Jobs in the United States

25+ jobs

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Added 1 min ago
Pre-Silicon Signoff Lead - 19498
Synopsys
Sunnyvale, CA
You are a seasoned engineer with deep expertise in high-speed serial communication and transceiver design, blending theoretical rigor with hands-on laboratory proficiency. You thrive in…
Added 16 mins ago
Design Engineer II
Silicon Laboratories Inc.
United States
…connectivity, building embedded technology that connects devices and improves lives. Merging cutting-edge technology into the world’s most highly integrated SoCs, Silicon Labs provides…
Added 22 mins ago
Senior Software Quality Engineer
St. Jude Medical, Cardiology Division, I
CA
Evaluate verification and validation strategies, test coverage, traceability, and defect management activities to ensure requirements, risk controls, cybersecurity considerations, and…
Added 27 mins ago
IR
Electrical Engineer
Icarus Robotics
New York, NY
- $120,000 to $180,000 USD / year
You’ll own electrical subsystems across the robot: boards, onboard compute, power, and harnessing. The role is generalist, with a focus on board design and avionics, and suits an engineer…
Added 27 mins ago
Test Automation Engineer
American Operations Corporation
Montgomery, AL
The Test Automation Engineer works closely with DevSecOps personnel, Software Engineers, Functional SMEs, Enterprise Integration personnel, and Independent Test Leads to automate testing of…
Added 27 mins ago
PMEL / PAMS Functional Engineer
American Operations Corporation
Montgomery, AL
The PMEL/PAMS Functional Engineer works closely with Product Owners, System Architects, Enterprise Integration personnel, Help Desk personnel, and Independent Test Teams to ensure…
Added 27 mins ago
DevSecOps Platform Lead
American Operations Corporation
Montgomery, AL
…Masters, System Architects, Cybersecurity personnel, Independent Test Teams, Enterprise Integration personnel, and Cloud Engineers to manage pipeline promotion, release validation,…
Added 27 mins ago
Build & Release Engineer
American Operations Corporation
Montgomery, AL
The Build & Release Engineer works directly with the DevSecOps Platform Lead, Configuration Manager, Independent Test Lead, Cybersecurity personnel, and Enterprise Integration personnel to…
Added 27 mins ago
QA / DevOps Engineer
NetSpeek
Remote, United States
The QA / DevOps Engineer owns platform quality, release reliability, and the AI-assisted engineering workflows our team uses to ship safely.
Added 28 mins ago
ML
Thermohydraulic Test Engineer
Mersenne Labs
Washington, DC
- $125,000 to $175,000 USD / year
The Prototype and Test Engineer is a high-responsibility, hands-on engineering role focused on the design, assembly, and testing of prototype hardware and systems. This position is critical…
Added 31 mins ago
Supervising Senior Automation Engineer I
Stellix
Foxborough, MA
We are currently looking for a Senior Process Automation Engineer who will develop high quality, well-tested and well-documented application software designs. You will lead DeltaV projects…
Added 35 mins ago
ME
US - Electrical Engineer - G00546
Manpower Engineering
Arvada, CO
- Up to $150 USD / hour
Our client, a leading aerospace and defense technology organization, is seeking a Electrical Engineer to join their team. As an Electrical Controls Engineer, you will be part of the…
Added 35 mins ago
Mechanical Engineer - Combustion
GE Gas Turbines (Greenville) L.L.C.
United States
As a Mechanical Design Engineer within the Gas Turbine Engineering organization, you will join the Combustion Design module to develop the aerodynamic design of advanced combustor hardware.…
Added 44 mins ago
Core Engineer - Hardware Systems (Multiple Levels)
Edgescale AI
Denver, CO
Building validation, test automation, and manufacturing QA processes that scale across fleets while controlling total cost of ownership.
Added 44 mins ago
Core Engineer - Data Systems (Multiple Levels)
Edgescale AI
Denver, CO
We’re looking for a Core Engineer focused on data systems to build the data and streaming foundations that make our edge platform reliable, observable, and repeatable.
Added 51 mins ago
RU
SDET Automation Engineer
Randstad USA
Washington, DC
- $50 to $58 USD / hour
Randstad is seeking a Senior SDET Automation Engineer to join a premier client in the Washington, DC area to lead the design, development, and scaling of enterprise-grade test automation…
Added 53 mins ago
MT
Senior Security Ransomware Engineer
Medina Talent Group
Remote, United States
- $98,000 to $154,000 USD / year
Coordinate and execute testing for protected applications, including technical recovery validation, dependency mapping, and test result analysis.
Added 55 mins ago
SD
Senior Site Reliability Engineer (Disaster Recovery
SunCore Digital
Scottsdale, AZ · Bellevue, WA
- $145,000 to $200,000 USD / year
SunCore Digital is seeking a hands-on Senior Site Reliability Engineer (Disaster Recoveryr to assess, implement, test, and document service and data recovery capabilities.
Added 55 mins ago
SD
Senior Site Reliability Engineer
SunCore Digital
Remote, United States
- $145,000 to $185,000 USD / year
SunCore Digital is seeking a hands-on Senior Site Reliability Engineer to assess the current reliability and scalability of our systems, identify risks, and implement the technical changes…
Added 55 mins ago
SD
Mobile Test Engineer
SunCore Digital
Scottsdale, AZ · Bellevue, WA
- $135,000 to $155,000 USD / year
SunCore Digital is seeking a Mobile QA Engineer, Flutter to own hands-on testing of our Flutter-based mobile applications across supported Android and iOS devices.
Added 1 hour ago
UI
PNT Software Engineer
Ulysses Inc.
San Francisco, CA
- $180,000 to $260,000 USD / year
Logging, replay, and validation: build logging and deterministic reprocessing of mission data so every dive becomes a regression test, and drive reliability improvements from field results.
Added 1 hour ago
UI
Mechanical Engineer
Ulysses Inc.
San Francisco, CA
- $130,000 to $180,000 USD / year
Founded in 2023 and headquartered in San Francisco, Ulysses has raised $48 million in funding from Andreessen Horowitz, Booz Allen Ventures, Harpoon Ventures, Pebblebed, Lowercarbon…
Added 1 hour ago
UI
Electronics Engineer
Ulysses Inc.
San Francisco, CA
- $135,000 to $180,000 USD / year
Validation and field reliability: create test plans, run environmental and stress testing, debug intermittent failures, and drive reliability improvements based on field data
Added 1 hour ago
GL
QA Automation Engineer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
…multi-agent platform. You’ll work hand-in-hand with PM, FE, BE, AI, and DevOps to embed quality into every phase of the pipeline using Linear (execution), Notion (test cases/playbooks), and…
Added 1 hour ago
GL
Full Stack Developer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $40,000 to $60,000 USD / year
Authentication & Security - Implement Firebase Authentication (Google/GitHub OAuth), JWT validation in API Gateway, and FE session handling.

Gradientflo Labs

Full Stack Developer (Founding Team)

San Francisco, CA, United States

$40,000 to $60,000 USD / year

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Job details

Pay: $40,000 to $60,000 USD / year
Experience: 10+ years full stack experience with both React/Next.js (FE) and Python/FastAPI (BE).
Posting language: English

Original job description

Role Overview You will be the bridge between front-end flow and backend logic at Vibecoderz. One moment you’ll be implementing a Cmd+K command palette with buttery animations, the next you’ll be optimizing a Firestore schema to store 100K concurrent learner sessions. As our founding Full Stack Developer, you’ll own end-to-end delivery of features - from Next.js interfaces and block-based editors to FastAPI microservices and GCP workflows. You’ll ensure the TutorAgent’s intelligence and the Vibe Browser’s actions are experienced by users in real time, reliably and securely. You’ll use Linear for execution, Notion for specs, and GitHub for repos, collaborating with FE, BE, AI, Prompt, DevOps, and QA to ship polished, production-ready features at startup velocity.

Key Responsibilities

End-to-End Feature Delivery - Own user stories from PRD → FE/BE design → shipped feature, ensuring zero gaps between front and back layers.
Frontend Engineering - Build real-time collaborative UIs using Next.js, Tailwind, and shadcn/ui. Implement command palettes, block-based editors, and waveform animations.
Backend Engineering - Architect FastAPI services with async workflows, secure endpoints, and clean Firestore/Neo4j schemas.
Realtime Integration - Connect WebSocket events to FE interfaces, ensuring smooth TutorAgent streaming, live cursors, and collaboration features.
AI Workflows Integration - Expose AI outputs (artifacts, quizzes, code snippets) as APIs, and render them cleanly in the FE workspace.
Data Modeling - Define schemas across Firestore and Neo4j (Developer Graph), ensuring efficient queries and scalable structures.
Authentication & Security - Implement Firebase Authentication (Google/GitHub OAuth), JWT validation in API Gateway, and FE session handling.
Performance Optimization - Keep FE interaction latency <200ms, API p95 <100ms, and ensure SSR + RSC patterns deliver SEO-ready performance.
Testing & Reliability - Write E2E tests (FE + BE), schema validation, and contract tests to ensure regression-free deployments.
Collaboration Across Tools - Manage tasks in Linear, write clear PRDs in Notion, and maintain GitHub repo hygiene.
Problem Solving - Anticipate scaling issues across both FE and BE; propose solutions that balance developer experience and system reliability.

Success Metrics

90 Days (Probation):

Deliver one complete feature end-to-end (Text → Course → Artifact → Certification).
Deploy FastAPI → Cloud Run service with FE integration.
Workspace live with block editing, Cmd+K palette, and one AI-gen flow.

12 Months:

Handle 100K+ MAUs with <100ms p95 API latency and <200ms FE interaction latency.
Achieve feature parity with top-tier SaaS (Linear/Notion-level polish).
Zero Sev1 issues caused by FS-owned code in two consecutive quarters.
Test coverage >85% across FE + BE code.

Must-Haves

10+ years full stack experience with both React/Next.js (FE) and Python/FastAPI (BE).
Proven ability to ship end-to-end features in production SaaS products.
Strong grasp of async I/O, distributed systems, and real-time UIs.
Product company background with evidence of scaling products.
Deep understanding of SSR/CSR hybrids, caching, and API design.

Nice-to-Haves

Experience with Neo4j Graph DB.
Contributions to open-source frameworks (React, Next.js, FastAPI).
Prior work on AI-driven products or multi-agent systems.
Startup/founding engineer experience.

Tech Stack Visibility

Frontend: Next.js (App Router), React, TypeScript, Tailwind CSS, shadcn/ui, Zustand, Lucide icons, Framer Motion
Realtime: WebSockets, OT/CRDT frameworks
Backend: FastAPI, Python Async, Cloud Run, API Gateway
Data: Firestore, Neo4j Aura (Developer Graph), Redis
Workflows: Cloud Tasks, Cloud Workflows
Auth: Firebase Authentication (Google/GitHub OAuth)
CI/CD: GitHub Actions, Docker, Terraform
Observability: OpenTelemetry, Google Cloud Trace
Tools: Linear (execution), Notion (PRDs/specs), GitHub (repos)

Assessment Objective: Validate ability to build and deliver an end-to-end feature across FE + BE.

Challenge (Candidate PoC):

Build a Text → Course flow:
FE: Chat panel where user enters “Teach me React Hooks.”
BE: FastAPI endpoint /generate-course that returns structured course outline.
FE: Render outline as interactive blocks (slide, quiz, code snippet).
Add a Mini-App Sandbox:
FE: Code block with syntax highlighting + “Run” button.
BE: /generate-miniapp endpoint returning runnable JS snippet.
Execute safely in iframe with logs/errors captured.
Background Workflow:
Trigger certificate generation (mock PDF) via Cloud Task.
Fire Firestore trigger → SendGrid transactional email.
Performance:
FE interaction latency <200ms.
BE endpoint p95 <100ms.

Deliverables:

Deployed demo (Vercel + Cloud Run).
GitHub repo with FE + BE modular code.
Firestore schema + example data.
Postman collection for APIs.
5-min Loom walkthrough.

Evaluation Criteria:

Architecture & Code Quality (25%)
FE/BE Integration & UX (25%)
Real-time Performance (20%)
Data Modeling & Workflow Integration (15%)
Documentation & Testing (15%)

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