Full stack Developer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe. 

 

We are seeking a Full Stack Developer to support the migration of a critical web application from Windows servers to a target application server hosted on Red Hat Linux, and subsequently provide development and maintenance for both the web layer and Oracle backend components post-migration. This role includes system integration, UAT/OAT support, defect resolution, production readiness, and ongoing enhancements in PL/SQL and scripting for data handling and automation.

This two-phase role is crucial for ensuring smooth migration completion in 2026 and delivering high-quality application development afterward.

 

Sounds like your kind of challenge? 

What you’ll be doing

  1. Environment & Deployment Coordination
  • Validate configuration and operational readiness of UAT environments on Red Hat Linux
  • Support installations in OAT and Production (deployment preparation, cutover readiness, post-go-live validation)
  • Troubleshoot integration issues involving logs, services, configurations, and permissions
  1. Testing & Defect Resolution
  • Support functional, technical, and regression testing in UAT and OAT phases
  • Debug and resolve issues discovered during user acceptance and operational acceptance testing
  • Contribute to release stability and operational resilience prior to go-live
  1. Documentation & Collaboration
  • Maintain technical documentation for deployment steps, configurations, and known workarounds
  • Work closely with developers, testers, infrastructure, release, and operations teams to execute migration successfully

Application Development & Maintenance (Post-migration)

  • Develop web functionality using Java, Spring Boot, Vue.js, HTML, JSP
  • Create and optimize data pipelines into Oracle database with PL/SQL
  • Build automation scripts for data checks, logging, and process monitoring in Shell scripting on Linux
  • Perform defect resolution, incident handling, and small-scale enhancements for Oracle PL/SQL and web components
  • Deliver secure, efficient, and well-documented code following group standards

Note: Detailed project information will be shared during the recruitment process. 

What you get in return

  • Flexible cooperation model – choose the form that suits you best
    (B2B, employment contract, etc.)
  • Hybrid work setup – remote days available depending on the client’s arrangements – 6 days a month from the office in Kraków
  • Collaborative team culture – work alongside experienced professionals eager to share knowledge 
  • Continuous development – access to training platforms and growth opportunities 
  • Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more 
  • High quality equipment – laptop and essential software provided 

Who we’re looking for

Technical Skills (Required)

  • Web: Java, Spring Boot, Vue.js, JavaScript, HTML, JSP
  • Database & Backend: Oracle PL/SQL, Linux Shell scripting
  • DevOps: GitHub, Ansible; experience in deployment and troubleshooting in Linux environments
  • Strong experience debugging configuration and runtime issues on Red Hat Linux
  • Familiarity with test-driven migration processes and ability to support regression testing

Deliverables Expected

Migration:

  • UAT defect fixing and sign-off support
  • OAT installation and testing support through sign-off
  • Production deployment readiness and go-live assistance
  • Technical documentation for configuration, deployment, and operational guidance

Development:

  • New Oracle database pipelines via PL/SQL
  • Linux shell scripts for automation, logging, and operational monitoring
  • Defect resolution and performance tuning for application components

What You Bring

  • Proven experience as Full Stack Developer handling both web application migration and backend development
  • Strong ability to troubleshoot Linux-based environments and automate tasks via scripting
  • Excellent communication skills to work cross-functionally in global teams
  • Problem-solving mindset and capability to work under strict timelines for go-live readiness

Nice to Have

  • Experience in data quality frameworks and ETL processes
  • Familiarity with release management and runbook preparation
  • Understanding of performance optimization techniques for Oracle and application servers

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference. 

Full stack Developer

Kraków

B2B

1400 - 1600 pln/md netto + VAT

Apply for position

I will handle your recruitment

Marek Lemański

SUPPORT & BENEFITS

Private healthcare

Fast access to doctors and medical tests. 

Mindbox fully covers the individual package. You can extend the coverage to your partner and family on preferential terms. A wide network of medical providers and clear rules for everyday use.

Multisport

Energy that pays off.

We cover 50% of the card cost. You get access to thousands of sports facilities across Poland, plus a convenient mobile app. Additional cards for family members are available.

Training & development

Practical support for your career growth.

We co‑fund courses, certifications and conferences under a clear Training Policy. You also get access to a library of recorded webinars and trainings – available whenever you need them.

Eyewear or contact lenses co‑funding

Clear vision means comfortable work.

Up to PLN 500 every two years, with an additional PLN 300 available in justified cases. Simple reimbursement, regardless of your form of cooperation.

Group life insurance

Real protection from day one.

Option I is fully funded by Mindbox, Option II is co‑funded. You can include your partner and adult children, with coverage that also applies to treatment and hospitalisation abroad.

Ongoing support from the Talent Network Development

You’re not on your own in a project.

Regular contact, quick response and a partnership‑based approach. You focus on your work — we help take care of the rest.

Regular integration meet‑ups

Relationships that work beyond the project.

Cyclical meet‑ups for contractors in major cities across Poland. A space to talk, exchange experience and stay in real contact with the Mindbox team.

Annual company‑wide integration

One event. The whole community.

A two‑day company gathering with accommodation, transport and a full activity programme. Time to connect teams from across Poland and build shared experiences.

New baby gift

Important moments matter to us.

When a child is born, we prepare a personalised gift. All it takes is a short message to the Talent Network Development team.

do you like
like our offer?

the recruitment process

We support you at every stage

Submit your CV

Apply directly for a selected job offer or simply send us your CV.

Recruiter call

If your profile matches the role or we have a good opportunity for you, a recruiter will get in touch with you.

Profile shared with the client

After the call, we recommend your profile to the client. This is your first real step toward a specific project.

Project interview

If the client wants to proceed, we arrange the meeting. We prepare you for the interview and stay in close contact.

Feedback and decision

You receive feedback regardless of the outcome. If it’s a match, we present an offer.

Contract 100% online

All formalities are handled remotely. Fast, convenient and straightforward.

Ongoing support

Our IT Talent Network team supports you throughout the entire project.

Referral Program

Refer a friend & get up to 6,000 PLN

Do you know an IT specialist who could be a good fit for one of our projects? Share their contact details with us and we’ll take care of the rest.

You can receive up to 6,000 PLN for a successful referral.