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SOLUTION / SYSTEM ARCHITECT

Publication Date: Nov 5, 2026

Ref. No: 552916

Location:

Warszawa, PL

Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements.

With more than 52,000 employees serving over 4,500 clients across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation, strengthen cybersecurity, and deliver secure digital workplace environments to support its clients, its employees and society. Atos also provides consulting and advisory services through its Atos Amplify brand.

A trusted partner in operating complex and mission-critical environments, Atos supports organizations across highly regulated and sovereign contexts.

About Atos Group

Atos Group is a global leader in digital transformation with c. 54,000 employees and annual revenue of c. €7.2 billion, operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.

We are looking for a hands-on Solution / System Architect to join our Application Management team working on a public sector project for one of our clients.

In this role, you will turn vendor documentation and technical requirements into secure, reliable infrastructure solutions. You will combine architecture ownership with hands-on technical expertise, lead engineers and represent architecture in key discussions with the client, security teams and technology vendors.

Main mission

• Turn vendor documentation into Low-Level Designs and Connectivity Matrices for different environments and identify gaps before implementation.
• Design architecture changes, green-field installations with data migration, and Kubernetes / VMware Tanzu platforms integrated with Oracle WebLogic and OSB.
• Verify connectivity, certificates and authentication hands-on and troubleshoot technical issues together with partner teams.
• Design secure and reliable solutions and present architectural decisions to the client's security team.
• Maintain relevant architecture and security documentation.
• Drive automation and use AI to improve the efficiency of architecture and engineering activities.
• Lead engineers by example and represent the team during architecture meetings with the client and technology vendors.
• Contribute to contractual deliverables, including the Technology Watch Report.
• Build business cases for automation and technical improvements together with the client and security teams.
• Identify activities extending beyond the agreed service scope and provide delivery and account teams with sound technical and business arguments.

Expected skills

• EU citizenship.
• Polish at C1/C2 level.
• Fluent spoken and written English, allowing confident communication and daily work in an international environment.
• Strong hands-on experience with Oracle WebLogic Server 12c/14c, including clusters, JMS, OSB, OWSM, security realms and deployments.
• Practical experience with VMware Tanzu / Kubernetes.
• Java knowledge at a diagnostic and troubleshooting level.
• Working knowledge of Kafka, F5, Oracle Database / RAC and Jenkins.
• Strong Linux command-line skills, including troubleshooting without a GUI.
• Experience with Bash scripting. Python knowledge is an advantage.
• Strong networking and security knowledge, including TCP/IP, DNS, firewalls, load balancers, TLS/PKI and mTLS.
• Ability to independently create high-quality technical designs and identify gaps in vendor documentation.
• Understanding of SLAs, KPIs and service scope boundaries.
• Proactive and solution-oriented approach, with the ability to take ownership and lead by example.
• Ability to cooperate effectively with multiple stakeholders in an international environment and adapt to changing requirements.

Experience considered an advantage

• Previous experience working with EU institutions.
• Experience in complex multi-contractor environments.
• ITIL knowledge or certification.
• Relevant Oracle WebLogic, CKA/Kubernetes, VMware Tanzu or CCNA certifications.

What's in it for you:

• Opportunity to work on a large-scale public sector project for a client within the European Commission
• International project environment with cooperation across engineering, architecture, security and vendor teams
• Hands-on architecture role combining solution design with real technical ownership
• Opportunity to work with Oracle WebLogic, Kubernetes / VMware Tanzu, automation and AI in a complex enterprise environment

Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all.

Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment.

Choose your future. Choose Atos.