Senior/Staff Software Engineer

Flowspace•Costa Mesa, CA

5d•$125,000 - $215,000•Remote

About The Position

This role is a senior individual contributor with clear ownership over systems that directly impact warehouse operations, fulfillment accuracy, and customer outcomes. Senior and Staff Engineers at Flowspace are expected to operate close to real-world workflows, understanding how software decisions affect associates on the floor, support teams, and customers under time pressure. This role balances technical excellence with operational responsibility. It requires pragmatic decision-making in imperfect systems, strong cross-functional collaboration, and accountability for outcomes rather than just designs. Engineers in this role are comfortable engaging with ambiguity, supporting live operations, improving systems incrementally while they are actively in use, and using modern AI-assisted development tools responsibly to accelerate delivery without sacrificing code quality, system understanding, or ownership.

Requirements

5 or more years of professional software development experience.
Experience building and operating production systems with real-world operational impact.
Web application development experience with ReactJS or similar frameworks.
Strong understanding of computer science fundamentals, system design, and tradeoff-driven architecture.
Ability to work through ambiguity, gather feedback from non-technical stakeholders, and deliver under real constraints.
Comfort working with AI-assisted development tools as part of day-to-day engineering work, with the ability to evaluate and validate generated output.
Must work US hours.
Occasional support duties require working until 8pm Eastern/5pm Pacific.
This is a 100% remote position, so our employees must be able to successfully function in a virtual setting, including the ability to work with/manage teams across various time zones, with reasonable expectations/hours.
The employee must be able to successfully manage a variety of virtual technology and collaborative tools, to successfully communicate and manage their remote environment (i.e. Slack, Zoom, etc).
5% travel is required, including occasional visits to warehouses, team gatherings, or operational reviews, to maintain firsthand understanding of how the platform is used.

Nice To Haves

Experience with Ruby on Rails or similar backend frameworks.
Prior exposure to logistics, fulfillment, warehousing, or other operationally complex domains.
Experience supporting or building systems used by non-technical operators in high-pressure environments.

Responsibilities

Write and ship production code regularly. Own what you build, write tests, and contribute directly to core product functionality.
Collaborate with engineers, product managers, and designers to deliver solutions that meet customer and internal needs.
Build clean, maintainable software in a complex operational domain.
Support upgrades, training, and implementation as needed to ensure successful adoption.
Estimate work, complexity, and timelines with accuracy, and deliver against those estimates.
Break initiatives into clear, actionable milestones and execute effective, low-disruption rollouts.
Contribute to technical direction and performance considerations through collaboration and informed judgment.
Use AI-assisted development tools to improve development speed, problem-solving, and code quality, while maintaining full understanding and ownership of the code being shipped.
Operate as a reliable team member who is collaborative, respectful, and aligned with Flowspace culture.
Participate in support and escalation rotations, debugging and resolving urgent customer-facing issues.