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
Senior Mechanical Engineer
Fabri
Billerica, MA
As Principal Systems Engineer, you will own the design, development, and deployment of Fabri’s core manufacturing equipment. You will operate bidirectionally with process engineering:…
Added 1 min ago
Principal Systems Engineer
Fabri
Boston, MA
As Principal Systems Engineer, you will own the design, development, and deployment of Fabri’s core manufacturing equipment. You will operate bidirectionally with process engineering:…
Added 4 mins ago
Backend Software Engineer ($10,000) - Washington, DC
Jobs Xchange
Washington, DC
A strong command of coding, problem-solving, design principles, system health, diagnosis and resolution, and software test development.
Added 4 mins ago
Senior Software Quality Engineer
Abbott Laboratories
Sylmar, CA
This position is responsible for software quality, compliance, and design assurance activities associated with cloud-based medical device applications and supporting infrastructure. This…
Added 5 mins ago
UI
Subsea Acoustics Engineer
Ulysses Inc.
San Francisco, CA
- $145,000 to $190,000 USD / year
Ulysses is the ocean company. We design, manufacture, and operate autonomous vehicles for surface and subsea operations - taking on the most critical tasks across defense, commercial, and…
Added 5 mins ago
UI
Software Engineer
Ulysses Inc.
San Francisco, CA
- $180,000 to $260,000 USD / year
As a Software Engineer at Ulysses, you will own core aspects of the software platform that powers our fleet of autonomous underwater robots - the systems that make them reliable,…
Added 5 mins ago
UI
PNT Software Engineer
Ulysses Inc.
San Francisco, CA
- $180,000 to $260,000 USD / year
Ulysses is the ocean company. We design, manufacture, and operate autonomous vehicles for surface and subsea operations - taking on the most critical tasks across defense, commercial, and…
Added 5 mins ago
UI
Mechanical Engineer
Ulysses Inc.
San Francisco, CA
- $130,000 to $180,000 USD / year
Ulysses is the ocean company. We design, manufacture, and operate autonomous vehicles for surface and subsea operations - taking on the most critical tasks across defense, commercial, and…
Added 5 mins ago
UI
Manufacturing Design Engineer
Ulysses Inc.
San Francisco, CA
- $130,000 to $180,000 USD / year
Ulysses is the ocean company. We design, manufacture, and operate autonomous vehicles for surface and subsea operations - taking on the most critical tasks across defense, commercial, and…
Added 5 mins ago
UI
Machinist
Ulysses Inc.
San Francisco, CA
- $85,000 to $120,000 USD / year
Design and build your own workholding and fixturing: for one-oﬀs and for repeatable production
Added 5 mins ago
UI
Embedded Systems Engineer
Ulysses Inc.
San Francisco, CA
- $140,000 to $180,000 USD / year
Ulysses is the ocean company. We design, manufacture, and operate autonomous vehicles for surface and subsea operations - taking on the most critical tasks across defense, commercial, and…
Added 5 mins ago
UI
Electronics Engineer
Ulysses Inc.
San Francisco, CA
- $135,000 to $180,000 USD / year
Ulysses is the ocean company. We design, manufacture, and operate autonomous vehicles for surface and subsea operations - taking on the most critical tasks across defense, commercial, and…
Added 5 mins ago
GL
QA Automation Engineer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
As the founding QA Automation Engineer, you’ll design frameworks that validate not just code but also AI outputs. From traditional E2E flows to specialized agent evaluation pipelines,…
Added 5 mins ago
GL
Prompt Engineer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
…think as clearly as the prompts that guide them - and you will design those “thought patterns.” As the founding Prompt Engineer, you’ll build a prompt library and evaluation system that…
Added 5 mins ago
GL
Full Stack Developer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $40,000 to $60,000 USD / year
End-to-End Feature Delivery - Own user stories from PRD → FE/BE design → shipped feature, ensuring zero gaps between front and back layers.
Added 5 mins ago
GL
DevOps Engineer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
As the founding DevOps engineer, you will design our CI/CD pipelines, observability stack, infra-as-code, and security posture from day zero. You’ll ensure that when a developer ships code,…
Added 5 mins ago
GL
Chief Technology Officer (Tech - Founding Pillar)
Gradientflo Labs
San Francisco, CA
- $40,000 to $60,000 USD / year
From low-level system design (Firestore schemas, Pub/Sub orchestration, Redis caches, Neo4j Developer Graph) to pixel-perfect UX outcomes (latency budgets, real-time TutorAgent flows, Vibe…
Added 5 mins ago
GL
Backend Developer (Founding Team)
Gradientflo Labs
San Francisco, CA
- $32,000 to $40,000 USD / year
…schemas to FastAPI microservices and background workflows, you’ll design and build the backbone that powers Superficient Learning for developers…
Added 5 mins ago
GL
AI Engineer (Founding Engineer – AI)
Gradientflo Labs
San Francisco, CA
- $24,000 to $32,000 USD / year
You will be the intelligence architect of Vibecoderz. As the AI Engineer, you’ll design, implement, and optimize the multi-agent orchestration system that powers the TutorAgent,…
Added 7 mins ago
Site Reliability Engineer Internship
Metasys
Remote, United States
The Site Reliability Engineer (SRE) is responsible for the ultimate stability, performance, and scalability of our entire integrated supply chain e-commerce platform. You will apply…
Added 7 mins ago
Frontend Engineer Internship
Metasys
Remote, United States
Design System & Accessibility: Implement components using Tailwind CSS and Radix UI to ensure visual consistency, performance, and adherence to WCAG accessibility standards.
Added 7 mins ago
DevOps Engineer Internship
Metasys
Remote, United States
The DevOps Engineer is responsible for automating, streamlining, and maintaining the infrastructure and deployment pipelines for our entire integrated platform. You'll ensure rapid,…
Added 7 mins ago
Backend Engineer Internship
Metasys
Remote, United States
Performance & Reliability: Implement effective caching strategies using Redis to boost API performance. Design and implement asynchronous processing and event-driven workflows to ensure…
Added 7 mins ago
HPC Engineer/Architect
Comspark group
New York, NY
Linux Operating Systems (RHEL/CentOS), Parallel file system (GPFS), Job Scheduler LSF/Slrm

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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