Solution Architect / Technical Lead (Java)

Experis; Kraków; Hybrid; PLN 320,000 - 520,000; Full time

Benefits offered by this job

B2B via Experis

Strategic banking transformation

Long-term cooperation

Modern technology stack

High-impact architectural role

Job summary

Experis is seeking a Solution Architect / Technical Lead for a large-scale banking project focused on payment systems. The role combines architecture, leadership, coordination, and hands-on support across Backend, Frontend, and DevOps.

Responsibilities include designing architectures, gathering requirements, coordinating teams, maintaining docs, and ensuring security and performance across high-volume transactions. Remote/hybrid with office visits in Warsaw.

Qualifications

• 5+ years of experience with banking payment systems.
• 10+ years of experience with Java.
• Experience with PostgreSQL, Elasticsearch, Kafka, and Kafka Streams.
• Knowledge of design patterns, UML, and Enterprise Architect.
• Experience with high-volume transaction processing systems.
• Expertise in Spring Boot, Spring WebFlux, Spring Cloud Gateway, Kafka Streams, Hibernate, Spring Security, and Resilience4j.
• Experience with Tomcat, Netty, Hazelcast, and Ehcache.
• Strong understanding of PKI, Digital Signatures, JWT, TLS, and mTLS.
• Experience with Docker and Kubernetes.
• Experience with cloud platforms (GCP preferred).
• Knowledge of Git/Gerrit, Jira, Maven, IntelliJ, and CI/CD processes.
• Experience with Prometheus, Grafana, Sentry, and Loki.
• Experience using AI-assisted development tools such as GitHub Copilot and MCP.

Responsibilities

• Design solution architecture for banking payment systems.
• Gather business and technical requirements.
• Coordinate project teams and oversee technical delivery.
• Prepare and maintain project documentation.
• Support development activities across Backend, Frontend, and DevOps teams.
• Ensure system scalability, security, and performance.

Skills

Banking payments

Java

Databases

Kafka

Design patterns

UML

Enterprise Architect

Security concepts

Docker

Kubernetes

Cloud platforms

Git/Gerrit

Jira

CI/CD

Monitoring

AI tools

Tools

Docker

Kubernetes

GCP

Git

Gerrit

Jira

Maven

IntelliJ

Job description

Solution Architect / Technical Lead (Java)

Location: Remote / Hybrid - Warsaw with occasional visits in the office (1-4 times per month)
Contract: B2B via Experis

About the Role

We are looking for an experienced Solution Architect / Technical Lead to join a large-scale banking project focused on payment systems. The role combines solution architecture, technical leadership, project coordination, and hands-on support across backend, frontend, and DevOps areas.

Responsibilities

• Design solution architecture for banking payment systems
• Gather business and technical requirements
• Coordinate project teams and oversee technical delivery
• Prepare and maintain project documentation
• Support development activities across Backend, Frontend, and DevOps teams
• Ensure system scalability, security, and performance

Requirements

• 5+ years of experience with banking payment systems
• 10+ years of experience with Java
• Strong experience with PostgreSQL, Elasticsearch, Kafka, and Kafka Streams
• Excellent knowledge of design patterns, UML, and Enterprise Architect
• Experience with high-volume transaction processing systems
• Expertise in Spring Boot, Spring WebFlux, Spring Cloud Gateway, Kafka Streams, Hibernate, Spring Security, and Resilience4j
• Experience with Tomcat, Netty, Hazelcast, and Ehcache
• Strong understanding of security concepts including PKI, Digital Signatures, JWT, TLS, and mTLS
• Experience with Docker and Kubernetes
• Experience with cloud platforms (GCP preferred)
• Knowledge of Git/Gerrit, Jira, Maven, IntelliJ, and CI/CD processes
• Experience with Prometheus, Grafana, Sentry, and Loki
• Experience using AI-assisted development tools such as GitHub Copilot and MCP

What We Offer

• B2B contract via Experis
• Opportunity to work on a strategic banking transformation project
• Long-term cooperation
• Modern technology stack and high-impact architectural role
• Collaboration with experienced engineering teams