Lead React Native Developer

🏢 Summary: Hands-on Technical Lead role focused on architecting, scaling, and optimizing React Native mobile applications supporting real-time logistics workflows. The position combines technical leadership with active development, ensuring performance, reliability, and seamless integration with backend systems in production environments. It involves setting engineering standards, improving CI/CD processes, and mentoring mobile engineers. 🗂️ Requirements: 8+ years professional software engineering experience, Significant hands-on mobile development experience, 2+ years in technical leadership or team lead role, Strong experience building and scaling React Native applications in production, Solid understanding of iOS and Android platforms, Proficiency in React Native and TypeScript, Experience designing and consuming RESTful APIs, Experience with real-time service integrations, Ability to ensure application performance, quality, and stability, Polish B2+ and English B2+ 📃 Skills: React, ReactNative, TypeScript, iOS, Android, REST, APIs, CI/CD, Git, Mobile, JavaScript 🏢 Description: Overview Technical Lead, Mobile Engineering is a hands-on technical leadership role responsible for shaping and scaling OneRail’s mobile application ecosystem that powers real-time last mile orchestration, driver workflows, and enterprise delivery visibility. This role exists to ensure our mobile solutions are reliable, performant, and resilient in real-world logistics environments where connectivity may fluctuate and operational precision is critical. Responsibilities Own and evolve the architecture of OneRail’s mobile applications built in React Native with native iOS and Android integrations. Lead the design and implementation of scalable, high-performance mobile solutions supporting real-time logistics workflows. Partner closely with Product and Design teams to translate business requirements into intuitive, reliable mobile experiences for drivers and operational users. Ensure application performance, responsiveness, quality, and stability in production environments. Establish and enforce engineering standards for code quality, testing, observability, security, and CI/CD pipelines. Conduct and contribute to regular code reviews to maintain high engineering standards. Build and maintain reusable software components, shared libraries, and mobile infrastructure that integrate with backend. Analyze, benchmark, and optimize mobile applications for performance, scalability, and efficiency. Balance feature development with technical debt reduction and long-term platform sustainability. Improve developer experience through tooling enhancements, workflow automation, and release process optimization. Mentor and develop mobile engineers, supporting skill growth and career progression. Support hiring, onboarding, and retention of top mobile engineering talent. Qualifications 8+ years of professional software engineering experience, including significant hands-on mobile development. 2+ years of experience in technical leadership or team lead capacity. Strong experience building and scaling React Native applications in production environments. Solid understanding of native mobile platforms (iOS and Android) and their integration with cross-platform frameworks. Proficiency in React Native, TypeScript Experience designing and consuming RESTful APIs and real-time service integrations. Strong problem-solving skills with the ability to balance business priorities and technical excellence. Excellent communication and collaboration skills (Polish B2+ & English B2+) Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week). Salary level: 28 000 – 32 000 PLN/ month

🏢 Summary: Hands-on Technical Lead role focused on architecting and scaling React Native mobile applications supporting real-time logistics workflows. The position combines technical leadership with active mobile development, ensuring high performance, reliability, and seamless integration with backend systems. It involves setting engineering standards, optimizing CI/CD processes, and mentoring mobile engineers in a production environment. 🗂️ Requirements: 8+ years of professional software engineering experience, 2+ years of technical leadership experience, Strong experience with React Native in production, Experience with native iOS and Android integrations, Proficiency in TypeScript, Experience designing and consuming RESTful APIs, Experience with real-time service integrations, Ability to ensure code quality, testing, and CI/CD standards, Polish B2+, English B2+ 📃 Skills: React, ReactNative, TypeScript, iOS, Android, REST, CI/CD, Git, APIs 🏢 Description: Overview Technical Lead, Mobile Engineering is a hands-on technical leadership role responsible for shaping and scaling OneRail’s mobile application ecosystem that powers real-time last mile orchestration, driver workflows, and enterprise delivery visibility. This role exists to ensure our mobile solutions are reliable, performant, and resilient in real-world logistics environments where connectivity may fluctuate and operational precision is critical. Responsibilities Own and evolve the architecture of OneRail’s mobile applications built in React Native with native iOS and Android integrations. Lead the design and implementation of scalable, high-performance mobile solutions supporting real-time logistics workflows. Partner closely with Product and Design teams to translate business requirements into intuitive, reliable mobile experiences for drivers and operational users. Ensure application performance, responsiveness, quality, and stability in production environments. Establish and enforce engineering standards for code quality, testing, observability, security, and CI/CD pipelines. Conduct and contribute to regular code reviews to maintain high engineering standards. Build and maintain reusable software components, shared libraries, and mobile infrastructure that integrate with backend. Analyze, benchmark, and optimize mobile applications for performance, scalability, and efficiency. Balance feature development with technical debt reduction and long-term platform sustainability. Improve developer experience through tooling enhancements, workflow automation, and release process optimization. Mentor and develop mobile engineers, supporting skill growth and career progression. Support hiring, onboarding, and retention of top mobile engineering talent. Qualifications 8+ years of professional software engineering experience, including significant hands-on mobile development. 2+ years of experience in technical leadership or team lead capacity. Strong experience building and scaling React Native applications in production environments. Solid understanding of native mobile platforms (iOS and Android) and their integration with cross-platform frameworks. Proficiency in React Native, TypeScript Experience designing and consuming RESTful APIs and real-time service integrations. Strong problem-solving skills with the ability to balance business priorities and technical excellence. Excellent communication and collaboration skills (Polish B2+ & English B2+) Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week). Salary level: 28 000 – 32 000 PLN/ month

🏢 Summary: Hands-on Technical Lead role responsible for architecting and scaling React Native mobile applications that support real-time logistics workflows and enterprise delivery visibility. The position combines technical leadership with active mobile development, focusing on performance, reliability, and resilient solutions in production environments. It includes ownership of mobile architecture, engineering standards, and CI/CD practices. 🗂️ Requirements: 8+ years of professional software engineering experience, 2+ years of technical leadership experience, Strong experience with React Native in production, Experience with native iOS and Android integration, Proficiency in TypeScript, Experience designing and consuming RESTful APIs, Experience with real-time service integrations, Ability to establish and enforce CI/CD practices, English B2+, Polish B2+ 📃 Skills: ReactNative, TypeScript, iOS, Android, REST, CI/CD, JavaScript, APIs 🏢 Description: Overview Technical Lead, Mobile Engineering is a hands-on technical leadership role responsible for shaping and scaling OneRail’s mobile application ecosystem that powers real-time last mile orchestration, driver workflows, and enterprise delivery visibility. This role exists to ensure our mobile solutions are reliable, performant, and resilient in real-world logistics environments where connectivity may fluctuate and operational precision is critical. Responsibilities Own and evolve the architecture of OneRail’s mobile applications built in React Native with native iOS and Android integrations. Lead the design and implementation of scalable, high-performance mobile solutions supporting real-time logistics workflows. Partner closely with Product and Design teams to translate business requirements into intuitive, reliable mobile experiences for drivers and operational users. Ensure application performance, responsiveness, quality, and stability in production environments. Establish and enforce engineering standards for code quality, testing, observability, security, and CI/CD pipelines. Conduct and contribute to regular code reviews to maintain high engineering standards. Build and maintain reusable software components, shared libraries, and mobile infrastructure that integrate with backend. Analyze, benchmark, and optimize mobile applications for performance, scalability, and efficiency. Balance feature development with technical debt reduction and long-term platform sustainability. Improve developer experience through tooling enhancements, workflow automation, and release process optimization. Mentor and develop mobile engineers, supporting skill growth and career progression. Support hiring, onboarding, and retention of top mobile engineering talent. Qualifications 8+ years of professional software engineering experience, including significant hands-on mobile development. 2+ years of experience in technical leadership or team lead capacity. Strong experience building and scaling React Native applications in production environments. Solid understanding of native mobile platforms (iOS and Android) and their integration with cross-platform frameworks. Proficiency in React Native, TypeScript Experience designing and consuming RESTful APIs and real-time service integrations. Strong problem-solving skills with the ability to balance business priorities and technical excellence. Excellent communication and collaboration skills (Polish B2+ & English B2+) Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week). Salary level: 28 000 – 32 000 PLN/ month

🏢 Summary: Hands-on Technical Lead role focused on building and scaling a delivery orchestration platform using Node.js and React. The position combines architectural decision-making, microservices and cloud-based system design with active coding and team leadership. It involves leading engineers to deliver high-availability, event-driven solutions in an Azure-based environment. 🗂️ Requirements: 8+ years software engineering experience, Min. 2 years in technical leadership role, Experience with Node.js and React, Experience designing scalable RESTful APIs, Knowledge of microservices architecture, Experience with message queues, Experience with relational or NoSQL databases, Experience with Azure or GCP cloud platforms, Experience with Docker and Kubernetes, Experience with CI/CD practices, Experience with Agile methodologies, Experience in software release management and monitoring, Advanced English (B2+) 📃 Skills: Node.js, React, REST, Microservices, RabbitMQ, Kafka, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, Agile 🏢 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 Technical Lead (Node.js + React) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be a hands-on leadership position where you guide engineering teams to deliver scalable, high-quality software solutions. This is the perfect role for experienced engineers who thrive in technical decision-making, architecture, and mentorship—while staying engaged in hands-on coding. Key Responsibilities: Define the technical direction, making pivotal design decisions to ensure our architecture is scalable, maintainable, and high performing. Stay hands-on with coding, leading by example and ensuring adherence to best practices in security, performance, development, deployment and observability. Implement scalable microservices, API gateways, and event-driven architectures, ensuring high availability, disaster recovery and fault tolerance strategies are in place. Champion high-quality code testing, automation testing, and continuous integration/continuous deployment (CI/CD). Oversee Azure-based cloud architecture, optimizing performance, security, and cost efficiency. Directly supervise, mentor, and develop a team of 5-7 engineers, providing career guidance and fostering a culture of engineering excellence full of collaboration, accountability and professional growth. Actively recruit and interview top talent to strengthen the engineering team. Collaborate with Product Managers to align roadmap priorities, streamline development workflows, and enhance team processes for improved efficiency and operational excellence. Optimize development workflows and SDLC processes to improve team velocity, efficiency and maintain low cycle times. Establish engineering KPIs and leverage data-driven insights to enhance performance. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 8+ years in software engineering (ideally Node.js + React tech stack), with at least 2 years in a technical leadership role. Demonstrated expertise in designing and developing scalable APIs, with knowledge of RESTful principles and best practices. Knowledge of microservices architecture and related design patterns / best practices. Experience with message queues (e.g., RabbitMQ, Kafka) and event-driven architecture / patterns. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Experience utilizing cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Experience in managing software releases, performance monitoring, and reliability improvements. Strong problem-solving skills and ability to work in a fast-paced environment. Ability to explain complex technical concepts to engineers, executives, and cross-functional teams. 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: 28 000 – 32 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Hands-on Technical Lead role focused on building and scaling a Node.js and React-based delivery orchestration platform. The position combines architecture design, microservices development, and Azure cloud optimization with leading engineering teams. You will drive technical decisions, ensure high-quality software delivery, and implement scalable, event-driven systems. 🗂️ Requirements: 8+ years of software engineering experience, Min. 2 years in technical leadership role, Strong experience with Node.js and React, Experience designing and developing scalable RESTful APIs, Knowledge of microservices architecture and design patterns, Experience with message queues and event-driven architecture, Experience with relational or NoSQL databases, Experience with Azure or GCP cloud services, Experience with Docker and Kubernetes, Experience with CI/CD practices and Agile methodologies, Experience with software releases and performance monitoring 📃 Skills: Node.js, React, JavaScript, REST, Microservices, RabbitMQ, Kafka, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, Agile 🏢 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 Technical Lead (Node.js + React) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be a hands-on leadership position where you guide engineering teams to deliver scalable, high-quality software solutions. This is the perfect role for experienced engineers who thrive in technical decision-making, architecture, and mentorship—while staying engaged in hands-on coding. Key Responsibilities: Define the technical direction, making pivotal design decisions to ensure our architecture is scalable, maintainable, and high performing. Stay hands-on with coding, leading by example and ensuring adherence to best practices in security, performance, development, deployment and observability. Implement scalable microservices, API gateways, and event-driven architectures, ensuring high availability, disaster recovery and fault tolerance strategies are in place. Champion high-quality code testing, automation testing, and continuous integration/continuous deployment (CI/CD). Oversee Azure-based cloud architecture, optimizing performance, security, and cost efficiency. Directly supervise, mentor, and develop a team of 5-7 engineers, providing career guidance and fostering a culture of engineering excellence full of collaboration, accountability and professional growth. Actively recruit and interview top talent to strengthen the engineering team. Collaborate with Product Managers to align roadmap priorities, streamline development workflows, and enhance team processes for improved efficiency and operational excellence. Optimize development workflows and SDLC processes to improve team velocity, efficiency and maintain low cycle times. Establish engineering KPIs and leverage data-driven insights to enhance performance. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 8+ years in software engineering (ideally Node.js + React tech stack), with at least 2 years in a technical leadership role. Demonstrated expertise in designing and developing scalable APIs, with knowledge of RESTful principles and best practices. Knowledge of microservices architecture and related design patterns / best practices. Experience with message queues (e.g., RabbitMQ, Kafka) and event-driven architecture / patterns. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Experience utilizing cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Experience in managing software releases, performance monitoring, and reliability improvements. Strong problem-solving skills and ability to work in a fast-paced environment. Ability to explain complex technical concepts to engineers, executives, and cross-functional teams. 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: 28 000 – 32 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Hands-on Technical Lead role focused on architecting and scaling a mobile ecosystem for a high-growth enterprise delivery platform. The position involves leading a mobile team, owning technical strategy, and building performant React Native applications with deep native iOS and Android integrations. The role emphasizes offline-first systems, real-time GPS tracking, and high-concurrency mobile architectures. 🗂️ Requirements: 8+ years of software engineering experience, Production-level mobile development experience, 2+ years in technical leadership or team lead role, Experience driving architecture and mentoring engineers, Expert knowledge of React Native, Expert knowledge of TypeScript, Deep understanding of native iOS internals, Deep understanding of native Android internals, Fluent English, Fluent Polish (B2+ minimum) 📃 Skills: ReactNative, TypeScript, iOS, Android, GPS, Geofencing 🏢 Description: Technical Lead (Mobile) The Opportunity: We are looking for a hands-on Technical Lead to own, architect, and scale the mobile ecosystem powering a high-growth US enterprise delivery platform. You will build and mentor a small, agile mobile team from day one in a newly established Kraków R&D hub. This is a greenfield product-minded role —not an order-taker position. You will have full ownership of technical architecture, strategy, and engineering standards. The Core Challenges Real-World Engineering: Architecting robust, battery-optimized systems that survive unstable field connectivity ( offline-first data synchronization ). High-Concurrency Tracking: Implementing high-performance real-time GPS/location tracking and geofencing workflows for millions of operational end-users. Hybrid Architecture: Scaling a core React Native platform while tightly integrating native iOS/Android subsystems where performance is critical. Your Profile 8+ years in software engineering with deep, production-level mobile development experience. 2+ years in a technical leadership/team lead capacity, driving architecture and mentoring junior/senior engineers. Expert-level proficiency in React Native , TypeScript , and deep understanding of native iOS/Android internals. Fluent in English and Polish (B2+ minimum for collaboration across EU/US time zones). The Company A fast-growing, highly decorated US SaaS platform managing a network of over 12 million drivers. Consistently ranked on Forbes’ America's Best Startup Employers . They combine the technical agility of an early-stage startup with the financial backing and stability of an established enterprise market leader.

🏢 Summary: Hands-on Technical Lead role focused on designing and delivering scalable Node.js and React-based solutions within a cloud-native, microservices architecture. The position combines technical leadership, architectural decision-making, and active coding to build high-performance delivery orchestration systems. The role emphasizes API design, event-driven systems, CI/CD practices, and Azure cloud optimization. 🗂️ Requirements: 8+ years of software engineering experience, Minimum 2 years in a technical leadership role, Strong experience with Node.js and React, Experience designing and developing scalable RESTful APIs, Knowledge of microservices architecture and design patterns, Experience with message queues and event-driven architecture, Experience with relational or NoSQL databases, Experience with Azure or GCP cloud services, Experience with Docker and Kubernetes, Experience with CI/CD pipelines and Agile methodologies, Experience in software release management and performance monitoring, Advanced English proficiency (B2+) 📃 Skills: Node.js, React, REST, Microservices, RabbitMQ, Kafka, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, Agile 🏢 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 Technical Lead (Node.js + React) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be a hands-on leadership position where you guide engineering teams to deliver scalable, high-quality software solutions. This is the perfect role for experienced engineers who thrive in technical decision-making, architecture, and mentorship—while staying engaged in hands-on coding. Key Responsibilities: Define the technical direction, making pivotal design decisions to ensure our architecture is scalable, maintainable, and high performing. Stay hands-on with coding, leading by example and ensuring adherence to best practices in security, performance, development, deployment and observability. Implement scalable microservices, API gateways, and event-driven architectures, ensuring high availability, disaster recovery and fault tolerance strategies are in place. Champion high-quality code testing, automation testing, and continuous integration/continuous deployment (CI/CD). Oversee Azure-based cloud architecture, optimizing performance, security, and cost efficiency. Directly supervise, mentor, and develop a team of 5-7 engineers, providing career guidance and fostering a culture of engineering excellence full of collaboration, accountability and professional growth. Actively recruit and interview top talent to strengthen the engineering team. Collaborate with Product Managers to align roadmap priorities, streamline development workflows, and enhance team processes for improved efficiency and operational excellence. Optimize development workflows and SDLC processes to improve team velocity, efficiency and maintain low cycle times. Establish engineering KPIs and leverage data-driven insights to enhance performance. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 8+ years in software engineering (ideally Node.js + React tech stack), with at least 2 years in a technical leadership role. Demonstrated expertise in designing and developing scalable APIs, with knowledge of RESTful principles and best practices. Knowledge of microservices architecture and related design patterns / best practices. Experience with message queues (e.g., RabbitMQ, Kafka) and event-driven architecture / patterns. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Experience utilizing cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Experience in managing software releases, performance monitoring, and reliability improvements. Strong problem-solving skills and ability to work in a fast-paced environment. Ability to explain complex technical concepts to engineers, executives, and cross-functional teams. 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: 28 000 – 32 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Technical Lead (.NET) role focused on leading engineering teams in building scalable logistics and supply chain software solutions using microservices and cloud technologies. The position combines hands-on coding, architecture design, team leadership, and CI/CD process optimization in a hybrid work environment based in Kraków. Candidates should have strong .NET expertise, cloud experience, and proven technical leadership skills. 🗂️ Requirements: 8+ years of software engineering experience, Minimum 2 years in a technical leadership role, Strong experience with .NET and C#, Experience designing and developing scalable APIs, Knowledge of RESTful principles and best practices, Experience with microservices architecture, Experience with message queues, Experience with event-driven architecture, Experience with MySQL, MongoDB, or CosmosDB, Experience with Azure and GCP cloud services, Experience with Docker and Kubernetes, Experience with Agile methodologies, Experience with CI/CD practices, Experience managing software releases and performance monitoring, Advanced English proficiency (B2+) 📃 Skills: .NET, C#, Node.js, REST, Microservices, RabbitMQ, Kafka, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, Agile 🏢 Description: As Technical Lead (.NET) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations. Your role will be a hands-on leadership position where you guide engineering teams to deliver scalable, high-quality software solutions. This is the perfect role for experienced engineers who thrive in technical decision-making, architecture, and mentorship—while staying engaged in hands-on coding. Key Responsibilities: - Define the technical direction, making pivotal design decisions to ensure our architecture is scalable, maintainable, and high performing. - Stay hands-on with coding, leading by example and ensuring adherence to best practices in security, performance, development, deployment and observability. - Implement scalable microservices, API gateways, and event-driven architectures, ensuring high availability, disaster recovery and fault tolerance strategies are in place. - Champion high-quality code testing, automation testing, and continuous integration/continuous deployment (CI/CD). - Oversee Azure-based cloud architecture, optimizing performance, security, and cost efficiency. - Directly supervise, mentor, and develop a team of 5-7 engineers, providing career guidance and fostering a culture of engineering excellence full of collaboration, accountability and professional growth. - Actively recruit and interview top talent to strengthen the engineering team. - Collaborate with Product Managers to align roadmap priorities, streamline development workflows, and enhance team processes for improved efficiency and operational excellence. - Optimize development workflows and SDLC processes to improve team velocity, efficiency and maintain low cycle times. - Establish engineering KPIs and leverage data-driven insights to enhance performance. - Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: - 8+ years in software engineering (ideally .NET C#), with at least 2 years in a technical leadership role. - Experience in other tech stacks like Node.js as a plus. - Demonstrated expertise in designing and developing scalable APIs, with knowledge of RESTful principles and best practices. - Knowledge of microservices architecture and related design patterns / best practices. - Experience with message queues (e.g., RabbitMQ, Kafka) and event-driven architecture / patterns. - Experience with databases such as MySQL, MongoDB, CosmosDB or similar. - Experience utilizing cloud services (Azure and GCP) and containerization (Docker, Kubernetes). - Experience with Agile methodologies and CI/CD practices. - Experience in managing software releases, performance monitoring, and reliability improvements. - Strong problem-solving skills and ability to work in a fast-paced environment. - Ability to explain complex technical concepts to engineers, executives, and cross-functional teams. - Advanced proficiency in English, both written and spoken (B2+). Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred) Salary levels: 28 000 – 32 000 PLN/ month

🏢 Summary: Hands-on Technical Lead (.NET) role focused on designing and delivering scalable, high-performance software solutions for logistics platforms. The position combines architectural decision-making, microservices and cloud-based system design with active coding and team leadership. You will drive technical direction, ensure best engineering practices, and oversee Azure-based cloud environments and CI/CD processes. 🗂️ Requirements: 8+ years of software engineering experience, Minimum 2 years in technical leadership role, Strong experience with .NET and C#, Experience designing and developing scalable RESTful APIs, Knowledge of microservices architecture and design patterns, Experience with message queues, Experience with relational or NoSQL databases, Experience with Azure and GCP cloud services, Experience with Docker and Kubernetes, Experience with CI/CD practices, Experience with Agile methodologies, Experience managing software releases and performance monitoring, Advanced English proficiency (B2+) 📃 Skills: .NET, C#, Node.js, REST, Microservices, RabbitMQ, Kafka, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, Agile 🏢 Description: As Technical Lead (.NET) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be a hands-on leadership position where you guide engineering teams to deliver scalable, high-quality software solutions. This is the perfect role for experienced engineers who thrive in technical decision-making, architecture, and mentorship—while staying engaged in hands-on coding. Key Responsibilities: Define the technical direction, making pivotal design decisions to ensure our architecture is scalable, maintainable, and high performing. Stay hands-on with coding, leading by example and ensuring adherence to best practices in security, performance, development, deployment and observability. Implement scalable microservices, API gateways, and event-driven architectures, ensuring high availability, disaster recovery and fault tolerance strategies are in place. Champion high-quality code testing, automation testing, and continuous integration/continuous deployment (CI/CD). Oversee Azure-based cloud architecture, optimizing performance, security, and cost efficiency. Directly supervise, mentor, and develop a team of 5-7 engineers, providing career guidance and fostering a culture of engineering excellence full of collaboration, accountability and professional growth. Actively recruit and interview top talent to strengthen the engineering team. Collaborate with Product Managers to align roadmap priorities, streamline development workflows, and enhance team processes for improved efficiency and operational excellence. Optimize development workflows and SDLC processes to improve team velocity, efficiency and maintain low cycle times. Establish engineering KPIs and leverage data-driven insights to enhance performance. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 8+ years in software engineering (ideally .NET C#), with at least 2 years in a technical leadership role. Experience in other tech stacks like Node.js as a plus. Demonstrated expertise in designing and developing scalable APIs, with knowledge of RESTful principles and best practices. Knowledge of microservices architecture and related design patterns / best practices. Experience with message queues (e.g., RabbitMQ, Kafka) and event-driven architecture / patterns. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Experience utilizing cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Experience in managing software releases, performance monitoring, and reliability improvements. Strong problem-solving skills and ability to work in a fast-paced environment. Ability to explain complex technical concepts to engineers, executives, and cross-functional teams. Advanced proficiency in English, both written and spoken (B2+). Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred) Salary levels: 28 000 – 32 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Senior Mobile Developer (React Native) role focused on building and optimizing high-performance cross-platform mobile applications for iOS and Android within a delivery orchestration platform. The position involves developing advanced features, integrating APIs, implementing native modules, and improving CI/CD processes. You will collaborate with cross-functional teams to deliver scalable, secure, and production-ready mobile solutions. 🗂️ Requirements: 8+ years of mobile app development experience, Strong commercial experience with React Native, Experience with React ecosystem, Experience with state management libraries (Redux, MobX, Zustand or similar), Experience with React Navigation and deep linking, Experience integrating REST or GraphQL APIs, Experience handling offline data storage, Understanding of app lifecycle and background tasks, Experience with push notifications, Experience with native modules and platform-specific integrations, Knowledge of mobile security best practices, Experience with data persistence, Understanding of cloud services (AWS, GCP or Azure), Experience with CI/CD practices, Experience with Agile methodologies, Experience publishing apps to App Store and Google Play 📃 Skills: React, ReactNative, Redux, MobX, Zustand, ReactNavigation, REST, GraphQL, AsyncStorage, SQLite, Realm, iOS, Android, AWS, GCP, Azure, CI/CD, Agile 🏢 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 Mobile Developer (React Native) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations. In this role, you will work closely with product owners, designers, and other developers to build and maintain high-performance applications that run on iOS and Android platforms. If you have a passion for single code base development, a strong background in React Native, and enjoy working in a team-oriented environment, we encourage you to apply. Key Responsibilities: Design and develop advanced mobile applications using React Native. Integrate APIs. Implement modern UI/UX designs with pixel-perfect precision across iOS and Android. Write clean, modular, well-tested code following architecture patterns and best practices typical for mobile apps development. Identify and resolve performance bottlenecks, memory leaks, and UI glitches. Implement native modules and platform-specific integrations (camera, geolocation, push notifications, local storage). Participate in code reviews, testing, and debugging to ensure high code quality and reliability. Assist in automating deployment processes and improving CI/CD pipelines. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 8+ years of experience in mobile apps development, with a particular focus on efficiency optimization and code reuse. Strong commercial experience with React Native and the React ecosystem Experience with state management (Redux, MobX, Zustand, or similar). Familiarity with React Navigation and deep linking. Experience integrating APIs (REST, GraphQL) and handling offline data (e.g., AsyncStorage, SQLite, Realm). Understanding of app lifecycle management, background tasks, and push notifications. Experience with platform-specific integrations (e.g., camera, geolocation, local storage). Understanding of mobile security best practices. Familiarity with mobile app design principles and UI/UX best practices. Familiarity with publishing to App Store and Google Play. Understanding of cloud services (AWS, GCP, or Azure). Experience with data persistence Experience with Agile methodologies and CI/CD practices. 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!