Are you a skilled Infrastructure Engineer looking to work on a high-impact, large-scale solution? Join our team at Sigma Software and help build and maintain a robust hybrid IT infrastructure for a cutting-edge access control and construction site management platform used across Europe.
This is a middle-level role with a remote work setup, offering the opportunity to collaborate with a highly experienced international team and contribute to a product that shapes the future of construction site security and operations.
We at Sigma Software value innovation, professional growth, and teamwork. You will be part of a long-term project with strong support for career development, where your dedication and expertise will be recognized and rewarded.
CUSTOMER
Our customer is a leading Scandinavian construction solutions provider, recognized as one of the biggest players in the Swedish market. With over 50 specialists in the overall development squad, including 32 team members in Ukraine, they have evolved from a smart-lock product to a comprehensive server-based solution with multiple self-developed web and mobile applications. Their focus is on expanding services across Scandinavia and Europe, delivering advanced security, access control, and site management innovations.
PROJECT
The project is a large-scale, complex access control system for the European construction domain. It goes beyond access control, offering advanced site management capabilities, real-time monitoring of worker presence, and tools for managing relationships between multiple companies operating within a site.
Job Description- Administer and support hybrid IT infrastructure (primarily on-premises, with selected workloads in Microsoft Azure)
- Install, configure, harden, and maintain Windows Server environments (2016–2022)
- Manage on-premises Active Directory, Group Policy, DNS, DHCP, and other core Windows services
- Perform basic administration of Azure infrastructure components (VMs, Virtual Networks, routing, Load Balancer, VPN connectivity, DNS, RBAC, monitoring)
- Administer and troubleshoot Microsoft SQL Server, including backup strategies, restore procedures, and performance optimization
- Manage Debian-based Linux servers hosting infrastructure services (e.g., Redis/Kafka)
- Support and troubleshoot containerized services on Linux hosts using Docker Compose
- Design, implement, and maintain infrastructure monitoring and alerting
- Administer and troubleshoot network services (routing, DNS, DHCP, SMTP, VPN)
- Manage source control systems (TFS / Azure DevOps Server, Git)
- Automate infrastructure operations using PowerShell
- Investigate incidents, perform root cause analysis, and implement preventive measures
- Maintain technical documentation and operational standards
- Collaborate with internal teams and customers to resolve issues and improve systems
- At least 3 years of Windows Server administration (2016–2022) experiecne in production environments
- Strong knowledge of Active Directory, Group Policy, DNS
- Solid SQL Server administration and troubleshooting skills
- Working knowledge of Debian-based Linux administration
- Practical experience with Docker on Linux (multi-host, Docker Compose)
- Experience with source control systems (TFS / Azure DevOps Server, Git)
- Strong troubleshooting mindset and networking fundamentals
- PowerShell scripting skills
- Ability to produce clear technical documentation
- Strong communication skills and independent work capability
WILL BE A PLUS
- Experience with monitoring/telemetry platforms (Zabbix, PRTG, Azure Monitor, Prometheus/Grafana, ELK/Loki)
- Experience with Azure IaaS/networking
- Azure DevOps pipelines and integrations
- Redis/Kafka administration experience
- Familiarity with HA patterns for containerized services
- Experience with virtualization platforms (Hyper-V)
PERSONAL PROFILE
- Strong analytical and troubleshooting skills
- Structured, process-oriented mindset
- Attention to detail and quality-first approach
- Independent ownership of infrastructure tasks
- Clear communication with technical teams and customers
Top Skills
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
