Brex · 21 hours ago
Senior Engineer, AI — Brex Assistant
San Francisco, CA
Full-time
Hybrid
Senior Level, Lead/Staff
$192K/yr - $240K/yrBrex is an AI-powered spend platform that helps companies manage their finances efficiently. The Senior Engineer for AI will lead the development of the Brex Assistant, focusing on creating a reliable conversational product that enhances user experience and integrates seamlessly with Brex’s core workflows.
BankingCredit CardsFinancial ServicesFinTech
Responsibilities
Own the end-to-end conversational experience for the Brex Assistant, including both outbound system-initiated interactions and inbound mobile chat
Act as the technical and product bar-setter for the team, making and executing hard sequencing decisions for assistant capabilities (e.g., memory, merchant data, preferences)
Write high-quality, production-grade code while shaping architecture and interfaces for agentic workflows, partnering closely with Spend/Expense teams to influence core Brex workflows
Set and enforce a high bar for reliability, correctness, and UX in a non-deterministic system, collaborating with infrastructure and security teams for deep integration
Establish team norms and best practices for building agentic products, focusing on overcommunication, validation, and quality control
Qualification
Required
Proven experience building and owning user-facing software products in complex, real-world domains
Established experience as a Staff / Senior Staff engineer or hands-on Tech Lead; prior people management experience is a strong plus
Strong product judgment: a track record of making hard tradeoffs, sticking to them, and delivering outcomes under real constraints
Experience building systems that must be reliable despite messy inputs — whether from users, non-deterministic systems, or both
Ability to independently own UX and roadmap decisions, build simple and robust user-centric software, and mentor junior engineers through strong product and technical guidance
Preferred
Experience working on consumer or prosumer products in regulated or high-stakes domains (finance, healthcare, travel, etc.)
Direct experience with conversational UX, agents, or other non-deterministic systems in production
Personal empathy for spend-heavy workflows (frequent travel, recruiting, managing expenses on behalf of a company)
Benefits
Equity and other forms of compensation may be provided as part of a total compensation package.
Up to four weeks per year of fully remote work
Company
Brex
Brex is a financial service and technology company that provides business credit cards and cash management accounts.
Founded in 2017
1001-5000 employees
H1B Sponsorship
Brex has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (32)
2024 (50)
2023 (53)
2022 (65)
2021 (70)
2020 (37)
Funding
Current Stage
Late StageTotal Funding
$1.7BKey Investors
CitiTiger Global ManagementDST Global
2026-01-22Acquired
2025-01-13Debt Financing· $235M
2023-07-25Series Unknown
Leadership Team
Pedro Franceschi
Founder and CEO
James Reggio
Chief Technology Officer
Recent News
2026-01-25
2026-01-25
2026-01-25
Company data provided by crunchbase