System Developer Purchasing, Finance and Invoicing

I-Ray IT Solutions AB; Sweden; Hybrid; SEK 600,000 - 800,000; Full time

Job summary

I-Ray IT Solutions AB seeks a skilled System Developer to work on purchasing, finance and invoicing systems, including integration and automation initiatives. You will participate in development, maintenance and delivery of reliable IT solutions across business areas.

The role requires strong collaboration with cross-functional teams, experience in production environments and a focus on digitalisation of processes.

Qualifications

• Fluent Swedish communication skills.
• 3+ years of experience developing, managing and further developing the same IT system throughout its lifecycle.
• The required experience must relate to one and the same system and cannot be achieved by combining lifecycle phases from different systems.
• 3+ years of experience in system development using Visual Studio and/or VS Code with Git.
• 3+ years of professional experience with C#/.NET development.
• 3+ years of experience with an additional scripting or backend language alongside C#, such as PowerShell or Python.
• 3+ years of experience working with IT systems and/or digital services in production environments with availability/continuity requirements.
• 3+ years of experience analysing, designing and implementing requirements.
• 3+ years of experience working within a development team.
• 3+ years of experience implementing integrations where an integration platform is the primary solution.

Responsibilities

• Development, maintenance and further development of business systems.
• Needs analysis, requirements analysis, solution design, troubleshooting and technical support.
• Development and management of integrations through an integration platform.
• Implementation and maintenance of integrations between different business systems.
• Invoicing and invoice management processes from creation to processing and archiving.
• Banking and finance-related solutions including encryption, signing and handling of payment/reporting files.
• Development and maintenance of financial accounting solutions.
• Creation and maintenance of reports for financial monitoring and analysis.
• Support for budget-related processes and financial reporting.
• Collaboration with developers, business specialists and other stakeholders.
• Contributing to continuous improvement, automation and digitalisation of business processes.

Skills

C# / .NET

PowerShell

Python

Visual Studio / VS Code

Git

SQL

Power BI

SQL Server

Tools

SSIS

TEIS

Azure DevOps

Power Automate

Dynamics/Xellent

Job description

System Developer - Purchasing, Finance and Invoicing

Location: Skellefteå, Sweden / Partial Remote

Working method: Hybrid - approximately 50% remote

Job type: Consultant

Scope: 100%

Assignment period: Immediate until 30 October 2027, with an option for extension until 30 October 2029

About the Role

We are looking for a skilled and experienced System Developer to work with business systems and integrations within the areas of purchasing, finance and invoicing.

The role involves system development, maintenance, integration, troubleshooting and further development of IT systems supporting business-critical processes. You will work across several technical and business areas and contribute to stable, reliable and efficient digital solutions.

Responsibilities

• Development, maintenance and further development of business systems.
• Needs analysis, requirements analysis, solution design, troubleshooting and technical support.
• Development and management of integrations through an integration platform.
• Implementation and maintenance of integrations between different business systems.
• Invoicing and invoice management processes, from invoice creation through processing and archiving.
• Banking and finance-related solutions, including encryption, signing and handling of payment and reporting files.
• Development and maintenance of financial accounting solutions.
• Creation and maintenance of reports for financial monitoring and analysis.
• Support for budget-related processes and financial reporting.
• Collaboration with developers, business specialists and other stakeholders.
• Contributing to continuous improvement, automation and digitalisation of business processes.

Required Qualifications

• Fluent Swedish communication skills, both verbally and in writing.
• At least 3 years of experience developing, managing and further developing the same IT system throughout its lifecycle. The required experience must relate to one and the same system and cannot be achieved by combining corresponding lifecycle phases from different systems.
• At least 3 years of experience in system development using Visual Studio and/or VS Code, including integrated version control with Git.
• At least 3 years of professional experience with C#/.NET development.
• At least 3 years of experience with an additional scripting or backend language alongside C#, such as PowerShell or Python.
• At least 3 years of experience working with IT systems and/or digital services in production environments with requirements for availability and continuity.
• At least 3 years of experience analysing, designing and implementing requirements.
• At least 3 years of experience working within a development team.
• At least 3 years of experience implementing integrations where an integration platform is the primary solution for system integration, business logic and communication between systems.
• At least 3 years of experience creating and maintaining reports, for example using Microsoft Power BI.
• At least 3 years of experience working with relational databases, including development and maintenance of SQL queries, stored procedures, functions and views.

Additional Experience

• Working in cross-functional teams.
• Implementing integrations with Microsoft Dynamics/Xellent.
• SQL Server Integration Services (SSIS).
• TEIS integration platform.
• Automating and digitalising business processes using established automation platforms such as Power Automate or equivalent. Script-based automation alone does not meet this requirement.
• Working within the energy industry, particularly with B2C and B2B invoicing.
• Financial accounting.
• Azure DevOps or equivalent tools for planning, coordinating and monitoring development activities.

Technical Environment

• C# / .NET
• Visual Studio / VS Code
• Git
• PowerShell and/or Python
• SQL Server
• Microsoft Power BI
• SQL Server Integration Services (SSIS)
• TEIS
• Microsoft Dynamics/Xellent
• Power Automate
• Azure DevOps or equivalent development-management tools

Assignment Details

Start date: Immediate

End date: 30 October 2027

Extension: Option to extend until 30 October 2029

Location: Skellefteå, Sweden

Remote work: Approximately 50%

Scope: 100%

Job type: Consultant

We are looking for a structured and solution-oriented system developer who can contribute to both ongoing development and long-term management of business-critical IT systems, integrations and digital processes.

Application deadline: 28 September 2026