Jobs at Customer.io

Advise customers on email deliverability, diagnose authentication, infrastructure, reputation, blocklist, spam trap, and engagement issues, and lead complex cases through resolution. Partner with Engineering, Customer Success, and Technical Support; identify acceptable-use violations; coach internal teams; and develop documentation, training, processes, and scalable customer resources.

Provides technical customer support through email and live chat, triages tickets, diagnoses product issues, assists customers with onboarding and platform usage, and identifies product improvements. The role also supports process improvement and collaborates with Product and Customer Success teams. Candidates should understand basic programming concepts, communicate clearly, work independently, and be available for rotating weekend coverage during Central or Mountain time zone hours.

Own the full mid-market B2B sales cycle, including prospecting, discovery, demos, solution alignment, negotiation, and closing. Build and manage self-sourced and SDR-supported pipelines, acquire new customers, track sales performance, and collaborate with SDR, Customer Success, and Technical Support teams. Manage deals typically under $50,000 ACV while nurturing mid-sized client relationships and identifying business needs.

Own ambiguous, cross-team product engineering problems from framing through launch and iteration. Partner with product, design, and data; lead architecture, reliability, performance, and technical decisions across the stack. Influence teams without formal authority, mentor engineers, improve engineering practices, use metrics and experimentation, and apply AI throughout software development. Participate in on-call support.

Set technical direction for distributed messaging systems handling billions of messages daily. Make architecture decisions balancing scale, cost, and reliability; solve ambiguous cross-team problems; establish engineering standards; mentor senior engineers; improve processes and tooling; assess candidates; and use AI agents for multi-file software changes.

Lead and develop a new team of eight mid-market Account Executives. Responsibilities include coaching, pipeline inspection, forecast accuracy, outbound generation, deal strategy, quota attainment, CRM hygiene, and cross-functional collaboration with Sales Operations, Marketing, and Solutions Architecture. The manager will establish team structure, improve execution, operationalize go-to-market initiatives, and maintain high performance standards in a remote SaaS environment.

Lead the global accounting function and team of approximately seven, overseeing close, general ledger, AP/AR, payroll, treasury, revenue recognition, equity compensation, controls, audits, tax coordination, and international compliance. Improve close timelines and reconciliation quality, author technical accounting memos, maintain audit-ready books, and drive automation across NetSuite and connected finance systems. Partner with senior stakeholders across the company while scaling accounting operations for a remote-first, multi-currency subscription business.

Lead company-wide product design vision, evolve the Pluma design system, and improve the connection between design intent and shipped products. Design experiences for developer and builder audiences, including CLI-native and API-first workflows, and lead human-AI and agentic product design. Partner with product and engineering leadership, guide design reviews, mentor Staff designers, raise organizational craft standards, and support hiring and calibration.

Own full-cycle recruiting for hard-to-fill go-to-market roles, with a strong emphasis on targeted outbound sourcing and engaging passive candidates. Build candidate lists, develop search strategies, partner with hiring managers, calibrate profiles using market data, manage candidate experience, and close offers. The recruiter will support Sales, Customer Experience, Marketing, and Business Operations searches, use AI tools to improve sourcing efficiency, and independently manage searches end to end.

Lead GTM finance owning the end-to-end P&L for Sales, Marketing, and Customer Success. Build first-principles financial models, drive unit economics and ARR forecasting, deliver exec/board reporting, partner on capacity/pricing, champion AI-enabled finance workflows, and hire and develop the GTM finance team as the company scales.

Partner with business leaders to drive talent management, performance cycles, organizational design, change management, employee relations, engagement, and people programs. Use people analytics to spot trends, advise managers, and support global workforce planning while contributing to the People Experience team and fostering DEIB and employee development.

Lead development and maintenance of Customer.io SDKs across platforms, improve SDK delivery infrastructure (CI, testing, release), partner with product/design, use AI agents to make multi-file code changes, and engage with developer customers to improve experience.

The role involves owning the email channel's infrastructure, developing frontend experiences, designing backend systems, and ensuring deliverability in a cloud-native environment.

As a Senior Software Engineer, you'll design and build distributed systems in Go, collaborate across teams, and ensure performance and reliability at scale.

Lead and develop a team of data scientists and analysts to deliver forecasting, experimentation, behavioral analytics, segmentation, churn and health-score models, and revenue forecasts. Partner with product, marketing, sales, and CX to define metrics, measurement frameworks, and analytics best practices while managing internal analytics platform capabilities.

The Senior Data Scientist will analyze customer data, design experiments, build models, and support data-driven decision-making across product, marketing, and customer experience teams.

The Senior Software Engineer will design and build fullstack features using Go, React, and Ember, ensuring optimal customer experiences and system scalability while mentoring peers and driving projects.

Lead a squad end-to-end to deliver customer value: set direction, drive execution, ensure scalable and secure architectures, stay close to technical work, coach and grow engineers, hire and manage performance, and apply AI-native practices to accelerate delivery.

Build production-grade infrastructure for GTM AI agents: harden prototypes, write evals and prompts, implement observability, own deployment pipelines on GCP, manage safe database access, monitor and improve agent fleet, and partner with GTM builders to scale reliability.

Design, build, and own large-scale distributed backend systems in Go to process billions of events and petabytes of data. Lead architecture, reliability, observability, and performance efforts; improve service communication and data pipelines; debug production at scale; mentor engineers and share learnings publicly.