Full-Stack Engineer

Onsemble Full-Stack Engineer- Fully Remote

Req #9950

San Francisco Bay Area, CA, USA

Job Description

Posted Monday, August 10, 2026 at 10:00 AM | Expires Sunday, October 11, 2026 at 9:59 AM

Hajoca Corporation is one of the country’s largest privately-held wholesale distributors of plumbing, heating & cooling, and industrial supplies. Founded in 1858, Hajoca is a company based on the principles of “Service, Integrity, Reliability,” and on relationships of trust and support with teammates, customers, and suppliers. Throughout its history, Hajoca has played an active role in shaping advances in plumbing. However, we attribute our success to two simple truths; a unique business philosophy and talented people. Hajoca is all about the people, who give us our advantage, and who will guide us successfully into the future.

Although Hajoca is a large company, we work in a decentralized environment where each of our locations, called Profit Centers (PCs), is run by the Profit Center Manager as if it were their own small business. A typical Profit Center is the heart of our business and consists of a warehouse, counter, sales office, and (sometimes) a showroom. Our PCs conduct business under unique trade names and offer a customized business approach, honoring what’s special about each local marketplace.

Onsemble is one of those trade names and is looking for a Full-Stack Engineer. This position is fully remote.

Pay for Onsemble Full-Stack Engineer- Fully Remote is between $150,000 and $160,000 per year at this position.

Are you a full-stack engineer who thrives on owning product features from discovery through launch and iteration? Are you eager for an opportunity to shape the use of modern AI-native software? Do you bring strong technical judgment, a hands-on approach, and an ownership mindset across both frontend and backend systems? If so, then we’d like you to join our dedicated team as a Full-Stack Engineer.

About Onsemble

We’re the digital innovation team inside one of the largest wholesale distributors in the U.S., operating with the autonomy of a startup and the scale, customer base, and durability of a major corporation.

Our platform has strong product-market fit today – we have more demand than we can keep up with. The work you lead will immediately impact small and mid-sized contractors and Profit Centers that rely on us every day.

We’re focused on building AI-enabled workflows across a critical but historically underserved layer of the supply chain: SMB contractors and wholesale distribution for the trades. This is a rare opportunity to shape modern, AI-native software that makes real-world businesses meaningfully more productive, profitable, and future-ready.

About the Role

The Full-Stack Engineer is responsible for building product across our contractor-facing platform. This role partners closely with Product and Engineering leadership to translate real customer needs into reliable, scalable software — owning features end-to-end across the stack

The Full-Stack Engineer takes a high level of ownership over their responsibilities shipping production code daily, shaping architecture across frontend and backend, and working in an AI-native development model where agentic coding tools are core to how we build.

In this role, you will

Own Product & Execution

Own delivery of product features end-to-end, from discovery through launch and iteration.

Partner with Product to scope work and ensure speed, quality, and durability.

Ship production software that supports increasing scale, complexity, and customer adoption.

Act with urgency, being responsive to important and time-sensitive matters and owning their resolution.

Develop AI-Native Software

Actively practice AI-enabled software development in day-to-day work, using tools like Claude Code and similar agentic coding systems to design, build, review, and ship production software.

Use AI to increase leverage, velocity, and code quality — while maintaining strong human judgment around architecture, correctness, and long-term maintainability.

Ensure AI-enabled features are built responsibly, pragmatically, and in ways that deliver real customer value

Own Your Technical Contributions

Contribute to architecture and technical decisions across frontend and backend systems.

Maintain a high bar for code quality, reliability, and maintainability.

Improve development workflows, tooling, and processes to increase velocity.

Identify risks early and surface them through planning and clear communication.

Successfully complete required safety and compliance training programs as assigned.

Perform other reasonably related duties as assigned by immediate supervisor and other management as requested.

Our Stack

Frontend

React, TanStack Query, Vite, TypeScript

Backend

Node.js, Express.js, TypeScript; serverless and API-based services

Data

PostgreSQL (via Supabase), Drizzle ORM

Infra

Supabase; Heroku; AWS (including Lambda for async and integration workflows)

Auth

Clerk

AI

Claude-based integrations and internal tooling; GPT-5 for search

About You

Bachelor's Degree in a relevant field or related work experience.

4 or more years of professional software engineering experience.

Strong background in AI-assisted software development and modern web applications, with deep familiarity in React / Node.js ecosystems

Solid understanding of backend APIs, data models, and system integrations

Our ideal candidate will also

Have a strong background and familiarity with AI-assisted software development; modern web applications, with deep familiarity in React / Node.js ecosystems, and Claude Code.

Have experience shipping production software used daily by real customers

Demonstrate strong technical judgment

Be comfortable making architectural decisions and explaining tradeoffs

Possess a practical orientation toward AI

using it to increase leverage and velocity, not novelty

Demonstrate strong instincts for correctness, reliability, and long-term maintainability

Take ownership of their work

Possess a strong ownership mindset—you take responsibility for outcomes, not just tasks

Be a clear communicator who proactively aligns with engineers, product, and stakeholders.

Be calm, pragmatic, and able to thrive in ambiguous and fast-moving environments

Demonstrate excellent oral and written communication skills and the ability to convey answers, issues, and status changes in a clear, concise, and effective manner.

Possess strong organizational and time management skills, with the ability to prioritize tasks effectively.

The benefits of working with us

Our culture is well-suited for exceptional people who use their talents to drive business and want to share in the financial success their efforts yield. In addition to a competitive starting wage, we offer a Profit-Sharing Program that provides each team member with an opportunity to earn a direct share of the profits on an annual basis.In addition to our generous compensation package,

Hajoca also offers

Full-time benefits (for team members working 30 or more hours per week):

Medical, dental, vision, and prescription coverage

Accident, Hospital Indemnity, and critical care coverage

Life insurance and Long Term Disability

Pre-tax accounts for healthcare, dependent care, and commuter benefits

Paid vacation, holidays, and sick time (sick time also offered to PT team members as required by state law)

Paid pregnancy and parental leave

Paid day of community service

Full-time and part-time benefits

401(k)

Retirement cash account with company contributions

Targeted training programs focused on your personal and professional growth

Company wellness program

Employee discounts

College tuition benefits

*Please note that benefit offerings may differ for teammates covered under a collective bargaining agreement or employed through an intern program.

EEOC Statement

Hajoca Corporation is an Equal Opportunity Employer (Equal Opportunity Employer/Veterans/Disabled).

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity/expression, national origin, age, veteran status, disability, or any other protected category pursuant to federal, state or local laws and will not be discriminated against on the basis of any such categories/status. Hajoca is committed to providing reasonable accommodations for qualified individuals with disabilities including, but not limited to, during the application process. Please let us know if you need assistance or an accommodation due to a disability.

We are a drug free workplace. Employment is contingent upon pre-employment drug screening, subject to any federal, state and local laws.