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Full-stack Developer (Angular + Java)

  • On-site, Remote, Hybrid
    • Krakow, Poland
  • $25 - $35 per hour
  • Development

Job description

Xfive is scouting for a talented Full-Stack Developer (Angular + Java) to power up our engineering crew.

Job Summary

We’re looking for a mid- to senior-level engineer who’s equally at home crafting Angular front ends and Java back-end APIs. In this full-time freelance role, you’ll do more than just code; you’ll communicate directly with clients and help shape the architecture of our solutions.

What We Offer

We’re all about building a team where you can thrive and do your best work. Here’s what you’ll love about working with us:

  • Freelance opportunity: Enjoy the flexibility of a freelance contract and earn between $25 and $35 USD per hour, depending on your experience and expertise.

  • Room to grow: We support continuous learning and professional development to help you advance your career.

  • Make an impact: Your ideas and work will directly influence our direction and help drive meaningful change.

  • Diverse projects: Work on exciting projects for startups, agencies, and companies based in the US, UK, and Australia.

  • Work your way: Choose to work from home, your favorite coffee shop, or our Kraków office (we’ve got a nice parking space too!).

  • Set your schedule: Work the hours that suit you best, as long as there's some overlap with the team and clients.

  • Transparency: We’re open and honest about the company’s decisions, direction, and performance, so you’re always in the loop.

  • Supportive team: You’ll never be left alone. Our team is collaborative and always ready to help each other.

  • Great vibes: Join a team of open-minded, fun, and friendly people who enjoy what they do.

  • Stay connected: Participate in social events, both online and in person, to stay engaged and build connections.

Job requirements

Must-Haves:

  • At least 5 years of professional software development experience, including:

    • 3+ years with Angular

    • 3+ years with Java Spring Boot.

  • Strong verbal and written English communication skills (B2+ level), with the ability to talk directly with clients in online meetings.

  • Ability to deliver high-quality service and work independently.

  • Availability of at least 40 hours per week.

  • Solid programming fundamentals and understanding of best practices (e.g., DRY, KISS, abstraction, refactoring, optimization, security).

Frontend (Angular):

  • Strong knowledge of Vanilla JavaScript (ES6+).

  • Advanced proficiency with Angular v18+.

  • Deep understanding of Dependency Injection and Angular Signals.

  • Experience with new Angular Control Flow (@if, @for, @switch).

  • Familiarity with Standalone Components and NgModule-free architecture.

  • Experience with @defer and performance-focused reactive patterns.

  • Proficient with RxJS and state management.

Backend (Java):

  • Strong command of Java and Spring Boot.

  • Familiarity with non-relational databases like MongoDB.

  • Experience building RESTful APIs and working with microservices.

  • Understanding of Java concurrency and multi-threading.

  • Experience with testing frameworks like JUnit and Mockito.

  • Familiarity with Spring Security for authentication and authorization.

  • Proficiency with build tools such as Maven or Gradle.

  • Experience with containerization (Docker) and orchestration platforms (e.g., Kubernetes).

  • Good understanding of logging and monitoring tools for Java apps (e.g., SLF4J, Logback, ELK stack).

Nice-to-Haves:

  • Experience with C++ API development for high-performance services or native integrations.

  • Familiarity with Carbon Design System or other enterprise-grade component libraries.


On-site, Remote, Hybrid
  • Krakow, Małopolskie, Poland
$25 - $35 per hour
Development

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