The role is about:
The Gateway Related Projects team is committed to designing, developing, and implementing payment solutions that guarantee stable and consistent payment processing. Our goal is to create successful products and establish a reputation as a dependable partner for our clients.
In this role, you will work in a fast-paced environment where system performance, scalability, and 99.9% reliability are critical to our core transaction flow.
What you will do:
- Dual-Track Engineering: Support and extend the existing Perl-based payment gateway while simultaneously designing and building high-performance microservices in Python.
- System Modernization: Architect and implement scalable, distributed Python services to replace legacy components, ensuring reliability under high-load production environments.
- High-Stakes Integrations: Integrate and manage complex third-party APIs and external payment services, ensuring seamless transaction flows and robust error handling.
- Technical Leadership: Lead code reviews, drive engineering best practices, and identify system bottlenecks to continuously improve performance and scalability.
- Architecture & Deployment: Collaborate with DevOps to improve CI/CD pipelines (GitLab) and architect solutions using AWS services (Lambda, ECS, etc.).
- Product-Focused Delivery: Go beyond the "how" of the code—bring a product mindset to understand the business logic, user impact, and the "why" behind every feature you build.
- Production Ownership: Troubleshoot and resolve complex production issues in distributed systems, maintaining a "zero-downtime" mentality for our merchants.
The perks of being a payabl.er:
- Grow with Us: Annual Learning Budget for professional development (eligible after probation)—because your growth is our growth.
- Celebrate Together: We bring colleagues from all offices together for unforgettable company celebrations.
- Global Collaboration & Events: Opportunities to participate in international company events and initiatives, connecting with colleagues from all regions and contributing to a truly global community.
What we need:
- Python Mastery: 5+ years of backend engineering experience with deep Python expertise (FastAPI and AsyncIO preferred).
- Polyglot Mindset (Perl): Experience with Perl is a major plus, but a genuine eagerness to learn and work within Perl production code is mandatory. We value engineers who can bridge the gap between legacy and modern systems.
- Distributed Systems Expertise: Proven experience building and scaling microservices architectures and high-throughput systems (e.g., payments, trading, or real-time processing).
- API & Reliability Guru: Deep understanding of integrating third-party APIs, specifically managing webhooks, callbacks, idempotency, and retry policies.
- Cloud & Containers: Strong experience with Docker/Containerization and a solid grasp of AWS cloud infrastructure (Lambda, SQS/SNS, and cloud networking).
- Engineering over "AI Vibe Coding": We value deep engineering logic over blind AI-generated snippets. You should be an advocate for clean, intentional code who can explain the reasoning behind every line you ship.
- High-Load Architecture: Familiarity with event-driven architecture and messaging systems (Kafka, RabbitMQ, etc.).
- Ownership & Mentorship: You have a track record of owning features from design to production and enjoy supporting/mentoring other engineers in the team.
- English Proficiency: Strong English communication skills—both written and verbal—to collaborate effectively across our remote-first, multi-functional teams.
