Jobs in the United States

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Support Systems Engineer - NAMER
Ashby
Remote, United States
- $100,000 to $130,000 USD / year
That’s why we’re searching for a Support Systems Engineer to become the long-term owner of our Support systems.
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Senior Backend Engineer
Gaya
Remote, United States
As a Senior Backend Engineer at Gaya, you will be critical in enhancing and scaling our backend systems. You will be responsible for improving our API infrastructures, optimizing core…
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Lead Engineer
Gaya
Remote, United States
As a Lead Engineer at Gaya, you will take on a crucial leadership role in shaping our platform's front-end and back-end architecture. You will be instrumental in driving the development of…
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Backend Engineer
Gaya
Remote, United States
As a Backend Engineer at Gaya, you will work hand-in-hand with our Senior Backend Engineer to build, test, and scale the backend systems powering insurance automation for thousands of…
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AI Software Engineer
Gaya
Remote, United States
We're looking for a software engineer to help build, maintain, and evolve the production services behind those systems. The work is varied by design: AI extraction pipelines, background job…
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Senior Software Engineer (full stack)
IBBX Wireless Energy
United States
Design and implement new features and optimizations in existing systems, maintaining high quality and efficiency.
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Hardware Engineer
IBBX Wireless Energy
United States
IBBX is looking for an Electronics Engineer, to focus on emerging technologies such as Wireless Power Transfer (WPT) and Energy Harvesting (EH). In this role, you will be responsible for…
Added 1 min ago
NI
Senior Systems Engineer
NAVTECH INC
Colorado Springs, CO · Vandenberg AFB, CA
- $101,250 USD / year
NavTech Inc seeks a Senior Systems Engineer for GMD communications infrastructure: requirements and design for sustainment and modernization projects, preliminary/final design reviews,…
Added 1 min ago
NI
Network / Communications Engineer
NAVTECH INC
Colorado Springs, CO · Vandenberg AFB, CA
- $93,750 USD / year
NavTech Inc seeks a Network/Communications Engineer for Tier III support and interoperability of GMD voice, data, and video systems across multiple classification levels - LAN distribution…
Added 2 mins ago
Mechanical Engineer, Production Operations (Starship)
SpaceX
Starbase, TX · Brownsville, TX
OPERATIONS ENGINEER, STARSHIP PRODUCTION (STARBASE)
Added 2 mins ago
Integration Engineer, Heatshield (Starship)
SpaceX
Starbase, TX · Brownsville, TX
…Starship's reentry heatshield and structures. As an integration engineer, you will work very closely with the production team to build, integrate, test, and refurbish heat shield hardware…
Added 2 mins ago
CO
Plant Engineer – Boiler
Connections Outsourcing
New York City, NY
- $75,000 to $108,000 USD / year
We are seeking a Plant Specialist with an Associate of Science or a Plant Engineer with a Bachelor of Science degree in Mechanical or Industrial Engineering, two-unit coal-fired power…
Added 2 mins ago
CO
Lead Software Engineer
Connections Outsourcing
Remote, United States
- $180,000 to $255,000 USD / year
You’ll be a core part of a high-trust team that builds mission-critical systems at breakneck speed. Expect real ownership, end-to-end product impact, and a seat at the architecture table…
Added 2 mins ago
CO
Electrical Supervising Engineer – Nuclear
Connections Outsourcing
Michigan City, IN
- $145,000 to $165,000 USD / year
Equipment specifications include transformers, switchgear, MCCs, UPS/DC, communication systems, digital and process instrumentation and controls system.
Added 2 mins ago
Site Reliability Platform Engineer (SRE)
Luupli
Remote, United States
We’re looking for a Site Reliability Platform Engineer (SRE) to help design, optimise, and scale Luupli’s infrastructure, with a specific focus on our mobile-first platform and Google Cloud…
Added 2 mins ago
AI Engineer - Equity Only
Luupli
Remote, United States
As an AI Engineer at Luupli, you will play a pivotal role in developing intelligent systems and orchestrating agentic workflows that power Luupli’s AI features. Your work will span…
Added 2 mins ago
MT
Site Reliability Engineer
Medina Talent Group
Irvine, CA
- $125,000 to $155,000 USD / year
As a Site Reliability Engineer, you will be immersed in a high-performing and frequently challenged team responsible for the reliability, scalability, and operational excellence of product…
Added 2 mins ago
MT
Lead Engineer
Medina Talent Group
Irvine, CA
- $135,000 to $150,000 USD / year
The Lead Engineer for Enterprise Applications is responsible for driving the design, development, modernization, and lifecycle management of enterprise application portfolios. This role…
Added 2 mins ago
MT
Forward Deployment Engineer- San Diego Hybrid
Medina Talent Group
San Diego, CA
- $155,000 to $200,000 USD / year
8+ years of software engineering experience, including 2+ years building LLM-powered systems (RAG, agents, structured extraction) that run in production, not just prototypes or internal…
Added 2 mins ago
Researcher/Engineer - Low-Latency Networking
Mibura Inc.
Remote, United States
We are looking for a highly motivated and talented researcher/engineer to investigate novel approaches for achieving ultra-low latency in next-generation networks. In this role, you will…
Added 2 mins ago
Network Support Engineer
Mibura Inc.
Remote, United States
Join our team as a Network Support Engineer, where your technical & analytical skills, proactive mindset, and passion for solving complex problems with the internet will come into play.…
Added 2 mins ago
Junior Software Engineer
Mibura Inc.
Mountain View, CA
Join Mibura Inc, a disruptive cloud platform company, as a Junior Software Engineer and help build the next generation of distributed computing infrastructure. We’re looking for individuals…
Added 2 mins ago
Edge Computing Solutions Engineer
Mibura Inc.
CA · Mountain View, CA
We are seeking a highly skilled and experienced Solutions Engineer to join our Edge Computing team. As a Solutions Engineer, you will play a critical role in designing, implementing, and…
Added 3 mins ago
Staff/Senior Software Engineer, CAD App (Full stack)
Motif
Remote, United States
Experience in building and maintaining complex high-performance distributed systems
Added 3 mins ago
Staff/Principal Software Engineer, 3D Modeling
Motif
Remote, United States
Production Rust experience, or depth in another systems language such as C++, with a strong understanding of memory management, concurrency, and performance optimization.

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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