Senior Backend Developer (Node.js/TypeScript)

🏢 Summary: Mid/Senior DevOps Engineer (AWS) role focused on building and maintaining scalable cloud infrastructure for a virtual shopper research platform. The position combines infrastructure automation, CI/CD, and backend development support within an AWS-based environment. Requires strong hands-on DevOps experience and collaboration in an international team. 🗂️ Requirements: Minimum 3 years commercial DevOps experience, Experience with AWS cloud infrastructure, Proficiency in TypeScript, Experience with GitHub Actions, Hands-on experience with TurboRepo, Experience writing tests using Vitest, Experience using ESLint for code quality, Experience with AWS CDK, Knowledge of Docker and Kubernetes, Experience with Skaffold, Experience with Datadog, Experience with Bash, Experience with Knative and Kafka, Experience with Terraform and Helm, Fluent English 📃 Skills: AWS, TypeScript, Node.js, React, TypeORM, GraphQL, Vitest, Docker, Kubernetes, Knative, Kafka, Lambda, MySQL, S3, Datadog, Terraform, Helm, GitHub, TurboRepo, ESLint, SWC, Skaffold, Bash, CDK 🏢 Description: We are Primotly - a software house based in Warsaw but we’re not just building software - we’re building relationships that last. If you’re ready to lead exciting international projects and help brands bring their vision to life, let’s talk. What is unique about working with us? 🌍 INTERNATIONAL ENVIRONMENT The international work environment includes clients from all over the world, but also a diverse team that gives even more opportunities for development and exchange of knowledge. ⚙️ HIGH AUTONOMY IN OPERATION We focus on partnership relations. That is why from the very beginning of our cooperation you receive a great credit of trust and freedom of action. You know best what path is best to reach a specific goal. For us, the most important are the effects. 🥇 DEVELOPMENT OPPORTUNITIES We support the development of our employees through courses and certification systems. More experienced colleagues are always ready to provide you with advice, experience or mentoring. 💡 ENGAGING PROJECTS If you love to create, invent and pave the way for completely new paths, Primotly is the right place for you. We love everything new, fresh and challenging. That is why there is no time for boredom with us. ........................................................................................................................................................................................ THE ROLE: We are looking for a DevOps Engineer (AWS) with TypeScript experience (nice to have). You should bring mid / senior-level expertise and be comfortable working across cloud infrastructure and development environments. Fluency in English is required , as you will collaborate with an international team. Technology stack: Node.js, React, TypeORM, TypeScript, GraphQL, Vitest, Docker, Kubernetes (k8s), Knative + Kafka, AWS Lambda, MySQL, Amazon S3, Datadog, Terraform Hosting provider: AWS 🎯🏆 The ideal profile: You have been working with software development for many years, with at least three years focused on commercial DevOps experience . You are highly motivated, hands-on, and passionate about building reliable, scalable and automated infrastructure solutions. Technical Requirements: ✅ You use GitHub Actions . ✅ You have hands-on experience with TurboRepo. ✅ You write reliable and maintainable tests using Vitest . ✅ You enforce code quality and consistency using ESLint . ✅ You write and maintain code using TypeScript ✅ You use SWC . ✅ You build and manage infrastructure using AWS CDK . ✅ You are familiar with Docker , Kubernetes , Skaffold , Datadog , and Bash . ✅ You work with Knative + Kafka . ✅ Terraform and Helm are no strangers to you. Nice to have: You work with ACK (AWS Controllers for Kubernetes) , KRO (Kube Resource Orchestrator) , ResourceGraphDefinition (RGD) to define and control resource relationships. Platform description: A proprietary platform designed for conducting virtual shopper research to understand behavior at the point of sale. It enables organizations to analyze and predict shopping decisions in simulated retail environments. Supported use cases include planogram optimization, product launches, pricing strategy, category management, assortment optimization, e-commerce, and mobile app optimization. About the client: One of the world's leading market research companies, providing data insights and consulting services to help clients make smarter decisions. With a presence in over 90 countries, they combine research expertise and innovative analytics to understand people, markets, and society. Here’s what we offer within the B2B cooperation 🤝 ➕ You can expect an hour based B2B contract. We will evaluate your experience on our technical interviews. ➕ Regardless of your current insurance, we want to ensure your comfort. That is why we provide access to co-financed private healthcare for our B2B partners. ➕ Not only are your skills substantial, but also your growth! We highly encourage you to take part in meet-ups, online courses, conferences, and external training. ➕ A healthy mind in a healthy body – we support your overall wellness by offering access to a sports card on partnership terms. ➕We focus on outcomes and clear milestones. Cooperation hours and remote work setups are highly flexible, making it easy to align with your rhythm. ➕ To ensure seamless project execution, we offer the possibility of corporate hardware and software provision for the duration of our contract. 📈 B2B Rate: PLN 125–250/h (rate depends on seniority, scope of responsibilities, and the hourly volume of cooperation) Here is what the recruitment process looks like: Step 1: HR CV review and getting in touch Step 2: First Interview (30 minutes) Step 3: Second interview (one hour Technical Interview) Step 4: Client interview Step 5: Negotiations ;) Because great software starts with great people. Maybe that’s you? Join us at Primotly!

🏢 Summary: Senior Backend Developer role focused on building and optimizing scalable backend services and APIs for a logistics orchestration platform using Node.js and TypeScript. The position involves designing microservices, integrating third-party systems, managing databases, and improving cloud-based infrastructure and CI/CD processes. The role requires strong experience in high-performance systems and cloud-native architectures. 🗂️ Requirements: 6+ years of backend development experience, Strong experience with Node.js, Strong experience with TypeScript, Experience building RESTful APIs, Experience with microservices architecture, Experience with MySQL, MongoDB, CosmosDB or similar databases, Understanding of Azure and GCP cloud services, Experience with Docker, Experience with Kubernetes, Experience with CI/CD practices, Experience working in Agile environment, Advanced English proficiency (B2+) 📃 Skills: Node.js, TypeScript, REST, Microservices, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, RabbitMQ, Kafka 🏢 Description: OneRail is a technology company innovating solutions for multi-modal delivery. We have built and continue to develop a delivery orchestration platform that connects shippers to an extensive courier ecosystem to automate, optimize, and control the entire delivery supply chain, from the demand signal to the proof of delivery. Our OmniPoint SaaS platform uses proprietary algorithms and artificial intelligence to power efficient same-day delivery programs for major companies like Lowe’s, Pepsi, American Tire Distributors, and Advance Auto Parts. As Senior Backend Developer (Node.js), you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be managing the interchange of data between OneRail and 3rd party services, as well as interacting with data stores, and exchanging information between internal microservices. Key Responsibilities: Develop, optimize, and maintain backend services and APIs that power our logistics platform. Design and implement scalable and high-performance solutions using Node.js and other modern backend technologies. Implement best practices for security, scalability, and performance optimization. Participate in code reviews, testing, and debugging to ensure high code quality and reliability. Monitor system performance, troubleshoot issues, and proactively optimize processes. ·         Collaborate with frontend developers, product managers, and other stakeholders. Document technical specifications and architectural decisions for future reference. Assist in automating deployment processes and improving CI/CD pipelines. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 6+ years of experience in backend development, with a strong focus on Node.js & TypeScript. Experience in building RESTful APIs and microservices. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Understanding of cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Familiarity with message queues (e.g., RabbitMQ, Kafka) is a plus. Strong problem-solving skills and ability to work in a fast-paced environment. Excellent communication and collaboration skills. Advanced proficiency in English, both written and spoken (B2+). Not sure if you have enough experience to meet the challenge, but still willing to learn and join our team? Send us your application and we will be happy to talk about the possibilities. Think big! Why Join OneRail Poland? Innovation at its Core: Work on industry-leading technology that is shaping the future of logistics. Career Growth: Opportunities for professional development and career advancement. Collaborative Culture: Join a team of talented engineers and industry experts. Exciting Challenges: Solve complex problems and contribute to impactful projects. Flexibility: We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you. Competitive Compensation: Attractive salary and benefits package. Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred) Salary levels: 22 000 – 28 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Senior Backend Developer (Node.js) role focused on building and optimizing scalable backend services and APIs for a logistics orchestration platform. The position involves developing microservices, integrating with third-party systems, and ensuring high performance, security, and reliability in a cloud-based environment. The role also includes contributing to CI/CD processes and system architecture decisions. 🗂️ Requirements: 6+ years of backend development experience, Strong experience with Node.js, Strong experience with TypeScript, Experience building RESTful APIs, Experience developing microservices, Experience with MySQL, MongoDB, CosmosDB or similar databases, Understanding of Azure and GCP cloud services, Experience with Docker, Experience with Kubernetes, Experience with CI/CD practices, Experience working in Agile environment, Advanced English (B2+) 📃 Skills: Node.js, TypeScript, REST, Microservices, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, RabbitMQ, Kafka 🏢 Description: OneRail is a technology company innovating solutions for multi-modal delivery. We have built and continue to develop a delivery orchestration platform that connects shippers to an extensive courier ecosystem to automate, optimize, and control the entire delivery supply chain, from the demand signal to the proof of delivery. Our OmniPoint SaaS platform uses proprietary algorithms and artificial intelligence to power efficient same-day delivery programs for major companies like Lowe’s, Pepsi, American Tire Distributors, and Advance Auto Parts. As Senior Backend Developer (Node.js), you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be managing the interchange of data between OneRail and 3rd party services, as well as interacting with data stores, and exchanging information between internal microservices. Key Responsibilities: Develop, optimize, and maintain backend services and APIs that power our logistics platform. Design and implement scalable and high-performance solutions using Node.js and other modern backend technologies. Implement best practices for security, scalability, and performance optimization. Participate in code reviews, testing, and debugging to ensure high code quality and reliability. Monitor system performance, troubleshoot issues, and proactively optimize processes. ·         Collaborate with frontend developers, product managers, and other stakeholders. Document technical specifications and architectural decisions for future reference. Assist in automating deployment processes and improving CI/CD pipelines. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 6+ years of experience in backend development, with a strong focus on Node.js & TypeScript. Experience in building RESTful APIs and microservices. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Understanding of cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Familiarity with message queues (e.g., RabbitMQ, Kafka) is a plus. Strong problem-solving skills and ability to work in a fast-paced environment. Excellent communication and collaboration skills. Advanced proficiency in English, both written and spoken (B2+). Not sure if you have enough experience to meet the challenge, but still willing to learn and join our team? Send us your application and we will be happy to talk about the possibilities. Think big! Why Join OneRail Poland? Innovation at its Core: Work on industry-leading technology that is shaping the future of logistics. Career Growth: Opportunities for professional development and career advancement. Collaborative Culture: Join a team of talented engineers and industry experts. Exciting Challenges: Solve complex problems and contribute to impactful projects. Flexibility: We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you. Competitive Compensation: Attractive salary and benefits package. Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred) Salary levels: 22 000 – 28 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Backend Developer (Node.js) role focused on building and maintaining scalable backend services and APIs for a logistics orchestration platform. The position involves developing microservices, integrating third-party systems, and optimizing performance, security, and deployment processes in a cloud-based environment. You will contribute to high-availability solutions supporting same-day delivery operations. 🗂️ Requirements: 3+ years backend development experience, Strong experience with Node.js and TypeScript, Experience building RESTful APIs, Experience with microservices architecture, Experience with relational or NoSQL databases, Knowledge of Azure or GCP cloud services, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience working in Agile environment, Advanced English proficiency (B2+) 📃 Skills: Node.js, TypeScript, REST, Microservices, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, RabbitMQ, Kafka 🏢 Description: OneRail is a technology company innovating solutions for multi-modal delivery. We have built and continue to develop a delivery orchestration platform that connects shippers to an extensive courier ecosystem to automate, optimize, and control the entire delivery supply chain, from the demand signal to the proof of delivery. Our OmniPoint SaaS platform uses proprietary algorithms and artificial intelligence to power efficient same-day delivery programs for major companies like Lowe’s, Pepsi, American Tire Distributors, and Advance Auto Parts. As Backend Developer (Node.js), you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be managing the interchange of data between OneRail and 3rd party services, as well as interacting with data stores, and exchanging information between internal microservices. Key Responsibilities: Develop, optimize, and maintain backend services and APIs that power our logistics platform. Design and implement scalable and high-performance solutions using Node.js and other modern backend technologies. Implement best practices for security, scalability, and performance optimization. Participate in code reviews, testing, and debugging to ensure high code quality and reliability. Monitor system performance, troubleshoot issues, and proactively optimize processes. ·         Collaborate with frontend developers, product managers, and other stakeholders. Document technical specifications and architectural decisions for future reference. Assist in automating deployment processes and improving CI/CD pipelines. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 3+ years of experience in backend development, with a strong focus on Node.js & TypeScript. Experience in building RESTful APIs and microservices. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Understanding of cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Familiarity with message queues (e.g., RabbitMQ, Kafka) is a plus. Strong problem-solving skills and ability to work in a fast-paced environment. Excellent communication and collaboration skills. Advanced proficiency in English, both written and spoken (B2+). Not sure if you have enough experience to meet the challenge, but still willing to learn and join our team? Send us your application and we will be happy to talk about the possibilities. Think big! Why Join OneRail Poland? Innovation at its Core: Work on industry-leading technology that is shaping the future of logistics. Career Growth: Opportunities for professional development and career advancement. Collaborative Culture: Join a team of talented engineers and industry experts. Exciting Challenges: Solve complex problems and contribute to impactful projects. Flexibility: We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you. Competitive Compensation: Attractive salary and benefits package. Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred). Salary levels: 18 000 – 22 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Senior Backend Developer (Node.js) role focused on building and optimizing scalable backend services and APIs for a logistics orchestration platform. The position involves developing microservices, integrating with third-party systems, and ensuring high performance, security, and reliability in a cloud-based environment. The role also includes working with CI/CD pipelines and containerized deployments in a collaborative Agile team. 🗂️ Requirements: 6+ years of backend development experience, Strong experience with Node.js and TypeScript, Experience building RESTful APIs and microservices, Experience with MySQL, MongoDB, CosmosDB or similar databases, Understanding of Azure and GCP cloud services, Experience with Docker and Kubernetes, Experience with CI/CD practices, Experience working in Agile methodologies, Advanced English proficiency (B2+) 📃 Skills: Node.js, TypeScript, REST, Microservices, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, RabbitMQ, Kafka 🏢 Description: OneRail is a technology company innovating solutions for multi-modal delivery. We have built and continue to develop a delivery orchestration platform that connects shippers to an extensive courier ecosystem to automate, optimize, and control the entire delivery supply chain, from the demand signal to the proof of delivery. Our OmniPoint SaaS platform uses proprietary algorithms and artificial intelligence to power efficient same-day delivery programs for major companies like Lowe’s, Pepsi, American Tire Distributors, and Advance Auto Parts. As Senior Backend Developer (Node.js), you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be managing the interchange of data between OneRail and 3rd party services, as well as interacting with data stores, and exchanging information between internal microservices. Key Responsibilities: Develop, optimize, and maintain backend services and APIs that power our logistics platform. Design and implement scalable and high-performance solutions using Node.js and other modern backend technologies. Implement best practices for security, scalability, and performance optimization. Participate in code reviews, testing, and debugging to ensure high code quality and reliability. Monitor system performance, troubleshoot issues, and proactively optimize processes. ·         Collaborate with frontend developers, product managers, and other stakeholders. Document technical specifications and architectural decisions for future reference. Assist in automating deployment processes and improving CI/CD pipelines. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 6+ years of experience in backend development, with a strong focus on Node.js & TypeScript. Experience in building RESTful APIs and microservices. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Understanding of cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Familiarity with message queues (e.g., RabbitMQ, Kafka) is a plus. Strong problem-solving skills and ability to work in a fast-paced environment. Excellent communication and collaboration skills. Advanced proficiency in English, both written and spoken (B2+). Not sure if you have enough experience to meet the challenge, but still willing to learn and join our team? Send us your application and we will be happy to talk about the possibilities. Think big! Why Join OneRail Poland? Innovation at its Core: Work on industry-leading technology that is shaping the future of logistics. Career Growth: Opportunities for professional development and career advancement. Collaborative Culture: Join a team of talented engineers and industry experts. Exciting Challenges: Solve complex problems and contribute to impactful projects. Flexibility: We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you. Competitive Compensation: Attractive salary and benefits package. Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred), We are open to a more flexible arrangement for candidates located outside the Krakow area. Salary levels: 20 000 – 28 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Backend Developer (Node.js) role focused on building and maintaining scalable backend services and APIs for a logistics orchestration platform. The position involves developing microservices, integrating third-party systems, and optimizing performance in a cloud-based environment. You will contribute to CI/CD improvements, system reliability, and high-quality code within an Agile team. 🗂️ Requirements: 3+ years backend development experience, Strong Node.js experience, Strong TypeScript experience, Experience building RESTful APIs, Experience with microservices architecture, Experience with MySQL, MongoDB, CosmosDB or similar databases, Understanding of Azure and GCP cloud services, Experience with Docker and Kubernetes, Experience with CI/CD practices, Experience working in Agile environment, Advanced English proficiency (B2+) 📃 Skills: Node.js, TypeScript, REST, Microservices, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, RabbitMQ, Kafka 🏢 Description: OneRail is a technology company innovating solutions for multi-modal delivery. We have built and continue to develop a delivery orchestration platform that connects shippers to an extensive courier ecosystem to automate, optimize, and control the entire delivery supply chain, from the demand signal to the proof of delivery. Our OmniPoint SaaS platform uses proprietary algorithms and artificial intelligence to power efficient same-day delivery programs for major companies like Lowe’s, Pepsi, American Tire Distributors, and Advance Auto Parts. As Backend Developer (Node.js), you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be managing the interchange of data between OneRail and 3rd party services, as well as interacting with data stores, and exchanging information between internal microservices. Key Responsibilities: Develop, optimize, and maintain backend services and APIs that power our logistics platform. Design and implement scalable and high-performance solutions using Node.js and other modern backend technologies. Implement best practices for security, scalability, and performance optimization. Participate in code reviews, testing, and debugging to ensure high code quality and reliability. Monitor system performance, troubleshoot issues, and proactively optimize processes. ·         Collaborate with frontend developers, product managers, and other stakeholders. Document technical specifications and architectural decisions for future reference. Assist in automating deployment processes and improving CI/CD pipelines. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 3+ years of experience in backend development, with a strong focus on Node.js & TypeScript. Experience in building RESTful APIs and microservices. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Understanding of cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Familiarity with message queues (e.g., RabbitMQ, Kafka) is a plus. Strong problem-solving skills and ability to work in a fast-paced environment. Excellent communication and collaboration skills. Advanced proficiency in English, both written and spoken (B2+). Not sure if you have enough experience to meet the challenge, but still willing to learn and join our team? Send us your application and we will be happy to talk about the possibilities. Think big! Why Join OneRail Poland? Innovation at its Core: Work on industry-leading technology that is shaping the future of logistics. Career Growth: Opportunities for professional development and career advancement. Collaborative Culture: Join a team of talented engineers and industry experts. Exciting Challenges: Solve complex problems and contribute to impactful projects. Flexibility: We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you. Competitive Compensation: Attractive salary and benefits package. Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred), We are open to a more flexible arrangement for candidates located outside the Krakow area. Salary levels: 18 000 – 22 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Full-time Backend Developer role focused on building and maintaining scalable Node.js and TypeScript applications for US clients across various industries, including MVP-stage products. The position involves designing backend architecture, working with SQL/NoSQL databases, and collaborating in Scrum teams in a flexible, remote-first environment. The offer includes long-term cooperation and participation in diverse, technically challenging projects. 🗂️ Requirements: 2+ years commercial experience in Node.js, Experience with Node.js frameworks (Express.js, NestJS or similar), Strong proficiency in TypeScript, Experience with SQL databases, Experience with NoSQL databases, Knowledge of SOLID and KISS principles, Knowledge of design and architecture patterns, Experience with Docker, Experience with GitHub Actions, Basic experience with AWS services, Ability to use ORM or query builders (e.g. Prisma, Knex), English level B2, Polish level C1 📃 Skills: Node.js, TypeScript, JavaScript, Express, NestJS, Fastify, SQL, NoSQL, Prisma, Knex, Docker, AWS, GitHub, GitHubActions, React 🏢 Description: We are looking for skillful Backend Developers to join one of our teams working with US clients - referrals from the high-end American IT market. Our tech stack is built around React, Node.js and TypeScript. We are working with well-established companies and sometimes startups in their early stages (MVPs), which makes the job full of diversity and exciting challenges while crafting cutting-edge solutions. Enjoy the flexibility of working within the Polish time zone and collaborate with clients from diverse industries such as FinTech, SportsTech, MedTech, and many others. Required skills: 2+ years of commercial experience in Node.js, SQL and NoSQL DBs, knowledge of JS frameworks (e.g Express.js, NestJS), experience in TypeScript, SOLID and KISS, knowledge about design and architecture patterns, know how and why Docker and GitHub Actions works, basic usage of AWS services, English B2, Polish C1 Offer: B2B/UZL, paid days off, 100% remote (or hybrid/onsite - as you prefer), Polish time zone, flexible hours, full-time position, long-term contract, Scrum Teams Perks and Benefits: Budgets for self-development, integrations, healthcare & sport activities, Mentoring Program, Individual Career Path, Paid Time Off, Paid Health Break & more Tools you'll use: Apple MacBook Pro, Slack, GSuite, GitHub, Jira, Coda, FigJam Your future tasks and duties: Writing readable and easy-to-maintain JS/TS code with OOP flavor Writing documentation for delivered code Code review of other developers in the team Direct involvement with the design and modification of basic DB structures Propose improvements and share proactive ideas/solutions with the team to enhance the team's work processes Share insights with the team to diagnose issues and focus on solutions Actively participate in project discussions Listen to the client's needs and, after consulting the team, suggest solutions Support less experienced team members About you - Tech skills & Experience: 2+ years of commercial experience in Node.js Good experience with at least one Node.js backend framework (e.g. Express.js, NestJS, Fastify, etc) - you know most of its basic APIs/features, worked on at least 1-2 projects involving such technologies Strong proficiency in TypeScript. You have practical experience with static typing, advanced types, and configuring TS compilers, treating it as your primary language to build robust and type-safe backend applications Potentially worked with NoSQL databases and/or in-memory databases and utilized them as a data store Worked with SQL databases (integration-wise and as a basic design skill) with ORM or query builder tool (ie. Prisma, Knex) Knows the basics of building AI applications (RAG, Agents, etc.) Use AI effectively in their work About you - Soft Skills: English level B2 to cooperate with American clients Polish level C1 to communicate easily within the team Open-minded to new challenges (e.g. different frameworks) Understand the significance of MVP and prioritize the pursuit of excellence and high-quality outcomes, even amid tight project timelines. Communicate with the team to efficiently translate business complexities (user stories/tasks) into solutions (results/estimations) Staying on top with trends/news, sharing them, teaching others and aiming for the best quality solutions Strong problem-solving abilities to diagnose issues, suggest solutions, and make decisions based on project requirements Nice to have: Worked in Agile/Scrum on a daily basis consisting of people with similar skills and monitoring code quality on a daily basis Basic experience with AWS - used some services in specific cases Basic experience with Docker - know how to prepare and debug the environment and connect things up to work locally Worked in the very beginning of the product development/creation stage Understand the significance of MVP and aim to deliver top-notch results, even amid tight project timelines Recruitment process: CV Review Phone call with our Recruiter (15min) Soft-skills interview with our Recruiter (1h) Technical interview with our Specialists (2h) Decision and feedback 🥳 Meaningful projects, top-notch experts and value-driven workplace Sound good? Apply now!

🏢 Summary: Backend-heavy Fullstack Engineer role focused on building and scaling a cyber risk reporting platform used by US MSPs. The position centers on designing and owning Node/NestJS backend systems, including integrations, job queues, and data modeling, within a fast-paced product environment. You will work closely with a small, autonomous team shipping features every sprint using AI-assisted development tools. 🗂️ Requirements: Minimum 2 years commercial backend experience in Node.js or NestJS, Production experience designing schemas and writing database migrations, Hands-on experience building and debugging job queues, Experience integrating third-party APIs on the backend, Solid knowledge of TypeScript, Working experience with React, Practical experience with PostgreSQL, Practical experience with Redis, Experience using Docker, Use of AI development tools, Fluent English, Availability to work evening hours aligned with US (UTC-6) team 📃 Skills: Node.js, NestJS, TypeScript, React, PostgreSQL, Redis, Docker, BullMQ, TypeORM, Auth0, Swagger, Express, Fastify, ConnectWise, Autotask, Kaseya, Microsoft365, GoogleWorkspace 🏢 Description: We're The Digital Bunch, a cross-disciplinary digital consultancy with offices in Warsaw, Riyadh, Sydney, and London. We combine strategy, design, and technology to help companies grow. Software development is one of our core verticals, and we embed with product companies long-term as part of their engineering teams. This role is for our work on a cyber risk reporting platform. The product scans networks, endpoints, and cloud environments (Microsoft 365, Google Workspace), checks breach databases, and generates risk reports with an AI layer on top for analysis and recommendations. The reports are sold to MSPs in the US who use them to show clients where they stand on security. It's cyber tooling, nothing else. The platform has been live for 5+ years, was acquired last year by a larger company (100+ people), and is actively growing. New features ship every sprint. The codebase is mature but moves fast. You'd join a small team on our side: our CTO and one other developer. On the client side in Dallas there's a PM, QA, support, and two engineers, plus people from the parent company who rotate in when needed. Flat setup, a lot of independence. We write code with Cursor and Claude Code every day. Not as a gimmick, that's how we actually work. If you're already using AI tooling, good. If not, you'll pick it up in the first week. ⚠️ Read this first, this is a backend-heavy role Most of the interesting work lives on the server: job queues, third-party integrations, data modeling, async scans, report generation. The frontend matters, but it's not where you'll spend most of your time. If your experience is mostly React with some REST calls, this isn't the right role. We need someone who's actually built and owned Node/NestJS backends in production, schemas, queues, integrations, migrations, the whole thing. We're happy to consider someone with ~2 years of experience if those two years are genuinely backend-heavy. We're not happy to consider 6 years of frontend with a skills-list backend section. ⏰ Working hours, read this too The client team is in Dallas, Texas (UTC-6). You need to be available in the evenings: - Daily standups happen between 19:00–21:00 Polish time, 30–45 minutes - Monday planning runs at 23:00 Polish time - The rest of the day is yours. Most people work something like 12:00–20:00 or 14:00–21:00 - No weekends, no on-call If you can't do evenings, this isn't the right fit. Wanted to be upfront about that. 📌 The work You'll ship features across the full stack, weighted toward the backend: NestJS on the server, PostgreSQL and Redis underneath, React on the frontend. The backend integrates with 15+ external services (breach intelligence APIs, cloud provider APIs, PSA systems like ConnectWise), runs BullMQ job queues, and uses TypeORM and Auth0. There's always something new to wire up. About 10% of your time goes to triaging production issues reported by customers. That's engineering debugging, not answering support tickets. Small team means you have real input into what gets built and how. Nobody's handing you pixel-perfect Jira tickets. We ship behind feature flags, get it in front of users fast, and iterate. If you're the type who spends three weeks perfecting architecture before writing a line of code, this isn't your pace. First-day commits. Our CTO onboards you personally, but we expect you shipping from the start. 👉 What we're looking for - At least 2 years of commercial backend work in Node.js / NestJS (or a close equivalent, Express or Fastify with real production ownership). We'll ask about it. - You've designed schemas, written migrations, debugged queues, and integrated third-party APIs, not just consumed them from a frontend - Solid TypeScript and React. You don't need to be a CSS wizard, you need to be comfortable moving across the stack - Hands-on with PostgreSQL, Redis, Docker - You use AI tools for development (Cursor, Claude Code, Copilot, whatever works for you) - Fluent English, spoken and written. You're on daily video calls with Americans - Actually okay with working late Polish hours (see above) - Self-directed. Nobody assigns you tasks step by step 👍 Bonus points - Worked in cybersecurity, SOC/SIEM tooling, or compliance before - Know your way around BullMQ, TypeORM, Auth0, or Swagger codegen - Built integrations with PSA systems (ConnectWise, Autotask, Kaseya) or MSP-facing tooling - Worked with US-based teams or in product companies 🚫 Probably not for you if - Your CV lists React/Next/Tailwind projects and the backend section is a skills list with no project evidence - You've mostly consumed REST APIs, not built them - Your backend experience is a single side project or a bootcamp module - You want to spend most of your day on UI polish 🎉 What you get - 20,000–26,000 PLN net/month, B2B - Fully remote, or Warsaw office in central Warsaw (dogs welcome) - Long-term product work on a single platform, not project hopping - Latest hardware and tooling - Multisport card - Regular salary reviews - Referral bonuses 💃 Hiring process 1. Intro call with Alex (CTO). 15–30 min. We talk about the role, you ask questions, and we see if it makes sense for both sides. 2. Take-home task. Build a small full-stack app (React + NestJS). The NestJS side carries most of the weight. Capped at 2 hours. Use AI tools, we don't care how you get there, we care that it works and you understand it. 3. Live review. 60 min. You walk us through your code, we ask you to add a feature live (should take minutes with AI, not half an hour), then we talk architecture and how you think about systems. 4. Meet the client team. Short call with the Dallas side before we finalize.

🏢 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: Opportunity to architect and build a brand-new, high-scale, event-driven backend product from scratch using Node.js and TypeScript on AWS. The role focuses on designing resilient distributed systems, owning features end-to-end, and shaping technical direction in a high-growth environment. You will drive scalable architecture, ensure high code quality, and deploy production-ready services for global workloads. 🗂️ Requirements: 5+ years experience with Node.js and TypeScript in production environments, Advanced proficiency with AWS (Lambda, ECS, S3, RDS), Strong expertise in system design and scalability, Experience designing event-driven architectures, Experience with modern testing frameworks (Vitest, Jest, Playwright), Ability to build and deploy distributed systems, Experience with SQL and NoSQL databases, Knowledge of CI/CD practices using Docker and Kubernetes, Professional English proficiency 📃 Skills: Node.js, TypeScript, AWS, Lambda, ECS, S3, RDS, Vitest, Jest, Playwright, Docker, Kubernetes, SQL, NoSQL, Go, React, CI/CD 🏢 Description: We are looking for a high-impact engineer to architect a brand-new product from the ground up. In this role, you will bypass maintenance of legacy systems to design and develop high-scale, event-driven backend infrastructures. Operating at the intersection of technical rigor and rapid product evolution, you will thrive in an environment of high ambiguity where your architectural decisions define the roadmap. Core Responsibilities Architect and scale mission-critical backend services using Node.js and TypeScript . Design and implement high-performance APIs and sophisticated event-driven architectures on AWS . Engineer resilient, distributed systems capable of managing intensive global workloads. Own feature development end-to-end, navigating the lifecycle from initial design to production deployment. Partner closely with product and cross-functional engineering leads to drive technical innovation. Mentor the engineering squad and champion elite standards in code quality, security, and testing. Adapt and pivot technical strategies as the product scales and new challenges emerge. Technical Requirements 5+ years of hands-on experience deploying Node.js and TypeScript in high-stakes production environments. Advanced proficiency with the AWS ecosystem, including Lambda, ECS, S3, and RDS. Deep expertise in system design, scalability, and modern event-driven paradigms. Experience utilizing modern testing frameworks such as Vitest, Jest, or Playwright to ensure zero-defect deployments. Elite problem-solving skills with the ability to operate autonomously in a fast-moving hub. Professional fluency in English with a track record of driving cross-functional alignment. A high-velocity mindset suited for a dynamic, high-growth engineering culture. Additional Assets Hands-on experience with Go . Background in distributed systems or complex event-driven platforms. Experience integrating LLMs or modern AI tooling into production workflows. Practical knowledge of React or modern frontend frameworks. Deep understanding of SQL/NoSQL database optimization and CI/CD best practices via Docker and Kubernetes. The Offer Competitive compensation aligned with the top-tier Kraków tech market (UoP or B2B options). Flexible hybrid work model based in the heart of Kraków. Radical ownership and the unique opportunity to shape a global product from day one. Collaborative, English-speaking engineering environment within a stable, profitable firm with a long-term vision.