Arrive

Senior Full Stack Engineer – B2B Web

Arrive

full-time

Posted on:

Location Type: Hybrid

Location: Łódź • Poland

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Job Level

Senior

Tech Stack

JavaJavaScriptKafkaKotlinReact

About the role

  • Lead the development of high-quality features across the frontend (React) and backend (Kotlin), ensuring a seamless experience for our B2B users.
  • Drive the evolution of our architecture by identifying legacy bottlenecks and implementing modern, robust solutions.
  • Oversee critical engineering processes including QA, A/B testing, and DevOps to maintain high system reliability.
  • Mentor team members and share technical expertise to foster a culture of continuous learning and growth.

Requirements

  • Extensive experience building complex web applications with React and modern frontend ecosystems.
  • Strong proficiency in backend development, specifically with Kotlin and Express.js (experience with Java is also welcome).
  • Proven experience working with distributed messaging systems, specifically Kafka.
  • Hands-on experience with A/B testing methodologies and data-driven decision-making.
  • Solid understanding of DevOps processes.
  • Professional fluency in English and a track record of working effectively in distributed, international teams.
Benefits
  • A standout perk of this role is the opportunity to heavily upskill in AI; Arrive invests deeply in AI initiatives and trainings to boost engineering workflows.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
ReactKotlinExpress.jsJavaKafkaA/B testingDevOpsweb applicationsfrontend developmentbackend development
Soft Skills
mentoringtechnical expertisecontinuous learningteam collaborationcommunication