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Offer summary
(Summary generated by AI based on the full job description)
Project focuses on building scalable cloud-native web solutions. Stack includes Java (Spring Boot) and React / Next.js with TypeScript. Main responsibilities are backend architecture, maintaining frontend, leading the team technically and ensuring end-to-end delivery. Required experience as a tech lead or senior full‑stack, knowledge of API and system design, testing (JUnit, Vitest, Playwright) and observability practices. Offered benefits include private healthcare, Multisport and training budget, with a hybrid work setup.
from: 28 October 2026
to: 27 November 2026
30 000 - 33 000 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:lead
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Expected technologies
Java
Spring Boot
React
TypeScript
JUnit
Vitest
Playwright
Optional technologies
Spark
Next.js
Operating system
Windows
Our requirements
- Proven experience as a Tech Lead or Senior Full Stack Developer.
- Strong backend experience with Java/Spring Boot and good command of React + TypeScript.
- Solid understanding of system architecture, API design, and data flow integration.
- Familiarity with observability tools and monitoring practices in distributed environments.
- Hands-on knowledge of database design, migration, and testing frameworks (JUnit, Vitest, Playwright).
- Strong communication skills, proactive leadership, and the ability to balance hands-on coding with team guidance.
Optional
- Experience with cloud-native environments and deployment automation.
- Background in data engineering (Spark, event-driven processing).
- Practical experience with Next.js or other modern frontend frameworks.
Your responsibilities
- Lead and mentor a cross-functional engineering team, ensuring delivery quality and technical growth.
- Architect robust Java (Spring Boot) backend services and maintain well-structured React/Next.js frontends.
- Ensure end-to-end delivery of product features — from design, through development, to deployment.
- Set and enforce engineering best practices, including testing, code quality, and observability standards.
- Collaborate closely with UX, backend, and data teams to advance product functionality and user experience.
- Drive continuous improvement, ensuring projects align with architectural and performance goals.
- Note: Detailed project information will be shared during the recruitment process.
About the project
As a Tech Lead, you’ll take ownership of designing and delivering scalable software solutions across the Java (Spring Boot) backend and React/Next.js TypeScript frontend. You’ll guide the team technically and support product excellence in a cloud-native setup.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
at the client's siteagile
This is how we work on a project
- Continuous Deployment
- Continuous Integration
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.
What we offer
- Flexible cooperation model
- Hybrid work setup – 2 days a week from the office
- 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
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Tech Lead
30k–33k zł / mth. (B2B)
I apply to:
Mindbox Sp. z o.o.
Kraków, Lesser Poland
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