Software Engineer - Integrations (Java)

Location: Hybrid role based in Madrid, Spain, with access to a central Madrid office.

Salary: €40,000–€52,000 per year.

Company

hirify.global develops mailing and shipping software products that help businesses process and deliver shipments globally, including ShipStation, Stamps.com, Metapack, GlobalPost, and Packlink.

What you will do

• Design, develop, test, deploy, maintain, and support enterprise integrations for the ShipStation Global ecosystem.
• Build API-led connectivity solutions using System, Process, and Experience APIs, including REST APIs, SOAP Web Services, EDI, XML, JSON, flat files, and database technologies.
• Implement event-driven and asynchronous integration patterns with messaging technologies and maintain DataWeave transformations for data mapping and orchestration.
• Collaborate with architects, technical leads, business stakeholders, developers, operations, infrastructure, and security teams on requirements, technical designs, standards, and secure implementations.
• Troubleshoot production integration issues, perform root cause analysis, and monitor and optimize integration performance, reliability, and scalability.
• Support CI/CD pipelines and automated deployments, conduct peer code reviews, and maintain API specifications, technical documentation, and operational runbooks.

Requirements

• 3+ years of software development experience and 2+ years of experience developing integrations.
• Experience building RESTful APIs and web services, including API design and API lifecycle management.
• Experience implementing integrations with XML, JSON, XSD, and DataWeave.
• Experience with relational databases and SQL, cloud application integrations, and Git-based source control systems.
• Experience supporting CI/CD pipelines and automated deployments.
• Experience troubleshooting complex distributed systems, with strong analytical and troubleshooting abilities.
• Excellent verbal and written communication skills in both Spanish and English.
• Ability to work effectively with business and technical stakeholders, manage multiple priorities in a fast-paced environment, and apply strong organizational, time-management, critical-thinking, and problem-solving skills.
• Commitment to continuous learning and technical excellence.

Nice to have

• MuleSoft Developer Certification (Mule 4) or MuleSoft Integration Architect certification.
• Experience with AWS, S3, SQS, or hybrid cloud environments.
• Experience with EDI transactions, B2B integrations, Salesforce, ERP, CRM, TMS, or transportation and logistics systems.
• Experience with monitoring tools such as Datadog, Splunk, or similar platforms.
• Experience supporting enterprise-scale integration platforms.

Culture & Benefits

• Hybrid work with a central Madrid office, flexible work-life balance, and a global multicultural team representing 20+ nationalities.
• €2,000 per year for training, free internal and external learning resources, and weekly language classes.
• Private Cigna health insurance for employees, 50% family coverage, therapy vouchers, wellness programs, and fitness support of up to €55 per month.
• 26 days of annual holiday, including a birthday day off, Christmas Eve, and New Year's Eve, plus paid time for personal and family medical appointments.
• Annual salary review, equipment choice between Mac and Windows, volunteer day, team events, and Packlink Pro shipment discounts.
• Inclusive, casual workplace with free office snacks and drinks.