Senior/Principal Software Engineer (Perl) - OP02075

We are hiring in Croatia!
🟢 At Dev.Pro, a US-based outsourced software development company, we're looking for contractors to join our global team of IT professionals helping tech companies scale their business through software engineering expertise. Operating as a remote-first company, our experts work across 55+ countries on five continents, giving us the flexibility and skillset to deliver high-quality engineering for projects of any size or complexity.
We invite a Senior Software Engineer/Team Lead to join a long-term strategic project for a global payment technology company. You'll work on a mission-critical harmonization platform that connects diverse payment devices, merchant systems, and authorization networks through a unified transaction processing layer. In this role, you’ll combine hands-on engineering with technical leadership and work closely with client engineering stakeholders to support technical alignment and delivery, including regular on-site visits to Zagreb to represent technical expertise and strengthen client collaboration.
🟩 What's in it for you:

- Work on a mission-critical payment platform supporting transaction processing across multiple systems

- Take ownership of end-to-end delivery in a fast-paced, collaborative environment

- Act as a technical point of contact for client engineering discussions and alignment
✅ Is that you?

- 5+ years of hands-on software engineering experience

- Strong programming experience with Java

- Experience building and maintaining high-performance backend systems

- Solid understanding of backend architecture, APIs, integrations, and abstraction layers

- Experience with PostgreSQL, Git, CI/CD pipelines, and automated testing

- Strong background in card payment processing or banking domains

- Experience working in Agile environments with modern engineering practices

- Experience in a technical leadership or cross-functional team lead role

- Strong ownership mindset and ability to drive end-to-end delivery

- Strong communication skills and maturity in client and stakeholder collaboration

- High level of self-organization and reliability

- Solution-oriented mindset with ability to prioritize, follow up, and escalate when needed

- Upper-Intermediate+ English level and Croatian language proficiency

- Residence in Croatia or nearby countries and ability to travel periodically to Zagreb for on-site technical collaboration
Desirable:

- Experience with Perl and willingness to work with existing Perl-based integration logic

- Experience with C

- Experience with .NET

- Experience in client-facing or on-site collaboration environments
🧩Key responsibilities and your contribution
In this role, you'll work on a mission-critical payment processing platform that integrates and processes transactions across diverse payment devices, merchant systems, and authorization networks.

- Develop and maintain backend components for a payment processing platform

- Work with C and Java-based systems supporting core processing logic and integrations

- Collaborate with engineers, QA, BAs, and client stakeholders in a cross-functional Agile team

- Own delivery from design through implementation, testing, and release

- Participate in unit testing and CI/CD processes

- Participate in technical design discussions and code reviews

- Work with existing Perl-based components when needed

- Provide technical guidance, mentorship, and coordination within the team

- Identify risks, dependencies, and delivery blockers, and help resolve them

- Contribute to improvements in engineering practices and development processes

- Support alignment between technical solutions and client expectations

- Help build trust and effective collaboration with client engineering stakeholders
Our next steps:
✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Internal interview — ✅ Client interview — ✅ Offer
Interested? Find out more:
📋How we hire
💻 LinkedIn Page
📈 Our website
💻IG Page
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