Core Engineering
About Us:
At Rox, we believe in empowering people to do their best work. Our platform supercharges sellers with autonomous revenue agents to do the manual work so they can focus on what they do best: selling. Just as coding agents 10x’d engineering, revenue agents 10x customer work. We are reimagining the revenue stack by building the world’s first revenue operating system, from the application layer to the system of context. With Rox, humans are evolving to orchestrators while agents manage the end-to-end customer lifecycle. Rox powers Global 2000 leaders in banking, hardware, construction, and sovereign AI, while serving dominant AI winners like Ramp and Cognition. Underlying all of this success is an unwavering, shared belief in the mission, with an unreasonable commitment of doing whatever it takes to make it a reality. The Team
Nothing is possible without the world-class team, assembled to redefine how businesses operate. Members on our team have: Founded and exited successful companies Held the highest positions at Google, AWS, Confluent, and New RelicWon IMO and IOI gold medals Published field-defining papers We’re backed by the best, including Sequoia, General Catalyst, Google Ventures, Elad Gil, and Chris Ré.Core Principles
Taste: Craft beautiful experiences.
No matter how small, we strive to make sure every detail is right. We care deeply about every interaction, both in terms of whether it helps the seller get the job done, but also how the product makes them feel. We get a visceral feeling when something is off and stop at nothing to make sure we make it right. We never settle, continuously exploring ways to delight sellers. Obsession: Commit unreasonably.
In all aspects of our craft, we commit. We not only are immediately reactive to customers’ requests but are proactive about driving value even before they ask. We are also obsessive about always learning and honing our craft, improving ourselves and product every single day. Action: Get it done.
Talking is easy but the difference comes from the execution. We lean heavily towards making thoughtful yet fast decisions and delivering immediately. We play in a field where trust is paramount. We earn the trust and right to empower the best sellers by forging a history of over-delivering on the promise at record speed.
Your Role:
About the Core Engineering Team
Core Engineering builds the systems that make autonomous revenue agents reliable at enterprise scale. This team sits at the center of Rox’s long-term technical strategy and owns foundational infrastructure across:agent reliability and orchestrationdistributed execution systemsgraph-based retrieval infrastructurestreaming and real-time context systemsobservability for autonomous workflowslow-latency data and inference pipelines The problems here look less like traditional SaaS application engineering and more like:real-time OLAP systemsstreaming compute platformsdistributed databasessemantic retrieval systemsdeterministic execution infrastructurehigh-scale platform engineering At Rox, agents continuously:retrieve contextreason across changing statetrigger actionsupdate workflowscoordinate across systems Core Engineering builds the infrastructure that makes those loops fast, reliable, observable, and deterministic.
The Role:
We are hiring a Core Engineer to help design and operate the foundational infrastructure behind Rox’s autonomous agent platform. This role is ideal for engineers who have deep systems intuition and want to work on infrastructure problems at the frontier of AI reliability. You might be a fit if you’ve spent time building:distributed infrastructurestreaming systemssemantic search infrastructuregraph-based retrieval systemsexecution runtimesreliability infrastructurelow-latency backend platforms Or if you’ve historically been “the person” inside your company for difficult infrastructure problems. We care deeply about engineering craftsmanship, systems thinking, and people who can reason about long-term architecture under real-world scale constraints. Why This Role Exists
Enterprise AI systems are moving toward autonomous execution. The hard problem is not generating outputs. It’s building reliable systems that can reason, retrieve context, coordinate actions, and operate deterministically under real-world enterprise constraints. We believe this requires a new category of infrastructure engineering. That is the problem space this team exists to solve.
Responsibilities:
- Build infrastructure for reliable autonomous agent execution
- Design systems for deterministic, auditable agent behavior at enterprise SLAsDevelop low-latency retrieval and context systems powering AI workflows
- Build and scale graph-based infrastructure and semantic retrieval systems
- Improve observability, debugging, and reliability across distributed agent systems
- Work on real-time data ingestion and streaming architectures
- Collaborate closely with platform, AI, and product engineering teams
- Help shape the long-term architecture behind Rox’s agent runtime
- Problems You’ll Work OnReliability for long-horizon AI workflows
- Agent orchestration across distributed systems
- Deterministic execution for autonomous systems
- Streaming context ingestion and retrieval
- Knowledge graph infrastructure
- Real-time state synchronization
- Low-latency execution pipelines
- Enterprise-grade observability for agent systems
What Success Looks Like:
In your first few weeks
You understand Rox’s architecture, agent runtime, and infrastructure stack deeply enough to contribute to production systems. In your first few months
You are independently designing and improving core systems tied to agent reliability, execution, and retrieval performance. Over time
You help define the technical foundation that enables autonomous enterprise workflows to operate reliably at massive scale.
Qualifications:
- Strong background in distributed systems or platform engineering
- Experience building and operating high-scale backend infrastructure
- Strong systems fundamentals across networking, concurrency, storage, and reliability
- Experience with streaming systems, distributed databases, or real-time infrastructure
- Ability to independently design and ship complex technical systems
- Strong product and engineering judgment
- Particularly Relevant Backgrounds
We’d especially love to speak with engineers who have experience in areas like: Apache Flinkdistributed query enginesreal-time OLAP systemsgraph retrieval systemssemantic search infrastructurestreaming compute systemslarge-scale platform engineeringAI infrastructure and orchestration systems Open source contributors, infrastructure specialists, and engineers who have historically operated as technical force multipliers inside their organizations tend to thrive here. Location
This role is based onsite in San Francisco. We strongly believe that the speed and complexity of the problems we are solving benefit from in-person collaboration. We actively relocate exceptional engineers from around the world and currently have team members who have moved from Europe, Canada, Asia, and Australia to join Rox. If you want to work on deep infrastructure problems at the frontier of autonomous systems, we’d love to talk.
Benefits:
- Medical, dental, and vision, including 100% company-paid plans for you and eligible dependents
- Company-paid life & AD&D, plus short- and long-term disability 401(k) with automatic enrollment
- Unlimited PTO, plus paid sick leave, company holidays, and bereavement
- Up to 20 weeks of paid parental leave at 100% pay (birth, adoption, or foster)
- Wellness stipend: $375/quarter
- Learning stipend: up to $2,000/year
- Internet & cell phone stipend: $25/month
- Mental health support, virtual care, and care navigation
- Fertility & family-building support, plus backup care membership
- Pre-tax commuter benefits (transit & parking)SF HQ: daily catered breakfast & lunch, meal allowances, and rideshare support when commuting to the office