Senior Java+GO Developer

Java

plac Nowy Targ 28, Wrocław

Spyrosoft

110 - 150PLN

Net per hour - B2B

Full-time

B2B

Senior

Remote

Tech stack

English

B2

Polish

A2

Go

advanced

Java

advanced

Spring

advanced

IAM

junior

Job description

Job description

Are you ready to work on a global-scale system impacting over 500,000 active users monthly? Join us in developing and modernizing a multi-tenant, web-based benefits management platform that allows clients worldwide to manage employee benefits with full customization and localization.

We are seeking a Software Engineer (Go/Java) to be a key player in product development, service migration, and a strategic authentication modernization initiative. You will contribute to the development of new portfolio features, migrate services from Go to Java, and participate in a large-scale identity provider migration from IdentityServer3 to Keycloak.

Requirements

• Solid experience in Go (Golang) and Java development.

• Experience with microservices architecture and service migration.

• Familiarity with identity and access management (IAM) concepts.

• Experience integrating or migrating authentication systems (IdentityServer3, Keycloak, or similar).

• Strong analytical skills to understand and document system requirements.

• Ability to collaborate with cross-functional teams and stakeholders.

• Good understanding of security best practices in web applications.

• Strong problem-solving skills and a proactive mindset.

Nice to Have

• Experience working on multi-tenant SaaS platforms.

• Knowledge of OAuth2, OpenID Connect (OIDC) protocols.

• Familiarity with modern CI/CD pipelines.

• Experience in cloud environments (AWS, Azure, GCP).

Responsibilities

• Develop and maintain a benefits management system serving global enterprise clients.

• Work on product development for a portfolio system written in Go.

• Migrate multiple services from Go to Java.

• Collaborate on a strategic modernization project to replace the current authentication system with Keycloak.

• Define frameworks and deliver proof of concepts to validate migration approaches.

• Analyze and document current identity system requirements for functional compatibility.

• Collaborate with stakeholders to gather technical and security requirements.

• Evaluate integration patterns, user flows, and ensure compatibility with existing applications and infrastructure.

• Contribute to system scalability, maintainability, and performance improvements.

Published: 14.08.2025

Meet the company

Spyrosoft

Spyrosoft is an authentic, cutting-edge software engineering company, established in 2016. We have been included in the Financial Times ranking of 1000 fastest growing companies for three consecutive years: 2021, 2022 and 2023.

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