Senior Engineer, Platform

About Clark

Every audit answers one question: can I trust this? For 150 years, people have answered it by hand. Clark is changing that.

We build AI that doesn’t just assist auditors. It does the audit work itself. More than 35 CPA firms already use Clark to run audit fieldwork faster and at equal or better quality. Audit is where we start. Our mission is to build the trust infrastructure layer for the AI economy, and we’re only getting started.

We’re a small, hard-working team backed by top investors. We take ownership and judge ourselves by results. If you want to change how an entire profession works, you’ll fit in here.

The Role

We are hiring Senior Platform Engineers to build the product and systems through which customers experience Clark.

You will own features from initial customer problem through frontend experience, backend architecture, data models, integrations, deployment, and production operation.

This is a broad engineering role for someone who enjoys moving across the stack, working directly with users, and solving the highest-leverage technical problem regardless of where it lives.

You will help build customer-facing workflows, integrations, shared services, internal tools, and the engineering foundation that allows Clark to scale.

Why This Role Matters

Clark’s customers operate across complex workflows involving documents, accounting systems, workpapers, approvals, evidence, and collaboration. Our product must make those workflows simpler without sacrificing reliability, security, or control.

Full-stack engineers turn Clark’s AI capabilities into complete products that customers can deploy, understand, and trust. They also build the integrations and platform foundations that allow Clark to connect with existing systems and support increasingly complex enterprise workflows.

The systems you build will directly affect customer adoption, product velocity, reliability, and Clark’s ability to scale.

What You'll Do

Design and ship customer-facing product features from frontend through backend

Build intuitive interfaces for complex audit and accounting workflows

Design APIs, services, data models, background jobs, and application architecture

Work with AI engineers to turn AI capabilities into reliable, reviewable product experiences

Build integrations, connectors, synchronization systems, and data-ingestion workflows

Connect Clark with accounting platforms, document repositories, workflow tools, and customer systems

Build shared services and reusable product infrastructure

Improve application reliability, stability, scalability, and performance

Improve observability, monitoring, alerting, and operational tooling

Improve testing, deployment, and release processes

Investigate production issues and resolve performance bottlenecks

Integrate internal systems such as CRM, support, knowledge, communication, and operational tools

Partner directly with customers, Audit Engineers, Customer Success, Implementation, Sales, and Product

Translate ambiguous customer and business problems into well-designed technical solutions

Maintain high standards for security, data protection, maintainability, and operational excellence

Help establish the engineering practices and technical foundations that Clark will scale on

Who You Are

5+ years of software engineering experience

Experience building and operating production web applications

Strong frontend and backend engineering fundamentals

Able to independently own features across user experience, application logic, data, and infrastructure

Experience designing APIs, data models, background processing, and integrations

Experience with modern web applications, relational databases, and cloud infrastructure

Strong product sense and empathy for customers

Comfortable working directly with users and incorporating feedback quickly

Excellent judgment around reliability, scalability, security, and maintainability

Comfortable debugging across application, integration, and infrastructure boundaries

Able to balance speed with long-term technical quality

High ownership, strong communication, and comfort operating in ambiguous environments

Excited to operate in person with a fast-moving, talent-dense team

Bonus

Experience building enterprise SaaS or complex workflow products

Experience building APIs, integrations, connectors, or data-synchronization systems

Experience with accounting systems, document-management systems, or professional-services workflows

Experience building products that incorporate LLMs or other AI capabilities

Experience with platform engineering, developer tooling, observability, or production reliability

Experience building internal tools and workflow automation

Experience with security, identity, access control, compliance, or regulated customer environments

Experience at an early-stage startup

The Environment

5 days a week on-site in NYC — no remote or hybrid

Startup hours and pace — this isn't a 9-to-5

Flat structure, no hierarchy — everyone ships

High ownership — you own outcomes, not just tasks

Benefits

Unlimited PTO

Wellhub Platinum membership

Comprehensive health, dental, and vision coverage

Free company dinner every day