Top Tech Jobs & Startup Jobs

Build scalable data foundations and personalization systems for AI agents. Responsibilities include real-time event infrastructure, streaming and batch ETL, Iceberg-based lakehouses, OLAP querying, data orchestration, governance, analytics products, long-term agent memory, customer data platform primitives, and ML-powered personalization. The role may emphasize platform or full-stack product engineering and requires strong distributed systems, data modeling, product development, and software engineering expertise.

Leads technical accounting policy documentation, advises on investments, acquisitions, and partnerships, reviews monthly financials, and coordinates external audits. Oversees financial statement presentation and disclosure compliance while driving IPO preparedness. Leads finance transformation initiatives by improving accounting technology, automating processes, and applying AI to scale the function. The role requires CPA certification, Big Four and high-growth enterprise software experience, US GAAP expertise, and strong process-building skills.

Provides strategic and administrative support to the co-founder, including calendar, travel, inbox, correspondence, meeting preparation, action-item follow-up, stakeholder communication, and confidential information management. The role also establishes and improves administrative systems while working primarily in person at the San Francisco office and traveling as needed.

Own Sierra’s public-sector enterprise sales business across federal, state, and local government accounts. Build pipeline, manage strategic relationships, lead complex six- and seven-figure sales cycles, develop capture and acquisition strategies, coordinate bids and proposals, and establish partner and teaming ecosystems. The role also helps build repeatable public-sector go-to-market processes, forecasts, contract-vehicle strategies, and sales playbooks while engaging agency executives, procurement officials, technical teams, and systems integrators.

Rotational APX participants will build and ship AI agents for enterprise customers, contribute code and product designs to Sierra’s platform, learn scalable agent development, and collaborate with engineering, product, and operations teams. The program includes rotations across Agent Development and Core Product teams, internal reviews, and product discussions. Candidates should be pursuing a bachelor’s or master’s degree, have software engineering or product management experience, demonstrate expertise in modern programming technologies, and show interest in AI applications.

Build and scale Sierra’s internal IT infrastructure as the first internal IT team hire. Responsibilities include migrating identity management to Okta, implementing device compliance, identity analytics, DLP, automated onboarding and offboarding, compliance integrations, SaaS lifecycle management, and internal tools using APIs and automation. The role requires operating independently in a fast-paced enterprise environment while improving security, reliability, documentation, and operational efficiency.

Provides hands-on IT support for the New York office, including macOS troubleshooting, global helpdesk queue management, hardware lifecycle, conference room AV, office networking, onboarding, SaaS administration, vendor coordination, and IT logistics. The role also supports office build-outs and moves, executes endpoint and workplace technology projects, improves processes, and documents solutions. Requires strong troubleshooting, organization, communication, and experience supporting technical users.

Lead and develop a regional enterprise sales team, own sales performance and forecast accuracy, and support complex $1M+ deals through negotiation and close. Hire, coach, and develop account executives; inspect pipeline quality; partner with Revenue Operations; and build a culture of accountability and collaboration. The role also contributes to go-to-market strategy and requires extensive enterprise sales and people leadership experience.

Own the enterprise technical pre-sales process, including customer discovery, solution scoping, business-value articulation, architecture reviews, platform demonstrations, prototypes, and technical proposals. Partner with Sales, Product, and Agent Engineering teams to improve Sierra’s AI solutions. Build executive and technical relationships, lead customer sales cycles, translate business problems into solutions, and communicate effectively with technical and non-technical audiences while using AI tools responsibly.

Build systems to analyze, visualize, and monitor conversational agent performance, enable A/B testing for agents, and create an AI-powered exploratory interface for conversational data (clustering and search). Deliver full-stack production features supporting developer workflows and proactive defect detection.