Senior Backend Software Engineer – Payments

Role Overview

• Research and execute strategic projects along with your team.
• Your deliverables influence B2B and B2C checkout conversion around the globe, by both creating new payment mechanisms and improving/maintaining existing ones.
• Implement and deliver solutions working with a cross-functional team.
• Develop leadership skills, working closely with mid-level and junior engineers and help them speed up their learning curve.
• Participate in the development of some of the most critical and challenging services in our ecosystem, seeking to build long-term and sustainable solutions.
• Design, develop, test, deploy, maintain, and improve services focusing on performance, scalability, and resilience.
• Build integration with 3rd party API and tools.
• Work in a collaborative and agile environment that prioritizes people over process.
• Work with cutting-edge technologies and edge cases on a global scale.

Requirements

• Commitment to delivering high-quality, maintainable solutions and continuously improving processes
• Proven experience designing and implementing RESTful APIs using Kotlin/Java with Spring Framework.
• Strong knowledge of asynchronous processing, message queuing, and retry/backoff strategies for reliable system communication
• Solid software architecture expertise, including:
• Event-driven architectures
• Domain-Driven Design (DDD)
• Hexagonal / Ports & Adapters architecture
• Strong software quality orientation with proficiency in automated testing (unit, integration and e2e tests)
• Hands-on experience with AWS Cloud Services and Cloud-Native environments (Kubernetes, container orchestration, service discovery).
• Expertise in designing and implementing observability and traceability strategies, including distributed tracing, centralized logging, and metrics instrumentation.
• Proven track record with microservices architectures, high-throughput distributed systems, and resilience engineering techniques (circuit breakers, retries, fallback mechanisms).
• Demonstrated ownership of technical decisions, architectural trade-offs, and phased delivery strategies throughout career.
• Bachelor’s degree in Computer Science or equivalent professional experience.

Tech Stack

• AWS
• Cloud
• Distributed Systems
• Java
• Kotlin
• Kubernetes
• Microservices
• Spring

Benefits

• WELLHUB: Free Gold+ membership with access to onsite gyms and studios, digital fitness programs, and online wellness resources for meditation, nutrition, mental wellbeing support, and more! Add up to three family members to your plan, ensuring access to wellness for those who matter most to you.
• WELLZ: A complete emotional wellbeing program with a unique approach. It offers personalized journeys that combine individual therapy sessions (52 per year) and on-demand content.
• HEALTHCARE: Health, dental, and life insurance.
• FLEXIBLE WORK: As a Flexible First company, we offer hybrid and remote options to give you the freedom to work in a way that suits you. The model for this specific role can be discussed with your recruiter and hiring manager. When you join, use our home office reimbursement to set up your home office.
• PAID TIME OFF: It’s important to take time away from work to recharge.Employees receive vacations after 6 months and additional 3 days off per year + 1 day off for each year of tenure (up to 5 additional days) + an extra holiday for your birthday!
• PAID PARENTAL LEAVE: Welcoming a new child is one of the most special moments in your life. Take the time to be present and enjoy your growing family. We offer 100% paid parental leave to all new parents. Parents giving birth are eligible for an extended leave and a ramp-back period to return part-time while they get settled.
• CAREER GROWTH: Access world-class platforms, participate in interactive sessions, build your personalized development roadmap, and explore internal opportunities. We focus on continuous learning and feedback to support your journey toward personal and professional success.
• CULTURE: You’ll join a team of passionate people who come together to break boundaries, support each other, and create a meaningful impact in workplace wellness. We win together, building trust through open communication and a culture where every perspective matters.