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I am a Senior Backend Developer with over 12 years of experience specializing in designing and delivering Java-based backend systems. My expertise lies in building scalable, secure enterprise applications primarily in fintech, banking, and consulting domains. I am experienced in modern technologies including Spring Boot, REST APIs, microservices, and cloud platforms such as AWS and Azure. Throughout my career, I've led high-impact development projects, collaborated cross-functionally, and mentored junior engineers to uphold best practices. I enjoy building clean code and resilient systems, and am passionate about security-first thinking and compliance in software design.…I am a Senior Backend Developer with over 12 years of experience specializing in designing and delivering Java-based backend systems. My expertise lies in building scalable, secure enterprise applications primarily in fintech, banking, and consulting domains. I am experienced in modern technologies including Spring Boot, REST APIs, microservices, and cloud platforms such as AWS and Azure. Throughout my career, I've led high-impact development projects, collaborated cross-functionally, and mentored junior engineers to uphold best practices. I enjoy building clean code and resilient systems, and am passionate about security-first thinking and compliance in software design.

Wojciech Wojdanowski

Back-End Developer, Full Stack Developer, Developer, +2

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I am a Senior Backend Developer with over 12 years of experience specializing in designing and delivering Java-based backend systems. My expertise lies in building scalable, secure enterprise applications primarily in fintech, banking, and consulting domains. I am experienced in modern technologies including Spring Boot, REST APIs, microservices, and cloud platforms such as AWS and Azure. Throughout my career, I've led high-impact development projects, collaborated cross-functionally, and mentored junior engineers to uphold best practices. I enjoy building clean code and resilient systems, and am passionate about security-first thinking and compliance in software design.…I am a Senior Backend Developer with over 12 years of experience specializing in designing and delivering Java-based backend systems. My expertise lies in building scalable, secure enterprise applications primarily in fintech, banking, and consulting domains. I am experienced in modern technologies including Spring Boot, REST APIs, microservices, and cloud platforms such as AWS and Azure. Throughout my career, I've led high-impact development projects, collaborated cross-functionally, and mentored junior engineers to uphold best practices. I enjoy building clean code and resilient systems, and am passionate about security-first thinking and compliance in software design.

Available to hire

I am a Senior Backend Developer with over 12 years of experience specializing in designing and delivering Java-based backend systems. My expertise lies in building scalable, secure enterprise applications primarily in fintech, banking, and consulting domains. I am experienced in modern technologies including Spring Boot, REST APIs, microservices, and cloud platforms such as AWS and Azure.

Throughout my career, I’ve led high-impact development projects, collaborated cross-functionally, and mentored junior engineers to uphold best practices. I enjoy building clean code and resilient systems, and am passionate about security-first thinking and compliance in software design.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Senior Java & Full Stack Developer at Akamai Technologies

March 1, 2020 - Present

At Akamai Technologies, I developed RESTful microservices using Java 17, Spring Boot, and Spring Security to enable digital identity and onboarding workflows. I led backend integrations with Azure Active Directory, OAuth2, and multiple external verification providers. To streamline deployments, I implemented automation pipelines using Azure DevOps, Docker, and Terraform, supporting multi-environment release cycles. I built resilient inter-service communication mechanisms with Kafka and RabbitMQ, applying retry patterns and fallback handlers for fault tolerance. I actively contributed to architecture discussions, threat modeling, and compliance workshops with regard to GDPR and PSD2 regulations. Additionally, I mentored junior engineers and performed code reviews within distributed teams. Notable projects include delivering backend services for an eGovernment integration platform handling user identity and data exchange, as well as contributing to a digital loan origination system for a

Senior Java Developer at Pegasystems

February 29, 2020 - September 3, 2025

At Pegasystems, I designed and built RESTful microservices leveraging Java 17, Spring Boot, and Spring Security to support digital identity and onboarding flows. I led backend integrations with Azure Active Directory, OAuth2, and external verification providers. I automated deployment pipelines using Azure DevOps, Docker, and Terraform for flexible multi-environment deployments. I developed resilient inter-service communication via Kafka and RabbitMQ incorporating retry patterns and fallback methods. My role included participation in architecture discussions, threat modeling, and compliance workshops addressing GDPR and PSD2. I mentored junior engineers and conducted code reviews across distributed teams. Projects I contributed to include an eGovernment integration platform managing user identity and legacy system integration, and a digital loan origination system for a prominent Polish bank.

Java Developer at IBM

June 30, 2018 - September 3, 2025

During my tenure at IBM, I developed backend services focused on client onboarding, KYC processes, account management, and transaction processing using Java, Spring, and Hibernate frameworks. I implemented pricing feed listeners and trade event processors using Kafka, Redis, and WebSocket APIs, enabling real-time data processing. I collaborated closely with frontend teams utilizing Angular and Vue.js to expose APIs and WebSocket subscriptions. I ensured platform compliance with MiFID II, GDPR, and internal audit requirements. Additionally, I optimized PostgreSQL queries and PL/pgSQL procedures to enhance financial reporting systems and developed unit and integration tests using JUnit, Mockito, and RestAssured. Major projects included backend development for a trading dashboard providing real-time trade history and margin calculations, as well as eKYC and client portal onboarding workflows integrated with verification services.