Solution Architect

Qualco Technology

Solution Architect at Quento Technologies S.A. overseeing architecture for a regulated digital payments platform and acting as a liaison with the client Architecture team.

Posted 7/2/2026full-timeAthens • 🇬🇷 GreeceMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AzureCloudJavaKafkaKubernetesMicroservicesMongoDB.NETRedisSpringSpring BootSpringBootSQLVault

About the role

Key responsibilities & impact

Own and govern the end-to-end solution architecture across business, application, integration, data, security, infrastructure, and operational domains;
Act as the primary architecture liaison with the client Architecture team and ensure alignment with enterprise architecture principles and security standards;
Maintain and evolve HLDs, LLDs, architecture diagrams, integration views, data flow views, security architecture, and architecture decision records;
Govern solution design across mobile apps, web apps, Merchant Back Office, PSD2 APIs, API Gateway, Identity Server, Kafka/RedPanda, SignalR, SQL Server, MongoDB, Redis, AKS, WAF, firewall, SIEM, and Azure services;
Review and approve designs related to authentication, authorization, OAuth2, SCA, SSL pinning, HTTP signatures, TLS/mTLS, Key Vault, encryption, RBAC, monitoring, and auditability;
Support impact assessment for change requests, integration changes, regulatory requirements, non-functional requirements, and operational readiness;
Provide architecture guidance to Technical Leads, DevSecOps, QA, Business Analysts, and development teams during sprint delivery;
Ensure solution decisions consider resilience, high availability, scalability, maintainability, observability, security, and compliance;
Ensuring that all activities and duties are carried out in full compliance with regulatory requirements and supporting the continued implementation of the Group Anti-Bribery and Corruption Policy.

Requirements

What you’ll need

- University degree in Computer Science, Engineering, or a related field;
- Senior solution architecture experience in banking, payments, digital banking, fintech, or regulated enterprise platforms;
- Strong knowledge of cloud-native architecture, Azure, AKS, API gateways, microservices, event-driven architecture, and integration patterns;
- Experience with identity, access management, API security, encryption, certificate management, observability, and operational architecture;
- Ability to produce and govern HLDs, LLDs, integration designs, architecture decision records, and non-functional requirements;
- Strong communication skills with both technical teams and senior stakeholders;
- Ability to balance architecture governance with delivery pragmatism.
**Preferred Qualifications**
- Experience with PSD2, SCA, OAuth2/OIDC, mTLS, SSL pinning, WAF, SIEM, and regulated payment architectures;
- Familiarity with .NET, Java/Spring Boot or Quarkus, Kafka, Redis, MongoDB, SQL Server, and Kubernetes ecosystems;
- Experience liaising with enterprise architecture teams in large organisations.

Benefits

Comp & perks

**Your Life @ Qualco Group****On top of challenging work environment, we are offering:
💸 Competitive compensation, ticket restaurant card, and annual bonus programs** 💻 Cutting-edge IT equipment, mobile and data plan** 🏢 Modern facilities, free coffee and beverages, indoor parking, and company bus** 👨‍⚕ Private health insurance, onsite occupational doctor, and workplace counselor** 🏝️ Flexible working model, hybrid benefits & home equipment benefits** 🤸‍♂️ Onsite gym, wellness facilities, and ping pong room** 💡 Career and talent development tools** 🎓 Mentoring, coaching, personalized annual learning and development plan** 🌱 Employee referral bonus, regular wellbeing, ESG and volunteering activities

ATS Keywords

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Hard Skills & Tools

Solution ArchitectureCloud-Native ArchitectureAPI SecurityHLDsLLDsIntegration DesignsEncryptionIdentity Access ManagementMicroservicesEvent-Driven Architecture

Soft Skills

Strong Communication SkillsStakeholder ManagementGovernance Balancing