Senior Backend Engineer - TypeScript

About the role

This is a Senior Backend Engineer position focused on building scalable payment systems for commercetools' commerce platform. You'll design and operate payment solutions handling financial transactions in a multi-tenant cloud environment, working closely with product management and leading technical initiatives across the platform.

What you'll do

• Design, own and operate scalable, secure payment systems that handle financial transactions efficiently in a multi-tenant Cloud/SaaS environment
• Lead architecture reviews, make trade-off decisions for scalability, security and maintainability, and coach other engineers
• Design, implement and test in-store payment and payment device interactions including credit/debit, gift cards, digital wallets
• Lead end to end design, delivery, and reliability of payment solutions
• Define and drive platform patterns, CI/CD improvements, SLIs and SLOs, observability and testing strategy
• Work with Product Management to understand business needs and find appropriate technical solutions
• Take part in on-call rotation for production systems with worldwide distributed team

What you'll need

• Proven experience as a TypeScript backend engineer building large-scale production systems
• Solid understanding of parallel and asynchronous programming, and non-blocking I/O
• Strong grasp of distributed systems fundamentals, including consistency models, replication, and asynchronous processing
• Experience developing REST APIs and knowledge of scalable architectures
• Knowledge of document databases (MongoDB) and API interaction tools
• Fluent written and verbal English language skills for international teams
• Good understanding of Agile methodologies and sprint participation
• AI aptitude with curiosity for using AI tools effectively in work

Nice to have

• Experience with MACH principles and solutions composed in MACH environments
• Experience with industry standard API Authentication/Authorization including OAuth, OpenID Connect, SAML2
• Experience integrating major PSP providers/gift card processors such as Adyen, Stripe, PayPal Braintree, Worldpay

What they offer

• Comprehensive health benefits for you and dependents, including mental health support
• Annual learning budget with access to self-paced platforms, coaching, mentorship programs
• Family Leave Plus with additional fully paid parental leave weeks
• Equity participation program to share in company success