Technical Lead (Node.js + React) - OneRail’s Technology Hub - Poland

OneRail; Kraków; On-site; PLN 312,480 - 357,120; Full time

Benefits offered by this job

Hybrid work model

Office in Kraków

Competitive salary

Career development

Job summary

OneRail in Kraków, Poland is seeking a Technical Lead (Node.js + React) to guide a team of engineers while remaining hands-on in coding. You will shape architecture, implement scalable microservices, and oversee CI/CD, security, and observability.

The role blends leadership with technical excellence, mentoring engineers, recruiting top talent, collaborating with Product to align roadmaps, and driving velocity and reliability across the SDLC.

Qualifications

• 8+ years in software engineering, with Node.js and React experience.
• 2+ years in technical leadership or mentoring.
• Strong RESTful API design and microservices experience.
• Cloud + containerization (Azure/GCP, Docker, Kubernetes).
• CI/CD, deployment, monitoring, and reliability focus.
• Excellent English communication (B2+).

Responsibilities

• Define technical direction and pivotal design decisions for scalable architecture.
• Stay hands-on in coding while leading by example and enforcing best practices.
• Implement scalable microservices, API gateways, and event-driven patterns.
• Champion automated testing, CI/CD, and observability.
• Oversee Azure-centric cloud architecture with performance and security focus.
• Mentor 5–7 engineers, provide career guidance and growth.
• Recruit and interview engineering talent to strengthen the team.
• Collaborate with Product to align roadmap and optimize workflows.
• Improve SDLC efficiency and maintain low cycle times.
• Set engineering KPIs and leverage data-driven insights.

Tools

Docker

Kubernetes

RabbitMQ

Kafka

MySQL

MongoDB

CosmosDB

Job description

OneRail is a technology company innovating solutions for multi-modal delivery. We build a delivery orchestration platform that connects shippers to a comprehensive courier ecosystem to automate, optimize and control the entire delivery supply chain from demand signal to proof of delivery.

Technical Lead (Node.js + React)

Join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations. In this hands‑on leadership role you guide engineering teams in delivering scalable, high‑quality software solutions, 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+).

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