Technical Architect

Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees.
The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists.

Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German.

The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK.

We are looking for a Technical Architect to join the Sopra Steria Poland team responsible for a program that creates an open-source middleware platform. Its main goal is to support data access and interoperability in European data initiatives. It provides multiple compatible components, free to use, that adhere to a common standard of data quality and data sharing.

You will work with multi-party governance structures, heterogeneous technical stacks, and evolving EU-level standards and frameworks. Act as a solution and integration architect ensuring that Simpl-Open is applied consistently and effectively across three European initiatives with different domain constraints. Translate functional, governance, and non-functional needs into Simpl-Open-aligned architecture covering onboarding, publication and discovery, secure consumption, and operations.

Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice Poland.

Responsibilities:​

• Kubernetes literacy: deployment patterns, environment separation, configuration and secrets basics.
• Infrastructure-as-Code: Terraform and/or Crossplane; configuration management (e.g., Ansible) as applicable.
• GitOps and CI/CD patterns: release automation and environment promotion (Argo CD familiarity is a plus).
• Observability: logs/metrics/traces concepts; dashboards and alerting (Prometheus/Grafana, ELK/Loki patterns).
• Backup and restore readiness for platform components and operational continuity.
• Federated IAM: OIDC/OAuth2, identity provider federation, authentication federation, and attribute/role mapping.
• Mutual authentication and trust establishment: mTLS, certificate lifecycle basics, and governance-issued credentials where applicable.
• Security architecture fundamentals: least privilege, defence-in-depth, key management concepts, and secure communications design.
• Network security basics: segmentation, firewall/VPN concepts supporting secure exchanges.
• Architecture views per initiative: context, functional/logical, component, integration, and deployment views.
• Integration specifications: identity federation, policy model, connector and catalogue integration, interface contracts.
• Reference configurations and templates: IAM configuration patterns, policy templates, validation rules, onboarding guides.
• Operational playbooks: monitoring dashboards, alerting and log strategy, operational readiness checklists

Must have requirements:​

• At least 4 years of experience in solution and integration architecture for distributed platforms (APIs, event-driven integration, IAM, security controls).
• Deep understanding of Cloud-Native patterns and designing systems specifically for Kubernetes environments.
• Designing secure, scalable data processing landscapes and defining API governance strategies, utilizing integration patterns and tools like Kafka, Apache Spark, and ELT/ETL workflows.
• Proven experience with Data Space concepts, including Data Sovereignty, Data Governance, and Data Discovery. Ability to define canonical data standards, metadata schemas, and validation logic to ensure interoperability. Familiarity with specific data exchange standards like DCAT, IDSA, or ODRL. Experience in architecting solutions for secure transfer and processing of large datasets (High Throughput/Low Latency).
• Strong background in designing secure architectures using Keycloak (OIDC, OAuth2) with a focus on Role/Attribute-Based Access Control.
• Experience with Enterprise Architect (EA) or similar modeling environments. Proficiency in UML and architectural modeling with the ability to write clear, comprehensive technical documentation for developers and stakeholders.
• Fluent English B2/C1.
• Being open to occasional business trips abroad and visits in our office in Katowice.

Nice to have:​

• Hands-on experience with Eclipse Dataspace Connector (EDC) or similar interoperability components (Gaia-X).
• Knowledge of techniques and algorithms for data anonymization, pseudonymization, and automated quality validation.
• Previous contribution to Open Source projects or experience working in an open community environment.
• Experience in bridging Cloud/Middleware architectures with High-Performance Computing (HPC) 
   

What we offer: 

• BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud), local kindergarten. 

• DEVELOPMENT OPPORTUNITIES (B2B): Tech Lunches, Worksmile, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud). 

• ADDITION: free parking, fresh fruits, workation. 

In case of questions, please contact the HR team. 

The recruitment process for this position consists of two stages:
• a short phone call with a recruiter (30 min max)
• one-hour long interview on Teams (with both general and technical questions)

Salary range: 
UOP: 18 000 -22 000 PLN gross/month.
B2B: 135-180 PLN/h net + vat.

All information about salary range and its additional components will be provided during 1st stage of recruitment process.

At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.