Fullstack Engineer (Node.js, Vue.js)

🏢 Summary: Fullstack Engineer role focused on building internal developer platforms, automation tools, and services that improve developer productivity in an enterprise environment. The position involves backend development with Node.js and NestJS, frontend development with Vue and Nuxt, and collaboration on cloud, CI/CD, and observability solutions. The role also includes debugging production systems, evaluating new technologies, and working with cross-functional teams. 🗂️ Requirements: 3+ years of experience in fullstack web application development, University degree in Computer Science, Data Science, Mathematics, or related technical field, Knowledge of TypeScript, Experience with Node.js, Experience with NestJS, Ability to build frontend applications using Vue or Nuxt, Understanding of event-driven systems, Knowledge of Kafka, Familiarity with AWS cloud services, Understanding of CI/CD pipelines, Knowledge of Terraform or AWS CDK, Experience with debugging production systems, Ability to work in distributed environments, English proficiency, Polish proficiency, Readiness to work in a hybrid model in Katowice 📃 Skills: TypeScript, Node.js, NestJS, Vue, Nuxt, Kafka, AWS, GitLab, Terraform, CDK, CI/CD 🏢 Description: Responsibilities We are looking for a practical and collaborative Fullstack Engineer to join the Developer Experience (DX) team in a large enterprise environment. The role focuses on building internal developer platforms, tools, and services that improve developer productivity, system visibility, and workflow automation. You will contribute to developing and maintaining solutions that support engineering teams and improve development processes. - Develop backend services and APIs using TypeScript, Node.js, and NestJS. - Build frontend applications using Vue and Nuxt. - Contribute to internal tools that improve developer productivity and automation. - Work with DevOps engineers on cloud, CI/CD, and observability integration. - Support debugging and root cause analysis of application issues. - Participate in POCs and evaluation of new technologies. - Collaborate with technical and non-technical stakeholders. Qualifications - 3+ years of experience in fullstack development delivering web-based applications. - Completed university degree in Computer Science, Data Science, Mathematics, or a related technical field. - Good knowledge of TypeScript, Node.js, and frameworks such as NestJS. - Ability to build frontend features using Vue or Nuxt. - Understanding of event-driven systems and messaging tools like Kafka. - Familiarity with AWS cloud services and how modern applications are deployed. - Awareness of CI/CD pipelines (GitLab CI) and Infrastructure as Code (Terraform / AWS CDK). - Exposure to production systems, debugging, and working in distributed environments. - Strong communication skills in English and Polish, with readiness to work in a hybrid model in Katowice.

🏢 Summary: Full-Stack Engineer role focused on building internal developer platforms, tools, and services to improve productivity, automation, and system visibility in a large enterprise environment. The position involves developing TypeScript-based backend services and modern frontend applications while integrating with cloud infrastructure, CI/CD pipelines, and observability platforms. The role requires close collaboration with DevOps and contribution to continuous improvement through troubleshooting and technology evaluation. 🗂️ Requirements: 3+ years commercial experience in full-stack development, University degree in Computer Science, Data Science, Mathematics or related field, Strong TypeScript backend development experience, Experience with Node.js frameworks such as NestJS, Experience building frontend applications with Vue or Nuxt, Experience with event-driven architectures and messaging systems, Understanding of CI/CD pipelines, Experience with AWS cloud services (ECS, EKS, EC2, IAM, Lambda), Experience with Infrastructure as Code tools, Fluent English and Polish, Availability for hybrid work (1–2 office visits per week) 📃 Skills: TypeScript, Node.js, NestJS, Vue, Nuxt, Kafka, GitLab, AWS, ECS, EKS, EC2, IAM, Lambda, Terraform, CDK, CI/CD 🏢 Description: We are looking for a practical and collaborative Full-Stack Engineer to join the Developer Experience (DX) team in a large enterprise environment. The role focuses on building internal developer platforms , tools, and services that improve developer productivity, system visibility, and workflow automation. The ideal candidate has strong TypeScript - based backend development experience, enjoys working with modern frontend technologies, and collaborates closely with DevOps engineers working on cloud infrastructure , CI/CD pipelines, and observability platforms. Design, develop, and maintain backend services and APIs using TypeScript , Node.js , and modern backend frameworks such as NestJS . Build and maintain modern frontend applications using frameworks such as Vue and Nuxt . Develop internal tools and platforms that improve developer productivity and automate development workflows. Collaborate closely with DevOps engineers to ensure applications integrate smoothly with cloud infrastructure , CI/CD pipelines, and observability platforms . Troubleshoot application and platform issues , perform root cause analysis, and support continuous improvement. Research and evaluate new technologies, creating Proofs of Concept (POCs) to assess potential solutions and best practices. Communicate technical concepts clearly and collaborate with both technical and non-technical stakeholders. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice you language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications 3+ years of commercial experience in full-stack software development. Completed university degree in Computer Science , Data Science, Mathematics, or a related technical field. Strong experience with TypeScript and backend development using Node.js frameworks such as NestJS . Experience building modern frontend applications using frameworks such as Vue or Nuxt . Familiarity with event - driven architectures and messaging systems, such as Kafka . Understanding of CI/CD pipelines , ideally with GitLab CI. Experience working with cloud environments , preferably AWS (ECS, EKS, EC2, IAM, Lambda). Familiarity with Infrastructure as Code tools, such as Terraform or AWS CDK . Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week . About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Senior Fullstack Engineer role focused on building internal developer platforms, tools, and services that improve developer productivity, workflow automation, and system visibility in an enterprise environment. The position involves backend and frontend development, architectural decision-making, cloud infrastructure collaboration, and continuous improvement initiatives. The offer includes professional development opportunities, language courses, and a flexible benefits platform. 🗂️ Requirements: Completed degree in Computer Science, Data Science, Mathematics, or related technical field, 5+ years of fullstack software development experience, Strong knowledge of TypeScript, Strong knowledge of Node.js, Experience with NestJS, Experience building frontend applications with Vue or Nuxt, Understanding of event-driven architectures, Knowledge of Kafka, Experience with AWS cloud services, Experience with CI/CD pipelines, Knowledge of Terraform or AWS CDK, Ability to participate in system architecture and technical design discussions, English proficiency, Polish proficiency, Availability to work in a hybrid model in Katowice 📃 Skills: TypeScript, Node.js, NestJS, Vue, Nuxt, Kafka, AWS, ECS, EKS, EC2, IAM, Lambda, GitLab, Terraform, CDK, CI/CD 🏢 Description: Responsibilities We are looking for a practical and collaborative Senior Fullstack Engineer to join the Developer Experience (DX) team in a large enterprise environment. The role focuses on building internal developer platforms, tools, and services that improve developer productivity, system visibility, and workflow automation. You will play a key role in shaping engineering solutions, making technical decisions, and driving improvements across the developer ecosystem. - Design and maintain backend services and APIs using TypeScript, Node.js, and NestJS, while making architectural decisions and evaluating trade-offs. - Build and support frontend applications using Vue and Nuxt, ensuring good developer-facing UX. - Develop internal tools and platforms that improve developer productivity, system visibility, and workflow automation. - Evaluate technical solutions, balancing cost, performance, complexity, and maintainability. - Collaborate with DevOps engineers on cloud infrastructure, CI/CD, and observability integration. - Troubleshoot issues, perform root cause analysis, and drive continuous improvements. - Build POCs to validate new technologies and drive experimentation. Benefits - Motivizer Benefits Platform with a monthly budget of 550 PLN for medical care, meal tickets, sports cards, cinema tickets, vouchers, discounts, and more. - Access to a multi-language learning platform. - Regular internal and external training opportunities. - Networking events, coding challenges, and company parties. Qualifications - Completed university degree in Computer Science, Data Science, Mathematics, or a related technical field. - Strong background in fullstack software development (5+ years) with hands-on delivery of production systems. - Solid command of TypeScript, Node.js, and backend frameworks such as NestJS. - Practical knowledge of building frontend applications using Vue or Nuxt. - Good understanding of event-driven architectures and messaging systems such as Kafka. - Familiarity with cloud environments (AWS: ECS, EKS, EC2, IAM, Lambda) and how services are deployed and operated. - Working knowledge of CI/CD pipelines (GitLab CI) and Infrastructure as Code (Terraform / AWS CDK). - Ability to work with technical design discussions, system architecture topics, and cross-team engineering challenges. - Strong communication skills in English and Polish, with readiness to work in a hybrid model in Katowice.

🏢 Summary: Senior Fullstack Engineer role focused on building internal developer platforms, tools, and services to improve developer productivity, workflow automation, and system visibility in an enterprise environment. The position involves backend and frontend development, architectural decision-making, cloud infrastructure collaboration, and CI/CD integration using modern technologies. The role also includes troubleshooting, experimentation through POCs, and cross-team technical collaboration in a hybrid work model in Katowice. 🗂️ Requirements: Completed degree in Computer Science, Data Science, Mathematics, or related technical field, 5+ years of fullstack software development experience, Strong experience with TypeScript, Strong experience with Node.js, Experience with NestJS, Experience building frontend applications with Vue or Nuxt, Knowledge of event-driven architectures, Experience with Kafka, Familiarity with AWS cloud services, Experience with CI/CD pipelines, Knowledge of Infrastructure as Code, Ability to participate in system architecture and technical design discussions, English proficiency, Polish proficiency, Availability for hybrid work in Katowice 📃 Skills: TypeScript, Node.js, NestJS, Vue, Nuxt, Kafka, AWS, ECS, EKS, EC2, IAM, Lambda, GitLab, Terraform, CDK, CI/CD 🏢 Description: Responsibilities We are looking for a practical and collaborative Senior Fullstack Engineer to join the Developer Experience (DX) team in a large enterprise environment. The role focuses on building internal developer platforms, tools, and services that improve developer productivity, system visibility, and workflow automation. You will play a key role in shaping engineering solutions, making technical decisions, and driving improvements across the developer ecosystem. - Design and maintain backend services and APIs using TypeScript, Node.js, and NestJS, while making architectural decisions and evaluating trade-offs. - Build and support frontend applications using Vue and Nuxt, ensuring good developer-facing UX. - Develop internal tools and platforms that improve developer productivity, system visibility, and workflow automation. - Evaluate technical solutions, balancing cost, performance, complexity, and maintainability. - Collaborate with DevOps engineers on cloud infrastructure, CI/CD, and observability integration. - Troubleshoot issues, perform root cause analysis, and drive continuous improvements. - Build POCs to validate new technologies and drive experimentation. Qualifications - Completed university degree in Computer Science, Data Science, Mathematics, or a related technical field. - Strong background in fullstack software development (5+ years) with hands-on delivery of production systems. - Solid command of TypeScript, Node.js, and backend frameworks such as NestJS. - Practical knowledge of building frontend applications using Vue or Nuxt. - Good understanding of event-driven architectures and messaging systems such as Kafka. - Familiarity with cloud environments (AWS: ECS, EKS, EC2, IAM, Lambda) and how services are deployed and operated. - Working knowledge of CI/CD pipelines (GitLab CI) and Infrastructure as Code (Terraform / AWS CDK). - Ability to work with technical design discussions, system architecture topics, and cross-team engineering challenges. - Strong communication skills in English and Polish, with readiness to work in a hybrid model in Katowice.

🏢 Summary: Full-Stack Engineer role in a Developer Experience team focused on building internal platforms, tools, and services that enhance developer productivity and workflow automation. The position involves developing TypeScript-based backend services and modern frontend applications while integrating with cloud infrastructure, CI/CD, and observability systems. The role requires close collaboration with DevOps in a hybrid work model. 🗂️ Requirements: 3+ years commercial experience in full-stack development, University degree in Computer Science, Data Science, Mathematics or related field, Strong experience with TypeScript, Experience with Node.js and NestJS, Experience with Vue or Nuxt, Knowledge of event-driven architectures, Experience with Kafka, Understanding of CI/CD pipelines, Experience with GitLab CI, Experience with AWS (ECS, EKS, EC2, IAM, Lambda), Experience with Infrastructure as Code tools, English proficiency, Polish proficiency, Availability for hybrid work (1–2 office visits per week) 📃 Skills: TypeScript, Node.js, NestJS, Vue, Nuxt, Kafka, CI/CD, GitLab, AWS, ECS, EKS, EC2, IAM, Lambda, Terraform, CDK 🏢 Description: We are looking for a practical and collaborative Full-Stack Engineer to join the Developer Experience (DX) team in a large enterprise environment. The role focuses on building internal developer platforms , tools, and services that improve developer productivity, system visibility, and workflow automation. The ideal candidate has strong TypeScript - based backend development experience, enjoys working with modern frontend technologies, and collaborates closely with DevOps engineers working on cloud infrastructure , CI/CD pipelines, and observability platforms. Design, develop, and maintain backend services and APIs using TypeScript , Node.js , and modern backend frameworks such as NestJS . Build and maintain modern frontend applications using frameworks such as Vue and Nuxt . Develop internal tools and platforms that improve developer productivity and automate development workflows. Collaborate closely with DevOps engineers to ensure applications integrate smoothly with cloud infrastructure , CI/CD pipelines, and observability platforms . Troubleshoot application and platform issues , perform root cause analysis, and support continuous improvement. Research and evaluate new technologies, creating Proofs of Concept (POCs) to assess potential solutions and best practices. Communicate technical concepts clearly and collaborate with both technical and non-technical stakeholders. Qualifications 3+ years of commercial experience in full-stack software development. Completed university degree in Computer Science , Data Science, Mathematics, or a related technical field. Strong experience with TypeScript and backend development using Node.js frameworks such as NestJS . Experience building modern frontend applications using frameworks such as Vue or Nuxt . Familiarity with event - driven architectures and messaging systems, such as Kafka . Understanding of CI/CD pipelines , ideally with GitLab CI. Experience working with cloud environments , preferably AWS (ECS, EKS, EC2, IAM, Lambda). Familiarity with Infrastructure as Code tools, such as Terraform or AWS CDK . Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week . About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Backend-focused Software and Cloud Engineer role focused on building scalable IoT and cloud-native platforms in AWS. The position involves developing backend services, designing REST APIs, and implementing event-driven architectures for device communication and telemetry processing. You will also contribute to infrastructure, deployment, and data processing workflows in production cloud environments. 🗂️ Requirements: Completed degree in Computer Science or related technical field, 3+ years of backend development experience with TypeScript and Node.js, Strong knowledge of REST API design and NestJS, Hands-on experience with AWS services (Lambda, S3, SQS, IoT Core), Experience with PostgreSQL and ORM tools, Basic experience with containerization, CI/CD, and infrastructure as code, Understanding of cloud-native or event-driven architectures 📃 Skills: TypeScript, Node.js, NestJS, Fastify, OpenAPI, AWS, Lambda, S3, SQS, IoTCore, MQTT, Kinesis, Timestream, PostgreSQL, Aurora, TypeORM, Terraform, OpenTofu, Docker, CICD, Vue, REST 🏢 Description: Responsibilities We are looking for a hands-on software and cloud engineer with a strong backend focus who wants to grow within IoT and cloud-native systems . You will contribute to building scalable IoT and cloud platforms at OBI Smart Technologies Poland , working on systems handling device communication , telemetry ingestion , and automation workflows . You collaborate closely with backend engineers, architects and product teams to deliver reliable and production-ready solutions across AWS -based environments. Your key responsibilities include: Develop and maintain backend services using TypeScript, Node.js, NestJS and Fastify . Design and implement REST APIs using OpenAPI standards and validation patterns . Contribute to AWS - based IoT and event-processing architectures including IoT Core, MQTT and telemetry ingestion . Support development of data processing and automation workflows using Lambda, SQS, Kinesis and Timestream . Work with PostgreSQL or Aurora databases and maintain persistence layers using TypeORM . Contribute to infrastructure and deployment processes using Terraform or OpenTofu , Docker and CI/CD pipelines . Support monitoring , testing , observability and operational stability while occasionally contributing to frontend components in Vue 3. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Completed university degree in Computer Science or a comparable technical field. 3+ years of experience in backend development using TypeScript and Node.js . Good knowledge of REST API design and frameworks such as NestJS. Hands-on experience with AWS services such as Lambda, S3, SQS or IoT Core . Experience working with relational databases such as PostgreSQL and ORM tools. Basic experience with containerization , CI/CD pipelines and infrastructure as code tools. Understanding of cloud-native or event-driven architectures Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Backend and Cloud Engineer role focused on designing and scaling IoT-driven, cloud-native platforms in AWS. The position involves building distributed backend services, event-driven architectures, and telemetry processing systems while owning infrastructure and CI/CD pipelines. The engineer contributes to architecture decisions and ensures secure, scalable, and production-ready solutions. 🗂️ Requirements: University degree in Computer Science or related field, 5+ years of backend engineering experience, Strong expertise in TypeScript and Node.js, Hands-on experience with NestJS and scalable REST APIs, Deep experience with AWS services including IoT Core, Lambda, Kinesis, SQS, Timestream, IAM, CloudWatch, Experience with infrastructure as code and Kubernetes, Experience with containerization and CI/CD pipelines, Strong knowledge of distributed systems and event-driven architectures, Experience with IoT communication patterns such as MQTT, Fluent English and Polish, Availability for hybrid work (1–2 office visits per week) 📃 Skills: TypeScript, Node.js, NestJS, Fastify, REST, OpenAPI, AWS, IoT, IoTCore, Lambda, Kinesis, SQS, Timestream, IAM, CloudWatch, MQTT, PostgreSQL, Aurora, Terraform, OpenTofu, Kubernetes, Helm, GitLab, CI/CD 🏢 Description: Responsibilities We are looking for a strong backend and cloud engineer with deep experience in IoT and distributed systems who wants to shape and scale modern cloud - native platforms . You will design and evolve IoT and cloud architectures at OBI Smart Technologies Poland , working across device communication , telemetry processing and automation workflows . You act as a technical driver within the team, contributing to architecture decisions and ensuring scalable, secure and production-ready solutions across AWS environments . Your key responsibilities include: Design and develop scalable backend services using TypeScript, Node.js, NestJS and Fastify within distributed systems. Lead the design and evolution of REST APIs using OpenAPI standards and robust validation and versioning strategies. Design and operate AWS - native IoT and event-driven architectures using IoT Core, MQTT, Lambda, Kinesis and related services. Build scalable data processing and automation workflows for telemetry and energy-related data using Timestream , SQS and streaming services . Design and optimize persistence layers using PostgreSQL or Aurora and ensure data consistency and performance. Own infrastructure and deployment design using Terraform or OpenTofu , Kubernetes , Helm and GitLab CI/CD pipelines . Drive engineering best practices , observability , reliability and security standards while supporting GDPR-related backend processes and mentoring team members. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Completed university degree in Computer Science or a comparable technical field. 5+ years of professional experience in backend engineering with strong expertise in TypeScript and Node . js . Strong hands-on experience with NestJS and designing scalable REST APIs in production environments. Deep experience with AWS cloud services including IoT Core , Lambda , Kinesis , SQS , Timestream , IAM and CloudWatch . Strong experience with infrastructure as code , Kubernetes , containerization and CI/CD pipelines . Solid understanding of distributed systems, event-driven architectures and IoT communication patterns such as MQTT . Ability to translate complex business requirements into scalable technical solutions. Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Hands-on backend and cloud engineering role focused on building scalable IoT and cloud-native platforms in AWS. The position involves developing backend services, designing REST APIs, and implementing event-driven IoT architectures with strong emphasis on reliability and automation. You will contribute to infrastructure, data processing, and deployment pipelines in a production-grade AWS environment. 🗂️ Requirements: Completed degree in Computer Science or related field, 3+ years of backend development experience with TypeScript and Node.js, Strong knowledge of REST API design and NestJS framework, Hands-on experience with AWS services (Lambda, S3, SQS, IoT Core), Experience with relational databases such as PostgreSQL and ORM tools, Basic experience with containerization and CI/CD pipelines, Experience with infrastructure as code tools, Understanding of cloud-native or event-driven architectures, Fluent English and Polish, Availability for hybrid work (1–2 office visits per week) 📃 Skills: TypeScript, Node.js, NestJS, Fastify, OpenAPI, AWS, Lambda, S3, SQS, IoT, MQTT, Kinesis, Timestream, PostgreSQL, Aurora, TypeORM, Terraform, OpenTofu, Docker, CI/CD, Vue, IoT 🏢 Description: Responsibilities We are looking for a hands-on software and cloud engineer with a strong backend focus who wants to grow within IoT and cloud-native systems . You will contribute to building scalable IoT and cloud platforms at OBI Smart Technologies Poland , working on systems handling device communication , telemetry ingestion , and automation workflows . You collaborate closely with backend engineers, architects and product teams to deliver reliable and production-ready solutions across AWS -based environments. Your key responsibilities include: Develop and maintain backend services using TypeScript, Node.js, NestJS and Fastify . Design and implement REST APIs using OpenAPI standards and validation patterns . Contribute to AWS - based IoT and event-processing architectures including IoT Core, MQTT and telemetry ingestion . Support development of data processing and automation workflows using Lambda, SQS, Kinesis and Timestream . Work with PostgreSQL or Aurora databases and maintain persistence layers using TypeORM . Contribute to infrastructure and deployment processes using Terraform or OpenTofu , Docker and CI/CD pipelines . Support monitoring , testing , observability and operational stability while occasionally contributing to frontend components in Vue 3. Qualifications Completed university degree in Computer Science or a comparable technical field. 3+ years of experience in backend development using TypeScript and Node.js . Good knowledge of REST API design and frameworks such as NestJS. Hands-on experience with AWS services such as Lambda, S3, SQS or IoT Core . Experience working with relational databases such as PostgreSQL and ORM tools. Basic experience with containerization , CI/CD pipelines and infrastructure as code tools. Understanding of cloud-native or event-driven architectures Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: The offer is for a senior backend and cloud engineer to design and scale IoT-driven, cloud-native platforms on AWS. The role focuses on building distributed systems, event-driven architectures, and scalable REST APIs using TypeScript and Node.js. It includes ownership of infrastructure, data processing workflows, and cloud-native deployments in production environments. 🗂️ Requirements: Completed degree in Computer Science or related field, 5+ years of backend engineering experience, Strong expertise in TypeScript, Strong expertise in Node.js, Hands-on experience with NestJS, Experience designing scalable REST APIs in production, Deep experience with AWS services, Experience with infrastructure as code, Experience with Kubernetes and containerization, Experience with CI/CD pipelines, Strong understanding of distributed systems, Knowledge of event-driven architectures, Experience with MQTT and IoT communication, Fluent English, Fluent Polish, Availability for hybrid work (1–2 days onsite per week) 📃 Skills: TypeScript, Node.js, NestJS, Fastify, REST, OpenAPI, AWS, IoT, IoTCore, Lambda, Kinesis, SQS, Timestream, IAM, CloudWatch, MQTT, PostgreSQL, Aurora, Terraform, OpenTofu, Kubernetes, Helm, GitLab, CI/CD 🏢 Description: Responsibilities We are looking for a strong backend and cloud engineer with deep experience in IoT and distributed systems who wants to shape and scale modern cloud - native platforms . You will design and evolve IoT and cloud architectures at OBI Smart Technologies Poland , working across device communication , telemetry processing and automation workflows . You act as a technical driver within the team, contributing to architecture decisions and ensuring scalable, secure and production-ready solutions across AWS environments . Your key responsibilities include: Design and develop scalable backend services using TypeScript, Node.js, NestJS and Fastify within distributed systems. Lead the design and evolution of REST APIs using OpenAPI standards and robust validation and versioning strategies. Design and operate AWS - native IoT and event-driven architectures using IoT Core, MQTT, Lambda, Kinesis and related services. Build scalable data processing and automation workflows for telemetry and energy-related data using Timestream , SQS and streaming services . Design and optimize persistence layers using PostgreSQL or Aurora and ensure data consistency and performance. Own infrastructure and deployment design using Terraform or OpenTofu , Kubernetes , Helm and GitLab CI/CD pipelines . Drive engineering best practices , observability , reliability and security standards while supporting GDPR-related backend processes and mentoring team members. Qualifications Completed university degree in Computer Science or a comparable technical field. 5+ years of professional experience in backend engineering with strong expertise in TypeScript and Node . js . Strong hands-on experience with NestJS and designing scalable REST APIs in production environments. Deep experience with AWS cloud services including IoT Core , Lambda , Kinesis , SQS , Timestream , IAM and CloudWatch . Strong experience with infrastructure as code , Kubernetes , containerization and CI/CD pipelines . Solid understanding of distributed systems, event-driven architectures and IoT communication patterns such as MQTT . Ability to translate complex business requirements into scalable technical solutions. Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Mid/Senior Backend Developer role focused on building and scaling cloud-native backend systems for retail media and headless advertising platforms. The position involves developing high-performance, distributed services for ad serving, campaign delivery, targeting, analytics, and reporting across digital and physical channels. You will work with modern cloud and DevOps technologies to ensure reliability, scalability, and real-time data processing at scale. 🗂️ Requirements: University degree in Computer Science, Mathematics, Physics or similar, Proven experience as Senior Backend Developer in production environments, Strong expertise in NestJS, NodeJS, and TypeScript, Hands-on experience with AWS and cloud-native architectures, Solid knowledge of Kubernetes and distributed systems, Experience with Terraform, Helm, and GitLab CI/CD, Experience with Kafka or similar messaging platforms, Experience with monitoring, logging, and incident response, Hands-on experience with Grafana, Loki, and Thanos, Experience with online marketing, retail media, or ad tech platforms, Experience with large-scale publisher platforms and CMS, Understanding of multi-tenant architectures, Fluency in English and Polish, Openness to hybrid work in Katowice 📃 Skills: NestJS, NodeJS, TypeScript, AWS, Kubernetes, Terraform, Helm, GitLab, Kafka, Grafana, Loki, Thanos, CI/CD, Docker 🏢 Description: Responsibilities As a Mid or Senior Backend Developer, you will join one of our engineering teams working on the technology platforms that enable OBI’s retail media and First Media capabilities across digital and physical channels. You will contribute to building scalable, data driven backend systems that allow brands to activate media, distribute content, and measure performance along the entire customer journey, from inspiration and planning through to purchase and engagement. You will work on backend services that power headless ad serving, campaign delivery, content distribution, targeting, analytics, and reporting across OBI’s owned channels. These platforms operate at scale, support multi-tenant publisher use cases, and require high reliability and performance for internal product teams and external advertising partners. You will work closely with product, DevOps, and data teams to design, build, and operate backend services that enable real time activation, data processing, and reporting, while ensuring availability, performance, and operational stability across the media technology stack. Key Responsibilities: Design, build, and maintain backend services using NestJS, NodeJS, and TypeScript. Architect and scale headless advertising platforms and backend services for online marketing and retail media use cases. Contribute to the architecture and scaling of distributed, cloud native systems running on AWS and Kubernetes . Collaborate closely with DevOps teams to manage infrastructure using Terraform, Helm, and GitLab CI/CD. Implement and operate event driven and streaming solutions using Kafka . Ensure high availability, performance, and reliability through strong observability practices. Use Grafana, Loki, and Thanos to monitor systems , analyze logs, and support incident response. Actively participate in code reviews, architectural discussions, and technical decision making. Contribute to continuous improvement initiatives across performance, scalability, security, and operational excellence. Support and evolve large scale publisher platforms, multi-tenant content management systems, and advertising platforms. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Successfully completed university degree in computer science, mathematics, physics or similar. Proven experience as a Senior Backend Developer in production environments. Deep expertise in NestJS, NodeJS, and TypeScript. Hands on experience with AWS and cloud native architectures. Solid knowledge of Kubernetes , containerized workloads, and distributed systems. Practical experience with Terraform , Helm , and GitLab CI/CD. Experience working with Kafka or comparable messaging and streaming platforms. Strong background in monitoring and alerting, including metrics, logging, and incident response. Hands on experience with Grafana , specifically Loki and Thanos . Proven background in online marketing platforms, retail media, headless ad servers, or ad tech ecosystems. Experience operating or integrating large scale publisher platforms and content management systems. Strong understanding of multi-tenant architectures and information architectures at scale. Fluency in English and Polish . Openness to hybrid work in our Katowice office and collaboration across international teams. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "