Senior Fullstack Engineer (Payments) in United States at Jobgether

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Fullstack Engineer (Payments) based in United States.

This is a high-impact engineering role focused on building and scaling the core payment and purchasing systems that power a fast-growing trading ecosystem. You will work across the full stack, contributing to both backend distributed systems and modern frontend applications, with a strong emphasis on reliability, scalability, and performance. The role sits at the heart of a cloud-native architecture where payments, purchasing flows, and trader experience converge into a single high-throughput platform. You will help define engineering standards and system design patterns that shape how teams build and ship software across the organization. In addition to feature development, you will play a key role in improving system observability, operational maturity, and deployment safety. This position is ideal for a senior engineer who enjoys solving complex distributed systems problems while remaining close to product impact and end-user experience.

• Design, build, and operate scalable cloud-native fullstack applications supporting payments and purchasing flows with a strong focus on reliability and performance.
• Develop and maintain backend services and APIs using TypeScript, alongside modern frontend interfaces using React-based frameworks.
• Contribute to the architecture of distributed systems, including event-driven workflows, messaging systems, and consistency handling across services.
• Implement strong engineering practices around testing, observability, monitoring, and safe deployment strategies across the stack.
• Collaborate with product and engineering teams to deliver high-quality features while improving system stability and scalability.
• Identify performance bottlenecks and production issues, proactively driving improvements in system reliability and efficiency.
• Help define coding standards, engineering best practices, and scalable patterns used across multiple teams.

• 5+ years of experience building and operating production-grade systems with user-facing APIs in high-scale environments.
• Strong fullstack expertise with TypeScript, including backend APIs (REST and/or GraphQL) and frontend development using React or similar frameworks.
• Deep understanding of distributed systems concepts such as event-driven architecture, message queues, eventual consistency, and concurrency challenges.
• Solid database experience with PostgreSQL or SQL Server, including schema design, indexing, migrations, and query optimization.
• Strong production mindset with experience in observability tools such as logging, metrics, tracing, and on-call support.
• Ability to communicate complex technical ideas clearly to both technical and non-technical stakeholders.
• Strong problem-solving skills with a bias toward ownership, action, and end-to-end delivery.

• Competitive annual base salary ranging from $157,000 to $193,000
• Performance-based bonus eligibility
• Health, dental, and vision insurance for employees
• 401(k) retirement plan with company matching
• Flexible hybrid/remote-friendly work environment
• Generous paid time off, including company-paid holidays and front-loaded vacation days
• Family leave benefits and parental support
• Wellness, food, and grocery stipends
• Encouragement and bonus incentives for taking extended time off
• Collaborative engineering culture with strong communication practices and modern tooling