Senior Fullstack Engineer, Core Products

OpenKrill; United States; On-site; USD 124,000 - 147,000; Full time

Benefits offered by this job

Medical, Dental, Vision

Parental leave

401k

Unlimited vacation

Work from home setup

Job summary

Clair is hiring a Senior Software Engineer on the Core Products team to lead AI-native features, architect scalable systems, and own the product lifecycle from conception through post-launch metrics.

You will drive autonomous agent workflows, work across frontend and backend stacks, and influence architecture while delivering high-performance fintech solutions for hourly workers across the United States.

Qualifications

• Deep experience building, deploying, and maintaining production-grade applications in cloud-native environments.

Responsibilities

• End-to-End Product Ownership: define technical strategy and trade-offs with design, product, and data teams.

Skills

Cloud-native

AI-native workflows

Fullstack development

Frontend React/TypeScript

Backend Laravel PHP

Event-driven architectures

Data pipelines

Telemetry & monitoring

Security & performance

Tools

React.js

TypeScript

JavaScript (ES6+)

Expo (React Native)

Laravel (PHP)

PostgreSQL

AWS

Job description

ABOUT CLAIR

If you can send your friends money in seconds, why does it still take your employer two weeks to send your paycheck?

At Clair, we are on a mission to create financial freedom for America's workers by giving them a digital banking platform that allows them to get paid as soon as they clock out of work. But we're not just another digital bank or on-demand pay provider. We meet Americans at their place of work by embedding our products within the scheduling, workforce management, and payroll apps they already use every day.

Learn more about us at getclair.com/about http://getclair.com/about

WHO WE ARE LOOKING FOR

At Clair, we are building technology that transforms how people access their pay. As a Senior Software Engineer on the Core Products team, your job extends well beyond converting tickets into pull requests. We are looking for an engineer who operates like a Product Manager: someone who takes full ownership of the feature lifecycle, obsessively measures post-launch business outcomes, and designs systems with downstream impacts—like data pipelines and analytics—in mind.

You will lead the adoption of AI-native engineering practices across the team, leveraging state-of-the-art models, building autonomous agents, and embedding agentic workflows into both our core product architecture and internal development processes.

We operate at the intersection of fintech, embedded finance, and real-time payroll systems—building products that handle millions of transactions with sub-second performance. Your work will directly enable millions of hourly workers to access financial freedom.

If you are a problem solver who loves technical challenges, is passionate about performance optimization, security, and scalable architecture, and wants to influence key product decisions, you’ll love working with us.

WHAT YOU’LL DO

• End-to-End Product Ownership: Partner directly with design, product, and data teams to define technical strategy, question assumptions, and evaluate product trade-offs before writing a line of code.
• Build with AI & Agents: Architect and deploy features utilizing AI models and autonomous agentic workflows. Drive the integration of modern AI tools to accelerate team velocity and enhance user experience.
• System-Wide Architecture: Design resilient systems considering latency, scale, downstream data consumers, and telemetry, ensuring data pipelines receive clean, actionable events.
• Measure Business Impact: Own features after launch. Instrument key metrics, monitor performance dashboards, investigate post-release gaps, and iterate based on real user behavior and business outcomes.

WHAT YOU’LL NEED

• Technical Excellence: Deep experience building, deploying, and maintaining production-grade applications in cloud-native environments.
• Agentic Workflows & AI Native: Demonstrated experience leveraging AI-assisted workflows for rapid, high-quality code generation.
• Product & Business Acumen: A track record of prioritizing user impact over technical cleverness and holding yourself accountable to business metrics (conversion, retention, operational cost).
• Systems & Data Mindset: Strong understanding of event-driven architectures and how core transactional systems feed analytical data engineering pipelines.
• Fullstack Development: Ability to work across the stack comfortably, fully owning a product or feature.- Frontend – React.js, TypeScript, JavaScript (ES6+), and Expo (React Native) – Expertise with these is necessary.- Backend – Laravel (PHP) – Some experience is ideal, but not a necessity as long as you have demonstrable expertise building performant backend systems at scale.- Databases – PostgreSQL- Infrastructure – AWS
• Collaboration & Communication: Exceptional communication skills. Clair is a fast-paced, highly collaborative environment. Whether on calls or in writing, we value clarity of communication and precision in what we say very highly.
• Travel: Occasional travel for company onsites and project planning, typically 2-4 trips per year, but can vary as needed.

BONUS QUALIFICATIONS

• Experience working with financial technology platforms and payroll systems.
• Specific experience in lending, payments, BNPL, ACH, etc is highly valued.

WHY JOIN US

• Massive impact: Your work will empower millions of workers to access their wages instantly.
• Challenging, meaningful work: We are solving hard fintech problems at scale.
• Autonomy & ownership: Engineers own features end-to-end and influence architecture and product decisions.
• Top-tier teammates: Work with elite engineers who are passionate about high-performance, scalable systems.
• Fast-moving culture: We prioritize execution, technical excellence, and customer impact.
• Growth opportunities: Lead projects, mentor others, and grow into a Staff to Principal Engineer. As Clair continues quickly scaling, management opportunities may also open up.
• Flexible work & perks: Competitive salary, equity, unlimited PTO, conference stipends, and top-tier benefits.

ADDITIONAL DETAILS

Location: Remote with occasional travel for company onsites or project planning

Compensation:

• Senior Engineer I: Annual base salary of $124,000 - $134,000.
• Senior Engineer II: Annual base salary of $137,000 - $147,000.

The actual base pay within this range depends on many factors, such as education, skills, and experience. Base pay is only one part of our competitive total compensation package, which includes benefits, perks, and equity. The base pay range is subject to change and may be modified in the future.

Clair will only contact candidates from @getclair.com email addresses. We will never ask for payments or sensitive personal information during the hiring process. If you happen to receive anything suspicious, please ignore it.

NEED MORE CONVINCING?

Apart from getting to work with our incredible team, here are some of the benefits you can expect when you join Clair:

• Medical, Dental, & Vision Coverage, with option to extend to your family
• Fully-paid parental leave
• Company-sponsored 401k, HSA, and FSA
• Unlimited vacation for salaried roles, generous PTO for hourly roles
• Work from home setup allowance
• Access to your earnings every day on Clair
• Company-sponsored short-term and long-term disability insurance

EQUAL OPPORTUNITY EMPLOYER INFORMATION

Clair is an equal opportunity employer and we value diversity at our company. We actively seek a diverse applicant pool and do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

For questions, please email us at [e-mail]