Senior Software Engineer (Backend/REST)

Salary: 1200 - 1320 PLN/ Day (B2B) net + vat

Remote: remote / hybrid from Warszawa/ Gdańsk/ Kraków

Why choose this offer?

• Work on the architecture of high-performance backend solutions where scalability, reliability, and innovation truly matter

• Your work will help create more sustainable, cost-efficient and environment friendly heating and cooling solutions

• The Jit community will bring you a nice time during regular integration meetings

• You will join a collaborative engineering environment where you influence architecture and realtechnical decisions

Project

We are looking for a Senior Software Engineer to join a project focused on developing scalable backend solutions for distributed IoT and industrial systems. You will be responsible for designing and building high-performance services that enable reliable communication, data processing, and integration across modern cloud-native environments.

You'll work closely with cross-functional engineering teams to design scalable microservices, optimize system performance, and deliver reliable software that supports business-critical applications.

Responsibilities

• Design, develop, and maintain backend applications using Rust

• Build and evolve microservice-based architectures

• Develop scalable and resilient services for processing and exchanging data across distributed systems

• Design and implement event-driven solutions using Apache Kafka

• Work with Redis for caching and high-performance data access

• Deploy and maintain applications running on Kubernetes

• Collaborate with architects, developers, QA engineers, and DevOps teams throughout the software development lifecycle

• Participate in code reviews and contribute to engineering best practices

• Troubleshoot, optimize, and improve the performance, reliability, and scalability of existing solutions

Expected competences and knowledge

• 5+ years of experience in backend software development

• Commercial experience with Rust

• Strong understanding of microservice architecture and distributed systems

• Experience working with Apache Kafka

• Experience with Redis

• Hands-on experience with Kubernetes and containerized applications

• Good understanding of REST APIs and asynchronous communication patterns

• Experience with Git and CI/CD pipelines

• Strong problem-solving skills and the ability to work independently

• Good communication skills and fluent English

Nice to have

• Experience in IoT, industrial systems, or edge computing

• Experience with cloud platforms (AWS, Azure, or GCP)

• Knowledge of monitoring and observability tools

• Familiarity with DevOps practices and Infrastructure as Code

• Experience with event-driven architectures and message brokers beyond Kafka

Technologies you'll work with

• Rust

• Apache Kafka

• Redis

• Kubernetes

• Microservices

• Distributed Systems

• REST APIs

• Asynchronous Communication

• Git

• CI/CD

Client – why choose this particular client from the Jit portfolio?

Our Client engineers technologies that enable the world of tomorrow to do more with less. They meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions. Their products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Their innovative engineering dates back to 1933 and today our Client is a world-leader, employing more than 27,000 employees and serving customers in more than 100 countries. They are still privately held by the founding family.

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.