System Engineer

Ilja Nedilko

I keep business applications, integrations, automation, and infrastructure calm under real operational pressure.

  • Maardu, Estonia
  • English, Swedish, Russian
  • 15+ years in IT operations
Portrait of Ilja Nedilko

About

Systems, automation, integrations.

I am a self-taught, seasoned IT tinkerer with over 15 years of experience across application support, workplace services, end-user experience, web development, and systems administration.

I have a heavy bias toward the Microsoft stack and services, but I am also a big fan of Linux. I am obsessed with automation, telemetry, and reproducible infrastructure. I treat environments like code, logs like truth, and outages like puzzles.

Integrations

Internet-facing apps, SAP-adjacent flows, EDI, APIs, middleware, and data movement.

Automation

PowerShell, Python, Bash, Azure Functions, reporting, evidence capture, and repeatable operations.

Operations

Windows, Linux, web stacks, databases, monitoring, incident response, and service reliability.

Experience

Work Experience

IT Application SpecialistCurrent at Linde Europe North | Tallinn, Estonia
November 2024 – present
  • Supporting Internet-facing applications with SAP integration, ensuring seamless data flow and system reliability.
  • Daily operations including incident and problem management, maintaining high availability and quick resolution times.
  • Development of new API endpoints and integrations to extend business capabilities and automate workflows, including pricing matrix pipelines and call-centre telemetry ingestion via Azure Functions (C#) into Azure SQL.
  • Built and maintain a geospatial gas automat inventory dashboard (PHP, Leaflet.js, Python, SQLite) with real-time stock tracking across 5 markets and monitoring integration.
  • QA test automation for enterprise applications using Playwright & Python across, covering login workflows, order validation, and screenshot evidence capture.
  • Internal tooling and automation library (Python, PowerShell) covering Azure AD/MS365 administration, Tableau report management, EDI/invoice data processing, and DuckDB-based analytics.
  • AI/LLM-related projects involving MCP (Model Context Protocol) and agentic workflow implementations.
Electronic data interchange (EDI) Specialist at Linde Europe North | Tallinn, Estonia
September 2022 – November 2024 (2 yrs 2 mos)
  • Led the end-to-end implementation and troubleshooting of EDI (Electronic Data Interchange) integrations, with a primary focus on Peppol, EDIFACT, and UBL standards, including integration with third-party systems such as SAP ERP and other platforms.
  • Managed the complete configuration and troubleshooting of EDI workflows, ensuring accurate data exchange across all phases from procurement to invoicing, which streamlined business operations and enhanced transaction accuracy.
  • Set up e-commerce punchout catalogs, enabling efficient and automated procurement processes for customers.
  • Coordinated and executed EDI projects, facilitating communication between vendors and customers to ensure alignment and successful project completion.
  • Oversaw change management for EDI projects, both internally and externally, to ensure smooth transitions.
  • Developed and implemented workflows using Microsoft Power Platform, along with custom scripts in Python and PHP, to enhance EDI system functionality and automate routine processes, improving operational efficiency.
  • Managed daily EDI operations, including incident management and resolution, while providing support to internal teams such as customer service, sales, and other business units.
Ecommerce Analyst at Linde Europe North | Tallinn, Estonia
July 2020 – September 2022 (2 yrs 2 mos)
  • Maintained and managed an e-commerce platform (HCL Commerce).
  • Handled catalog management, including publishing catalog items, image handling, product promotions, and marketing activities.
  • Developed backend web integrations for the e-commerce platform using PHP, Python, SQL-based databases, and Azure PaaS (Platform as a Service).
  • Troubleshot backend issues connected to the platform, which integrated with SAP ERP system.
  • Provided business intelligence (sales performance KPI) and ad-hoc reporting support for internal stakeholders using Python frameworks, SQL-based databases, and Tableau.
  • Managed technical incidents and coordinated with vendors to resolve platform-related issues, ensuring minimal impact on operations.
System Administrator at Linde Europe North | Tallinn, Estonia
October 2019 – June 2020 (8 mos)
  • Stepped in to assume technical responsibilities for a previous team member, ensuring the continuity of vital tasks and projects.
  • Introduced structure and organization to the department, which had previously lacked an established framework.
  • Overhauled and rewrote documentation, resulting in improved clarity and understanding for team members.
  • Provided guidance and proposals on implementing efficient structures within software license management.
  • Maintained a comprehensive list of custom applications, ensuring accurate records and easy access for the team.
  • Coordinated software needs and requirements with business users to better align technology with organizational goals.
  • Served as the primary contact with external vendors and providers for software purchases and licensing issues.
  • Troubleshot and resolved software issues, including legacy applications with limited documentation.
  • Developed custom tools and scripts using Python and PowerShell to enhance system capabilities and automate processes.
System Engineer at Fujitsu Sweden | Stockholm, Sweden
October 2013 – December 2019 (6 yrs 2 mos)
  • Providing technical expertise for the design, integration and maintenance of IT solutions.
  • Installation, configuration and maintenance of Microsoft Windows Server 2008/2012/2016 in a multi-customer datacenter environment.
  • Installation, configuration and maintenance of Microsoft Exchange Server and Microsoft Lync/Skype for Business Server for several enterprise customers.
  • Pre-sale technical advisory for new customers and/or changes to existing service delivery.
  • Web development and promotion of self-created applications (ordering portal; change management portal; other internal tools).
  • Installation, maintenance, configuration of backup systems (primarily based on CommVault).
  • Configuration, administration, technical advisory of cloud services (Microsoft Azure, Microsoft 365, Office 365).
  • Installation, configuration and maintenance of single sign-on integrations using Microsoft ADFS (Active Directory Federation Services).
  • Installation, configuration and maintenance of Linux-based infrastructure services.
  • Systems maintenance, integration and development using PowerShell, HTML/CSS, JavaScript, PHP, MySQL.
  • Troubleshooting and maintenance of system integrations, 3rd party applications, legacy systems, e-mail archiving solutions.
  • 3rd line support incident/escalation management.
  • Active participation in transition and transformation projects.
  • Cooperation with the ITSM team, development or change of existing internal change/problem/incident management flows.
Service Desk Technician at Fujitsu Sweden | Stockholm, Sweden
February 2013 – September 2013 (7 mos)
  • Providing high quality customer service & technical support to enterprise customers via phone and e-mail, in both Swedish & English languages.
  • Analyzing end-users issues and trying to solve them on first contact, otherwise act as SPOC (Single Point of Contact) and forward the issue as per procedures to another department(s).
  • Working with Active Directory (AD) and administrating Windows Server 2003 & 2008 and Exchange Server 2007 & 2010.
  • PowerShell & AD scripting.
  • Monitoring on-going cases, provide updates to the end-user as quickly as possible.
  • Monitoring & analyzing team’s results and provide feedback accordingly.
  • Maintaining a Sharepoint-based knowledge base.
  • Monitor & improve customer satisfaction, SLA and KPI targets.
  • Participate in task force meetings in case of major incident, as well as weekly chief advisory board and monthly service delivery meetings with the customer(s).
  • Provide training and support to new employees.
Service Desk Technician at Fujitsu Estonia | Tallinn, Estonia
August 2011 – February 2013 (1 yr 6 mos)
  • Providing high quality customer service & technical support to enterprise customers via phone and e-mail, in both Swedish & English languages.
  • Analyzing end-users issues and trying to solve them on first contact, otherwise act as SPOC (Single Point of Contact) and forward the issue as per procedures to another department(s).
  • Working with Active Directory (AD) and administrating Windows Server 2003 & 2008 and Exchange Server 2007 & 2010.
  • PowerShell & AD scripting.
  • Monitoring on-going cases, provide updates to the end-user as quickly as possible.
  • Monitoring & analyzing team’s results and provide feedback accordingly.
  • Maintaining a Sharepoint-based knowledge base.
  • Monitor & improve customer satisfaction, SLA and KPI targets.
  • Participate in task force meetings in case of major incident, as well as weekly chief advisory board and monthly service delivery meetings with the customer(s).
  • Provide training and support to new employees.
Technical Support Analyst at Arvato Services Estonia | Tallinn, Estonia
January 2011 – August 2011 (5 mos)

During my time at Arvato, I worked with two different projects; Microsoft End User Fulfillment & ASUS. Main responsibilities/tasks were:

  • Delivering high quality customer service to customers by phone and e-mail in English, Swedish and Russian; handle their inquiries regarding software replacement, order status, general marketing inquires and complaints.
  • Troubleshooting customers issues with different products (notebooks, routers, PDAs, etc.) in Swedish and English languages, over the phone and by e-mail.
Technical Support Analyst at Transcom Estonia | Tallinn, Estonia
August 2010 – January 2011 (5 mos)
  • Troubleshooting customers technical issues with their GPS devices (handheld, mobile software, PC suite, etc.) in Swedish, English and Russian, over the phone and by e-mail.
  • Managing cases using a Customer Relationship Management system; MS Dynamics CRM.
  • Escalating issues as needed and maintained communication with customer and technical teams (Tier II).
  • Contributing to the knowledge base by adding useful hints & tips, customer feedback, screenshots, update existing procedures, etc.
Web Developer at TALK.EE | Haparanda, Sweden
June 2005 – September 2009
  • Designing, implementing and maintaining a web chat using HTML/CSS, PHP, JavaScript, MySQL and AJAX (asynchronous communication between server and end-user).
  • Implementing functionality including: automatic flood and spam protection, curse word protection, hierarchical user privileges, reporting and mass account management, as well as coordinating efforts of a web designer and chat support operators.
  • Tracking users complaints and suggestions through live chat, e-mail and a bulletin (forum).
  • Promoting the website using banner exchange networks, search engines, link catalogs and sold banner ad-space.

Education

Certifications and background.

MCP Microsoft Certified Professional

Issued August 2013 | Credential ID E368-8211

MTA Microsoft Technology Associate

Networking, Security, Windows OS, and Windows Server Administration Fundamentals. Issued August 2013.

Power Searching with Google

Advanced search techniques and effective query construction. Issued July 2012.

Tornedalsskolan, Haparanda

Electrical Engineering and Automation, 2008 - 2009.

Marielundsskolan, Haparanda

2004 - 2009.

Maardu Põhikool, Maardu

1998 - 2004.