HR Systems Integration Specialist (f/m/d) @ A1 Competence Delivery Center

Strength. Care. Growth

A1 Competence Delivery Center is a vital component of A1’s telecommunications business. Acting as an expertise hub, CDC is dedicated to delivering a full range of high-quality IT, network, financial and other services to support A1’s operations across all OpCos, independent of location.

Using the power of being OneGroup and leveraging synergies, CDC enables transparency of resources, key skills and knowledge expansion and personal career growth opportunities’ enhancement, paired with job stability.

You will know we are the right place for you, if you are driven by:

• Opportunities to learn and build your career.

• Meaningful work in a stable and fast-paced company.

• Diversity of people, projects, and platforms.

• A supportive, fun, and inspiring place to work.

Role Overview:

Lead the overall Workday architecture and integration strategy for a large telecommunications organization. Act as the design authority across Workday modules and integrations, ensuring scalability, compliance, and alignment with business needs.

Role insights:

• Define and govern Workday architecture standards across HCM, Compensation, Absence, Recruiting, Talent & Performance, and integrations.
• Design and oversee Workday solutions and integrations (Workday Studio, EIBs, Core Connectors, APIs).
• Partner with HR, IT, and Security to translate business requirements into optimal designs.
• Ensure compliance with GDPR, SOX, and data privacy standards.
• Provide technical leadership for integrations with payroll, ERP, and identity systems.
• Lead release impact assessments and remediation strategies.
• Act as an escalation point for complex design and integration issues.

What makes you unique:

• Proven experience as a Workday Architect or Integration Lead in large enterprises.
• Strong knowledge of HCM processes and Workday integration tools.
• Expertise in REST/SOAP APIs, XML, XSLT.
• Ability to balance strategic architecture with practical delivery.
• Excellent stakeholder engagement and decision-making skills.
• Strong analytical and troubleshooting skills.
• Full professional fluency in English (written and spoken).

Nice to Have:

• Workday certifications (Integrations, Security, Studio).
• Experience with middleware platforms (e.g., TIBCO).

Our gratitude for the job done will be eternal, but we’ll also offer you:

•  Valuable experience in one of the fastest-growing and most innovative industries.
•  Challenging assignments with strong opportunities for personal and professional growth in a multinational environment.
•  Hybrid working model supporting a healthy work-life balance.
•  Thousands of online and in-person Learning opportunities for you to grow.
•  Modern, open, and friendly work environment that fosters continuous learning and the development of both technical and soft skills.
•  Special employee tariffs and a wide range of attractive employee benefits.

If you have any questions,  please do not hesitate to contact Mariya Ivanova.