Top Tech Jobs & Startup Jobs in NYC, NY

Monitor, investigate, and respond to global security incidents; lead incident response as an incident commander; develop security alerts, playbooks, automated actions, and escalation workflows; conduct threat hunting and threat intelligence research; improve detection, containment, and post-incident processes; collaborate with stakeholders; and participate in an on-call rotation.

Leads architecture and development of Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, selecting technologies, developing analytics and infrastructure, solving complex problems, guiding product direction, mentoring engineers, and improving scalability and sustainability. The role collaborates across engineering, product, design, QA, Mozilla, and open-source communities in a fully remote environment.

Lead architecture and technical direction for Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, making technology decisions, developing analytics and infrastructure, solving complex problems, mentoring engineers, collaborating across product and design teams, and improving system scalability and maintainability. The role also contributes to product growth, open-source collaboration, and data-informed decisions within a fully remote international team.

Architect, build, and own Mozilla’s Salesforce platform supporting enterprise sales and revenue operations. Responsibilities include designing data, security, sharing, and business-process models; developing with Salesforce Flow, Apex, SOQL, and Lightning Web Components; integrating Salesforce with NetSuite, BigQuery, and other systems; establishing CI/CD, testing, governance, and release practices; and creating secure MCP and AI-agent integrations. The role partners across Sales, Finance, Legal, Security, and IT while leading platform reliability, support, and long-term technical strategy.

Architect, build, and own Mozilla’s Salesforce platform for enterprise sales and revenue operations. Responsibilities include designing data, security, integrations, lead-to-cash workflows, release management, and operational practices; developing Apex, SOQL, Lightning Web Components, and declarative Salesforce capabilities; integrating NetSuite and BigQuery; and creating secure MCP and AI-assisted workflows. The role provides technical direction, partners across business and technology teams, and leads platform reliability, governance, support, and continuous improvement.

Build, own, deploy, and operate backend services and APIs powering Mozilla products. Responsibilities include backend development, cloud infrastructure collaboration, monitoring and alerting, production support, incident response, releases, security and privacy reviews, API design, code reviews, and mentoring. The role requires end-to-end service ownership, on-call participation, and maintaining reliable production systems.

Build and own backend services for Mozilla’s Ecosystem Services, including server-side logic, APIs, distributed systems, cloud infrastructure, monitoring, deployments, and production reliability. Participate in on-call support, incident response, releases, security and privacy reviews, code reviews, and cross-functional collaboration. Mentor junior engineers and drive improvements in quality, testing, and engineering processes.

Lead iOS development for Thunderbird: design and improve mobile architecture, optimize performance and security, debug and test across unit/integration/automation, review and document technical decisions, own projects end-to-end, and collaborate with product, UX, and open-source contributors to deliver a scalable, accessible, and maintainable iOS app.

Lead design and development of Thunderbird's iOS app, improving architecture, performance, reliability, security, and accessibility. Own projects end-to-end, debug and test at unit/integration/automated levels, review code, mentor contributors, and document technical decisions while collaborating with product, UX, and open-source community.

Manage strategic Firefox Enterprise accounts in France by building customer relationships, driving adoption, overseeing renewals and retention, identifying expansion opportunities, tracking account health, and coordinating internal teams to resolve issues and deliver customer success. The role requires fluent English and French, enterprise SaaS or platform account management experience, negotiation skills, and travel within France.