between advertisers and major global publishers. Their technology removes traditional friction in ad sales by enabling automation, transparency, and operational efficiency at scale. - Platforms are trusted by internationally recognized publishers, including TripAdvisor, Bloomberg, The Washington Post, Opera, and Dow Jones - Handling millions of transactions worldwide