Integration Developer/Specialist

Our client is looking for an experienced, hands-on Integration Specialist to join their People & Culture (P&C) IT Solutions team at Scania, supporting the Swedish P&C IT landscape. The team is responsible for developing, maintaining and continuously improving IT solutions supporting People & Culture processes. Our application landscape is evolving, with modern cloud-based solutions replacing legacy systems and an increasing need for reliable, secure and efficient integrations between business-critical applications. This is a hands-on development role combining new integration development, modernization of existing interfaces and technical troubleshooting within a business-critical HR IT environment. The assignment focuses on designing, developing, configuring, testing and maintaining integrations within Scania's in-house integration platform, HR Hub, which is built on PostgreSQL. HR Hub enables the exchange and transformation of employee, organizational and other HR-related data between source systems such as SAP SuccessFactors and downstream applications supporting payroll, time management, benefits, expense management and analytics. The Integration Specialist will take responsibility for integration solutions throughout their lifecycle, from technical analysis and design to implementation, testing, deployment and operational maintenance. The role involves both independent technical delivery and close collaboration with developers, solution architects, service managers, system owners and business stakeholders. You will be part of an established team with experienced colleagues who provide technical support and knowledge sharing. At the same time, you are expected to independently drive assigned tasks, take ownership of technical challenges and proactively contribute to improvements. The most important requirements are strong practical PostgreSQL/SQL development skills, experience designing and implementing integrations, and the ability to deliver reliable, secure and maintainable solutions in a collaborative team environment. Responsibilities • Integration design and development: Analyze requirements, design technical integration solutions, and develop, configure and maintain integrations within HR Hub. • Technical implementation: Translate functional requirements, integration specifications, field mappings and business rules into working solutions using PostgreSQL/SQL, Web-APIs and file-based interfaces. • Data mapping and transformation: Design and implement source-to-target mappings, data transformations, validations, filtering, routing logic and reference data handling. • Integration analysis: Analyze existing interfaces, data flows and system dependencies to identify technical changes and opportunities for improvement. • Testing and troubleshooting: Perform developer testing, support system and end-to-end integration testing, investigate defects and implement corrections. • Security and data protection: Apply secure integration development practices, including appropriate access controls, secure data transfers and responsible handling of sensitive employee and organizational information. • Technical improvements: Optimize integration performance, reliability, maintainability and data quality, contributing to modernization and continuous improvement of the integration landscape. • Technical documentation: Create and maintain integration designs, technical specifications, interface descriptions, configurations and deployment instructions. • Deployment and lifecycle management: Support integration deployments, application transitions, integration replacements and operational handovers. • Collaboration and coordination: Work closely with developers, architects, service managers, HR process experts, payroll specialists and other technical and business stakeholders to ensure integration solutions meet business needs. • Ownership and problem-solving: Independently drive assigned technical activities, identify risks and dependencies, and proactively resolve or escalate technical challenges. • Knowledge sharing: Contribute to team learning, technical discussions, integration standards and continuous improvement of development practices. Education Must Have: • Bachelor's degree in computer science, software engineering, information technology or a related technical field, or equivalent relevant professional experience. Nice To Have: • Additional education or certifications within integration technologies, database development, cloud technologies or enterprise architecture. Experience Must Have: • At least 3 years of professional experience in hands-on integration development or a similar technical development role. • Strong practical experience with PostgreSQL and SQL development, including writing, maintaining and troubleshooting SQL-based solutions. • Experience designing, developing and implementing enterprise integrations using Web-APIs, web services and file-based interfaces such as SFTP. • Good understanding of integration architecture and technical design, with the ability to translate business and functional requirements into maintainable technical solutions. • Experience working with structured data formats such as JSON and XML. • Experience with data mapping, transformations, validations, filtering and business rule implementation. • Experience with integration testing, defect analysis, technical debugging and deployment. • Understanding of secure integration development, data protection, access controls, error handling and operational monitoring. • Experience maintaining and troubleshooting integrations in production environments. • Ability to independently drive technical development tasks while collaborating effectively with other developers, architects and business stakeholders. Nice To Have: • Experience with SQL-based integration platforms, integration middleware or comparable in-house integration solutions. • Experience with SAP SuccessFactors or inte