Senior Java Developer

Instinctools; Polska; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Flexible remote work

Job summary

instinctools is seeking a Senior Java Developer to join a project with a top-tier client, delivering backend systems in Java/Spring Boot. The role emphasizes applying AI tools to accelerate development and solve complex problems, with flexibility to work across technologies and collaborate with distributed teams.

Ideal candidates will have 5+ years of software development experience, strong Java/Spring Boot skills, and knowledge of AI tool usage.

Qualifications

• 5+ years of professional software development experience.
• Strong hands-on Java and Spring Boot expertise.
• Good knowledge of AI tools and their practical applications.
• Ability to leverage AI tools for tasks beyond primary stack.
• Flexibility to work with different technologies.

Responsibilities

• Develop and maintain backend applications using Java and Spring Boot.
• Design scalable and reliable software solutions.
• Collaborate with distributed teams.
• Leverage AI tools to accelerate delivery.

Skills

Java

Spring Boot

AI tools usage

Adaptability

Independent work

Tools

Python scripting

Next.js

AWS Glue Jobs

Generative AI

Job description

*instinctools is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements.

*instinctools is looking for a Senior Java Developerfor one of our clients.

Location: Poland

Client: our client is one of the TOP-5 global management consulting firms, considered to be among the most prestigious ones in the world. Hundreds of customers from Fortune-500, including the largest global financial institutions, the world’s top media companies, technology companies and federal government agencies rely on our Client’s proven platform and services.

Project: refers to the firm’s structured, multi-billion-dollar open ecosystem of strategic alliances, deep technology integrations, and specialized acquisitions . It is designed to move clients rapidly from strategy to production-scale execution—particularly in the era of Generative AI, cloud transformation, and advanced analytics .

Responsibilities and Tasks:

• Develop and maintain backend applications using Java and Spring Boot.
• Design scalable and reliable software solutions.
• Collaborate with distributed teams throughout the software development lifecycle.
• Leverage AI tools to accelerate delivery, improve productivity, and solve technical challenges outside the primary technology stack when required.

Our expectations of the ideal candidate:

5+ years of professional software development experience.

Strong hands-on expertise in Java and Spring Boot as the primary technology stack.

Good knowledge of AI tools and their practical application in software development.

Ability to leverage AI tools to complete tasks outside the primary technology stack.

Flexibility to work with different technologies and adapt to varying technical requirements.

Note: Hands-on expertise in all the above technologies is not mandatory. These are examples of adjacent tasks that engineers should be capable of handling with AI assistance.

English: Upper-Intermediate or higher

Nice to have:

You should be capable of handling tasks involving the following technologies with the assistance of AI tools:

• P ython scripting.
• Next.js.
• AWS Glue Jobs.
• Generative AI and prompt engineering.

Soft Skills:

Strong self-management and ability to work independently while meeting deadlines

Effective and clear communicator

Collaborative and open to feedback, with a focus on shared goals

Strong problem-solving ability, especially in ambiguous contexts

High attention to detail and product quality

Adaptability to shifting priorities and emerging technologies

We offer:

Work on a product for a TOP-5 global management consulting firm — the kind of line that carries weight on your CV for the rest of your career.

• Direct collaboration with experienced engineering team.
• Flexible remote work within approved locations
• A real team, not a staffing bench: a collaborative environment, direct access to your delivery manager, and ongoing support throughout your work on the project.
• Structured feedback and ongoing communication with both the project team and your delivery manager.
• Professional and highly collaborative engineering culture focused on knowledge sharing and continuous improvement.
• Learning and development are part of how we work: the company supports your growth and creates opportunities to explore new technologies.

Important Notice Regarding Your Personal Data Security

At *instinctools, we take the security of your personal data very seriously. Please be informed that all official communication, offers, and correspondence from *instinctools are conducted only through our verified company resources, including:
Official Email Domain: @instinctools.com
Company Website: https://www.instinctools.com
Important Reminder:
*instinctools will NEVER ask for sensitive personal or financial information, including:
– Bank account details
– Credit/debit card numbers
– Passwords or PINs
If you receive any suspicious requests claiming to be from *instinctools via unofficial channels (e.g., personal emails, social media DMs, or phone calls), please:
– Do not respond or share any information.
– Report it immediately to [e-mail] or your official contact.
Your trust and security are our top priorities. For any questions, always verify through our official channels.

Thank you for your attention and cooperation.

Developers

*instinctools is a developer of IT solutions for Western Europe. We have over 350 projects in our portfolio. The spheres are different – from healthcare and medicine, training and education, to digital advertising, economics and IT. For the software implementation and maintenance across such a number of projects, competent developers are important.

We use a modern technology stack, the key of which are: