Senior/Principal Software Engineer (Perl) - OP02075

🟢 At Dev.Pro, a US-based company, we're looking for contractors to work on projects that impact millions of people around the world. But we know it’s the people behind the tech who make it all happen, and we're looking for individuals who share our values and passion for making a difference.
We truly value what makes each person unique and are building a workplace that’s inclusive, friendly, and supportive.

We invite a high-caliber Technical Team Lead who thrives on technical challenges and knows how to communicate effectively with CTO-level stakeholders to join our team. This hybrid role is split 50/50 between onsite and remote work. As the onsite anchor for a critical payment harmonization platform, you’ll oversee and mentor a high-performing team bridging complex C/Perl legacy systems with modern enterprise standards. Your focus will be on collaborating with technical leadership, ensuring architectural integrity, and delivering high-throughput, reliable payment solutions fully aligned with client needs.

🟩 What's in it for you:

• Work on a mission-critical, real-time payment platform powering high-volume, multi-processor transactions
• Modernize a legacy C/Perl system into a robust, enterprise-standard architecture
• Collaborate with senior leadership to drive decisions that shape the platform and maximize client success

✅ Is that you?

• 6+ years working with distributed payment systems and high-throughput processing
• 2+ years in the payments domain, with a solid understanding of the payment lifecycle (authorization, capture, settlement)
• Experience with payment orchestration, gateway integrations, tokenization, smart routing, retries, and multi-processor environments
• Experience with authorization and settlement pipelines
• Knowledge of card networks (Visa, Mastercard, Amex) and ISO 8583/SPDH messaging
• Understanding of PCI DSS compliance
• Experience with PostgreSQL and Unix-based systems, and familiarity with networking fundamentals
• Effective collaboration with senior engineers, architects, and technical leads in Agile teams
• Strong communication skills and ability to turn technical challenges into clear business plans
• Proactive, solution-oriented, and adaptable mindset, with openness to new ideas and constructive feedback
• Upper-Intermediate English level and native-level Croatian proficiency

Desirable:

• Experience with low-level C cores and complex Perl data-transformation layers
• Experience with С and Perl or willingness to learn
• Experience with Google Cloud Platform (GCP)

🧩Key responsibilities and your contribution

In this role, you’ll be the face of the Dev.Pro partnership, identifying project development areas and ensuring the team delivers tangible, high-efficiency results that exceed client expectations.

• Lead the onsite payment team in its daily Agile execution
• Coordinate with senior engineers, architects, and CTO-level stakeholders to align team output with strategic goals
• Oversee payment platform delivery, including orchestration and gateway integrations
• Manage tokenization, smart routing, retries, and multi-processor operations
• Manage authorization/settlement pipelines
• Bridge complex legacy systems (C/Perl) with modern enterprise standards
• Troubleshoot issues, perform hands-on coding, and optimize system performance as needed
• Translate technical challenges into business roadmaps, communicating risks to senior leadership
• Ensure compliance with PCI DSS, card networks, and ISO 8583/SPDH standards
• Mentor team members, provide constructive feedback, and foster a proactive learning culture

🎾 What's working at Dev.Pro like?

✔️ 30 paid days off per year — take them whenever you want for vacation, holidays, or personal time
✔️ 5 paid sick days, up to 60 days of medical leave, and 6 paid days off per year for major family events like weddings, funerals, or the birth of a child
✔️ Partially covered health insurance after the probation, plus a wellness bonus for gym memberships, sports nutrition, and similar needs after 6 months
✔️ Grow your skills with English lessons, online training, conferences, and the option to explore new career paths

Our next steps:

✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Internal interview — ✅ Client interview — ✅ Offer

Interested? Find out more:

📋How we work

💻 LinkedIn Page

📈 Our website

💻IG Page