Senior Software Developer

Marfle; Helsinki; Hybrid; EUR 70,000 - 110,000; Full time

Job summary

Marfle is seeking a senior developer to help build our Fleet Management platform. You will work on data collection, processing, analytics, and visualization, including AI-powered features to help fleet managers make faster, smarter decisions.

You'll own features end-to-end, from design to production monitoring. The role is full-time with 2 days per week onsite at our Helsinki office, based in Helsinki (Kallio).

Qualifications

• Hands-on experience with Node.js, TypeScript, React, SQL/PostgreSQL, Go, Kubernetes, GCP, Linux, GraphQL, Kafka.

Responsibilities

• Develop new features across the full stack of the fleet management platform.
• Build AI-powered features that turn data into actionable insights.
• Handle data processing and analytics at scale across multiple sources.
• Own system monitoring and maintenance, ensuring reliability in production.

Skills

Node.js

TypeScript

React

SQL/PostgreSQL

Go

Kubernetes

GCP

Linux

GraphQL

Kafka

Job description

We're looking for a senior developer with strong software experience to join the team building our Fleet Management platform. The scope is wide: collecting data from many different sources, processing and analyzing it, turning it into clear visualizations, and building the functionality on top of it - including AI-powered features that help fleet managers make faster, smarter decisions.

It's also a chance to work on something that matters beyond the product itself: every efficiency gain we help fleets achieve - less fuel burned, fewer emissions, safer operations - is a step toward a more sustainable maritime industry. More efficient marine operations, built by this team, add up to a better, more sustainable world.

What you'll work on

• New features across the full stack of our fleet management platform - from data collection pipelines to the visualizations and tools fleet managers use every day
• AI-powered features that turn raw vessel and engine data into actionable insight
• Data processing and analytics at scale - ingesting, processing, and analyzing data from many different sources
• System monitoring and maintenance - the team owns what it builds end-to-end, including keeping it running in production

How we work

Our team has strong ownership of the product and makes decisions autonomously - we don't wait for permission to do the right thing. Taking ownership is something we genuinely appreciate. Maintaining and monitoring what we build is part of the job, not someone else's problem.

We offer a full-time role, with 2 days a week onsite at our Helsinki office.

What we're looking for

• Hands-on experience with most of our tech stack (Node.js, TypeScript, React, SQL/PostgreSQL, Go, Kubernetes, GCP, Linux, GraphQL, Kafka) and the ability to pick up the rest quickly
• Comfortable owning a feature or system end-to-end - from design through to production monitoring
• Based in, or willing to work from, Helsinki (Kallio) (2 days/week onsite)