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

Fullstack Engineer

Quantum Technologies USA

We are looking for a highly skilled Full-Stack Engineer who can build and maintain production-grade web applications while also designing and implementing AI-powered agents using LangChain and LangGraph .

Responsibilities

  • Design, develop, and maintain full-stack web applications using React (frontend) and Python (backend)
  • Build scalable, secure, and production-ready APIs and backend services
  • Implement AI agents and intelligent workflows using LangChain and LangGraph
  • Integrate LLMs into applications, including tool-calling, memory, and multi-step reasoning
  • Design and implement RAG-based solutions using embeddings and vector databases
  • Orchestrate agent state, control flow, and execution using LangGraph
  • Ensure code quality through testing, code reviews, and best engineering practices
Required Skills
  • Strong experience in React (modern hooks, component design, state management) and Python (FastAPI / Flask / Django)
  • Solid understanding of full-stack architecture , REST APIs, and backend development
  • Hands-on experience with LangChain for LLM application development
  • Hands-on experience with LangGraph for building and orchestrating AI agents
  • Knowledge of RAG architectures , embeddings, and vector databases
  • Proficiency with Git , version control, and collaborative development workflows

QUANTUM TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. QUANTUM TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will QUANTUM TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract

#J-18808-Ljbffr
Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Fullstack Engineer in Sunnyvale, CA vacancy
  • $130k - $160k

     ...for the U.S. Department of Defense. We are looking for an Engineer who will be developing, supporting, maintaining, and evolving...  ...engineering discipline. ~2+ years of experience building intuitive fullstack applications. ~ Solid understanding of TypeScript, ReactJS,... 
    Suggested
    Visa sponsorship

    Kodiak

    Mountain View, CA
    6 days ago
  •  ...Orchestrate agent state, control flow, and execution using LangGraph Ensure code quality throughtesting, code reviews, and best engineering practices Required Skills Strong experience inReact(modern hooks, component design, state management) andPython(FastAPI / Flask /... 
    Suggested
    Permanent employment
    Contract work
    Local area

    Quantum Technologies USA

    Sunnyvale, CA
    3 days ago
  •  ...companies need hundreds of salespeople; we want to see how much we can grow with fewer than ten.We’re hiring for exceptional product engineers who can help build out this vision. We look for people who can ship and iterate quickly, and who are also adept at working with... 
    Suggested
    Work at office
    Home office
    Flexible hours
    3 days per week

    Gridmatic

    Cupertino, CA
    3 days ago
  • $189.3k - $290.7k

    Job DescriptionAbout the role: GM’s simulation team is looking for an experienced staff fullstack engineer to be a key technical leader in our mission to deliver autonomous driving technologies safely. This is a high-impact role where your work directly enables the validation... 
    Suggested
    Full time
    Local area
    Work from home
    Flexible hours

    General Motors

    Sunnyvale, CA
    4 days ago
  • $215k - $300k

     ...eventually people — move around the planet. We are a team of mission-driven engineers with experience across aerospace, robotics and self-driving cars working to make this future a reality.As a Senior Fullstack Software Engineer at Reliable Robotics, you will design, and... 
    Suggested
    Permanent employment
    Casual work

    Reliable Robotics

    Mountain View, CA
    2 days ago
  •  ...Role: FullStack Engineer-UI/Frontend Focus Location: Sunnyvale, CA Onsite Fulltime Permanent Job Description We are looking for a skilled full-stack with focus on Ul. Candidate should be proficient in modern front-end development using backend... 
    Permanent employment
    Full time

    Acestack

    Sunnyvale, CA
    3 days ago
  • Job-ID16807083Reference21-05255Job Description: Front end: Javascript (ES6+) React // most apps are in React AngularJS // Old code is in AngularJS CSS (web page layouts--must be able to construct a page from scratch, not just know how to change font colors) Backend: Spring...

    Intelliswift

    Sunnyvale, CA
    4 days ago
  • Full Stack Developer We are looking for a Full Stack Developer with Salesforce E-Commerce Cloud Integration Background. Experience with Node.JS is Must. Required Overall 8-10 years' experience. Prior experience with Duty/Cosmetic Industry would be preferred. Founded...

    InterSources

    Santa Clara, CA
    4 days ago
  •  ...deploy 750 megawatts of scale, transforming key workloads with ultra high-speed inference.About The RoleWe’re hiring a full-stack engineer to build the critical parts of the Cerebras Developer Console — the primary interface developers and enterprises use to run and manage... 
    Shift work

    Cerebras Systems

    Sunnyvale, CA
    2 days ago
  • Job Title: Full Stack Developer Location: Sunnyvale, CA. Duration:6 Months Experience:8-10 Years Job description: Key requirements Frontend : ReactJS, modern front-end development Backend : Go, Java, or Python APIs : RESTful API development ...

    I-Flow

    Sunnyvale, CA
    5 days ago
  •  ...shipped something that calls an LLM, handles streaming responses, and deals with tool use / function calling. A generic full-stack engineer who has never worked with AI APIs will have a steep ramp on every single product in the portfolio.Streaming UI patterns (SSE,... 
    Work at office
    Remote work
    Flexible hours

    NTT DATA

    Santa Clara, CA
    2 days ago
  • $140k - $200k

     ...favor reuse over duplication, and keep quality and maintainability first-class. Across all of it, we build with AI. We expect senior engineers to use AI tooling fluently across the software development lifecycle, from spec and build through review and test, and to help the... 
    Flexible hours

    LeanData

    Santa Clara, CA
    4 days ago
  • Overview 3MK Software Solutions is the leading software service soltions provider and IT Staffing Supplier company, outsourcing and complex implementation services for the business across different functional areas and technologies with a core focus on software development...
    Immediate start

    3Mkllc-Softwaresolutions

    Sunnyvale, CA
    3 days ago
  •  ...Full Stack Developer (Front-Back End) The Role: Develop and maintain React web applications on AWS. Partner HW Engineers to automate design and simulation flows Basic qualifications: ~ Bachelor's degree in Computer Science, Computer Engineering, Electrical... 

    Omni Inclusive

    Sunnyvale, CA
    12 hours ago
  •  ...of the eCommerce platform micro services and ability to come up with solutions spanning across micro services Work with great Engineers and solve difficult problems aimed at making the Customer experience seamless Manage interactions with internal and external partner... 
    Work at office
    Work from home

    Zortech Solutions

    Mountain View, CA
    4 days ago
  • Job Description Job Description Design, enhance and maintain internal websites, web applications and stand-alone Python applications. Full stack capability is required. You will design and implement both the front-end user interface and back-end application and...

    Intuitive

    Sunnyvale, CA
    3 days ago
  • Job Role - Full stack Developer Location - Sunnyvale, CA Job Description Roles & Responsibilities • Full Stack Developer -Who is responsible to build modern, scalable, and high-performance applications • will work across the entire technology...

    AceStack LLC

    Sunnyvale, CA
    4 days ago
  •  ...Prepares and installs solutions by determining and designing system specifications, standards, and programming. Accomplishes engineering and organization mission by completing related results as needed. Supports software engineers by providing advice and training... 
    Work experience placement
    Local area

    Direct Staffing Inc

    Sunnyvale, CA
    12 hours ago
  •  ...and our recognition as one of IVP Enterprise AI 55 in 2024. Based in Mountain View, we are a team of passionate AI researchers, engineers, and advertising veterans. Join us in reinventing the advertising industry with AI. About this role We're hiring a full-... 
    Full time

    Creatify Lab Inc

    Mountain View, CA
    3 days ago
  •  ...The Role As a founding full stack engineer at Flick, you’ll build the core infrastructure powering AI-native filmmaking — from media generation interface to scalable backend systems. You will work directly with the founders, and have the opportunity to shape the future... 

    Flick

    Sunnyvale, CA
    12 hours ago
  •  ...global scale, come make a difference at Fiserv.Job TitleSr. Front-End/Full Stack DeveloperWhat does a successful Sr. Front-End/Fullstack Engineer do at Clover?In this role, you will be a lead UI/UX-minded engineer responsible for driving the client-side evolution and... 
    Full time
    Work at office
    Worldwide
    Monday to Friday

    Fiserv

    Sunnyvale, CA
    2 days ago
  •  ...clean, maintainable, and testable code following industry best practices. • Collaborate with product managers, designers, and other engineers to deliver high-quality solutions. • Optimize application performance, scalability, and reliability. • Implement automated... 
    Permanent employment
    Full time

    AceStack LLC

    Sunnyvale, CA
    3 days ago
  •  ...being wrong has physical consequences. You will work directly with the Principal Software & Architecture Lead, Product, and Solution Engineering. We move fast, we avoid bureaucracy, and we expect engineers to own outcomes rather than tickets. Why You Would Be a Good... 

    Teserac, Inc.

    Santa Clara, CA
    a month ago
  •  ...solving hard problems, and working with low drama, high output teammates, you will fit here. Role Summary As the Full Stack SW Engineer, you will build the digital backbone of our electrification platform. You’ll develop user-facing applications and backend systems... 
    Full time

    Range Energy

    Mountain View, CA
    a month ago
  • $175k - $200k

     .... One Force. About the Role As Knightscope continues to expand its internal AI capabilities, we are seeking a Full Stack Engineer to own the engineering lifecycle of all GenAI-powered applications built and used by Knightscope employees. This is a hands-on, high... 
    Full time
    Relocation

    Knightscope

    Sunnyvale, CA
    a month ago
  • $185k - $250k

     ...of America the safest country in the world. One Team. One Force. About the Role Knightscope is seeking a Senior Full Stack Engineer to design, build, and own the web platform powering the Signals intelligence platform and the ASR robot software stack across our... 
    Full time
    Relocation

    Knightscope

    Sunnyvale, CA
    a month ago
  •  ...to a sustainable and inclusive AI ecosystem, FlexAI is the place for you ! Role Overview FlexAI is looking for a Senior Full Stack Engineer who can build end-to-end features across our PaaS platform - including frontend UI layers, backend APIs, data models, and... 
    Work at office

    flexai

    Santa Clara, CA
    12 hours ago
  •  ...We are seeking a highly experienced Senior Full Stack Engineer (10+ years) to design, build, and scale modern web applications. The ideal candidate will have strong expertise in Java/Spring Boot backend development and React with TypeScript for frontend development, along... 

    Pinnaclearc

    Mountain View, CA
    3 days ago
  • $84.5 per hour

    Job Title: Full Stack Developer Location: San Jose, CA (Hybrid 3 days) Duration: 07+ Months Possibility of Extension Payrate : $84.50/hr Job Description Develop and maintain full-stack applications using React, NextJS, Java, and Spring Boot. Develop user interfaces in TypeScript...

    Talentify.io

    San Jose, CA
    4 days ago
  • Software Guidance & Assistance, Inc., (SGA) is searching for a Senior Fullstack Engineer for a contract assignment with one of our premier SaaS clients in San Jose, CA. Responsibilities Develop and maintain full-stack applications using React, NextJS, Java, and Spring... 
    Contract work

    Software Guidance & Assistance

    San Jose, CA
    12 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Fullstack Engineer. Be the first to apply!