Fullstack Developer (Python/React)

🏢 Summary: Full-stack engineering role focused on designing and developing modern cloud-native applications using Java and React for global enterprise clients. The position involves end-to-end feature delivery, architectural participation, and close collaboration with business stakeholders in an Agile environment. You will contribute to scalable, high-quality solutions while leveraging AI-driven tools and modern CI/CD practices. 🗂️ Requirements: 3+ years of experience in full-stack development with Java and React, Experience with CI/CD pipelines and modern software delivery practices, Understanding of RESTful APIs, microservices architecture, and distributed systems, Hands-on experience with cloud-native applications and cloud deployments, Knowledge of software design principles, testing strategies, and code quality standards, Experience using AI/LLM-powered tools in a professional environment, Ability to work in Agile teams and collaborate with technical and non-technical stakeholders, Very good command of English and Polish (B2+/C1) 📃 Skills: Java, React, CI/CD, REST, Microservices, DistributedSystems, Cloud, AI, LLM, Agile, Python, Databricks 🏢 Description: Grape Up is a consulting & technology company, helping enterprises create the most important applications by leveraging AI & cloud-native technologies and modern ways of delivering software. Grape Up is a consulting and technology company helping enterprises build mission-critical applications by leveraging AI, cloud-native technologies, and modern software delivery practices. As a member of our team, you will collaborate with both Grape Up engineers and client-side specialists to develop innovative digital products. You will be involved in building new solutions, delivering impactful features, and contributing to the continuous evolution of products used by thousands of users worldwide. Beyond day-to-day development, you will have the opportunity to influence technical decisions, shape system architecture, drive quality improvements, and promote engineering best practices across the project. Working closely with business stakeholders, product teams, and end users, you will help turn business needs into valuable, scalable solutions. At Grape Up, we believe in long-term career growth rather than short-term assignments. We provide the flexibility to explore new technologies, industries, and challenges while working on ambitious projects for global enterprises. By joining us, you will become part of a culture that values ownership, continuous learning, collaboration, and engineering excellence. Responsibilities Design, develop, and maintain modern cloud-native applications using Java and React Deliver new features and enhancements across the entire technology stack, from backend services to user-facing interfaces Collaborate closely with business stakeholders, Product Owners, and cross-functional teams to translate business needs into technical solutions Participate in system architecture discussions and contribute to technical decision-making Ensure high software quality through code reviews, automated testing, and continuous improvement initiatives Promote engineering best practices, coding standards, and maintainable software design Continuously seek opportunities to improve development processes, tools, and the overall product quality Be part of an Agile team that values teamwork, feedback, and continuous improvement Requirements 3+ years of experience in full-stack software development using Java and React Experience with CI/CD pipelines and modern software delivery practices Good understanding of RESTful APIs, microservices architecture, and distributed systems Hands-on experience in building cloud-native applications and deploying solutions to cloud environments Understanding of software design principles, testing strategies, and code quality standards Experience in using AI/LLM-powered tools in a professional context Ability to work effectively in Agile teams and collaborate with both technical and non-technical stakeholders Strong problem-solving skills and a proactive approach to delivering business value Very good command of English and Polish, both written and spoken (B2+/C1) – daily collaboration within the team takes place in English Nice to have Knowledge of Python Experience in Databricks Openness to (short) Business Trips, both domestic and foreign Benefits Non-corporate work environment among experienced engineers Individual growth & development plan supported by cyclical feedback sessions Access to knowledge platforms (e.g. Pluralsight) Equipment of your choice Financing of conferences, external trainings, and certifications Language lessons (English, German and Polish for foreigners) LuxMed private medical care Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge Employee referral program Rewards for the success of the month and year awarded by our employees Special rewards for your years with us (G-Man) Integration activities

🏢 Summary: Development of a cloud-native vehicle connectivity platform using Java and Spring on AWS, focused on microservices and enterprise integrations. The role involves designing, building, and maintaining scalable backend services integrated with multiple internal and external systems. The position requires active participation in DevOps-driven delivery within an agile environment. 🗂️ Requirements: 5+ years of experience with Java and Spring, Hands-on experience building cloud-native microservices, Experience with AWS services (EKS, SQS, SNS), Experience with DynamoDB, Working knowledge of Git, Experience with Kafka, Experience with Terraform, Experience with JIRA and Confluence, Experience working in Scrum or SAFe 📃 Skills: Java, Spring, AWS, EKS, SQS, SNS, DynamoDB, Microservices, Git, Kafka, Terraform, JIRA, Confluence, Scrum, SAFe 🏢 Description: Grape Up is a consulting and technology company that helps enterprises build their most critical applications using cloud-native technologies and modern software delivery practices. In collaboration with a legendary sports car manufacturer, we are building modern enterprise cloud solutions. Our team is responsible for implementing and maintaining the vehicle’s primary connectivity service – a central gateway for booking and managing mobile data packages within the vehicle. As a part of the complex architecture, it has various integrations with both the front-end and back-end services within the client’s ecosystem. If you want to be a part of the automotive market transformation and would like to contribute – this is the place and time! Responsibilities Design and build cloud-native applications using Java and Spring on top of AWS (EKS, SQS, SNS) Create world-class solutions using microservices-based architectures utilizing the DevOps culture approach Leverage DBs (DynamoDB), storage, and APIs into cloud applications and integrate with external services Cooperate with client’s team to optimize and improve existing solutions Actively participate in Scrum ceremonies and other meetings with the client, Product Owner, or Technical Leaders Research, recommend, and integrate solutions to solve architectural and development challenges Ensure that designs meet performance, security, usability, reliability, and scalability requirements Deep understanding and validation of business requirements to create an optimal solution Requirements 5+ years of professional experience with Spring and Java Hands-on experience in building cloud-native applications using microservices and cloud deployment Working knowledge of Git, Kafka, Terraform Experience using JIRA and Confluence Experience in SCRUM or SAFE agile framework Good communication skills, openness Analytical thinking and problem-solving skills Flexibility to travel to customer workshops when needed Very good command of English and Polish, both written and spoken (B2+/C1) Nice to have Knowledge of JavaScript/TypeScript Experience in using AI/LLM-powered tools in a professional context (e.g. ChatGPT with IntelliJ, Copilot, OpenCode) Benefits of joining Grape Up Non-corporate work environment among experienced engineers Individual growth & development plan supported by cyclical feedback sessions Access to knowledge platforms (e.g. Pluralsight) Equipment of your choice In-house business and tech trainings, and meetups Financing of conferences, external trainings, and certifications Language lessons (English, German and Polish for foreigners) LuxMed private medical care, MultiSport Mental health care with Wellbee Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge Employee referral program Rewards for the success of the month and year awarded by our employees Integration activities & trips Business travel opportunities to the USA, Spain, Germany, Ireland, and many other destinations

🏢 Summary: Development of a cloud-native connectivity platform for vehicles, focused on building and maintaining a central gateway for managing in-car mobile data packages. The role involves designing and implementing microservices-based solutions using Java, Spring, and AWS within a complex enterprise ecosystem. It requires close collaboration with client teams and adherence to DevOps and agile practices. 🗂️ Requirements: 5+ years of experience with Java and Spring, Experience building cloud-native microservices applications, Hands-on experience with AWS cloud services, Experience with Git, Experience with Kafka, Experience with Terraform, Experience with JIRA and Confluence, Experience working in Scrum or SAFe framework, Very good English (B2+/C1) 📃 Skills: Java, Spring, AWS, EKS, SQS, SNS, DynamoDB, Microservices, Git, Kafka, Terraform, JIRA, Confluence, Scrum, SAFe, JavaScript, TypeScript 🏢 Description: Grape Up is a consulting and technology company that helps enterprises build their most critical applications using cloud-native technologies and modern software delivery practices. In collaboration with a legendary sports car manufacturer, we are building modern enterprise cloud solutions. Our team is responsible for implementing and maintaining the vehicle’s primary connectivity service – a central gateway for booking and managing mobile data packages within the vehicle. As a part of the complex architecture, it has various integrations with both the front-end and back-end services within the client’s ecosystem. If you want to be a part of the automotive market transformation and would like to contribute – this is the place and time! Responsibilities Design and build cloud-native applications using Java and Spring on top of AWS (EKS, SQS, SNS) Create world-class solutions using microservices-based architectures utilizing the DevOps culture approach Leverage DBs (DynamoDB), storage, and APIs into cloud applications and integrate with external services Cooperate with client’s team to optimize and improve existing solutions Actively participate in Scrum ceremonies and other meetings with the client, Product Owner, or Technical Leaders Research, recommend, and integrate solutions to solve architectural and development challenges Ensure that designs meet performance, security, usability, reliability, and scalability requirements Deep understanding and validation of business requirements to create an optimal solution Requirements 5+ years of professional experience with Spring and Java Hands-on experience in building cloud-native applications using microservices and cloud deployment Working knowledge of Git, Kafka, Terraform Experience using JIRA and Confluence Experience in SCRUM or SAFE agile framework Good communication skills, openness Analytical thinking and problem-solving skills Flexibility to travel to customer workshops when needed Very good command of English, both written and spoken (B2+/C1) Nice to have Knowledge of JavaScript/TypeScript Experience in using AI/LLM-powered tools in a professional context (e.g. ChatGPT with IntelliJ, Copilot, OpenCode) Benefits of joining Grape Up Non-corporate work environment among experienced engineers Individual growth & development plan supported by cyclical feedback sessions Access to knowledge platforms (e.g. Pluralsight) Equipment of your choice In-house business and tech trainings, and meetups Financing of conferences, external trainings, and certifications Language lessons (English, German and Polish for foreigners) LuxMed private medical care, MultiSport Mental health care with Wellbee Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge Employee referral program Rewards for the success of the month and year awarded by our employees Integration activities & trips Business travel opportunities to the USA, Spain, Germany, Ireland, and many other destinations

🏢 Summary: The offer is for a DevOps/Cloud Engineer role focused on building, operating, and improving an AWS-based on-prem data platform for large-scale engineering and R&D workloads. The position centers on Kubernetes cluster management, infrastructure as code, and CI/CD automation to ensure platform scalability, reliability, and observability. The role involves close collaboration with data engineering teams to support workload migration and platform enhancements. 🗂️ Requirements: Hands-on experience with AWS services (VPC, EC2, EKS, ECS, S3, IAM, Cognito), Strong production experience with Kubernetes, Practical knowledge of Infrastructure as Code tools (Terraform, CloudFormation), Experience with CI/CD pipelines and deployment automation (ArgoCD, GitHub Actions, GitLab CI/CD), Proficiency in Python, Experience automating infrastructure and platform operations 📃 Skills: AWS, Kubernetes, Terraform, CloudFormation, ArgoCD, GitHub, GitLab, Python, VPC, EC2, EKS, ECS, S3, IAM, Cognito 🏢 Description: Grape Up is a consulting & technology company helping enterprises create the most important applications by leveraging AI & cloud-native technologies and modern ways of delivering software. Our projects are based on cooperation with international clients from government and industries such as automotive, insurance and finance. In cooperation with our client, we are building and operating an on-prem data platform used for large-scale engineering and R&D data processing. Our role focuses on AWS-based infrastructure with Kubernetes, automation, and close collaboration with data engineering teams to ensure scalability and reliability. Responsibilities Maintain, operate, and continuously improve an AWS infrastructure using Terraform code Deploy, configure and manage multiple Kubernetes clusters Develop and maintain CI/CD pipelines and deployment processes using GitHub Actions, Gitlab CI/CD or ArgoCD Ensure high platform reliability, scalability, and observability through proper monitoring and logging solutions Automate infrastructure and platform operations using Python, including scripts or Ansible playbooks Collaborate closely with platform users and developers to support migration of workloads and improve observability and security Requirements Experience with AWS services (VPC, EC2, EKS, ECS, S3, IAM, Cognito and others) Strong hands-on experience with Kubernetes in production environments Solid knowledge of IaC tools (Terraform, CloudFormation) Experience with CI/CD pipelines and deployment automation (ArgoCD, Github Actions, Gitlab CI/CD or similar tools) Proficiency in at least one programming language – preferably Python Good communication skills, both written and spoken Good command of English (B2+/C1) Fluency in Polish (min. B2 level) Nice to have Experience with Azure, especially with AKS, VNet and Entra ID Knowledge of monitoring and logging in distributed systems (CloudWatch, Prometheus, Grafana, OpenTelemetry or equivalents) Experience supporting developers and platform users Benefits of joining Grape Up Non-corporate work environment among experienced engineers Individual growth & development plan supported by cyclical feedback sessions Access to knowledge platforms (e.g. Pluralsight) Equipment of your choice Financing of conferences, external trainings, and certifications Language lessons (English, German and Polish for foreigners) LuxMed private medical care Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge Employee referral program Rewards for the success of the month and year awarded by our employees Special rewards for your years with us (G-Man) Integration activities

🏢 Summary: Role focused on designing, deploying, and operating enterprise-grade OpenStack private cloud environments within an EU sovereign cloud platform for AI workloads. The position involves building automated infrastructure pipelines, ensuring high availability and security, and deploying solutions across customer data centers and EU-based cloud environments. You will contribute directly to the evolution and reliability of the cloud infrastructure layer. 🗂️ Requirements: 3+ years of production experience with OpenStack, Hands-on experience with core OpenStack services, Experience with Ceph distributed storage, Strong Linux system administration skills (Ubuntu preferred), Strong networking fundamentals, Experience with Terraform for infrastructure as code, Experience with Ansible for configuration management, Familiarity with CI/CD pipelines, Understanding of cloud security principles (network segmentation, IAM, secrets management) 📃 Skills: OpenStack, Ceph, Linux, Ubuntu, Terraform, Ansible, Networking, CICD, IAM, Security 🏢 Description: At Grape Up, we build Cloudboostr – an EU sovereign open cloud foundation purpose-built for enterprise AI workloads. Cloudboostr integrates a production-grade OpenStack private cloud infrastructure, a Kubernetes runtime layer, and an AI governance and orchestration layer into a single platform built entirely on upstream open-source components. As an OpenStack Engineer , you will be a core member of the Cloudboostr product team, developing the private cloud infrastructure layer that underpins everything else and deploying it in customer data centers and EU-based cloud environments across Europe. Responsibilities Design, deploy, and operate enterprise-grade OpenStack environments as part of the Cloudboostr platform Build and maintain automated infrastructure provisioning, upgrade, and backup pipelines using Terraform and Ansible Ensure high availability, resilience, and performance of private cloud infrastructure across on-premises and EU-based deployment models Implement and maintain network architectures and network security policies Collaborate closely with the product team to ensure seamless integration between the Cloudboostr’s infrastructure, runtime and AI layers Participate in incident response, root cause analysis, and continuous improvement of infrastructure reliability Contribute to the evolution of Cloudboostr’s infrastructure architecture – your insights feed directly into the product roadmap Requirements 3+ years of hands-on experience deploying and operating OpenStack in production environments Deep understanding of core OpenStack services Experience with Ceph for distributed storage Strong knowledge of Linux (Ubuntu preferred) system administration and networking fundamentals Experience with infrastructure-as-code using Terraform and configuration management (Ansible) Familiarity with CI/CD concepts and pipeline tooling Understanding of cloud security principles: network segmentation, IAM, secrets management Strong problem-solving skills and ability to operate independently in a product-oriented engineering team Fluency in English and Polish (min. C1 level) Nice to have Experience with Kubernetes and understanding of how OpenStack and Kubernetes interoperate Experience operating OpenStack at scale across multiple physical sites or regions Experience setting up and configuring GPU-enabled nodes in OpenStack Benefits of joining Grape Up Non-corporate work environment among experienced engineers Individual growth & development plan supported by cyclical feedback sessions Access to knowledge platforms (e.g. Pluralsight) Equipment of your choice Financing of conferences, external trainings, and certifications Language lessons (English, German and Polish for foreigners) LuxMed private medical care Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge Employee referral program Rewards for the success of the month and year awarded by our employees Special rewards for your years with us (G-Man) Integration activities

🏢 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: 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: Design and develop a high-scale, low-latency cloud-native order management system for airlines, replacing legacy ticketing with a modern Offer & Order platform. The role focuses on building and optimizing mission-critical microservices, handling complex state management, and integrating with legacy systems in a cloud environment. You will work in an Agile team to deliver secure, high-performance solutions processing millions of global transactions. 🗂️ Requirements: 6-9 years of software development experience, Experience in Agile software development, Strong experience with Java, Strong experience with Spring, Experience with Web Services, Experience with Git, Experience with Maven, Experience with Jenkins, Experience with Docker, Knowledge of GCP cloud technologies, Strong analytical and problem-solving skills, English proficiency (written and verbal), Legal work permit in Poland 📃 Skills: Java, Spring, WebServices, Git, Maven, Jenkins, Docker, GCP, Agile, Microservices, Cloud 🏢 Description: Project info Our customer is building a cloud-native order management system for airlines that replaces legacy ticketing with a modern, e-commerce-driven "Offer & Order" ecosystem. As a Software Engineer on this high-scale, low-latency platform, you will leverage AI tools to gain productivity while designing, coding, and deploying mission-critical microservices capable of securely processing millions of global transactions. You will tackle complex state management and troubleshoot intricate software issues to handle the complete lifecycle of dynamic travel baskets and seamless legacy system integrations. Working closely with technical panels, you will actively design prototypes, propose architectural enhancements, and align business requirements with advanced technology. If you have the right mindset, join us on this thrilling journey to build a massive market differentiator that will fundamentally transform the global travel industry. Responsibilities Develops, codes, tests and debugs new complex software solutions or enhancements to existing product Designs, plans, develops and improves applications using routine and advanced technology Works on issues where analysis of situations or data requires an in-depth knowledge of application & system Encourage high coding standards, using best practices and high quality Represents team on cross-teams’ meetings Job requirements around 6-9 years of related experience Experience in fast paced Software Development in Agile environment Experience in: Java, Spring, Web Services Experience with tools like Git, Maven, Jenkins, Docker Good knowledge of cloud based technologies (GCP) Excellent analysis and problem-solving skills Good communication skills in English, both written and verbal Must possess a legal work permit in Poland Benefits General benefits - depends on the form of employment Hybrid work model combining office & remote work Attractively located office with collaboration spaces Onsite parking space for employees Referral program with financial bonus Life Insurance Budget for development (including language courses and others), clear career path with the possibility to gain experience in international environment Access to internal Learning Platform with multiple trainings oriented for professional growth Lifestyle benefits: Access to MyBenefit platform (Multisport included) Team Building activities Charity initiatives Working environment promoting diversity and inclusion Health benefits: Private medical care - Platinum Package

🏢 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