01.12.2025

Senior full-stack data developer

Data migration, GraphQL

A senior full-stack data developer is required to ensure the success of a strategic migration project!

Start

ASAP

Duration

3 mo + extenstion

Location

Helsinki / hybrid, remote

Allocation

100%

Our growth company that develops transformative SaaS services to European market is looking for a senior full-stack data developer to act as a lead developer in a strategic project where the customer's data will be migrated to the SaaS platform. The project will include the migration of different data elements (customer, payroll, invoicing, transactions...) from the customer's database to the SaaS platform,  and the integration of the SaaS platform to the customer's invoicing system and other external systems via REST API's. 

In the assignment you will work as a part of the senior developer team. Your key area of responsibility covers the extension of the data model used by the SaaS platform, design and implementation of the data migration pipelines and the migration logic, testing and validation of the migration and design and development of new API's to share the migrated  data from SaaS to external systems.

To succeed in the assignment you have:
  • Solid experience in data migration projects, in a lead developer role
  • Experience in translating business requirements to development tasks
  • Deep expertise in SQL, experience with PostgrSQL, Sequalize ORM a big plus
  • Familiarity with GraphQL
  • Project experience with Javascript/NodeJS
  • Familiarity with development in AWS serverless / Lambda architecure
  • Experience with Github Actions, CloudFormation
  • Good team working skills

This is an urgent request, please apply ASAP!

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Emilia Grön

Talent Agent

+358 45 1210114

emilia.gron@rootsof.ai