Backend development Jobs in California

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Backend Software Engineer, TikTok - Social User and Relation

TikTok

•

Los Angeles, California, USA

Full-time

Location : Los Angeles Employment Type : Regular Job Code : A210319 Apply to this job Share this listing: Responsibilities TikTok Social team drives significant user engagement and retention wins through fun, innovative, and technically sophisticated products and features. We move fast, with precision, and consistently execute with privacy at the forefront. Some core features and components we build and maintain include User Profile, Story, Inbox, Messaging, Follow, Like, Comment, Tag, et
Posted 60+ days ago | Updated 2 hours ago

Recommendation Platform Backend Engineer(ByteRec Recommendation Infrastructure Graduate -TikTok) - 2025 Start (BS/MS)

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A12855 Apply to this job Share this listing: Responsibilities The recommendation architecture mid-platform team is responsible for the design and development of the recommendation system platform for TikTok and related products, and the team maintains the platform and develops midwares for the system, keeps it consistent. We are looking for talented individuals to join our team in 2025. As a graduate, you will get unparalleled oppor
Posted 60+ days ago | Updated 2 hours ago

Java Developer Lead (Front End and Back End) - 5699075

Accenture LLP

•

Charlotte, North Carolina, USA

Full-time

Accenture Flex offers you the flexibility of local fixed-duration project-based work powered by Accenture, a leading global professional services company. Accenture is consistently recognized on FORTUNE's 100 Best Companies to Work For and Diversity Inc's Top 50 Companies For Diversity lists. As an Accenture Flex employee, you will apply your skills and experience to help drive business transformation for leading organizations and communities. In addition to delivering innovative solutions for
Posted 28 days ago | Updated 2 hours ago

Power App Designer/Developer

Pandit View Software

•

Arkansas, USA

Contract, Third Party

Job Description: Power App Designer/Developer with excellent UX skills Location: Remote Visa: Any Valid USA Work Authorization Duration: Long Term Rate W2 or C2C Position Overview: We are seeking a talented Power App Designer/Developer to join our team. The ideal candidate will possess both front-end and back-end development experience, along with strong UX skills. This role is focused on creating efficient and user-friendly applications that meet the dynamic needs of our business environment.
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Posted 3 days ago

Android Developer with Strong Python

Apton Inc

•

San Jose, California, USA

Part-time

Job Description: We are seeking an experienced Android Developer with strong Python programming skills to join our client team in San Jose, CA. The ideal candidate will work on building and maintaining Android applications while also contributing to backend development and automation using Python. Key Requirements: Proven experience in Android app development (Java/Kotlin) Strong hands-on experience with Python Ability to work onsite 3 days a week in San Jose, CA Strong problem-solving and debug
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Posted 1 day ago | Updated 15 hours ago

Senior Java Developer - Super Hot - Remote Anywhere in USA

Akrivis Solutions

•

Remote

Contract

Our client is actively interviewing candidates at this time. Pls respond asap. Immediate Interviews. **REMOTE** Seeking a highly skilled hands-on Senior Java Developer to join Siemens' Provisioning Systems team. This role will interact with offshore team members and help them solve problems as needed. Ideal Must Haves: 10-15+ years of proven experience in backend development - specifically: Java/J2EE, Spring Boot, Hibernate, Microservices, MongoDB, Spring Data JPA, along with these AWS compone
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Posted 10 days ago | Updated 10 days ago

Sr. Python Developer

International Solutions Group

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Remote

Full-time

About ISG International Solutions Group (ISG) An award-winning IT services company. Our company is based in Herndon, VA with offices in all major cities across the United States. We have been a trusted partner to some of the world s biggest companies for almost 22 years. At ISG we provide high-quality solutions in several areas of IT and build customized solutions for our clients. Here is our open requirement which can be filled immediately. Kindly respond to this requirement with your contact i
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Posted 11 days ago

Full Stack Developer(Java) with Salesforce Developer

Cloudious

•

Newark, California, USA

Full-time, Contract

Looking for Salesforce Developer with Full stack Developer (MongoDB, Reacj.js, Node.js, Java) We seek a highly skilled Full Stack Developer and salesforce developer experience who is comfortable with frontend and backend development The ideal candidate will be responsible for developing and designing frontend web architecture ensuring the responsiveness of applications and working alongside graphic designers for web design features among other duties The Full Stack Developer will be required to
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Posted 4 days ago | Updated 17 hours ago

Node JS Developer

SAR TECH LLC

•

Sunnyvale, California, USA

Contract

HiPFA below requirement and let me know your interested Job title:Node JS Developer Location: Sunnyvale, CA Duration: Contract Job Overview:We are seeking a skilledNode.js Developerto join our dynamic team, focusing on backend development for Walmart's enterprise systems. The ideal candidate will have extensive experience in Node.js, microservices architecture, and cloud platforms, contributing to the development of scalable and efficient applications.Key ResponsibilitiesDesign and develop scala
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Posted 1 day ago | Updated 1 day ago

Gen AI Engineer - Python

HPTech Inc.

•

Remote or Dallas, Texas, USA

Contract

Position Title: Gen AI EngineerDuration: 12+ months with Possible ExtensionLocation: Dallas, TX.Mandatory Qualifications: Strong proficiency in Python. Expertise in FastAPI for backend development. Experience with LangChain and LangGraph Hands-on experience with Retrieval-Augmented Generation (RAG) Proficiency in vector databases (Milvus, FAISS, or similar) Database integration (MongoDB/PostgreSQL, GraphDB) Experience integrating AWS Bedrock modelsDesired Qualifications: Prompt engineering for o
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Posted 39 days ago | Updated 22 hours ago

Senior Java Developer with Magnolia CMS

DATAMAXIS, Inc

•

Michigan, USA

Contract, Third Party

Job Summary: We are seeking a highly skilled Senior Java Developer with expertise in Magnolia CMS to join our dynamic team. The ideal candidate will have strong backend development experience with Core Java and Spring, complemented by modern frontend capabilities and Magnolia content management. You will be responsible for designing, developing, and maintaining scalable web applications using a full stack of technologies. Must-Have Technical Skills: Magnolia CMS: Minimum 3 years of recent, hand
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Posted 11 days ago | Updated 23 hours ago

ArcGIS Full Stack Developer

Creative IT Inc

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Remote

Contract, Third Party

Job Summary: We are seeking Senior Full Stack Developers with strong expertise in Angular 19, Java/Spring Boot, and ESRI ArcGIS. The ideal candidates will possess deep front-end and back-end development experience and must have hands-on knowledge of ESRI ArcGIS tools and APIs. This role is critical in delivering robust, scalable, and map-integrated web applications. Key Responsibilities: Design and develop full stack web applications using Angular 19, Spring Boot, and ArcGIS.Build interactive GI
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Posted 24 days ago

Salesforce Omnistudio Developer

Oloop Technology Solutions

•

Remote or Aurora, Illinois, USA

Contract, Third Party

Job Title: Salesforce Omnistudio Developer Location: Remote Duration : 6 + Months Contract Job Description : Extensive OmniStudio development and delivery experience for both standard and custom form / letter generation Front-end development, including Lightning Web Components, and backend development, including Apex, is beneficial Strong written, verbal communication skills are a necessity and must be comfortable working in a larger team environment (10+ people).
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Posted 3 days ago | Updated 1 day ago

Senior Back End Developer

Confidential Company

•

Remote

Contract

We are an award-winning team of very trusted and respected technologists looking for a senior back end developer to join our team for a 100% remote project. Must have deep expertise in back end development and API development, with solid understanding of Python and interested in working with Python. This is a contract role, paid hourly c2c, and can be 20 hours per week, 30 hours per week, or 40 hours per week. Sound like a fit? Let's talk!
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Posted 60+ days ago | Updated 1 day ago

API & Kafka Automation Engineer (Python Backend)

Nous Infosystems

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Remote

Contract

Job Title: API & Kafka Automation Engineer (Python Backend) NYC - Remote Job Description: We are seeking an Automation Engineer with expertise in API testing, Kafka, and Python backend development. The role involves building automated test frameworks, validating Kafka data streams, and ensuring the performance and reliability of APIs and backend systems. Key Skills: Strong experience in API automation and Kafka (producers/consumers).Proficient in Python for scripting and backend logic.Hands-on w
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Posted 8 days ago

Java Full-stack Developer

Connvertex Technologies Inc.

•

Remote or Salt Lake City, Utah, USA

Full-time, Contract

Experience Level: 6-8 Years (10 openings) Job Summary: We are seeking a skilled Java Developer with a strong background in backend development and a solid understanding of frontend technologies. The role will focus approximately 60% on backend services and 40% on frontend UI development. You will work closely with cross-functional teams to build scalable, high-performing applications. Key Responsibilities: Backend (60%): Design, develop, and maintain robust, scalable backend services using Jav
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Posted 50 days ago | Updated 16 hours ago

Python Developer

Alliance IT

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San Jose, California, USA

Contract

Job Title: Python Developer Location: Bay Area, CA Onsite, F2F Required Job Description: We are looking for a skilled Python Developer with hands-on experience in MongoDB to join our development team. The ideal candidate should have strong backend development skills and be comfortable working in an agile environment. Key Responsibilities: Develop and maintain backend services using Python.Design and manage MongoDB databases, queries, and schema.Collaborate with front-end developers and other te
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Posted 16 days ago | Updated 16 days ago

Node.js Developer

BayOne Solutions

•

Sunnyvale, California, USA

Contract

Hi, Job Title: Node.js Developer Location: Sunnyvale, CA(Hybrid) Duration: Contract to Hire role Job Description: Design, develop, and maintain server-side logic and backend services using Node.js.Build and maintain robust and performant GraphQL APIs.Collaborate with front-end engineers, product managers, and QA teams to deliver features end to end.Write high-quality, maintainable code and participate in code reviews.Ensure performance, security, scalability, and reliability of backend services
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Posted 8 days ago

Ruby on Rails Developer

TekVivid

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Remote

Contract, Third Party

Overview: We are looking for a highly motivated and experienced Ruby on Rails Developer to join our development team. You will be responsible for building and maintaining robust, scalable web applications. The ideal candidate has strong backend development skills and a passion for clean, maintainable code. Responsibilities: Design, build, and maintain efficient, reusable, and reliable Ruby code using the Ruby on Rails framework.Develop new features and improve existing ones.Collaborate with prod
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Posted 2 days ago

Java Fullstack + AI Engineer

Photon

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Remote

Full-time

Greetings From Photon, We hope you are doing good. We are hiring a Java Fullstack + AI Engineer to join our Digital Engineering team. Who are we? For the past 20 years, we have powered many Digital Experiences for the Fortune 500. Since 1999, we have grown from a few people to more than 4000 team members across the globe that are engaged in various Digital Modernization. For a brief 1 minute video about us, you can check . What will you do? What are we looking for? Job Title: Java Full Stack En
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Posted 13 hours ago