Senior Backend Developer/Senior Software Engineer

🏢 Summary: Senior Backend Developer role focused on building scalable, cloud-native microservices using TypeScript and Node.js in AWS environments. The position involves designing secure backend solutions, developing IAM services, implementing test automation, and deploying distributed systems in a CI/CD setup. Work includes close collaboration within agile teams on modern, serverless architectures. 🗂️ Requirements: Minimum 5 years backend/full stack development experience, Strong experience with TypeScript and NodeJS, Experience with Java or Python, Experience designing microservices and distributed systems, Hands-on experience with AWS serverless services, Experience with automated testing including integration and E2E tests, Experience with CI/CD pipelines, Knowledge of OAuth2, OIDC, JWT, Experience with Infrastructure as Code, Fluent Polish and English 📃 Skills: TypeScript, NodeJS, Java, Python, AWS, Lambda, APIGateway, DynamoDB, EventBridge, S3, SNS, SQS, Microservices, OAuth2, OIDC, JWT, Jest, Postman, Playwright, GitLab, Kubernetes, CDK, Terraform, Serverless, CI/CD 🏢 Description: 🚀 Senior Backend Developer Location: Kraków, Poland Experience: 5+ years Contract: B2B, Full-Time Join the Future of Digital Tech with Kolomolo At Kolomolo , we don’t just follow trends - we set them. As a global supplier of IT services and digital modernization solutions, we help businesses embrace cutting-edge technology to optimize their operations. Now, we are growing and looking for fresh talent to grow with us. Are you proactive, tech-savvy, and eager to build your career in IT? This role could be your perfect fit. About the Role We’re looking for a Senior Backend Developer who enjoys building reliable, scalable, and modern cloud-native applications. In this role, you’ll be responsible for backend feature development, system modernization, test automation, code refactoring, and production deployments. You’ll work on distributed systems and microservice-based architectures while contributing to the design and development of secure and high-performing backend solutions. This role is ideal for someone who combines strong technical expertise with a collaborative mindset and enjoys working in agile, engineering-driven environments. What You’ll Be Doing Develop microservices based on Typescript & NodeJS for core business components. Design and develop company’s internal IAM microservice, preparing for a migration on a new solution. Design and develop cloud native applications based on AWS services like Lambda, API Gateway, DynamoDB and EventBridge. Creating and running automated tests, particularly integration tests and end-to-end tests for the backend layer. Work closely with Architects & SRE to follow security & reliability standards while being  actively involved in architectural discussions. Work with external partners & vendors while developing various integrations. Collaborate with the team and drive it while ensuring high code quality and standards. Be actively involved in designing and developing reliable & secure backend features/functions. Work with continuously delivered (CI/CD), asynchronous and distributed systems Tech stack Runtime: Serverless (Lambda, API Gateway, EventBridge) Backend: NodeJS / Typescript (additional Java or Python) Persistency: DynamoDB, S3, SNS, SQS Architecture: Microservices IAM: oAuth2, OIDC Connect, JWT, OPAL CI/CD: GitLab QA: Playwright/ Postman/ Jest Infrastructure: AWS, Kubernetes, AWS CDK, Terraform What We Are Looking For Min. 5 years of experience as a backend/full stack developer, with recent projects in TypeScript & NodeJS and other backend programming language (preferably Java or Python). Experience in creating and running test automation with holistic approach including system, performance smoke and E2E tests (full testing pyramid) on Jest/Postman/Playwright. Ability to share your knowledge, experiences, and opinions on the forum via technology demos/brainstorming sessions. Willingness to grow and learn with a passion for creating new solutions. Experience in working closely with product and design teams as well as doing pair programming in small, agile, and cross-functional teams. Ability and openness to work in a team, especially within a culture of mutual respect and continuous feedback. Being a Team Player, able to help people to grow and guide decision-making processes. Open minded, communicative and focused on delivering business value . Fluent verbal and written skills in Polish and English. Nice to Have Familiarity with Customer Identity Access Management systems & solutions (CIAM), ideally with proven record in designing and implementing. Experience in Infrastructure as a code especially Terraform/ AWS CDK. Developing & maintaining team’s monitoring dashboards in Grafana stack (Prometheus, Looki). What is in It for You Competitive salary and benefits. Career development opportunities in a growing tech company. Continuous learning culture: mentorship, internal training, and certifications. Flexible, agile work environment (remote, hybrid, or on-site in Kraków). Office perks: great coffee, tea, fresh fruit, snacks, and a fun atmosphere. Flat management structure, where your voice matters. Regular team events and a social, supportive work culture. Independent Contractor. 🌟 Why Join Kolomolo? At Kolomolo , we prioritize innovation, agility, and autonomy. Our teams have the freedom to own their work, share ideas, and make meaningful contributions. Inspired by Scandinavian values , we believe in work-life harmony and creating an inclusive culture where everyone thrives. You will be part of a passionate, skilled, and friendly team that works hard and celebrates together. Here, you can build your career on your own terms, with opportunities to grow, learn, and make a real impact. Our Flat Structure & The Culture of Inclusion At Kolomolo, we break the corporate mold. We offer: Agile Teams & Autonomy : No micromanagement. You’ll own your projects and enjoy the freedom to innovate. Work-Life Harmony : Inspired by Scandinavian values, we prioritize balance and flexibility, where remote work and asynchronous collaboration are in our DNA. Learning & Growth : Continuous learning is at our core. We reward hard work, value smart ideas, and foster an environment of mutual respect and trust. Inclusive Culture : We believe in DEI: diversity, equity and inclusion. We are committed to creating an environment where every individual, regardless of background, identity, or experience feels valued, respected, and empowered to thrive. Join Kolomolo and elevate your career with cutting-edge technology, a supportive team, and a company that truly values your input. Ready for the next step? Apply now and start an exciting journey of growth and innovation with us!

🏢 Summary: Full Stack Developer role focused on building and maintaining scalable, cloud-based applications for enterprise data exchange with external government systems. The position involves developing Java (Spring Boot) services, REST APIs, frontend components, and data synchronization processes within a microservices architecture. It includes working in an Agile team and contributing to CI/CD pipelines and automated testing. 🗂️ Requirements: 3+ years experience as Full Stack Developer, Strong proficiency in Java, Experience with Spring Boot, Experience with REST APIs, Experience with microservices architecture, Experience with relational databases, Experience with PostgreSQL, Experience with Node.js, Experience with modern frontend frameworks, Experience with React, Familiarity with CI/CD pipelines, Experience with GitLab CI, Experience with event-driven systems or messaging solutions, Familiarity with AWS, Experience in Agile/Scrum teams 📃 Skills: Java, Spring, SpringBoot, REST, Microservices, PostgreSQL, SQL, Node.js, JavaScript, TypeScript, React, AWS, Git, GitLab, CI/CD, Messaging, Scrum 🏢 Description: 🚀 Java Full Stack Developer (Maternity Cover) Location: Poland - Hybrid (Kraków) Contract: B2B, Full-Time Join the Future of Digital Tech with Kolomolo At Kolomolo , we don’t just follow trends - we set them. As a global supplier of IT services and digital modernization solutions, we help businesses embrace cutting-edge technology to optimize their operations. Now, we are growing and looking for fresh talent to grow with us. Are you proactive, tech-savvy, and eager to build your career in IT? This role could be your perfect fit. About the Role Kolomolo is looking for a Java Full Stack Developer to join an international project team delivering modern digital services for a large-scale, enterprise environment. This is a maternity cover position , offering the opportunity to work on high-impact systems, collaborate with senior engineers, and contribute to the development and maintenance of scalable applications. You will be working on a platform responsible for exchanging operational data between our product and external government systems. The solution enables: Two-way data synchronization (both manual and automated) Visibility into pending work items Access to historical records Validation of both system-generated and manually entered data This is a full-stack role with a strong focus on Java, offering the opportunity to work across the entire application and contribute to its evolution. You will be involved in both backend and frontend development, working within a cloud-based architecture and Agile delivery model. What You’ll Be Doing Designing, building, and maintaining application services and APIs using Java (Spring Boot) Developing and enhancing data synchronization processes and system integrations Extending and maintaining existing application components Ensuring performance, scalability, and reliability of the system Contributing to CI/CD pipelines and deployment processes Writing and maintaining automated tests (unit and integration) Collaborating across the application stack to deliver cohesive solutions Tech Stack Frontend: JavaScript / TypeScript, React (or similar) Backend: Node.js Cloud: AWS (preferred) Architecture: Microservices Tools: Git, CI/CD pipelines, modern testing frameworks What We Are Looking For 3+ years of experience as a Full Stack Developer. Strong proficiency in Java. Experience with REST APIs and microservices architecture. Experience with relational databases (e.g., PostgreSQL) Familiarity with CI/CD pipelines (e.g., GitLab CI) Experience with event-driven systems or messaging solutions Strong grasp of software design, scalability, and performance principles Experience with Node.js on the backend. Experience with modern frontend frameworks (e.g., React). Understanding of REST APIs and web services. Familiarity with cloud environments (AWS preferred). Experience working in Agile/Scrum teams. Strong problem-solving skills and attention to detail. Good communication skills in an international environment. Nice to Have Experience with serverless architecture Knowledge of microservices-based systems Experience with automated testing (unit/integration) Exposure to DevOps practices and CI/CD What is in It for You Competitive salary and benefits. Career development opportunities in a growing tech company. Continuous learning culture: mentorship, internal training, and certifications. Flexible, agile work environment (remote, hybrid, or on-site in Kraków). Office perks: great coffee, tea, fresh fruit, snacks, and a fun atmosphere. Flat management structure, where your voice matters. Regular team events and a social, supportive work culture. B2B contract or Contract of Mandate (Umowa Zlecenie). 🌟 Why Join Kolomolo? At Kolomolo , we prioritize innovation, agility, and autonomy. Our teams have the freedom to own their work, share ideas, and make meaningful contributions. Inspired by Scandinavian values , we believe in work-life harmony and creating an inclusive culture where everyone thrives. You will be part of a passionate, skilled, and friendly team that works hard and celebrates together. Here, you can build your career on your own terms, with opportunities to grow, learn, and make a real impact. Our Flat Structure & The Culture of Inclusion At Kolomolo, we break the corporate mold. We offer: Agile Teams & Autonomy : No micromanagement. You’ll own your projects and enjoy the freedom to innovate. Work-Life Harmony : Inspired by Scandinavian values, we prioritize balance and flexibility, where remote work and asynchronous collaboration are in our DNA. Learning & Growth : Continuous learning is at our core. We reward hard work, value smart ideas, and foster an environment of mutual respect and trust. Inclusive Culture : We believe in DEI: diversity, equity and inclusion. We are committed to creating an environment where every individual, regardless of background, identity, or experience feels valued, respected, and empowered to thrive. Join Kolomolo and elevate your career with cutting-edge technology, a supportive team, and a company that truly values your input. Ready for the next step? Apply now and start an exciting journey of growth and innovation with us!

🏢 Summary: Senior Backend Developer role focused on building and scaling an enterprise-grade internal developer platform for a global financial institution. The position involves designing backend services, contributing to platform architecture, and collaborating with distributed teams in a hybrid Kraków-based environment. Candidates will work with modern platform technologies and DevOps practices to improve developer experience at scale. 🗂️ Requirements: 5+ years of backend development experience, Proficiency in Java, Kotlin, or Node.js, Experience in enterprise or platform environments, Strong communication skills, Ability to work independently in a hybrid setup, Fluent English, Legal right to work in the European Union 📃 Skills: Java, Kotlin, Node.js, DevOps, IaaS, Vercel, Heroku, Coolify 🏢 Description: Ignite the Future of Developer Platforms — Shape Scalable, Enterprise-Grade Solutions! Kraków-based opportunity with hybrid work model (up to 3 days remote/week) As a Senior Backend Developer , you will be working for our client, a leading financial institution, pioneering the development of a cutting-edge internal developer platform. This long-term, multi-year project aims to revolutionize how teams deliver and host their projects at enterprise scale, employing innovative technology akin to Vercel, Heroku, and Coolify. Your expertise will directly impact the creation of a world-class developer experience, fostering agility and efficiency across global teams. Your main responsibilities: Design, develop, and maintain backend services and platform components to ensure robustness and scalability Collaborate with senior management and large developer teams to define platform strategy and drive delivery Contribute to architectural decisions and establish platform standards to support enterprise needs Engage with stakeholders at all levels to gather requirements and communicate technical progress effectively Work across multiple languages and technical domains, applying best practices in development and DevOps Participate in code reviews, testing, and documentation to uphold high-quality standards Maintain a strong focus on security, performance, and maintainability of platform components You're ideal for this role if you have: At least 5 years of professional experience in backend development within enterprise or platform environments Strong proficiency in Java, Kotlin, or Node.js (at least one is a must) Excellent communication skills, capable of engaging both senior management and large developer communities Self-driven attitude with the ability to work independently in a hybrid setting Familiarity with building or working on developer platforms or internal tooling is an advantage Experience working in internationally distributed teams It is a strong plus if you have: Hands-on experience with platforms such as Vercel, Heroku, or Coolify Background in DevOps or infrastructure-as-a-service (IaaS) solutions Language required for the role: Fluent English Eligibility to work in Europe: Only candidates with an existing legal right to work in the European Union will be considered for this role #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Join an early-stage product team to design and deliver scalable, high-volume backend systems using Node.js, TypeScript, and AWS. The role offers end-to-end ownership, influence over architecture and engineering practices, and mentoring responsibilities in a hybrid Kraków setup. 🗂️ Requirements: 5+ years of production software development with Node.js and TypeScript, Practical AWS knowledge, Distributed systems design knowledge, Scalability knowledge, Event-driven architecture experience, Automated testing experience, Independent problem-solving ability, English communication skills, Ability to work in an evolving, fast-paced environment 📃 Skills: Node.js, TypeScript, AWS, Lambda, ECS, S3, RDS, Jest, Vitest, Playwright 🏢 Description: Senior Backend Engineer: Node.js & AWS Location: Kraków, Poland Working model: Hybrid Contract: Employment agreement or B2B Build high-scale systems from the beginning We’re hiring an experienced backend engineer to join a growing international technology business as it expands its engineering presence in Kraków. This is an opportunity to help create a new product rather than inherit a finished roadmap. You’ll influence early technical decisions, build systems designed for demanding workloads, and take meaningful ownership from architecture through production. The company develops robust data infrastructure used by organizations operating in complex, high-stakes environments. Its technology processes large volumes of information and supports products where speed, availability, and accuracy genuinely matter. If you enjoy solving difficult engineering problems, making pragmatic architectural decisions, and seeing your work reach production, this role offers plenty of room to make an impact. What you’ll be doing Design and deliver scalable backend services with Node.js and TypeScript. Build APIs and asynchronous, event-driven workflows in AWS. Engineer reliable systems capable of supporting intensive, high-volume workloads. Own features throughout their lifecycle, from technical discovery and design to deployment and ongoing improvement. Help establish the architecture and engineering practices of a new product. Partner with product specialists and engineers across multiple disciplines. Support other developers through mentoring, thoughtful reviews, and knowledge sharing. Strengthen standards around testing, security, maintainability, and operational reliability. Respond constructively as requirements evolve and new technical challenges emerge. What we’re looking for At least five years of professional experience building production software with Node.js and TypeScript. Strong practical knowledge of AWS. Experience with services such as Lambda, ECS, S3, or RDS is especially relevant. A solid understanding of distributed system design, scalability, and event-driven architecture. Experience using modern automated testing tools such as Jest, Vitest, or Playwright. The confidence to investigate unfamiliar problems and move work forward independently. Clear English communication skills. Comfort working in an energetic environment where priorities and products continue to evolve. Additional experience we’d value You don’t need to bring everything on this list, but any of the following would be useful: Go development. Distributed platforms or messaging-based systems. Large language models or contemporary AI development tools. React. Relational and non-relational databases. Docker and Kubernetes. CI/CD pipelines and modern delivery practices. Why consider this opportunity? Join at an early stage and help shape a product’s technical direction. Work on challenging systems where performance and reliability are fundamental. Take genuine ownership without unnecessary layers of decision-making. Become part of a new engineering group in Kraków with room to influence how it develops. Collaborate in an international, English-speaking environment. Choose between an employment contract and a B2B arrangement. Work within a hybrid model in Kraków. Join a profitable, expanding business focused on sustainable long-term growth.

🏢 Summary: Senior Django Developer role focused on developing and scaling a marketing automation platform, with responsibility for building high-performance web applications, modernizing legacy code, and solving complex system problems. 🗂️ Requirements: Minimum 4 years of experience with Django, Strong experience with Python, Good knowledge of Celery, Experience building and maintaining complex web applications, Ability to optimize code for performance, Experience working with modern libraries and frameworks, English C1, Polish C1 📃 Skills: Python, Django, Celery, REST, SQL, Git 🏢 Description: Positive User is not just a tool, it’s a modern platform that allows brands to create personalized customer experiences powered by complex data. In one place we combine CRM, data management, and omnichannel communication. Our solutions are trusted by global giants like Carrefour, BNP Paribas, and LG, along with over 340 ambitious companies worldwide. As part of Positive (a European B2B SaaS leader with a presence in France, Poland, Germany, Italy, and Spain) we belong to a growing ecosystem of innovative products united by a common mission: to create marketing solutions that bring companies closer to their customers. Our approach? Innovate, Simplify, Satisfy! Want to see what it takes to be part of the team making it happen? We plan big and that’s why we’re always open for A-players to join our team! As of no we are looking for a Senior Backend Developer , a person who will work directly on our product development. This is an ideal role for someone fascinated by modern web technologies and with extensive experience with Python and the Django framework. 💻 Your main tasks will be: building and developing scalable applications with a strong focus on high performance and code quality, modernizing legacy code to improve its readability, stability, and overall efficiency, working with the latest versions of libraries, frameworks and tools, ensuring they stay up to date, writing clean, high-quality code in line with industry best practices, deepening technical knowledge and solving complex system and application-level issues, collaborating with a team of tech enthusiasts , where a growth mindset and continuous improvement of programming skills are our top priorities. 😎 What skills and experience are we looking for? at least 4 years of experience with the Django framework, strong knowledge of Celery , proficiency in Python (ability to write clean and efficient code), experience in building and scaling complex web applications , drive to go beyond standard CRUDs - a passion for diving deep into details and optimizing code, fluency in both English and Polish (C1 level) , independence and a high sense of ownership over assigned tasks, ability to work both as a team player and independently, a solution-oriented mindset and openness to change. 🥳 What we offer in return: compensation between 17 000 - 23 000 PLN / monthly, 100% remote, flexible hours and international environment, co-finance of private medical care and sports card, high-quality hardware - you’ll work on Macbook, individual approach to your development with access to courses and needed sources.

🏢 Summary: Senior Back End JavaScript Developer role focused on building scalable, event-driven backend services for fraud detection and platform integrity. The position involves full ownership of backend solutions within a cross-functional team, designing and implementing high-volume data processing systems in a cloud-based microservices environment. The work directly supports AI-driven fraud prevention for a large-scale global platform. 🗂️ Requirements: 7+ years of backend software development experience, Strong expertise in JavaScript, TypeScript, and Node.js, Experience with AWS services: API Gateway, Lambda, ECS, SQS, SNS, DynamoDB, Experience with Infrastructure as Code using Terraform or CloudFormation, Knowledge of event-driven and microservices architecture, Experience with Serverless Framework, Proficiency in NoSQL databases (DynamoDB), Proficiency in relational databases (PostgreSQL), Experience with CI/CD pipelines (GitHub Actions), Experience with Docker and container orchestration (ECS or Kubernetes) 📃 Skills: JavaScript, TypeScript, Node.js, AWS, API Gateway, Lambda, ECS, SQS, SNS, DynamoDB, Terraform, CloudFormation, Serverless, PostgreSQL, CI/CD, GitHub, Docker, Kubernetes 🏢 Description: Salary range: B2B - up to 43 E/h + VAT 💰 Ciklum is looking for a Senior Back End JavaScript Developer to join our team and work directly with our partner, Trustpilot in Poland. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About Trustpilot: Trustpilot is on an incredible journey to become the universal symbol of trust. As the world's largest independent consumer review platform, they bring consumers and businesses together to foster transparency and improvement. With over 300 million reviews and 64 million monthly active users, the work we do together has a massive global impact, helping millions of people make better choices every day. About the role: As a Senior Back End JavaScript Developer, become a part of a cross-functional development team engineering experiences of tomorrow. In this role - you are fully integrated into Trustpilot's feature team. You will join a cross-functional "full ownership" squad where you have a say in the direction of projects and technological choices. This specific project enhances trust and transparency by detecting and preventing fraudulent activities, such as fake reviews, and ensuring policy compliance through AI, data analysis, and scalable fraud detection systems. Your work will directly influence the integrity of the platform for over 64 million monthly users! Responsibilities: Collaborative Development: Work alongside Product, Design, and Data Science in a team that owns its product and codebase from end-to-end End-to-End Ownership: Participate in every stage of the lifecycle: from ideation and design to architecture, implementation, deployment, and maintenance System Design: Drive technical decision-making and build scalable backend services and high-volume data processing solutions for fraud detection using TypeScript Scale & Innovation: Build and maintain secure, distributed cloud services within an event-driven microservices architecture, focusing on backend stability and scalability Team Leadership: Support, coach, and inspire your colleagues with your technical expertise and a problem-solving mindset Requirements: We are looking for seasoned engineers who are passionate about high-quality code and technical excellence: Experience: 7+ years of professional software development experience, with a deep focus on backend engineering Core Tech: Strong, hands-on expertise with JavaScript, TypeScript, and Node.js AWS Infrastructure: Proven experience with API Gateway, Lambda, ECS, SQS, SNS, and DynamoDB, utilizing Infrastructure as Code (Terraform or CloudFormation) Architecture: Deep understanding of event-driven and microservice architectures, specifically using the Serverless Framework Databases: Proficiency with NoSQL (DynamoDB) and Relational databases (PostgreSQL) DevOps & Tooling: Experience with CI/CD (GitHub Actions), Docker, and orchestration tools (ECS, Kubernetes) Desirable: Experience integrating AI/ML models or working with LLMs and Generative AI Familiarity with Google Cloud Platform (GCP) services, specifically BigQuery and Pub/Sub What`s in it for you? Remote Collaboration: Enjoy the flexibility of remote work or join us in our office locations across Europe Human Connection: We value a great atmosphere and host team F2F workshops a few times a year to brainstorm and bond in person Continuous Growth: Benefit from a tailored education path, including internal meetups, a Udemy license, and company-paid certifications Comprehensive Care: We offer medical insurance, mental health programs, and a welcoming, open culture Global Reach: Your work will build solutions used by millions to promote trust and transparency online Be bold, not bored! If you're ready to build the heart of trust with a world-class engineering team, we'd love to see your application.

🏢 Summary: Senior .NET Backend Developer role focused on building and maintaining complex, data-driven aftersales and spare parts systems in the automotive sector. The position involves designing scalable backend services, handling structured product and PDM data, and supporting automation and AI-assisted development practices. It requires strong expertise in .NET, complex data models, and test automation in an enterprise environment. 🗂️ Requirements: Strong experience with .NET backend development, Strong understanding of data structures and complex data relationships, Experience with test automation, Experience working with PDM (Product Data Management) data, Ability to work with complex business logic and aftersales data models, Strong problem-solving and analytical skills, Fluent English 📃 Skills: .NET, C#, PDM, SQL, API, REST, Automation, AI 🏢 Description: Senior .NET Backend Developer 📍 Wrocław, Poland 🏢 100% Onsite About Consid Consid is an award-winning IT company founded in Sweden, with a strong presence across Norway, Denmark, Germany, Finland, and Poland. We combine Scandinavian work culture with technical excellence, delivering modern, scalable digital solutions for international clients. At Consid, we believe in collaboration, ownership, and continuous growth. We build strong teams that create meaningful products and make sure our people grow along the way. About the Role We are looking for a Senior .NET Backend Developer to join a team working on complex aftersales and spare parts systems within the automotive sector. The role focuses on developing and maintaining backend solutions responsible for processing and connecting large volumes of product and aftersales data, including article numbers, spare parts information, and related product structures. The environment is highly data-driven and requires strong analytical thinking, understanding of complex system dependencies, and the ability to work with structured product data. The team is actively adopting AI-assisted development practices and automation, with a growing focus on reviewing and validating AI-generated solutions. Your Responsibilities Develop and maintain backend solutions supporting spare parts and aftersales systems. Work with complex product structures, article numbers, and PDM-related data. Design and implement scalable backend services. Ensure high code quality through automated testing and validation. Collaborate with business and technical stakeholders. Support modernization and automation initiatives across the development lifecycle. Requirements Strong experience with .NET backend development. Strong understanding of data structures and complex data relationships. Experience with test automation. Experience working with PDM (Product Data Management) data. Ability to work with complex business logic and aftersales data models. Strong problem-solving and analytical skills. Fluent English. Nice to Have Experience in automotive, manufacturing, or industrial environments. Experience working with spare parts systems or product catalogues. Familiarity with AI-assisted development tools and practices. Experience in enterprise-scale environments. Recruitment Process Application Review – We review your CV and contact selected candidates. Interview with our Recruitment Team (English). Technical Interview – Technical deep dive with the customer. Final Decision and Offer.

🏢 Summary: The offer is for a Senior Backend Engineer to design and implement scalable, low-latency backend services supporting global, driver-centric navigation and location intelligence platforms. The role focuses on building resilient APIs and data processing systems that handle real-time and offline data at scale. You will collaborate cross-functionally to deliver high-quality, well-tested services using modern technologies and cloud infrastructure. 🗂️ Requirements: Strong hands-on experience in backend and infrastructure engineering, Proficiency in Kotlin and Java, Experience with Spring Boot for scalable backend systems, Experience designing scalable and performant architectures, Hands-on experience with SQL and NoSQL databases, Experience implementing unit tests and test automation, Experience with CI/CD pipelines and code deployment, Knowledge of containerization and orchestration systems, Experience with cloud platforms, preferably AWS 📃 Skills: Kotlin, Java, Spring, SpringBoot, SQL, NoSQL, CI/CD, Docker, Kubernetes, AWS 🏢 Description: What's the role? We are looking for a Senior Backend Engineer to play a key role in the design and implementation of backend services that support driver-centric experiences across platforms. The platform enables optimized routing, location intelligence, and reliable access to real-time and offline data, designed for frequent, daily use at global scale. Backend services process, store, and distribute data, and derive insights from aggregated usage patterns to improve system behavior and relevance, with a strong focus on scalability, low latency, resilience, and operational consistency. What you will do? As part of our cross functional team, you will help us developing scalable services, design APIs together with mobile and frontend engineers. You will work closely with designers, architects, engineers and product manager to find the best solution, thereby shaping our apps' offering. Work with modern technology on a tight, well tested code base. Make pragmatic technical decisions and move fast without sacrificing quality. Together with the team, you'll establish best practices, conduct code reviews, and implement test automation strategies that prevent distractions and maintain reliability. Who are you? Strong expertise with hands-on experience in backend and infrastructure engineering Excellent knowledge of Kotlin, Java, and Spring Boot, building scalable backend systems Solid architectural skills with experience building scalable and performant services serving millions of users worldwide Hands on experience with DB technologies (SQL/NoSQL) Experience in implementing unit tests and test automation Hands-on knowledge of CI/CD processes and code deployment Good understanding of container and container orchestration systems, like Docker and K8s Experience with Cloud Platforms preferably with AWS. Excellent problem-solving skills and a pragmatic, product-oriented mindset Clear communication skills and ability to work effectively across teams Able to resolve ambiguity and work with little direction Experience with automotive, navigation, mapping, or social applications is a plus, but not required. What we offer: Work on on globally deployed automotive navigation and mapping products Collaboration with an experienced, international engineering organization Truly international team of fantastic & talented people from 60+ countries worldwide, working from strong tech hubs located in Europe, the US, and Asia, along with multiple smaller locations Flexible working hours & a flexible approach to office vs. remote work Medical coverage for you and your family Yearly variable bonus This role is eligible for the Creative Tax Incentive scheme in Poland (KUP) Option to work on a B2B contract (please note: benefits, bonus and KUP do not apply in this case) Life at HERE in Poland comes with a competitive total rewards package designed to support your health, wellbeing, and performance. This includes a base salary, a Short-Term Incentive (STI) bonus (percentage based on role), a creative tax advantage for eligible positions, private medical care (including dental), life insurance, a meal allowance, vision reimbursement, a remote work allowance (if applicable), access to MyBenefit and Multisport programs, and various wellbeing initiatives. Paid time off, sick leave, and parental leave are provided in accordance with the Polish Labor Code. Who are we? HERE Technologies is a location data and technology platform company. We empower our customers to achieve better outcomes – from helping a city manage its infrastructure or a business optimize its assets to guiding drivers to their destination safely. At HERE we take it upon ourselves to be the change we wish to see. We create solutions that fuel innovation, provide opportunity and foster inclusion to improve people’s lives. If you are inspired by an open world and driven to create positive change, join us. Learn more about us on our YouTube Channel. Change is HERE. Apply Now. As part of HERE Technologies employment process, candidates will be required to successfully complete a pre-employment screening process. This offer and any related claims are subject to the successful completion of a pre-employment screening. This will involve employment, education, and criminal verification if applicable. HERE is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, age, gender identity, sexual orientation, marital status, parental status, religion, sex, national origin, disability, veteran status, and other legally protected characteristics.

🏢 Summary: Senior Backend Engineer role focused on designing and implementing scalable backend services for driver-centric navigation and mapping platforms used at global scale. The position involves building low-latency, resilient systems, designing APIs with cross-functional teams, and ensuring high quality through testing and CI/CD practices. 🗂️ Requirements: Strong hands-on experience in backend and infrastructure engineering, Proficiency in Kotlin and Java, Experience with Spring Boot for scalable backend systems, Experience building scalable, high-performance services for large user bases, Hands-on experience with SQL and NoSQL databases, Experience implementing unit tests and test automation, Knowledge of CI/CD processes and deployment pipelines, Experience with Docker and Kubernetes, Experience with AWS or other cloud platforms 📃 Skills: Kotlin, Java, Spring, SpringBoot, SQL, NoSQL, CI/CD, Docker, Kubernetes, AWS 🏢 Description: What's the role? We are looking for a Senior Backend Engineer to play a key role in the design and implementation of backend services that support driver-centric experiences across platforms. The platform enables optimized routing, location intelligence, and reliable access to real-time and offline data, designed for frequent, daily use at global scale. Backend services process, store, and distribute data, and derive insights from aggregated usage patterns to improve system behavior and relevance, with a strong focus on scalability, low latency, resilience, and operational consistency. What you will do? As part of our cross functional team, you will help us developing scalable services, design APIs together with mobile and frontend engineers. You will work closely with designers, architects, engineers and product manager to find the best solution, thereby shaping our apps' offering. Work with modern technology on a tight, well tested code base. Make pragmatic technical decisions and move fast without sacrificing quality. Together with the team, you'll establish best practices, conduct code reviews, and implement test automation strategies that prevent distractions and maintain reliability. Who are you? Strong expertise with hands-on experience in backend and infrastructure engineering Excellent knowledge of Kotlin, Java, and Spring Boot, building scalable backend systems Solid architectural skills with experience building scalable and performant services serving millions of users worldwide Hands on experience with DB technologies (SQL/NoSQL) Experience in implementing unit tests and test automation Hands-on knowledge of CI/CD processes and code deployment Good understanding of container and container orchestration systems, like Docker and K8s Experience with Cloud Platforms preferably with AWS. Excellent problem-solving skills and a pragmatic, product-oriented mindset Clear communication skills and ability to work effectively across teams Able to resolve ambiguity and work with little direction Experience with automotive, navigation, mapping, or social applications is a plus, but not required. What we offer: Work on on globally deployed automotive navigation and mapping products Collaboration with an experienced, international engineering organization Truly international team of fantastic & talented people from 60+ countries worldwide, working from strong tech hubs located in Europe, the US, and Asia, along with multiple smaller locations Flexible working hours & a flexible approach to office vs. remote work Medical coverage for you and your family Yearly variable bonus This role is eligible for the Creative Tax Incentive scheme in Poland (KUP) Option to work on a B2B contract (please note: benefits, bonus and KUP do not apply in this case) Life at HERE in Poland comes with a competitive total rewards package designed to support your health, wellbeing, and performance. This includes a base salary, a Short-Term Incentive (STI) bonus (percentage based on role), a creative tax advantage for eligible positions, private medical care (including dental), life insurance, a meal allowance, vision reimbursement, a remote work allowance (if applicable), access to MyBenefit and Multisport programs, and various wellbeing initiatives. Paid time off, sick leave, and parental leave are provided in accordance with the Polish Labor Code. Who are we? HERE Technologies is a location data and technology platform company. We empower our customers to achieve better outcomes – from helping a city manage its infrastructure or a business optimize its assets to guiding drivers to their destination safely. At HERE we take it upon ourselves to be the change we wish to see. We create solutions that fuel innovation, provide opportunity and foster inclusion to improve people’s lives. If you are inspired by an open world and driven to create positive change, join us. Learn more about us on our YouTube Channel. Change is HERE. Apply Now. As part of HERE Technologies employment process, candidates will be required to successfully complete a pre-employment screening process. This offer and any related claims are subject to the successful completion of a pre-employment screening. This will involve employment, education, and criminal verification if applicable. HERE is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, age, gender identity, sexual orientation, marital status, parental status, religion, sex, national origin, disability, veteran status, and other legally protected characteristics.

🏢 Summary: Senior Java Developer role focused on building and modernizing secure, scalable backend platforms and microservices for investment management products. The position offers hands-on architectural ownership, production support responsibilities, and collaboration across Agile engineering and business teams in a hybrid Krakow model. 🗂️ Requirements: 6+ years of commercial Java enterprise application development, Java 17+ proficiency, Advanced Spring and Spring Boot experience, REST API and backend service development experience, Microservices architecture knowledge, Object-oriented design, clean code, and design patterns, SQL query analysis and optimization, Docker and Kubernetes production experience, Kafka or event-streaming platform familiarity, CI/CD and DevOps practices experience, Secure coding and application security knowledge, Security scanning or vulnerability detection tools experience, Logging, monitoring, metrics, and distributed tracing familiarity, Business-critical production support and troubleshooting experience, Cross-functional collaboration with architects, QA, DevOps, and business teams, Very good English communication skills 📃 Skills: Java, Spring, SpringBoot, REST, SQL, Docker, Kubernetes, Kafka, CI/CD, DevOps, Microservices, Agile 🏢 Description: We are hiring on behalf of our client – a global financial services organization recognized for its premium service, deep domain expertise, and strong technology-driven approach. The company partners with clients, helping them solve complex challenges across investor services and capital markets. Their culture is built on collaboration, knowledge sharing, and empowering individuals to contribute beyond their immediate role. As a Senior Java Developer , you will design and develop core backend platforms and scalable microservices. You will contribute to new product development and modernization initiatives, influence architectural decisions, and work closely with engineering and business stakeholders throughout the software development lifecycle. This is a senior, hands-on engineering role with strong ownership expectations. You will help shape technical solutions, improve engineering practices, and ensure that business-critical systems remain secure, reliable, maintainable, and ready to scale. Key takeaways: Stack: Java 17+, Spring, Spring Boot, REST APIs, SQL, Docker, Kubernetes, Kafka, CI/CD Salary: 27 000 - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office (2 days per week for parents of children up to 4 years old) Location: ul. Klimeckiego, Krakow Recruitment process : A call with MOTIFE Recruiter (30 min) Technical interview with the Manager (1h) Technical interview with the Team (1h) Responsibilities: Backend Development Design, develop, and maintain enterprise-grade applications using Java 17+, Spring, and Spring Boot. Build scalable microservices and REST APIs supporting investment management products. Apply object-oriented design, clean code principles, and established software design patterns. Develop solutions that meet demanding performance, reliability, security, and maintainability standards. Architecture and Technical Excellence Contribute to architectural decisions and translate business requirements into effective technical solutions. Drive technical improvements across existing platforms and modernization initiatives. Participate in code reviews and promote consistent engineering standards across the team. Ensure solutions follow secure coding principles and software development lifecycle best practices. Cross-Functional Collaboration Partner with architects, QA engineers, DevOps specialists, and business stakeholders throughout the development lifecycle. Work within a cross-functional Agile team delivering web, backend, and mobile platform capabilities. Communicate technical decisions, risks, and dependencies clearly to technical and non-technical stakeholders. Support knowledge sharing and mentor other engineers where required. Delivery and Production Ownership Troubleshoot and resolve complex technical and production issues. Improve logging, monitoring, metrics, and distributed tracing across services. Enhance CI/CD pipelines to streamline software delivery and deployment. Drive continuous improvements in development processes, engineering tooling, and operational reliability. Requirements: Technical Expertise At least 6 years of hands-on commercial experience developing enterprise applications in Java. Strong practical knowledge of Java 17 or newer. Advanced experience with Spring, Spring Boot, REST APIs, and backend service development. Strong understanding of microservices architecture, object-oriented design, clean code, and software design patterns. Solid SQL skills, including practical experience with query analysis and optimization. Production experience with Docker and Kubernetes. Familiarity with messaging or event-streaming platforms such as Kafka. Experience working with CI/CD pipelines and modern DevOps practices. Security and Production Engineering Understanding of secure coding principles and common application security risks. Experience using security scanning or vulnerability detection tools. Familiarity with application logging, metrics, monitoring, and distributed tracing. Experience troubleshooting and supporting business-critical production systems. Collaboration and Mindset Proven ability to take ownership of technical solutions from design through production support. Strong problem-solving skills and the ability to resolve complex engineering challenges. Ability to collaborate effectively with architects, QA, DevOps, and business teams. Very good English communication skills. What we offer: Private medical care Life insurance Professional training and certification support Social fund benefits platform Stable employment with a long-term contract Apply now Join a senior engineering team building secure and scalable platforms for the investment management industry. Please apply via our careers page and submit your CV in English.