java backend engineer & systems analyst

We are seeking a Senior Java Backend Engineer for one of our key clients, a premier global financial technology leader. This position is a priority B2B contract engagement focused on deep system analysis, microservices understanding, and backend logic optimization within a large-scale international enterprise.

In this role, you will be a key contributor responsible for unraveling, documenting, and optimizing complex existing codebases across distributed architectures. Working alongside cross-border engineering teams, you will leverage modern AI-assisted development tools to drive independent problem-solving while facilitating seamless collaboration across multiple data domains.

What will your tasks involve?

• Deep Codebase & System Analysis: Spend the majority of your time (~90%) conducting deep-dive analysis of complex Java microservices, mapping logic dependencies, and understanding backend system behaviors.
• Cross-Domain Data Alignment: Collaborate closely with Data Warehouse (DWH) engineering units to align backend events, analytical pipelines, and data architectures.
• AI-First Tooling Integration: Utilize AI-driven IDEs and modern developer tools to accelerate code comprehension, analysis, and logic documentation.
• International Collaboration: Actively engage in daily technical exchanges with distributed engineering and business stakeholders across Poland, Germany, the UK, and India.
• Community & Knowledge Sharing: Contribute to a collaborative team culture by helping colleagues, handling ad-hoc technical inquiries, and translating complex technical concepts into clear business insights.

What we expect from you?

• Java & Spring Framework Expertise: Minimum 5 years of practical backend engineering experience focused on Java and the Spring ecosystem in microservices environments.
• Analytical & Investigative Mindset: Proven capability to dissect, trace, and comprehend unfamiliar, legacy, or multi-layered codebases independently.
• Communication & Stakeholder Skills: Excellent fluent English (written and spoken) with the ability to bridge communication between technical peers and business partners.
• Adaptability & AI Curiosity: Openness to stepping outside traditional workflows and comfortably utilizing AI-assisted development tools.
• Bonus Qualifications: Prior experience in the Banking/Financial domain and working knowledge of modern front-end frameworks (particularly Angular) are strong pluses.

What you can expect from us?

• Competitive B2B Remuneration: A flexible, experience-aligned B2B rate model reflecting senior technical and analytical expertise.
• Fast-Track Hiring Process: Efficient 1-stage recruitment process consisting of a single 1-hour online technical interview with engineering leads.
• Modern Working Environment: A hybrid working model (combining remote work with 4 days on-site in a modern office facility) offering local team synergy.
• Global Team Culture: Broad exposure to multi-cultural teams across Europe and Asia within a supportive, knowledge-sharing community.

Employment agency entry number 47

this job offer is intended for people over 18 years of age

We are seeking a Senior Java Backend Engineer for one of our key clients, a premier global financial technology leader. This position is a priority B2B contract engagement focused on deep system analysis, microservices understanding, and backend logic optimization within a large-scale international enterprise.

In this role, you will be a key contributor responsible for unraveling, documenting, and optimizing complex existing codebases across distributed architectures. Working alongside cross-border engineering teams, you will leverage modern AI-assisted development tools to drive independent problem-solving while facilitating seamless collaboration across multiple data domains.

What will your tasks involve?

• Deep Codebase & System Analysis: Spend the majority of your time (~90%) conducting deep-dive analysis of complex Java microservices, mapping logic dependencies, and understanding backend system behaviors.
• Cross-Domain Data Alignment: Collaborate closely with Data Warehouse (DWH) engineering units to align backend events, analytical pipelines, and data architectures.
• AI-First Tooling Integration: Utilize AI-driven IDEs and modern developer tools to accelerate code comprehension, analysis, and logic documentation.
• International Collaboration: Actively engage in daily technical exchanges with distributed engineering and business stakeholders across Poland, Germany, the UK, and India.
• Community & Knowledge Sharing: Contribute to a collaborative team culture by helping colleagues, handling ad-hoc technical inquiries, and translating complex technical concepts into clear business insights.

What we expect from you?

• Java & Spring Framework Expertise: Minimum 5 years of practical backend engineering experience focused on Java and the Spring ecosystem in microservices environments.
• Analytical & Investigative Mindset: Proven capability to dissect, trace, and comprehend unfamiliar, legacy, or multi-layered codebases independently.
• Communication & Stakeholder Skills: Excellent fluent English (written and spoken) with the ability to bridge communication between technical peers and business partners.
• Adaptability & AI Curiosity: Openness to stepping outside traditional workflows and comfortably utilizing AI-assisted development tools.
• Bonus Qualifications: Prior experience in the Banking/Financial domain and working knowledge of modern front-end frameworks (particularly Angular) are strong pluses.

What you can expect from us?

• Competitive B2B Remuneration: A flexible, experience-aligned B2B rate model reflecting senior technical and analytical expertise.
• Fast-Track Hiring Process: Efficient 1-stage recruitment process consisting of a single 1-hour online technical interview with engineering leads.
• Modern Working Environment: A hybrid working model (combining remote work with 4 days on-site in a modern office facility) offering local team synergy.
• Global Team Culture: Broad exposure to multi-cultural teams across Europe and Asia within a supportive, knowledge-sharing community.

Employment agency entry number 47

this job offer is intended for people over 18 years of age

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