Jobs in the United States

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Added 1 min ago
Sr. Manufacturing Execution Systems (MES) Engineer
Community Talent Partners
Raleigh, NC
Community Talent Partners is seeking an experienced Senior MES Engineer on behalf of a client in the industrial automation sector, based in Raleigh, North Carolina.
Added 1 min ago
Software Engineer, Infrastructure (C++)
Fabri
Billerica, MA
We are looking for a Software Engineer, Infrastructure (C++) to build the software systems that connect Fabri's digital manufacturing process end-to-end.
Added 1 min ago
Software Engineer, Geometry/Simulation (C++)
Fabri
Billerica, MA
We are looking for a Software Engineer, Geometry & Simulation to build the software systems that connect Fabri's digital manufacturing process end-to-end.
Added 1 min ago
F
Software Engineer, Generalist (C++/Python)
Fabri
Billerica, MA · Boston, MA
- $140,000 to $180,000 USD / year
We are looking for a Software Engineer, Generalist to build the software systems that connect Fabri’s digital manufacturing process end-to-end.
Added 1 min ago
Software Engineer, Applied ML
Fabri
Billerica, MA
We are looking for a Software Engineer, Applied ML to build the software systems that connect Fabri's digital manufacturing process end-to-end.
Added 4 mins ago
Full Stack Software Engineer ($8,500) - Sarasota, FL
Jobs Xchange
Sarasota, FL
Are you a software engineer with a passion for developing web-connected applications and a strong foundation in programming? At Jobs Xchange, you'll have the opportunity to work on…
Added 4 mins ago
Backend Software Engineer ($10,000) - Washington, DC
Jobs Xchange
Washington, DC
Are you a backend software engineer with a passion for building the future of communication, even if you're not actively searching? Imagine contributing your expertise to a cutting-edge…
Added 5 mins ago
Billing Engineer
Tailscale
Remote, United States
We’re seeking a highly skilled and motivated Software Engineer to join our growing team. You will work as part of the engineering team to:
Added 5 mins ago
Billing Engineer
Tailscale
Remote, United States
We’re seeking a highly skilled and motivated Software Engineer to join our growing team. You will work as part of the engineering team to:
Added 5 mins ago
UI
Manufacturing Design Engineer
Ulysses Inc.
San Francisco, CA
- $130,000 to $180,000 USD / year
We're looking for a Manufacturing Engineer to build the tooling and test infrastructure that makes that possible - and "tooling" undersells it. A good part of what you build will be…
Added 5 mins ago
GL
Frontend Developer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $32,000 to $40,000 USD / year
…role for someone who just "makes things look good." We need an engineer who understands the React reconciliation process, cares deeply about Core Web Vitals, and writes self-documenting…
Added 7 mins ago
MLOps Engineer Internship
Metasys
Remote, United States
The MLOps Engineer is crucial for bridging the gap between data science and production, responsible for the reliable, scalable, and secure deployment of machine learning models. You will…
Added 7 mins ago
Automation QA Engineer Internship
Metasys
Remote, United States
The Automation QA Engineer is vital for ensuring the reliability, performance, and correctness of our entire supply chain e-commerce platform. You will be responsible for designing,…
Added 7 mins ago
AI/ML Engineer Internship
Metasys
Remote, United States
The AI/ML Engineer with an AI Agent Focus is a specialized role dedicated to designing, building, and deploying autonomous AI agents that handle complex business processes independently.…
Added 7 mins ago
Senior GCP Data Engineer
Comspark group
Sunnyvale, CA
Continuous Integration tools such as Bamboo, Jenkins, or TFS
Added 10 mins ago
ET
SAP Technical & Functional Support Engineer
EdgeQ Technologies Private Limited
Remote, United States
- $85,000 to $130,000 USD / year
Job Title: SAP Technical & Functional Support Engineer
Added 10 mins ago
ET
Junior Data Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $75,000 to $115,000 USD / year
We are seeking a motivated and detail-oriented Junior Data Engineer to join our data engineering team. The ideal candidate will have a foundational understanding of Python, SQL, ETL…
Added 10 mins ago
ET
Frontend Software Engineer
EdgeQ Technologies Private Limited
New York City, NY
- $65,000 to $95,000 USD / year
We are looking for a motivated and detail-oriented Frontend Software Engineer to join our software development team. The ideal candidate should have a basic understanding of programming…
Added 10 mins ago
ET
Embedded Software Engineer (US)
EdgeQ Technologies Private Limited
San Jose, CA · Seattle, WA · Washington, DC
- $85,000 to $135,000 USD / year
We are seeking a skilled Embedded Software Engineer to design, develop, test, and maintain software for embedded systems and connected devices. The ideal candidate will have experience in…
Added 10 mins ago
ET
DevOps Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $110,000 to $150,000 USD / year
We are seeking a skilled and motivated DevOps Engineer with 2–7 years of professional experience in database management, data modeling, ETL processes, and data quality management.
Added 10 mins ago
ET
Data Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $85,000 to $125,000 USD / year
We are looking for a motivated and enthusiastic Data Engineer to join our growing engineering team. This opportunity is open to candidates with 0–5 years of experience, including fresh…
Added 10 mins ago
ET
Data Engineer
EdgeQ Technologies Private Limited
New York City, NY · Seattle, WA · Austin, TX
- $85,000 to $160,000 USD / year
We are seeking a skilled Data Engineer with 2–8 years of experience to design, develop, and maintain scalable data pipelines and data infrastructure. The ideal candidate will have strong…
Added 14 mins ago
Mechanical Engineer IV
Applied Materials, Inc
Santa Clara, CA
As a Mechanical Engineer, you’ll leverage your strong foundation in physics, mathematics, and materials science to process and resolve mechanical problems, design and implement custom…
Added 16 mins ago
H
Machine Maintenance and Integration Engineer
Helion
Everett, WA
- $117,000 to $138,000 USD / year
…keeping them ready for operation. As a Machine Maintenance and Integration Engineer, you will play a critical role in maximizing machine availability in a highly demanding and changing…
Added 21 mins ago
Principal Software Engineer, Onsite
RTX
United States
The position is for a Principal Software Engineer role that is responsible for conducting dry runs and formal runs of the software verification tests. This includes the test data analysis…

Gradientflo Labs

Frontend Developer (Founding Team)

San Francisco, CA, United States

$32,000 to $40,000 USD / year

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Job details

Pay: $32,000 to $40,000 USD / year
Posting language: English

Original job description

You will own the front-end architecture for Gradientflo’s core web applications. This is not a role for someone who just "makes things look good." We need an engineer who understands the React reconciliation process, cares deeply about Core Web Vitals, and writes self-documenting code. You have roughly 3 years of experience. You have moved past "making it work" and now focus on "making it scale." You will be working with server-side rendering, complex global state, and SEO critical implementations. We value clear writing, clean architecture, and strong debugging skills above all else. Core Responsibilities

Architect high-performance pages using Next.js (App Router).
Manage complex application state using Redux Toolkit (RTK).
Audit and optimize application performance (LCP, CLS, FID) using React Profiler and Lighthouse.
Refactor legacy components into reusable, strict SOLID compliant UI patterns.
Design custom hooks that abstract logic cleanly without causing "dependency hell."
Implement SEO best practices (Structured Data, Dynamic Metadata, sitemaps).
Debug complex race conditions and rendering issues using Chrome DevTools.
Write strict TypeScript to eliminate runtime errors.
Conduct code reviews focusing on performance impacts and maintainability.

Technical Requirements Must-Have Skills

React.js & Next.js (3+ years experience)
Redux Toolkit (Slices, Thunks, Selectors)
Performance Optimization (Memoization, Lazy Loading, Code Splitting)
TypeScript (Generics, Utility Types)
Deep understanding of React Hooks (useCallback, useMemo, useReducer)
Strong Debugging skills (knowing why a component re-rendered)
SEO Expertise (Next-SEO, JSON-LD, Open Graph tags)

Strong Pluses

Experience with Headless CMS integration
Experience writing unit tests (Jest / React Testing Library)
Knowledge of Web Accessibility (WCAG)

Technical Task (Mandatory Assessment) Project: Real-Time Asset Tracker (Simulated) Objective: Build a widget that tracks asset prices via simulated polling. This task is designed to expose how you handle complex effect dependencies, stale closures, and memory leaks when a component unmounts. Data Source Note: Do not use a real external API. You must use Static JSON Data stored locally (e.g., data.json) and simulate network latency/random price fluctuations using setTimeout. Functional Requirements

The "High-Dependency" Hook (useAssetTracker) You must implement a custom hook that manages data polling. It must accept all of the following dependencies in its arguments:

assetID (string, e.g., "BTC")
currency (string, e.g., "USD")
pollInterval (number, e.g., 3000ms)
alertThreshold (number, user-defined price alert)
isAutoRefreshEnabled (boolean)
userTier (string, affects polling speed)
onAlertTriggered (function, callback to parent)

The Logic Challenge:

Simulation: The hook should "fetch" data from your static JSON, adding a random delay (500ms to 1500ms) to simulate a network request.
Polling: When isAutoRefreshEnabled is true, fetch new data every pollInterval.
The Trap: If the user types in the alertThreshold input (updating the dependency), it must not reset the polling timer.
The Constraint: You are forbidden from using eslint-disable-next-line react-hooks/exhaustive-deps. You must solve the dependency array stability using useRef or split effects.

Mandatory Lifecycle Cleanup

Your implementation must handle the "Unmount" event gracefully:

Async Cancellation: Since you are using setTimeout to simulate an API, you must ensure that if the component unmounts while the timeout is pending, the state update is cancelled.
Timer Cleanup: clearInterval must be called immediately if assetID changes or the component unmounts.
Proof: Add a console.log('Cleaning up resource for:', assetID) in the return statement of your effect.

Redux Toolkit & State

Store the fetched price history in a Redux Slice.
Use a Memoized Selector to calculate the "High/Low" of the session.
Performance: Ensure that updating the price history only re-renders the Chart/Price component, not the entire Page Layout.

SEO Implementation

Create a dynamic route: /market/[assetID].
Inject dynamic Metadata (Title/Description) based on the assetID.
The page must be indexable by bots (Use Server Components for the shell, Client Components for the tracker).

Clean Code Requirements Mandatory rules:

No useEffect for derived state (use useMemo).
Strict SOLID alignment (Single Responsibility components).
No any types in TypeScript.
Proper separation of container logic vs. presentational components.

Submission Requirements

GitHub Public Repository

Your repo must include:

README explaining how you solved the "Timer Reset" issue when the alertThreshold changed.
Architecture Diagram: A simple diagram showing how data flows from your Static JSON -> Hook -> Redux -> UI.
Local run instructions.

Pull Requests to Raise (The "3-PR Rule")

You must create 3 distinct PRs to simulate a real workflow:

PR 1: Project Setup
Next.js scaffold, TypeScript config, Redux Store setup, Static JSON file creation.
PR 2: The Core Logic
The useAssetTracker hook with all 7 dependencies.
The "Simulated API" service layer.
Redux Slices.
PR 3: Performance
UI Polish.
React.memo optimizations.

Loom Video (Mandatory)

Record a 5 to 10 minute Loom video covering:

The Cleanup Demo:
Open Chrome DevTools Console.
Start the tracker.
Navigate away from the page while it is waiting for the "simulated" data.
Show that your cleanup log appeared and no React warnings (e.g., "update on unmounted component") occurred.
Code Walkthrough: Explain how you used useRef (or your chosen method) to handle the alertThreshold dependency without breaking the linter rules.
SEO Check: Inspect the page source to show the generated Metadata tags.

Evaluation Criteria

The Dependency Array: Did you list all 7 dependencies? (Omitting one is a fail).
Stability: Does changing the Alert Threshold cause the timer to jitter/reset? (It shouldn't).
Cleanup: Is the setTimeout or setInterval actually cleared on unmount?
Code Clarity: Is the code clean, readable, and formatted?
SEO: Is the metadata correctly generated server-side?
Process: Did you follow the 3-PR structure?

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