Jobs in the United States

25+ jobs

Save this search

Added just now
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 just now
SD
Senior Site Reliability Engineer
SunCore Digital
Remote, United States
- $145,000 to $185,000 USD / year
Work with the Disaster Recovery and Resilience Engineer on service and data recovery dependencies.
Added just now
SD
Senior Security Operations Engineer
SunCore Digital
Remote, United States
- $165,000 to $205,000 USD / year
SunCore Digital is seeking a hands-on Senior Security Operations Engineer to assess and improve the security of our applications, cloud environments, development practices, identities,…
Added just now
SD
Principal Engineer
SunCore Digital
Scottsdale, AZ
- $200,000 to $260,000 USD / year
We are looking for a Principal Engineer to own the architecture of our platform and lead it through its next stage. This is one role with three responsibilities in sequence. First, a…
Added just now
SD
Mobile Test Engineer
SunCore Digital
Scottsdale, AZ · Bellevue, WA
- $135,000 to $155,000 USD / year
● Coordinate with the Web and Backend QA Engineer on shared services and data.
Added just now
TS
Principal/Staff HPC Network Engineer
The San Francisco Compute Company
San Francisco, CA
- $250,000 to $325,000 USD / year
…and was forced to sublease it or go under. Today, we build data centers, supercomputers, and then lease those machines on contracts that let our customers sublease. More than anyone else in…
Added 1 min ago
Neural Electrode or Interface Fabrication and Characterization Engineer
Cahira Technologies
Boston, MA
We're hiring an engineer with strong background in designing, nano-fabricating and characterizing electrode/interface for neural electrical stimulation. Expertise in micro/nano-fabrication…
Added 1 min ago
In vitro neural recording expert
Cahira Technologies
Boston, MA
We are seeking a neuroscientist or neural engineer with strong in vitro neural recording expertise. Hands-on expertise in performing in vitro electrical recordings from cultured neurons…
Added 1 min ago
AI/Machine Learning Engineer, Neuro-AI
Cahira Technologies
Boston, MA
Are you an exceptional AI/ML Engineer with a passion for transforming human capabilities and treating neurological diseases? Join Cahira Technologies, a groundbreaking neurotech startup…
Added 1 min ago
Senior Test Automation Engineer
HJ Staffing
Houston, TX
Our client’s Testing Automation Team is hiring a Senior Test Automation Engineer to help build and scale the automated testing backbone that keeps their software releases fast, stable, and…
Added 1 min ago
Software Engineer, Robotics
Deccan AI
San Francisco, CA
Software Engineer, Robotics & VLA Systems Mountain View, CA · Full-Time · Physical AI Team
Added 1 min ago
DA
ML Engineer - Robotics
Deccan AI
Mountain View, CA
- $160,000 to $320,000 USD / year
We’re looking for an ML Engineer – Robotics to design, train, and deploy intelligent models that power autonomous systems. You’ll work at the intersection of machine learning, control…
Added 1 min ago
DA
ML Engineer - Demand Geneneration / Research / Engineering
Deccan AI
Mountain View, CA
- $160,000 to $320,000 USD / year
We are looking for an ML Engineer – Demand Generation / Research / Engineering to build intelligent systems that leverage machine learning, data science, and AI to drive business growth and…
Added 1 min ago
DA
Founding Engineer - ML Research
Deccan AI
Mountain View, CA
- $160,000 to $320,000 USD / year
We’re looking for a Founding ML Research Engineer to help build and scale our AI research backbone from the ground up. This role sits at the intersection of applied machine learning and…
Added 1 min ago
Founding Engineer - Machine Learning
Deccan AI
Mountain View, CA
We’re looking for a Founding ML Engineer to build and scale core machine learning systems from the ground up. This is a hands-on role for someone who can move fast between experimentation…
Added 2 mins 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 2 mins ago
Civil Engineer (Aviation)
Community Talent Partners
Cockeysville, MD
We are seeking a motivated Aviation Civil Engineer who is ready to take on increasing responsibilities in the design and management of landside civil engineering projects supporting…
Added 2 mins 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 2 mins 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 2 mins 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 2 mins 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 2 mins ago
F
Operations Engineer
Fabri
Billerica, MA
- $120,000 to $130,000 USD / year
Fabri is seeking a hands-on Operations Engineer to join our fast-growing foundry team.
Added 3 mins ago
TW
AI Marketing Project Manager
Together We Talent
Remote, United States
- $50 to $60 USD / hour
This is not an AI Engineer or AI Developer position. The Project Manager will serve as the critical bridge between Marketing business owners and AI development teams, translating marketing…
Added 3 mins ago
Software Engineer, XR Developer
Aether
Remote, United States
We're looking for a sharp, ambitious Frontend Engineer with strong CAD / 3D skills to take ownership of key parts of our in-browser solar configurator - a Three.js-powered design engine…
Added 3 mins ago
Software Engineer, Three.js
Aether
Remote, United States
We're looking for a sharp, ambitious Frontend Engineer with strong CAD / 3D skills to take ownership of key parts of our in-browser solar configurator - a Three.js-powered design engine…

Gradientflo Labs

Backend Developer (Founding Team)

San Francisco, CA, United States

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

Apply About employer

Applications open in a new tab.

Job details

Pay: $32,000 to $40,000 USD / year
Experience: 10+ years backend engineering experience (Python, REST/async).
Posting language: English

Original job description

Role Overview You will own Vibecoderz’ engine room. Every interaction the TutorAgent orchestrates, every artifact generated, every certification issued - it all runs through your services. From Firestore schemas to FastAPI microservices and background workflows, you’ll design and build the backbone that powers Superficient Learning for developers worldwide. This role goes beyond writing APIs - you will define system contracts, data models, and scalability patterns that allow Vibecoderz to serve 100K+ concurrent learners with sub-100ms latency. You’ll work in lockstep with FE, AI, Prompt, and DevOps to ensure the platform’s foundation is secure, performant, and future-proof. You’ll use Linear for sprints, Notion for PRDs, and GitHub for repos, collaborating across the team to make backend decisions visible, reproducible, and accountable.

Key Responsibilities

Service Architecture & APIs - Design, build, and maintain FastAPI microservices with clean modular boundaries.
Data Modeling & Schemas - Define Firestore schemas for users, courses, artifacts, results, and certifications. Manage Neo4j Developer Graph integration.
Asynchronous Workflows - Implement Cloud Tasks + Cloud Workflows for long-running jobs (certificate generation, artifact rendering, learner graph updates).
Commercial Layer - Integrate Stripe (subscriptions) and SendGrid (transactional email) via Firebase extensions. Ensure compliance with billing and audit standards.
Performance & Scale - Optimize services for high throughput with async I/O. Achieve <100ms API response time under load.
API Gateway & Security - Expose services through GCP API Gateway with JWT verification, rate limiting, and role-based access.
CI/CD Pipelines - Collaborate with DevOps to maintain GitHub Actions pipelines for automated testing, containerization, and deployment to Cloud Run.
Testing & Reliability - Write integration tests, contract tests, and load tests. Ensure regression-free releases.
Monitoring & Observability - Instrument services with OpenTelemetry for distributed tracing, logging, and metrics. Ensure failures are detectable and recoverable.
Cross-Team Collaboration - Work closely with PM to refine PRDs in Notion, track sprint execution in Linear, and align with AI/FE on contract stability.
Problem Solving - Anticipate bottlenecks (data modeling, latency, scaling) and propose architectural solutions.

Success Metrics

90 Days (Probation):

Deploy FastAPI → Cloud Run service with API Gateway routing.
Ship Firestore schema for Developer Graph (MVP).
Integrate Stripe test billing and SendGrid notifications.

12 Months:

Scale backend to handle 100K+ concurrent learners.
Maintain 99.9% uptime with zero Sev1 backend-originated outages.
Optimize p95 API response time <100ms under production load.
CI/CD coverage >90% with automated regression tests.

Must-Haves

10+ years backend engineering experience (Python, REST/async).
Deep expertise in distributed systems, scalable APIs, and async I/O.
Hands-on GCP experience (Cloud Run, Firestore, Pub/Sub, API Gateway).
Proven delivery of high-scale backend systems in product companies.

Nice-to-Haves

Experience with Neo4j Graph DB.
Prior work on AI product integrations (LLM orchestration, eval pipelines).
Knowledge of Pub/Sub patterns for agentic systems.
Startup or founding engineer background.

Tech Stack Visibility

Core Services: FastAPI, Python Async, Google Cloud Run
Routing & Security: Google Cloud API Gateway, Firebase Auth
Data: Firestore, Neo4j Aura (Developer Graph), Redis
Workflows: Cloud Tasks, Cloud Workflows
Commercial: Stripe (Firebase Extension), SendGrid (Firebase Extension)
CI/CD: GitHub Actions, Docker
Observability: OpenTelemetry, Google Cloud Trace
Tools: Linear (execution), Notion (PRDs), GitHub (repos)

Assessment Objective: Validate ability to build scalable FastAPI backend services with async workflows and integrations.

Challenge (Candidate PoC):

Build a FastAPI backend powering an AI Tutor mock system with:

/generate-course endpoint → Input: “Teach me React Hooks.” Output: structured course outline (JSON).
/generate-artifact endpoint → Generates quiz or slide deck JSON artifact.
/generate-miniapp endpoint → Returns runnable JS snippet.
Store all results in Firestore (schemas for userId, courseId, artifactId).
Trigger Cloud Task for certificate generation (mock PDF).
Fire Firestore trigger → Send transactional email via SendGrid extension.
Secure endpoints with Firebase JWT verification through API Gateway.

Deliverables:

FastAPI app deployed on Cloud Run.
Firestore schema + example populated data.
Postman collection for API requests.
GitHub repo with modular code + CI pipeline.
Short Loom walkthrough demo.

Evaluation Criteria:

Service Architecture & Code Quality (30%)
Data Modeling & Schema Design (20%)
Async Workflow & Cloud Task Integration (20%)
API Security & Performance (15%)
Documentation & Testing (15%)

Apply About employer

Report this job