Wojciech
Sarota

Senior Software Engineer, Java and Spring Boot

LocationKraków, Poland

Emailwojciech.sarota.1997@gmail.com Phone+48 533 420 141 LinkedInwojciech-sarota

Senior Software Engineer with 6+ years of experience delivering secure and scalable fintech solutions. Specialized in Java and Spring Boot microservices. I enjoy translating complex business requirements into practical technical solutions.

Experience

Feb 2025 – presentJaris Inc.

Senior Software Engineer at Jaris

Architected and delivered the Beneficial Owner data collection module, reducing application processing time by 40% through automated validation and streamlined workflows.
Led the OAuth2 migration from a legacy authentication system using Spring Boot Authorization Server, enabling modern authentication flows compliant with OAuth2 RFCs and eliminating security vulnerabilities.

Java
Spring Boot
OAuth2

May 2020 – Feb 2025Jaris Inc.

Software Engineer at Jaris

Integrated third-party AML/KYC providers, reducing manual verification time by 60% and improving compliance accuracy through automated document verification.
Implemented Auth0 authentication flows for a no-code partner integration initiative, enabling 5+ partner integrations with zero security incidents.
Served as technical subject matter expert during the Retool platform migration, working with operations teams to migrate 12+ internal tools and identify critical legacy system vulnerabilities.

AML/KYC
Auth0
Retool

Feb – May 2020Idealogic

Junior Software Engineer at Idealogic

Improved code quality across the Java codebase, increasing unit test coverage from 45% to 75%.
Implemented integration tests for critical API endpoints in Spring Boot microservices.

Java
Spring Boot
JUnit
Mockito

Education

2021 – 2023

Master of Science in Computer Science

Warsaw University of Technology, grade 5.0/5

Performance Analysis of Blocking vs Non-Blocking REST APIs in Java Spring Boot

2017 – 2021

Bachelor of Engineering in Computer Science

Cracow University of Technology, grade 4.5/5

Games Archive Management Application

Skills

Backend: Java, Spring Framework, Spring Boot, Hibernate, REST APIs, Microservices, JUnit, Mockito, Python, FastAPI
Frontend: React, TypeScript, JavaScript, Next.js
Databases: SQL, PostgreSQL, Redis
Cloud and DevOps: AWS, Docker, Git, CI/CD, Vercel
Observability: Datadog, Opsgenie
Security and auth: Auth0, OAuth2
Tools: Claude Code, GitHub Copilot, Retool, Jira, Confluence, Slack
Languages: Polish (native), English (professional working proficiency)