Senior Software Engineer, Backend – Platform & API Development

Our client is a rapidly growing, profitable technology company operating a digital marketplace that connects consumers and businesses through innovative technology solutions. The organization is continuing to expand its platform, product offerings, and engineering team to support increasing demand and is seeking a

Our client is a rapidly growing, profitable technology company operating a digital marketplace that connects consumers and businesses through innovative technology solutions. The organization is continuing to expand its platform, product offerings, and engineering team to support increasing demand and is seeking a Senior Software Engineer, Backend – Platform & API Development
.

With a strong focus on technical excellence, collaboration, and innovation, the company offers engineers the opportunity to take ownership of meaningful projects, contribute to architectural decisions, and build scalable systems that support long‑term growth.

$190k - $210k

A Senior Software Engineer, Backend – Platform & API Development will help to design, develop, and scale its core platform and external API infrastructure. This individual will play a critical role in building reliable backend systems, developing third‑party integrations, and supporting complex transactional workflows involving bookings, payments, inventory, and reservations. The ideal candidate has strong computer science fundamentals, experience developing scalable production systems, and the ability to independently own technical projects from initial design through deployment.

This is a hands‑on individual contributor opportunity offering significant technical ownership, collaboration with experienced engineering leadership, and potential advancement into a Staff Engineer position.

• Design, develop, and maintain scalable backend systems supporting a high-growth digital platform.
• Build and maintain external-facing APIs and integrations with third-party platforms.
• Develop reliable transactional workflows involving reservations, bookings, inventory, and payments.
• Take ownership of backend architecture, API design, and technical implementation decisions.
• Design relational database models with an emphasis on consistency, scalability, and data integrity.
• Collaborate with senior engineers on foundational architecture and long‑term technical strategy.
• Develop reusable engineering patterns to support future platform integrations.
• Partner with product managers and cross‑functional stakeholders to translate business requirements into technical solutions.
• Write, test, deploy, and maintain high-quality production code.
• Identify opportunities to improve system performance, reliability, and engineering efficiency.

• 6+ years of professional software engineering experience, primarily focused on backend or platform development.
• Proven experience independently designing, developing, and deploying complex backend systems.
• Strong experience building external-facing APIs and integrating with third-party services.
• Experience developing transactional systems involving payments, orders, bookings, reservations, inventory, or similar workflows.
• Strong understanding of relational databases, data modeling, data consistency, and backend architecture.
• Solid computer science fundamentals and strong technical problem‑solving abilities.
• Experience working within an established engineering organization with strong technical standards and best practices.
• Demonstrated ability to take ownership of technical projects and make sound…