Senior/Principal Software Engineer

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 Principal Software Engineer with expert-level Perl knowledge to join our highly specialized engineering team shaping a critical financial transaction platform. In this strategic, visible role, you'll lead the design, development, and scaling of a high-performance payment orchestration system that handles large volumes of transactions and requires exceptional reliability. You'll drive technical decisions, collaborate across teams, and ensure end-to-end delivery of mission-critical features.

What's in it for you:

• Own architecture and technical decisions for a high-volume payment platform, supporting a strategic financial tech initiative
• Work on mission-critical systems that impact the reliability and performance of financial transactions
• Mentor team members on architecture and design, driving best practices and team growth

Is that you?

• 5-7+ years of software development experience with deep Perl expertise, including frameworks, libraries, and modules used in production
• Experience building and maintaining mission-critical, high-throughput backend systems
• Experience with financial transaction/payment systems (authorization, settlement, reconciliation, fraud prevention)
• Hands-on experience integrating Perl services with C-based core systems and external APIs
• Exposure to legacy Perl systems and modernization projects
• Strong understanding of system integration, abstraction layers, and APIs
• Experience delivering high-performance, reliable backend components
• End-to-end delivery ownership (automated tests, quality, resilience, performance)
• Familiarity with security and compliance standards (PCI-DSS, GDPR, internal policies)
• Solid knowledge of CI/CD pipelines, code reviews, and modern engineering practices
• Strong collaboration skills and contribution to architecture and design discussions
• Excellent communication with cross-functional teams and stakeholders
• Upper-Intermediate+ English level

Desirable:

• Background in Payments, FinTech, or Financial Services
• Experience with Java-based testing frameworks (JUnit/TestNG)
• Knowledge of DevOps principles, observability, logging, and resilience patterns

Key responsibilities and your contribution

In this role, you'll lead the design, development, and delivery of critical backend systems, driving architecture decisions and collaborating with cross-functional teams to ensure high-performance, reliable software.

• Build and maintain high-performance, high-availability Perl components integrated with C-based systems
• Develop mapping, customization, and business logic layers to connect with client, gateway, and host systems
• Own feature delivery end-to-end, including automated testing and ensuring code quality
• Ensure system reliability, resilience, and performance stability
• Contribute to CI/CD pipelines, deployments, and releases
• Implement observability and monitoring for low-latency, self-recovering backend systems
• Lead code reviews, architecture discussions, and knowledge-sharing sessions
• Collaborate with cross-functional teams to deliver features from specification to production
• Mentor team members in best engineering practices and technical problem-solving

What's working at Dev.Pro like?

30 paid days off each year — use them for vacation, holidays, or personal time
5 paid sick days, up to 60 days of medical leave, and 6 paid days off for major family events like weddings, funerals, or the birth of a child
Fully covered health insurance, plus a wellness bonus for things like gym memberships and sports gear
Grow your career with English classes, online courses, conferences, and the chance to explore new roles
Support for pregnancy, maternity leave, and military service
Fun virtual events and team-building activities to stay connected
Full support for your tech, workspace setup, and accounting needs — we'll make sure you're equipped to do your best work

Our next steps:

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

Interested? Find out more:

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