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Reaktor

Global consultancy delivering strategy, design, engineering

Lead Developer

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeHelsinki, FinlandNo salary listed

About the Job

Requirements

  • Have experience across back-end, front-end, and operations; at least eight years of relevant work experience is typically considered beneficial for success in this role.
  • Have a solid understanding of agile project management principles.
  • Have previous team-lead and consulting experience.
  • Have experience working with multiple client stakeholders to solve complex problems.
  • Have previous experience with at least one common server-side programming language, such as TypeScript, JavaScript, Node.js, Java, Scala, Kotlin, Clojure, or Python.
  • Have strong knowledge of at least one common client-side language and framework, such as TypeScript, JavaScript, React, Swift, or React Native.
  • Have relevant skills to create new back-end services and modify CI/CD pipelines when required.
  • Have database know-how, such as PostgreSQL.
  • Have fluent verbal and written English skills.
  • Be willing to work in a hybrid setup, with the team at the office or at client premises.

Responsibilities

  • Serve as the first point of contact for the client on technical questions and delivery quality.
  • Work with the client's technical and business teams, facilitating collaboration among stakeholders to ensure quality delivery.
  • Implement new features involving front-end applications, back-end servers, and/or databases, and identify infrastructure needs to support the team's work.
  • Improve the team's ways of working by empowering members to find effective workflows and supporting a healthy work-life balance.
  • Build relationships with the client to support future collaboration.
  • Assist the team in adopting and following agile practices.

About the Company

Reaktor

Global consultancy delivering strategy, design, engineering

Reaktor is a consultancy and agency that combines strategy, design, creative, and high‑performance engineering to build future products and services. It works by guiding client projects from insight to execution, using human, cultural, and technological understanding across a global scale with a Nordic, boutique mindset. The team translates complex challenges into tangible, scalable solutions through hands‑on making and strong execution culture rooted in technical skills. What sets Reaktor apart is its emphasis on unmatched execution capability, a maker culture, and leadership in the workplace transformation space, delivering projects of any size with discipline and speed. The company’s goal is to help clients stay ahead in an increasingly complex and changing world by creating and shipping meaningful products, services, and experiences while continuously sharing knowledge and best practices.

Company size
501-1,000
Company stage
IPO
Headquarters
Helsinki, Finland
Founded
2000

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