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Back End Developer at djr - JobAssist
›››Back End Developer
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Back End Developer

djr

RemoteFull timeMid levelPosted today
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About the role

About This Role

This freelance role supports a growing European fintech by building out their permanent team, focusing on a payments platform used by thousands of businesses. The ideal candidate will take ownership from design through to production, with a deep understanding of transaction processing.

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Yes. This role at djr was screened before publishing – we confirmed the employer before listing it.

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Responsibilities

  • Build reliable payment processing services
  • Develop APIs and integrations with banks and software partners
  • Improve PostgreSQL queries, data models and processing performance
  • Investigate production issues and implement lasting fixes

Requirements

  • Strong commercial Java and Spring experience
  • Solid SQL/PostgreSQL knowledge, including transactions and indexing
  • Experience with concurrency, retries and preventing duplicate processing
  • Confidence owning production services and explaining technical trade-offs
  • Fluent English

Nice to have:

  • Go and payments/fintech experience

Important Details

  • Work format: fully remote, based within one hour of Central European time
  • Schedule: no developer on-call requirement

Application Process

  • Send your CV and earliest availability, or send a message for a chat

Job details

Workplace

Remote

Employment

Full time

Seniority

Mid level

Headquarters

European Economic Area

Posted

Posted today

About company

djr logodjr

Headquarters

European Economic Area

Open jobs

2

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