Senior Fullstack Engineer NEW

Jit; Kraków; Ibrido; PLN 180.000 - 250.000; Tempo pieno

Vantaggi offerti da questo lavoro

Flexible work organization

The Jit Community

Descrizione del lavoro

Jit is hiring a Senior Backend Engineer for a large-scale cloud-based fintech project in Poland. You will join an international team building scalable applications used by millions.

You will work with Python, Node.js, React/Next.js, Kafka, and REST APIs, designing event-driven systems and distributed patterns like Saga and Outbox. The role offers elastic hybrid work with monthly office visits in Warsaw, Kraków, or Tricity.

Competenze

• 5+ years of commercial experience as a Software Engineer.
• Hands-on Python and Node.js experience.
• Strong full-stack engineering experience across backend and frontend.
• Experience designing event-driven systems and REST APIs.
• Experience with Kafka and distributed systems patterns such as Saga/Outbox/Idempotency.
• Good communication in English (B2).

Mansioni

• Develop scalable, highly available applications for millions of users.
• Collaborate in an international engineering team on a fintech initiative.
• Contribute to cloud-based architecture and modern tech stack.

Conoscenze

Software Engineer

Python

Node.js

Full-stack engineering

Event-driven systems

React / Next.js

Kafka

REST APIs

Distributed systems patterns

English (B2)

Descrizione del lavoro

Work Model: elastic hybrid – an office visit once a month in Warsaw, Kraków, or the Tricity area

Why choose this offer?

• You can expect a flexible work organization
• You will work for one of Poland’s leading organizations in the logistics and e-commerce industry
• Your software will be used by millions of users, giving you the chance to make a real impact
• The international work environment will give you the opportunity to work with leading experts from different teams and areas
• The Jit Community will bring you a nice time during regular integration meetings

Project

You will be involved in a large-scale, cloud-based software project for one of Poland’s leading organizations in the logistics and e-commerce industry. As a Senior Backend Engineer, you will work in an international engineering team focused on building highly scalable and highly available applications that solve real-world problems for millions of users. This is an opportunity to join a well-established and rapidly growing Polish business and contribute to the development of a new fintech initiative from its early stages.

Expected competences and knowledge

• 5+ years of commercial experience as a Software Engineer, including hands-on experience with Python and Node.js
• Strong full-stack engineering experience across backend and frontend development
• Experience designing and developingevent-driven systems
• Hands-on experience with React and/or Next.js
• Experience with Kafka and event-driven architectures
• Strong understanding of REST APIs and asynchronous communication
• Experience with state machines and distributed systems patterns such as Saga, Outbox and Idempotency
• Understanding of authorization flows, ledger and settlement processes
• Good communication skills in English (min. B2 level)
• Nice to have:
  • Knowledge of software security and compliance requirements, including PCI DSS and PSD2
  • Familiarity with KYC/KYB processes
  • Experience working in international and cross-functional engineering teams

Technologies you'll work with

• Python
• Node.js
• React / Next.js
• REST APIs
• Event-driven architecture
• State machines
• Distributed systems

About Jit Team

The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.