Reaktor

Est. expiry Apr 24, 2025

Last seen Oct 4

Posted Mar 20, 2025 · 563 days ago

Open 563 days, longer than the usual 12 for this role

Software Developer

Helsinki
OnsiteFull-time, Mid-Level
Estimated €3,708 - €4,762
At a glance

Full-stack developer at Reaktor, Helsinki, English required, growth and DEI-focused culture.

Original job description

Reaktor's award-winning tech community is looking for full-stack developers to join us in Helsinki. If you are in your element with a full software development cycle, have a passion for solving human problems with a holistic approach, and are curious to experience working in a low-hierarchy environment, you might just be what we're looking for. AS A FULL STACK DEVELOPER AT REAKTOR, YOUR JOB IS TO BE AN EXPERT IN A RANGE OF SOFTWARE DEVELOPMENT RESPONSIBILITIES SPANNING THE ENTIRE SOFTWARE DEVELOPMENT LIFECYCLE, FROM FRONT-END TO PRODUCTION. Your daily tasks include: - Working together with the client’s tech and business teams and helping them to pick the right technologies suitable for their needs. - Implementing new features that require changes to frontend applications, backend servers, and/or databases, even on infrastructure. - Delivering the client and the team with a world-class technical expertise. - Other software development-related tasks, such as debugging, designing, and participating in creating the architecture. YOU ARE A CURIOUS-MINDED DEVELOPER WHO IS COMFORTABLE WORKING ON BOTH THE BACK-END AND FRONT-END OF AN APP AND UNDERSTANDS THE ROLE OF INFRASTRUCTURE IN EVERYDAY TASKS. To thrive in this position, you’ll need: - Experience in a broad range of software development modalities (backend, frontend, ops, and consulting skills). - We don’t have a hard limit with years of experience, but we’ve noticed that these competencies usually take several years to accumulate. - Previous experience with at least one common server-side programming language. Currently, many of our projects are built with TypeScript/JavaScript and Node.js. But, Java/Scala/Kotlin, Clojure, and Python are also used. - Strong knowledge of at least one common client-side language and framework. We often use TypeScript/JavaScript and React on our web app projects and Swift, Java/Scala/Kotlin, or TypeScript/JavaScript React-native on mobile. - Relevant skills to create new backend services and build CI/CD pipelines when the project requires. - Foundational knowledge in DevOps, including Continuous Integration (CI), automated deployment, and test automation - Know-how on databases (e.g., PostgreSQL). - To be comfortable engaging with the client stakeholders when needed. - Fluent verbal & written English skills. Finnish skills are seen as an advantage. WHO WE ARE WHY JOIN US? For two decades, we’ve been developing qualities and capabilities for adapting, reacting, and supporting change – building Reaktor to hold up in a fast-paced environment while ensuring the well-being of our people.

The text above is the employer's original job description, extracted as written. Other details on this page, like salary, responsibilities, and requirements, are interpreted from that text by our system, not values the employer explicitly confirmed, so treat them as our best interpretation rather than verified facts.

Skills & Technologies
TypeScript/JavaScriptNode.jsReactCI/CDPostgreSQL
How this salary compares
Estimated €3,708 - €4,762Est. take-home €2,764 - €3,310

Estimated from 4,274 comparable listings

19% below mid-level roles
€3,500€4,500 median€6,900
Monthly salary comparison for Software Developer
MarketLower bound (25th percentile)MedianUpper bound (75th percentile)
mid-level roles€3,580 per month€4,500 per month€6,000 per month
This offer€3,708 per month€4,235 per month€4,762 per month
Responsibilities
  • Work with client tech/business teams to select technologies
  • Implement new features across frontend, backend, databases, and infrastructure
  • Deliver world-class technical expertise to client and team
  • participate in architecture design and debugging
Requirements
  • Experience in a broad range of software development modalities (backend, frontend, ops, and consulting skills)
  • Experience with at least one server-side programming language
  • Knowledge of client-side language and framework (React, TypeScript/JavaScript)
  • Experience building backend services and CI/CD pipelines
  • DevOps fundamentals (CI, automated deployment, test automation)
  • Knowledge of databases (PostgreSQL)
  • Fluent English (Finnish beneficial)
Reaktor logo
Reaktor · 16 open roles
Top locations (all time): Helsinki, Finland · 42 · Tampere, Finland · 14 · Remote - Global · 11 · +4 other locations
View company
Current open roles at Reaktor on JobCrawls
LocationActive listings
Helsinki, Finland42
Tampere, Finland14
Remote - Global11
Turku, Finland7
Lisbon1
Amsterdam, Netherlands1
Amsterdam1
Current role mix at Reaktor on JobCrawls
Role typeActive listings
Software Engineer21
Mobile Developer3
Developer3
Full Stack Developer3
Fullstack Developer3
Software Developer2
Machine Learning Engineer2
Data Engineer2
Data Architect2
AI Developer2
System Administrator2
Software Architect1
Venture Trainee1
Sales Director1
Head of Marketing1
Account Manager1
Product Designer1
Senior Technical Lead1
Human Resources Specialist1
Sales Coordinator1
Head of Communications & Investor Relations1
Business Development Lead1
Lead Developer1
Product Management Lead1
Sales Representative1
Sales & Account Manager1
Lead Software Engineer1
Platform Engineer1
Current role-level mix at Reaktor on JobCrawls
Role levelActive listings
Mid-Level31
Senior22
Manager3
Junior2
Executive2
Director1
Intern1

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