Senior Principal Software Engineer (Perl)

Job Description

🟢 At Dev.Pro, we 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. 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