Lviv, Lviv Oblast, Ukraine · On-site
Company Description Join Sigma Software’s IT Solutions Department and help shape the internal platforms and automation solutions that support thousands of daily business operations across the company. We are looking for …
Skills: JavaScript, Node.js, React.js, REST API, GraphQL
Warsaw, Masovian Voivodeship, Poland · On-site
Company Description Join Sigma Software as a Senior Test Engineer and help shape the quality of a cutting-edge social shopping platform that blends e-commerce with social networking. This role offers the opportunity to w…
Skills: QA testing, Exploratory testing, Mobile app testing, iOS, Android
Krakow, Lesser Poland Voivodeship, Poland · On-site
Company Description Join a product-focused engineering team developing solutions for the European construction industry. We are looking for a Middle/Senior .NET Developer who is ready to contribute not only to implementa…
Skills: C#, .NET, REST APIs, SOAP, MS SQL Server
Lisbon, Portugal · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, Apache Spark, PySpark, Delta Lake, Python
Krakow, Lesser Poland Voivodeship, Poland · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, Apache Spark, PySpark, Delta Lake, Python
Kyiv, Ukraine · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, PySpark, Apache Spark, Delta Lake, Python
Lisbon, Portugal · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, PySpark, Python, SQL, Delta Lake
Krakow, Lesser Poland Voivodeship, Poland · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, PySpark, Python, SQL, Delta Lake
Kyiv, Ukraine · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, PySpark, Python, SQL, Delta Lake
Lisbon, Portugal · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, Apache Spark, PySpark, Delta Lake, Python
Krakow, Lesser Poland Voivodeship, Poland · On-site
Company Description Are you a Senior Data Engineer passionate about building scalable, high-performance data platforms and working with modern Lakehouse technologies? Join Sigma Software’s Data Engineering Center of Exce…
Skills: Databricks, Apache Spark, PySpark, Delta Lake, Python
Kyiv, Ukraine · On-site
Company Description Sigma Software is looking for a Compliance Consultant to strengthen our governance, risk, and compliance practices. In this role, you will work with a wide range of international standards and regulat…
Skills: Compliance management, ISO 27001, SOC 2, GDPR, Risk assessment
Warsaw, Masovian Voivodeship, Poland · Hybrid
Company Description Are you ready to take ownership of mission-critical backend systems in a high-load environment? We are looking for a Senior Java Developer to join our engineering team in Warsaw. This is a hybrid role…
Skills: Java, Spring Boot, MySQL, Kafka, Microservices
Kyiv, Ukraine · On-site
Company Description We’re looking for a Senior IT Lawyer who thrives at the intersection of law and business. From cross-border agreements and investment projects to IP, you’ll navigate complex legal challenges and turn …
Skills: Legal support, Contract drafting, Contract review, Intellectual property law, Investment law
Kyiv, Ukraine · On-site
Company Description Are you eager to take ownership of a portfolio of complex, high-impact projects? Do you excel at executive-level stakeholder management and driving results in dynamic environments? We have a great opp…
Skills: Project Management, Program Management, Portfolio Management, Stakeholder Management, Risk Management
Kyiv, Ukraine · On-site
Company Description Are you eager to take ownership of a portfolio of complex, high-impact projects? Do you excel at executive-level stakeholder management and driving results in dynamic environments? We have a great opp…
Skills: Project Management, Program Management, Portfolio Management, Stakeholder Management, Agile
Warsaw, Masovian Voivodeship, Poland · Hybrid
Company Description Are you ready to take ownership of mission-critical backend systems in a high-load, transaction-heavy environment? We are looking for a Senior Java Developer to join our Payments Domain team in Warsaw…
Skills: Java, Spring Boot, MySQL, Kafka, Microservices
Bucharest, Romania · On-site
Company Description We are looking for a Senior Full Stack Engineer with AI to help design, develop, and operate modern cloud-based applications for the healthcare domain. In this role, you will work across Front-end, Ba…
Skills: React, Angular, Java, Spring Boot, Python
Warsaw, Masovian Voivodeship, Poland · On-site
Company Description We are seeking a highly skilled Solution Architect to drive design and delivery of cutting-edge AdTech platforms and innovations. This role offers the opportunity to contribute to impactful AdTech ini…
Skills: Software Architecture, AdTech, Distributed Systems, C++, Golang
Warsaw, Masovian Voivodeship, Poland · On-site
Company Description We are seeking a highly skilled Solution Architect to drive design and delivery of cutting-edge AdTech platforms and innovations. This role offers the opportunity to contribute to impactful AdTech ini…
Skills: Software Architecture, AdTech, C++, Golang, Rust
Lviv, Lviv Oblast, Ukraine • On-site
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You will design and implement scalable enterprise-level software solutions while leading technical initiatives and mentoring engineering teams. Additionally, you will drive the adoption of AI-assisted development standards and ensure the reliability and performance of internal business platforms.
Candidates must have at least 7 years of commercial software engineering experience with a strong focus on back-end development using JavaScript and Node.js. Proficiency in software architecture, enterprise integrations, and the ability to lead cross-team collaborations are essential for this role.
Join Sigma Software’s IT Solutions Department and help shape the internal platforms and automation solutions that support thousands of daily business operations across the company. We are looking for a Principal level engineer who combines deep technical expertise with strong leadership and communication skills.
In this role, you will work in a complex enterprise environment, contributing to scalable Back-end-heavy Full Stack solutions, enterprise integrations, and AI-enabled engineering practices. The position combines hands-on development with architectural decision-making, mentoring, and cross-team collaboration.
We at Sigma Software value engineering excellence, continuous improvement, and modern development approaches. You will have the opportunity to influence technical strategy, drive automation initiatives, and help establish responsible AI-assisted development standards across projects.
The role is part of Sigma Software’s IT Solutions Department, which is responsible for building and evolving the company’s internal digital ecosystem. The department develops enterprise business applications, automation platforms, integrations, and productivity solutions that improve operational efficiency and employee experience across multiple business domains.
The project focuses on developing and evolving enterprise-scale internal platforms and automation systems used across Sigma Software. The environment includes interconnected services, enterprise integrations, process automation workflows, and AI-assisted engineering practices designed to support operational scalability and business efficiency.
You will contribute to architecture design, implementation of scalable Back-end solutions, enterprise integrations, and AI-enabled capabilities while collaborating closely with multiple technical and business teams.
Key Technologies: JavaScript, Node.js, React.js, REST API, GraphQL, Claude Code, Codex
We turn ideas into products that make the world a better place
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 24 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 2,000 professionals in 40+ offices across 21 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 2002, 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.
Offices: 41 Devonshire Street, Ground Floor, London, W1G 7AJ, GB · Hornsgatan 1, Stockholm, 18 46, SE · 1 Ac. Proskury Str., Kharkiv, 61070, UA · 7 Lekha Kachynskoho Str., 3rd floor, Odesa, 65026, UA · 58 Yaroslavska Str., BC Astarta, Kyiv, Kyiv 04071, UA
We turn ideas into products that make the world a better place
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 24 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 2,000 professionals in 40+ offices across 21 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 2002, 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.
Offices: 41 Devonshire Street, Ground Floor, London, W1G 7AJ, GB · Hornsgatan 1, Stockholm, 18 46, SE · 1 Ac. Proskury Str., Kharkiv, 61070, UA · 7 Lekha Kachynskoho Str., 3rd floor, Odesa, 65026, UA · 58 Yaroslavska Str., BC Astarta, Kyiv, Kyiv 04071, UA
