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Back-end Developer – MERCHANT PORTAL

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 501-1,000Since 1999H1B No SponsorCompany SiteLinkedIn

Location

Portugal

Posted

130 days ago

Salary

0

Seniority

Senior

Bachelor Degree5 yrs expPortugueseEnglishAndroid

Job Description

Back-end Developer – MERCHANT PORTAL

Wondercom

• Join the team responsible for the NNMerchant Portal, a platform connecting banking systems, Android payment terminals (POS) and secure, scalable back-end infrastructures • Design and implement back-end components of the Merchant Portal • Develop RESTful APIs and microservices to integrate with external systems (banks, payment gateways, terminals) • Ensure software security and compliance with PCI DSS standards and Secure Software Lifecycle (SLC) practices • Work with product, design and infrastructure teams to ensure a smooth and modern user experience • Implement authentication, authorization and profile management mechanisms (merchants, administrators, auditors) • Create dashboards and reports for transactions, KPIs and real-time analytics • Collaborate on CI/CD processes, automated testing and cloud-native deployments • Ensure interoperability with third-party systems (Visa, Mastercard and international processors)

Job Requirements

  • Bachelor's or Master's degree in Computer Engineering, Information Systems or a related field
  • Additional training in Fintech, Blockchain, or Application Security (a plus)
  • Minimum of 5 years of software development experience
  • Strong results orientation and focus on code quality
  • Analytical skills and the ability to solve complex problems
  • Rigorous technical documentation practices and good version control habits
  • Ability to work in multidisciplinary teams (engineering, product, security, banking partners)
  • Fluent in Portuguese and English

Benefits

  • Join a flagship project in the financial sector with high technological impact
  • Personalized mentoring and a focus on your professional development
  • Wonder4You: exclusive benefits program for Wondercom employees

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