Senior Developer

We are looking for a Senior Developer to our client. This role is frontend-focused, but strong fullstack capabilities are highly valued. Our client is seeking a senior-level professional with ability to lead and mentor a junior team.Required skills:TypeScriptReactNode.jsGraphQLFluent in Finnish and EnglishNice-to-have:Experience with AWS services and modern cloud-based development environmentsLocation: Helsinki, Finland (hybrid, 2-3 days on-site)Start: As soon as possible, no later than 17.4.2026End: Until the end of June, with an expected extension likely through the end of 2026Workload: 100% Language: Finnish and EnglishIf you have a qualified expert available on short notice, we would be happy to review their profile.PayExpress:We now offer a fast and smooth payment solution, so you don't have to wait through long payment periods. With us, you will receive your payment within 3-5 days after your timesheet has been approved. This benefit is included as standard in almost all our contracts with no extra work on your part. Read more on below link.https://knowledge.eworkgroup.com/payexpress-get-paid-within-days-not-mon