Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Back End Developer (United States)

Part-time

Gadriel.AI

About Gadriel

Gadriel is the AI System Assurance company. AI is now writing code, making decisions, and running inside production systems, and most teams can't prove any of it works before it ships. We validate what AI writes, what AI does, and what it's deployed into, before release. Our founders have 25 years in enterprise cybersecurity and hold three USPTO patents. We're building the validation layer that teams will need for every AI system they deploy.

The role

We're hiring a Backend Engineer to build the core validation engines and services behind our products. You'll work on deterministic, reproducible validation: the same input gives the same result every time. This is systems work, not prompt wrangling.

What you'll do

  • Design and build backend services and analysis engines that validate AI-generated code and AI system behavior
  • Implement validation techniques that are mathematically grounded and reproducible, not LLM-as-judge
  • Build high-throughput, reliable pipelines that run locally, in CI/CD, and in customer environments
  • Integrate with AI coding tools, agent frameworks, and enterprise systems
  • Own services end to end, from design through production
  • Work directly with the founders and shape the architecture

What we're looking for

  • Strong backend engineering skills in Python, Go, or C++ . Deep in one is enough; we don't need all three.
  • Solid fundamentals: distributed systems, APIs, concurrency, performance, testing
  • A working understanding of AI concepts: LLMs, agents, RAG, embeddings, and how these systems fail
  • Comfort reading and reasoning about code you didn't write
  • Ownership. You ship, you measure, you fix.

Nice to have

  • Experience with static analysis, security tooling, or developer tools
  • Familiarity with agent protocols such as MCP
  • Background in applied math, statistics, or information theory
  • Experience in a startup or early-stage environment

Why Gadriel

  • Real technical depth in a new category
  • Founder-led team with enterprise credibility and patented IP
  • Fully remote
  • Early-team ownership and influence
  • Compensation: [range] + [equity]

To apply

Use apply feature from LinkedIn

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Back End Developer (United States) in United States vacancy
  •  ...We're seeking a SFCC Backend Developer who will be responsible for designing and implementing...  ...OR GREEN CARD HOLDERS WHO RESIDE IN THE UNITED STATES. Must Have SFCC PWA and SFRA...  ...functional teams to design, develop and support end-to-end eCommerce capabilities in... 
    Suggested
    Full time

    The Connors Group

    United States
    1 day ago
  •  ...Backend Software Engineer (Tech Lead) Full-Time | Remote - United States About Effodio Founded by industry veterans from Google...  ...Partner with engineering leadership and product managers to design, develop, and implement new features and platform enhancements. Ensure... 
    Suggested
    Full time
    Remote work
    Visa sponsorship
    Work visa

    Effodio, Inc.

    United States
    1 day ago
  • $165k - $225k

     ...Engineer – Client Integrations Location : Remote – United States Company Stage of Funding : Venture-Backed Growth-Stage Company Salary : $165,000–$225,000...  ..., customer-facing technical problems, and owning reliable production systems end-to-end.... 
    Suggested
    Full time
    Remote work

    Recruiting from Scratch

    United States
    1 day ago
  • $125.7k - $203.1k

     ...Cisco's products and platforms. You will work end-to-end on everything from APIs and backend...  ...receive grants of Cisco restricted stock units, which vest following continued employment...  ...ranges for this position, by specific state, are listed below:New York City Metro Area... 
    Suggested
    Full time
    Temporary work
    Work experience placement
    Local area
    Flexible hours

    CISCO Systems

    San Jose, CA
    4 days ago
  • $150k - $180k

     ...grow. About the Role: We are looking for a Senior Backend Developer with deep Magento / Adobe Commerce expertise and practical experience...  ...Engineering and this position is a remote role based in the United States. Key Responsibilities: Own backend development from design... 
    Suggested
    Remote job
    For contractors
    Work experience placement
    Flexible hours

    Nutrafol

    New York, NY
    6 days ago
  • $2,000 - $2,500 per month

     ...Candidates based in Latin America, India, or the United States are welcome to apply. Compensation: $...  ...needed.  What you'll do Own end-to-end software architecture and...  ...applications, and machine-learning pipelines Develop and maintain device-to-cloud data... 
    Part time
    For contractors
    Remote work
    Flexible hours

    Spade

    United States
    1 day ago
  • $155k - $190k

     ...Job Title: Senior Full Stack Developer (React / TypeScript / Python) Location : Remote (United States) Department : Engineering Employment Type: Full-Time Experience Level: Senior Level (5+ years) About the Role Inner Logic is building the computational... 
    Full time
    Live in
    Remote work
    Visa sponsorship
    Work visa
    Flexible hours

    Inner Logic

    United States
    1 day ago
  •  ...the technical and architectural vision for a core team that develops software for our core freight movement operations, as well as...  ...experience The Company recruits for positions located in the United States and does not market employment opportunities to individuals... 
    Full time
    Remote work

    brk tech, A Berkshire Hathaway Group Company

    United States
    1 day ago
  •  ...different applications in Wealth Management Engineering by designing, developing, testing, and support. Implement and recommend software...  ...TypeScript and CSS ~ Application development using TDD Practices like unit testing and Behavior/Feature testing ~ Experience writing... 
    Full time

    Xoriant

    United States
    1 day ago
  •  ...of Autonomous Operations - Full-Stack Developer, primarily supporting an automated guided...  ...improvements, and carry work from back-end design through front-end implementation...  ...authorization to work permanently in the United States for any employer without requiring visa... 
    Visa sponsorship
    Flexible hours
    2 days per week
    3 days per week

    Georgia-Pacific

    Atlanta, GA
    4 days ago
  •  ...class technology experiences. Key Responsibilities: Design, develop, test, and debug components for distributed systems that operate...  ...scalability, availability, and security Develop and maintain unit and integration tests, achieving robust code and functional... 
    Full time

    Edge Search formerly Alpha Search Advisors

    United States
    1 day ago
  • $175k - $200k

     ...Lead Full Stack Developer Salary $175,000-$200,000 100% Remote from the continental US...  ...excluding the Pacific Time Zone and New York state This role is for a sophisticated...  ...developer ~ Authorized to work in the United States and no visa sponsorship required.... 
    Full time
    Work experience placement
    Remote work
    Visa sponsorship

    MapLarge

    United States
    1 day ago
  •  ...Job Title: Sr. Fullstack Developer Location: Remote (United States) Employment Type: Full-Time Annual Compensation: 80k-100k About the Opportunity We are seeking a Fullstack Developer to design, develop, and maintain scalable enterprise applications while... 
    Full time
    Remote work

    AspiringIT

    United States
    1 day ago
  • $120k - $160k

     ...Development with Angul ar-Design, develop, and maintain responsive,...  ...Integrati on-Integrate front-end applications with RESTful APIs...  ...adhering to best practices for state management, routing, security,...  ...on-Develop and maintain unit, integration, and end-to-end tests... 
    Full time

    RE Partners

    United States
    1 day ago
  •  ...Intern (paid) GoQuant Technologies Inc About Us GoQuant develops solutions that make life easier and more profitable for...  ...languages and cutting-edge technologies. Contribute to front-end and back-end development, including WebSocket applications, real-time data... 
    Full time
    Internship

    GoQuant

    United States
    1 day ago
  •  ...within minutes, with a free option available to begin. Role Description This is a full-time, on-site Engineer role based in the United States. The Engineer will design, build, and maintain core product features that power Origami’s lead discovery, data enrichment, and... 
    Full time
    Remote work

    Origami

    United States
    1 day ago
  •  ...We are an early-stage, founder-led, venture-backed team scaling now. The Role We are looking for a Full Stack Developer who can own and evolve the interface layer of...  ...architecture decisions: component structure, state management, testing strategy, and CI/CD pipeline... 
    Full time
    Local area

    Sunthetics

    United States
    1 day ago
  • $40 per hour

     ...'re looking for a Senior Full Stack Developer to an own an application end-to-end and set the technical direction...  ...reference implementations. Push back when a request will cause problems,...  ...hooks, and a clear point of view on state management. TypeScript: You design... 
    Full time
    Contract work
    Part time
    Remote work

    Raborn Media

    United States
    1 day ago
  • $225k - $300k

     ...Full Stack Engineer, AI Platform - NEW YORK  - UNITED STATES Salary Details: $225k-$300k Base + Substantial Bonus...  .... If you are a strong full-stack engineer looking to develop your career in AI, please submit your CV for consideration.... 
    Full time
    Visa sponsorship
    Relocation package
    New York, NY
    21 days ago
  •  ...Time - Founding Software Engineer Must be located in the United States.  Must be a Citizen of the United States SideKix...  ...exceptional user experiences. You’ll play a critical role in developing and scaling our Flutter applications across Android and Web,... 
    Full time
    Remote work

    SideKix HQ Inc.

    United States
    1 day ago
  • $150k - $190k

     ...Momentum is a software platform we are developing to achieve that goal by changing the...  ...-focused, but the product is the unit of work, and front-end and deployment will be required. You...  ...Location and arrangement United States-based and a United States citizen.... 
    Full time
    Remote work
    Trial period

    DMC Technologies

    United States
    1 day ago
  •  ...vision, and accident insurance domains. We offer a comprehensive, end-to-end platform for providers and payers, aiming to empower our...  ...US and our Bengaluru engineering hub. Location: Remote (United States) Responsibilities : Feature Development: Implement,... 
    Part time
    Internship
    Remote work

    LightSpun

    United States
    1 day ago
  •  ...Vulnerability detection, prioritization and automated remediation Developing scalable security guardrails for engineering teams...  ...security ownership Security product engineering Remote – United States Full-time Senior and Staff-level opportunities... 
    Full time
    Remote work

    Colossus Technologies Group

    United States
    1 day ago
  •  ...Technology. Help Define What's Next in AI. Location: Remote | United States Employment: Full-Time | Founding Engineering Team...  ...We're partnering with an ambitious AI technology startup developing a next-generation platform that transforms complex business processes... 
    Full time
    Immediate start
    Remote work

    Recruits Lab

    United States
    1 day ago
  •  ...Software Engineer (Entry-Level) United States (Onsite / Hybrid / Remote Opportunities) Full-Time Experience: 0–3 Years About...  ...engineers, DevOps teams, and business stakeholders to design, develop, test, and deploy high-quality software products that power business... 
    Full time
    Remote work

    Webologix Ltd/ INC

    United States
    20 hours ago
  • $140k - $180k

     ...Senior Software Engineer, Integrations Location: Remote (United States) Company Stage: Early-Stage / Profitable Healthcare Infrastructure...  ...systems, operational tools, and enterprise data sources Develop scalable backend systems and data pipelines that transform and... 
    Part time
    Work at office
    Remote work
    Flexible hours

    Recruiting from Scratch

    United States
    1 day ago
  •  .../Android Native) Responsibilities 1. Develop native enterprise IM app (iOS/Android)....  ...network), monitoring. 5. Coding standards, unit testing, problem-solving. 6. Good...  ...Sick Leave (in accordance with applicable state and local laws) 4. 402(k) Plan The Company... 
    Full time
    Local area
    Remote work

    Temu

    United States
    1 day ago
  •  ...TelyRx Holdings Inc. (TSX: TELY) is a publicly traded direct to consumer telehealth pharmacy platform serving patients across 48 U.S. states, plus the District of Columbia and Puerto Rico. We dispense FDA-approved medications for everyday acute and chronic conditions... 
    Full time
    Work at office
    Local area
    Flexible hours

    TelyRx

    United States
    1 day ago
  •  ...entrepreneurial Full-Stack Web Application Developer who takes pride in exceptional...  ...This role will own both the  front-end user experience and the  back-end application architecture , ensuring...  ...libraries, and creating appropriate unit and integration tests. The ideal... 
    Part time
    Remote work
    Flexible hours

    Kruse Consulting Services

    United States
    1 day ago
  • $164.2k - $229.9k

     ...job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible...  ...base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function... 
    Remote job
    For contractors
    Work experience placement
    Flexible hours

    Reddit

    New York, NY
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Back End Developer (United States). Be the first to apply!