Software Engineer (Python)

🏢 Summary: Software Engineer role focused on developing and maintaining aviation systems for modern aircraft, contributing to development, integration, and testing of avionics software. The position involves working with real-time and embedded environments to ensure high quality, safety, and reliability of aerospace solutions. 🗂️ Requirements: Minimum 2 years of experience in software development, Experience in C++, Bachelor of Science degree in Engineering or related field, English proficiency at B2 level or higher, Experience with RTOS, Experience with Linux 📃 Skills: C++, RTOS, Linux, REST, SOAP, VirtualBox, QEMU, Vagrant, Yocto, VxWorks, Deos, FreeRTOS 🏢 Description: Join a global aerospace and technology company that designs advanced avionics and digital solutions for modern aircraft. As a Software Engineer, you will help create and maintain aviation systems used in the aerospace industry worldwide. Key responsibilities Developing software for aviation systems using appropriate techniques and tools Participating in engineering activities (development, integration, testing) Executing the project plan together with the team Contributing to the improvement of quality, safety, and reliability of products Ideal candidate profile 2+ years of professional experience in a similar position Experience in C++ Bachelor of Science degree in Engineering Technology, including Manufacturing Engineering Technology (e.g., chemistry, physics, mathematics). A degree in Aerospace Engineering is a strong advantage English proficiency (minimum B2 level) Experience with RTOS (Real-Time Operating Systems) Experience with Linux Nice to have Experience in developing web services (REST, SOAP, etc.) Experience in virtualization techniques (VirtualBox, QEMU, Vagrant, etc.) Experience in embedded programming (Yocto Project, VxWorks, Deos, FreeRTOS, etc. Conditions Location: Hybrid work model based in Gdańsk or Rzeszów Contract type: UoP (employment contract) Salary: depending on experience and expectations Benefits : flexible working hours, additional paid days off during the holiday season, Learning Together program, MyBenefit program, Employee Recognition Program, medical care, life insurance, Employee Pension Plan (PPE), technical and certification training Recruitment steps Phone call with a recruiter Interview with the client Decision and feedback

🏢 Summary: The role involves designing, developing, integrating, and testing Java-based avionics software for complex, safety-critical aircraft systems. You will work in an agile, international environment using modern technologies to deliver high-quality, reliable solutions for the aviation industry. The position focuses on software quality, safety, and continuous improvement within advanced aerospace projects. 🗂️ Requirements: Bachelor’s degree in engineering, computer science, mathematics or related technical field, Minimum 4 years of experience with Java, Strong object-oriented design skills, Experience developing web services (REST, SOAP), Knowledge or experience with containerization technologies, Very good command of English 📃 Skills: Java, OOP, REST, SOAP, Docker, OCI, Agile 🏢 Description: Are you Java Engineer who enjoys working with complex, safety-critical systems? Would you like to develop advanced avionics software used in modern aircraft and future urban air mobility solutions? Join an international engineering team in Gdańsk and build reliable, high‑quality systems for the aviation industry. In this role you will work in a modern tech stack, in an agile environment, with strong focus on quality, safety and continuous improvement. If you are ready for your next step in an international setting – apply today! Key responsibilities Design, develop, integrate and test Java software for avionics and complex electronic systems used in aircraft and related platforms Use modern programming techniques, tools, languages and agile methodologies to deliver high‑quality software components Contribute proactively to project execution plans, helping to define and achieve operational and delivery goals Drive continuous improvements in software engineering processes, product quality, safety and reliability Collaborate closely with customers, stakeholders and international peers to understand requirements and performance expectations Support building a positive team culture, knowledge sharing and high motivation within the engineering team Ideal candidate profile Bachelor’s degree in engineering, computer science, mathematics or a related technical field - required 4 years of experience with Java and object‑oriented design Experience in developing web services (e.g. REST, SOAP) Experience or strong interest in containerization technologies (e.g. Docker, OCI) Comfortable working in international, multi‑national project teams Very good command of English Conditions Location: Gdańsk, Poland Work Model: Hybrid Employment Type: Regular employment (UoP) - direct employment by the client, Salary: Base salary with performance‑based bonus structure and a range of additional benefits Recruitment steps Initial call with a KUBO recruiter Interview(s) with the client Decision and feedback

🏢 Summary: The offer is for a Java Engineer to develop, integrate and test safety‑critical avionics software for modern aircraft and urban air mobility solutions. The role involves working in an agile, international environment with a strong focus on quality, safety and continuous improvement. The position is based in Gdańsk with a hybrid work model. 🗂️ Requirements: Bachelor’s degree in engineering, computer science, mathematics or related field, Commercial experience with Java, Experience with object-oriented design, Experience developing web services (REST or SOAP), Experience or strong interest in containerization, Very good command of English 📃 Skills: Java, OOP, REST, SOAP, Docker, OCI, Agile 🏢 Description: Are you an experienced Java Engineer who enjoys working with complex, safety-critical systems? Would you like to develop advanced avionics software used in modern aircraft and future urban air mobility solutions? Join an international engineering team in Gdańsk and build reliable, high‑quality systems for the aviation industry. In this role you will work in a modern tech stack, in an agile environment, with strong focus on quality, safety and continuous improvement. If you are ready for your next step in an international setting – apply today! Key responsibilities Design, develop, integrate and test Java software for avionics and complex electronic systems used in aircraft and related platforms Use modern programming techniques, tools, languages and agile methodologies to deliver high‑quality software components Contribute proactively to project execution plans, helping to define and achieve operational and delivery goals Drive continuous improvements in software engineering processes, product quality, safety and reliability Collaborate closely with customers, stakeholders and international peers to understand requirements and performance expectations Support building a positive team culture, knowledge sharing and high motivation within the engineering team Ideal candidate profile Bachelor’s degree in engineering, computer science, mathematics or a related technical field Solid commercial experience with Java and object‑oriented design Experience in developing web services (e.g. REST, SOAP) Experience or strong interest in containerization technologies (e.g. Docker, OCI) Comfortable working in international, multi‑national project teams Strong willingness to learn new technologies and domains Very good command of English Conditions Location: Gdańsk, Poland Work Model: Hybrid Employment Type: Regular employment (UoP) Salary: Market‑competitive base salary with performance‑based bonus structure and a range of additional benefits Recruitment steps Initial call with a KUBO recruiter Interview(s) with the client Decision and feedback

🏢 Summary: The offer is for a Python Test Automation Engineer working on a mission-critical flight management system in the aviation sector. The role focuses on building and improving automated testing frameworks, enhancing test efficiency, and maintaining high quality standards in a distributed, international environment. Responsibilities include developing Python-based tests, expanding automation coverage, and supporting BDD practices. 🗂️ Requirements: Minimum 3 years of Python development experience, Experience in UI test automation with Selenium, Hands-on experience with Cucumber/Gherkin, Experience in API testing using Postman and Swagger 📃 Skills: Python, Selenium, Cucumber, Gherkin, Postman, Swagger, BDD, API, Automation, Testing 🏢 Description: We are seeking a highly skilled Python Test Automation Engineer to join our team! The project operates in the aviation sector and involves a mission-critical flight management system used in a highly regulated environment. It is developed and maintained by multiple international teams working in a distributed setup. The system we are working on is complex, so our goal is to improve test efficiency, scalability, and overall quality through a more standardized and maintainable approach. Your tasks Writing new tests in Python Developing a testing framework using Selenium Working with Cucumber/Gherkin Focusing on refactoring existing test suites and expanding automation Improving test efficiency Requirements Minimum 3 years of Python development experience Experience in UI test automation in Selenium Hands-on experience in Cucumber/Gherkin to drive BDD-based software development API Testing using Postman, Swagger English at an advanced level Residing in Poland required Nice-to-have requirements Knowledge of CI/CD processes (Jenkins or other tools) Experience in working with GitHub What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Engineering role focused on building and maintaining mission‑critical Python backend services for aviation platforms used by airlines and flight operations worldwide. The position covers the full software lifecycle, from design and implementation to deployment and production support, in close collaboration with domain experts. Work involves developing reliable, high‑availability systems in a demanding, always‑on environment. 🗂️ Requirements: Commercial experience in software development (3+ years mid or 8+ years senior, or strong entry‑level profile), Hands‑on experience with Python in production environments, Experience building backend services and APIs, Experience with automated testing and code reviews, Ability to troubleshoot and debug production systems, Fluent English for technical collaboration, Availability for occasional business travel within Europe 📃 Skills: Python, API, REST, Backend, Testing, Debugging, Git, AWS, Docker, Kubernetes, Java, Spring, Rave 🏢 Description: Do you want to build software in Python and work on systems that directly support airlines and flight operations? Would you like to combine hands‑on engineering with close collaboration with business stakeholders in the aviation domain? We are partnering with aviation customers to grow their engineering and implementation teams and are hiring several profiles: entry‑level, mid‑level and senior engineers. You will contribute to a mission‑critical aviation platform relied on by airlines, pilots and fleet operators around the world. The products operate in a demanding environment, where reliability, accuracy and always‑on availability are essential. You’ll work with experienced engineers and domain experts, shaping core capabilities end‑to‑end – from early discovery and design through delivery to continuous improvement. Key responsibilities Design, develop and maintain backend services for aviation‑related products. Collaborate with product and domain experts to understand requirements and translate them into technical solutions. Move comfortably between technical details and business context, supporting both engineering teams and end users. Take part in the full development lifecycle: design, implementation, code reviews, automated testing and deployment. Troubleshoot and debug production issues, improve reliability and performance, and suggest technical improvements. Ideal candidate profile 3+ years (Mid) or 8+ years (Senior) of experience in software development or a similar engineering role. We can also accept entry level applications if other qualifications are a good match. In simple words - we are building a diverse team! Comfortable working with Python in a production environment (services, APIs, data processing). Fluent in English and used to working with international clients and distributed teams. Open to occasional business travel within Europe. Able to move between technical detail and business context with ease. Nice to have Experience in aviation (e.g. crew planning or airline operations). Experience with Java (e.g. Spring Boot) or another programming language. Rave programming language. Experience as Product Owner or similar role close to the business. Background in large software implementation projects at customers. Exposure to AWS or another cloud platform, test automation frameworks, Docker / Kubernetes. Interest in AI tools and how they can support engineering work. What matters most Ownership mindset and a proactive approach to problems. Strong communication skills with both engineers and business stakeholders/clients. Flexibility and ability to adapt in dynamic, changing environments. Conditions Location: Gothenburg or Gdańsk Work Model: Hybrid from the office in Gothenburg/Gdańsk or fully remote across Poland. Employment Type: B2B contract via KUBO; employment contract also possible. Salary: Competitive, aligned with your seniority and form of cooperation + additional wellbeing & training benefits Recruitment steps Initial call with a KUBO recruiter (and optional technical tests) Interview(s) with the client (in June) Decision, feedback and support through offer and onboarding The start of the assignment will be no earlier than in the second half of August

🏢 Summary: Software Engineer role focused on modernizing a mission-critical aviation platform by developing cloud-hosted backend services and scalable cloud-native solutions in AWS. The position involves backend modernization, Kubernetes and container management, CI/CD automation, and operational reliability improvements in a distributed engineering environment. The role offers hybrid work flexibility, B2B or UoP employment, and benefits including healthcare and life insurance. 🗂️ Requirements: Experience developing backend applications in cloud environments, Strong knowledge of AWS and cloud-native architectures, Hands-on experience with Linux, Hands-on experience with Docker, Hands-on experience with Apache, Hands-on experience with Java, Hands-on experience with Spring Boot, Experience with Kubernetes and containerized workloads, Experience with CI/CD, Experience with Infrastructure as Code, Experience with automation, Understanding of cloud security, Understanding of monitoring and production support practices, Strong troubleshooting and problem-solving skills, Ability to work independently and collaborate within distributed teams, English level B2 or higher 📃 Skills: AWS, Linux, Docker, Apache, Java, Spring, Kubernetes, CI/CD, IaC, Automation, SQL, MySQL, Security, Monitoring 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Strong knowledge of AWS and cloud-native architectures Hands-on experience with Linux, Docker, Apache, Java and Spring Boot Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a month in the office in Gdańsk or less frequently, depending on your availability Salary: 190 PLN net/h - to negotiate Benefits: life insurance, private healthcare, Multisport card

🏢 Summary: The offer is for a Software Engineer to modernize and develop cloud-hosted backend services for a mission-critical aviation platform used globally. The role focuses on building scalable, resilient, cloud-native solutions in AWS, improving automation, CI/CD, and Kubernetes-based environments. You will contribute to transforming a legacy system into a modern, secure, and highly scalable ecosystem. 🗂️ Requirements: Experience developing backend applications in cloud environments, Hands-on experience with Linux, Docker, Apache, PHP, Strong knowledge of AWS and cloud-native architectures, Experience with Kubernetes and containerized workloads, Experience with CI/CD and Infrastructure as Code, Knowledge of cloud security and monitoring practices, Ability to troubleshoot production systems, English B2 level or higher 📃 Skills: AWS, Linux, Docker, Apache, PHP, Kubernetes, CI/CD, IaC, SQL, MySQL, SQLServer, AI 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Hands-on experience with Linux, Docker, Apache, and PHP or Java Strong knowledge of AWS and cloud-native architectures Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a week in the office in Gdańsk or less frequently, depending on your availability Salary: up to 190 PLN net/h Benefits: life insurance, private healthcare, Multisport card Recruitment steps Recruitment call with Agnieszka from KUBO Client interview (may require 2 rounds) Feedback and decision

🏢 Summary: Opportunity to modernize a mission-critical aviation platform by designing and developing cloud-hosted backend services in a scalable, cloud-native AWS environment. The role focuses on building resilient APIs, improving automation and CI/CD pipelines, and managing Kubernetes-based infrastructure to support global aviation data distribution. You will contribute to a large-scale modernization initiative emphasizing scalability, security, and operational excellence. 🗂️ Requirements: Experience developing backend applications in cloud environments, Hands-on experience with Linux, Docker, Apache, and PHP or Java, Strong knowledge of AWS and cloud-native architectures, Experience with Kubernetes and containerized workloads, Experience with CI/CD and Infrastructure as Code, Understanding of cloud security, monitoring, and production support practices, Strong troubleshooting and problem-solving skills, English proficiency at minimum B2 level 📃 Skills: AWS, Linux, Docker, Apache, PHP, Java, Kubernetes, CI/CD, IaC, SQL, SQLServer, MySQL, AI 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Hands-on experience with Linux, Docker, Apache, and PHP or Java Strong knowledge of AWS and cloud-native architectures Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a week in the office in Gdańsk or less frequently, depending on your availability Salary: up to 190 PLN net/h Benefits: life insurance, private healthcare, Multisport card Recruitment steps Recruitment call with Agnieszka from KUBO Client interview (may require 2 rounds) Feedback and decision

🏢 Summary: The offer is for an experienced Software Engineer (JS/TS) to develop advanced avionics and aerospace frontend solutions within an international engineering team. The role focuses on building high-performance, accessible web applications, owning features end-to-end, and ensuring code quality through testing and collaboration. It is a hybrid position based in Gdańsk with competitive salary and performance-based bonuses. 🗂️ Requirements: Minimum 3 years of professional frontend development experience, Bachelor’s degree in engineering, computer science, mathematics, or related technical field, Practical experience with at least two JavaScript frameworks (React or Next.js), Strong proficiency in TypeScript, Strong knowledge of HTML5 and CSS3, Experience with frontend testing frameworks (Jest, Testing Library, Cypress or similar), Familiarity with Docker and containerized development workflows 📃 Skills: JavaScript, TypeScript, React, Next.js, HTML5, CSS3, Jest, Testing, Cypress, Docker 🏢 Description: For our client from the aviation industry, we are looking for an experienced Software Engineer (JS/TS) to join an international engineering team working on advanced avionics and aerospace solutions. Key responsibilities Develop and maintain modern, responsive, accessible, and high-performance applications using JavaScript/TypeScript and contemporary frontend frameworks Take ownership of frontend features end-to-end, from concept and implementation through testing and release Create and maintain unit and integration tests to ensure high code quality and application reliability Conduct constructive code reviews and support team members by sharing best practices and technical guidance Work closely with product owners, UX/UI designers, backend developers, and QA engineers to deliver seamless user experiences Ideal candidate profile 3 years of hands-on experience in professional frontend development Bachelor’s degree in engineering, computer science, mathematics, or a related technical discipline Practical experience with two or more JavaScript frameworks (React or Next.js) Solid proficiency in TypeScript Strong knowledge of HTML5 and CSS3 Experience using frontend testing frameworks (such as Jest, Testing Library, Cypress, or similar) Familiarity with containerized development workflows and tools like Docker Location: Gdańsk, Poland Work Model: Hybrid Employment Type: Regular employment (UoP) Salary: Market‑competitive base salary with performance‑based bonus structure and a range of additional benefits Recruitment steps Initial call with a KUBO recruiter I interview with the client II interview with the client Decision and feedback

🏢 Summary: The offer is for an experienced Software Engineer (JS/TS) to develop advanced, high‑performance frontend applications for avionics and aerospace solutions within an international engineering team. The role covers end‑to‑end frontend feature ownership, testing, code reviews, and close collaboration with cross‑functional teams in a hybrid work model. 🗂️ Requirements: Minimum 3 years professional frontend development experience, Bachelor’s degree in engineering, computer science, mathematics or related field, Practical experience with at least two JavaScript frameworks, Strong proficiency in TypeScript, Strong knowledge of HTML5 and CSS3, Experience with frontend testing frameworks, Experience with containerized development and Docker 📃 Skills: JavaScript, TypeScript, React, Next.js, HTML5, CSS3, Jest, Testing, Cypress, Docker 🏢 Description: For our client from the aviation industry, we are looking for an experienced Software Engineer (JS/TS) to join an international engineering team working on advanced avionics and aerospace solutions. Key responsibilities Develop and maintain modern, responsive, accessible, and high-performance applications using JavaScript/TypeScript and contemporary frontend frameworks Take ownership of frontend features end-to-end, from concept and implementation through testing and release Create and maintain unit and integration tests to ensure high code quality and application reliability Conduct constructive code reviews and support team members by sharing best practices and technical guidance Work closely with product owners, UX/UI designers, backend developers, and QA engineers to deliver seamless user experiences Ideal candidate profile 3 years of hands-on experience in professional frontend development Bachelor’s degree in engineering, computer science, mathematics, or a related technical discipline Practical experience with two or more JavaScript frameworks (React or Next.js) Solid proficiency in TypeScript Strong knowledge of HTML5 and CSS3 Experience using frontend testing frameworks (such as Jest, Testing Library, Cypress, or similar) Familiarity with containerized development workflows and tools like Docker Location: Gdańsk, Poland Work Model: Hybrid Employment Type: Regular employment (UoP) Salary: Market‑competitive base salary with performance‑based bonus structure and a range of additional benefits Recruitment steps Initial call with a KUBO recruiter I interview with the client II interview with the client Decision and feedback