Fullstack Java Developer

Growth through diversity, equity, and inclusion. As an ethical business, we do what is right — including ensuring equal opportunities and fostering a safe, respectful workplace for each of us. We believe diversity fuels both personal and business growth. We're committed to building an inclusive community where all our people thrive regardless of their backgrounds, identities, or other personal characteristics.

What You’ll Be Doing

Designing, developing, and maintaining the server-side logic of web applications. Implementing scalable and efficient server-side components and APIs.
Build React/Next.js based applications.
Working with relational and/or NoSQL databases to store and retrieve data efficiently. Designing and optimizing database schemas for performance and scalability.
Integrating third-party APIs and web services to enhance application functionality. Developing custom APIs to facilitate communication between front-end and back-end systems.
Implementing security best practices to protect against common web application vulnerabilities. Conducting regular security audits and implement necessary measures.
Optimization: optimizing server-side code for maximum speed and scalability. Monitoring and troubleshooting performance issues.
Collaborating with front-end developers, UI/UX designers, and other team members to ensure seamless integration of components.
Using version control systems (e.g., Git) to manage and track changes to the codebase.
Conducting thorough testing of server-side components to identify and fix bugs.
Collaborating with QA engineers for comprehensive testing.
Clear and comprehensive documentation for back-end systems and APIs.

What We’re Looking For

At least 4 years of experience in a similar position.
Proficiency in Java server-side programming.
Thorough understanding of React/Next.js core principles along with React router, hooks, Redux (or the like) workflows, Web performance and security.
Experience with database systems (e.g., MySQL, PostgreSQL, MongoDB).
Proven experience in back-end development and building scalable web applications.
Familiarity with cloud platforms (e.g., AWS, Azure, GCP) is a plus.
Previous experience in Front-end development with Docker is plus.
Experience with NodeJS is a plus.
Strong analytical and problem-solving skills with attention to detail.
Effective communication skills to collaborate with cross-functional teams.
Ability to adapt to changing project requirements and technologies.
English at least B2.

Offer

Stable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites.
“Office as an option” model. You can choose to work remotely or in the office.
Workation. Enjoy working from inspiring locations in line with our workation policy.
Great Place to Work® certified employer.
Flexibility regarding working hours and your preferred form of contract.
Comprehensive online onboarding program with a “Buddy” from day 1.
Cooperation with top-tier engineers and experts.
Unlimited access to the Udemy learning platform from day 1.
Certificate training programs. Lingarians earn 500+ technology certificates yearly.
Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly.
Grow as we grow as a company. 76% of our managers are internal promotions.
A diverse, inclusive, and values-driven community.
Autonomy to choose the way you work. We trust your ideas.
Create our community together. Refer your friends to receive bonuses.
Activities to support your well-being and health.
Plenty of opportunities to donate to charities and support the environment.
Modern office equipment. Purchased for you or available to borrow, depending on your location.

Details

Location

Poland

Experience

Min. 4 yearsAt least 4 years of experience in a similar position.

Technologies

What You’ll Be Doing

Designing, developing, and maintaining the server-side logic of web applications. Implementing scalable and efficient server-side components and APIs.
Build React/Next.js based applications.
Working with relational and/or NoSQL databases to store and retrieve data efficiently. Designing and optimizing database schemas for performance and scalability.
Integrating third-party APIs and web services to enhance application functionality. Developing custom APIs to facilitate communication between front-end and back-end systems.
Implementing security best practices to protect against common web application vulnerabilities. Conducting regular security audits and implement necessary measures.
Optimization: optimizing server-side code for maximum speed and scalability. Monitoring and troubleshooting performance issues.
Collaborating with front-end developers, UI/UX designers, and other team members to ensure seamless integration of components.
Using version control systems (e.g., Git) to manage and track changes to the codebase.
Conducting thorough testing of server-side components to identify and fix bugs.
Collaborating with QA engineers for comprehensive testing.
Clear and comprehensive documentation for back-end systems and APIs.

What We’re Looking For

At least 4 years of experience in a similar position.
Proficiency in Java server-side programming.
Thorough understanding of React/Next.js core principles along with React router, hooks, Redux (or the like) workflows, Web performance and security.
Experience with database systems (e.g., MySQL, PostgreSQL, MongoDB).
Proven experience in back-end development and building scalable web applications.
Familiarity with cloud platforms (e.g., AWS, Azure, GCP) is a plus.
Previous experience in Front-end development with Docker is plus.
Experience with NodeJS is a plus.
Strong analytical and problem-solving skills with attention to detail.
Effective communication skills to collaborate with cross-functional teams.
Ability to adapt to changing project requirements and technologies.
English at least B2.

Offer

Stable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites.
“Office as an option” model. You can choose to work remotely or in the office.
Workation. Enjoy working from inspiring locations in line with our workation policy.
Great Place to Work® certified employer.
Flexibility regarding working hours and your preferred form of contract.
Comprehensive online onboarding program with a “Buddy” from day 1.
Cooperation with top-tier engineers and experts.
Unlimited access to the Udemy learning platform from day 1.
Certificate training programs. Lingarians earn 500+ technology certificates yearly.
Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly.
Grow as we grow as a company. 76% of our managers are internal promotions.
A diverse, inclusive, and values-driven community.
Autonomy to choose the way you work. We trust your ideas.
Create our community together. Refer your friends to receive bonuses.
Activities to support your well-being and health.
Plenty of opportunities to donate to charities and support the environment.
Modern office equipment. Purchased for you or available to borrow, depending on your location.