Back-End Developer Jobs in California

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Android Automotive Backend Software Engineer

U.S. Tech Solutions Inc.

•

Mountain View, California, USA

Contract

Job Description: Our team develops the embedded software deployed into vehicles to support these new perception-based navigation features, along with some of the cloud infrastructure to support them.We have a few exciting first-of-their-kind product launches this year and are working towards these strategic targets. Responsibilities: Implement key components of our in-vehicle APK and cloud infrastructure.Actively contribute to the team s effort to debug and improve performance as we approach pro
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Posted 1 day ago

Micro Frontend Developer

SSTech LLC

•

Remote

Contract

Tile: Micro Fronter End Developer Location: Dallas, TX(Remote) Duration: Long-term Key skills and qualification Frontend Blazor WASM and Blazor Server, HTML5, CSS3, JavaScript, JQuery Backend C#, Restful Services, Postgres Database Key Responsibilities: Design and implement micro front-end architecture: Create and define the structure for splitting a large front-end into independently deployable modules that can evolve autonomously utilizing Microsoft technologies such as Blazor WASM and Blazor
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Posted 3 days ago

Sr. Java Backend Developer

Caspex Corporation

•

Sunnyvale, California, USA

Third Party, Contract

Job Title: Sr. Java Backend Developer Location: Sunnyvale, CA Duration: 6+ Months Job Description: Must have: Deep understanding of core java concepts. ( lambdas, multi threading, executor service etc )Ability to write highly structured ( read good at object oriented programming ), high performance java codeGood understanding of Java Memory Model and Garbage collection conceptsAbility to troubleshoot JVM issues and tune JVM for extracting max performanceFamiliarity with SQL concepts (joins, norm
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Posted 60+ days ago | Updated 4 days ago

Senior Node Engineer / AI startup / Onsite in SF

Motion Recruitment Partners, LLC

•

San Francisco, California, USA

Full-time

Our client is currently searching for a Senior Backend Engineer to join their team onsite in their San Francisco office. This is a software company specializing in secure AI-driven account access and control software supporting data migrations, payroll and e-commerce. As a Senior Backend Engineer, you will be architecting and scaling up their enterprise data migration platform using TypeScript and Nodejs. The ideal candidate is excited about working with a startup and eager to jump into the AI s
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Posted 43 days ago | Updated 7 hours ago

Sr. ETL Backend Automation Tester - ONLY W2

nTech Solutions

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Remote or Herndon, Virginia, USA

Contract

ONLY W2ONLY W2ONLY W2 Candidates based in a commutable distance to Reston, VA will be prioritized. Title: Sr. Backend Test Engineer Location: Reston, VA 20191 Duration: 9 Months Contract + Extension Job Description: Terms of Employment Contract, 9 MonthsThis position is remote. Candidates must be based in Eastern or Central time zones. Candidates based in a commutable distance to Reston, VA will be prioritized.Candidates must be comfortable traveling to Reston, VA roughly once per quarter for PI
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Posted 3 days ago | Updated 1 day ago

Backend Python Engineer (REMOTE)(No C2C/H1B)

NetSource, Inc.

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Remote

Contract

No C2C/H1B Remote, preference in the LA area to come into the occasional in person meetings. Please note that this is a 4-month contract position. Tech Stack / Tools: Python (NumPy, Pandas, SciPy) SQL (PostgreSQL or MySQL preferred) Github Jupyter notebook Experience with production systems and deployment environments Requirements: 3+ years of experience in backend development using Python in a production environment. Must know be proficient in NumPy, Pandas, SciPy, and Object-Oriented Progra
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Posted 12 days ago | Updated 1 day ago

Backend Python Engineer (HYBRID)(No C2C/H1B)

NetSource, Inc.

•

Los Angeles, California, USA

Contract

No C2C/H1B Only local candidates need to apply. Hybrid, preference in the LA area to come into the occasional in person meetings. Please note that this is a 4-month contract position. Tech Stack / Tools: Python (NumPy, Pandas, SciPy) SQL (PostgreSQL or MySQL preferred) Github Jupyter notebook Experience with production systems and deployment environments Requirements: 3+ years of experience in backend development using Python in a production environment. Must know be proficient in NumPy, Pandas
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Posted 12 days ago | Updated 1 day ago

Core Java and SQL / Remote / Construction Planning Software

Motion Recruitment Partners, LLC

•

Remote or Boston, Massachusetts, USA

Full-time

Join a small, agile team building a highly scalable, cloud-based backend powering complex data-driven web applications. This is a great opportunity for a backend engineer with strong Java and SQL expertise who thrives in a startup-like environment and enjoys tackling performance-heavy challenges. This is an opportunity to work side-by-side with the Chief Software Architect on a lean team driving architecture and core functionality. You'll be writing highly concurrent Java code and building syste
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Posted 5 days ago | Updated 7 hours ago

Senior Artificial Intelligence Test Engineer

iSpace, Inc

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Remote

Contract

Senior Artificial Intelligence Test Engineer Location: Hybrid of 3 days/month onsite during the 2 nd full week of each month in either Denver, CO/Brentwood, TN/Malvern, PA or 100% remote with travel 2-3 times/year (if remote) Duration - 3 6-month Contract to Hire Opportunity Working Hours Mon-Fri, from 8AM 5PM EST This is an exciting opportunity to join a new team that will be supporting the testing efforts for AI products within an industry leading healthcare organization. This team will be s
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Posted 40 days ago | Updated 2 days ago

Prefilled - Sr. Java Backend

Randstad Digital

•

Sunnyvale, California, USA

Contract

job summary: 10+ years of experience in the design and development of highly scalable distributed applications and platforms - particularly for multi-tenant, SaaS products. - Having proficiency in Java/J2EE, Microservices, and Cloud Native Architecture. - Hands-on experience in Microservices, and RESTful web services development in Java SpringBoot, Spring Kafka or equivalent framework). - Good knowledge of messaging systems: Kafka / RabbitMQ. - In-depth knowledge of Cloud Native Architectur
Posted 2 days ago | Updated 2 hours ago

System Administration - Collaboration Engineer II Collaboration Engineer II

ACL Digital

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California, USA

Full-time

Job Description: IMPORTANT TO KNOW: 1. Remote, preference in the LA area to come into the occasional in person meetings; virtual candidates will also be considered. 2. Resource will be paid as a W-2 employee by the staffing supplier. 3. Staffing suppliers - please do not contact the hiring manager directly. Only suppliers in scope of the CWM program can submit candidates for this position. Job Title: Python Backend Engineer (Contract) About the Role: We are looking for a highly skilled Py
Posted 7 days ago | Updated 11 hours ago

Senior Backend Software Engineer, TikTok MultiMedia Data Platform

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A246238 Apply to this job Share this listing: Responsibilities About the Team Our team's mission is to scalable, reliable, complicant and valuable data products to power the next generation player development, multimedia domain experience optimization and cost saving. We are looking for seasoned backend software engineers that have strong problem solving skills and coding skills to build and manage scalable, reliable systems. You wi
Posted 1 day ago | Updated 11 hours ago

Backend Software Engineer, TikTok MultiMedia Data Platform

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A101859 Apply to this job Share this listing: Responsibilities About the Team Our team's mission is to scalable, reliable, complicant and valuable data products to power the next generation player development, multimedia domain experience optimization and cost saving. We are looking for seasoned backend software engineers that have strong problem solving skills and coding skills to build and manage scalable, reliable systems. You wi
Posted 1 day ago | Updated 11 hours ago

Backend Software Engineer, Global Ads Demonstration

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A139625A Apply to this job Share this listing: Responsibilities CommercePack team is responsible for connecting commercialization with the user community ecosystem. We provide data assembly and management for the display and interaction of advertisements, and promote a sustainable development ecosystem for advertising content.Our aim is to provide a unified platform for end-to-end commercial presentations and marketing data interact
Posted 1 day ago | Updated 11 hours ago

Java Developer

Business Needs Inc.

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Diamond Bar, California, USA

Contract

Location : Wilmington, DE (onsite 3 days a week) Duration 12-24mth + Must have: 5+ years Backend Java development MS messaging ex Kafka Spring Integration exp Banking exp LinkedIn page We are seeking a skilled Mid-Tier to Backend Java Developer to join our dynamic team. The ideal candidate will have 4 5 years of experience in core Java and Spring, with a strong background in backend development and integration. This role involves working on a platform responsible for installation and updates,
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Posted 19 days ago | Updated 5 hours ago

.NET Architect (.net framework, Full stack backend , Web development)

SigmaWay

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Los Angeles, California, USA

Contract

Apply by Email/Direct Application at Role: .NET Architect Duration: 6 months (possible extension) Interview Process: 2 Video Interviews Client Location: Woodland Hills, CA Work Status: or It will be hybrid 3 times a week on0site and 32 days remote. If the candidate is asking for 1 or 2 times a week, that could work as well. Job Description Management experience - might stair step into managing multiple peopleConsulting on how to build out teams - with offshore/onshoreVery task oriented/Good comm
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Posted 10 days ago | Updated 10 days ago

Sr. Node Engineer, Event-driven Architecture

Motion Recruitment Partners, LLC

•

Irvine, California, USA

Full-time

Our client is redefining how creators and users connect on social platforms-blending content, community, and commerce into a next-gen digital experience. Their team is building scalable, event-driven backend systems that power seamless interactions across mobile and web apps. As they grow, they're looking for backend engineers who thrive in fast-paced, startup environments and are passionate about building resilient, distributed systems. If you're excited by the challenge of supporting real-time
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Posted 32 days ago | Updated 7 hours ago

Senior Backend Software Engineer, Global Ads Demonstration

TikTok

•

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A52727 Apply to this job Share this listing: Responsibilities CommercePack team is responsible for connecting commercialization with the user community ecosystem. We provide data assembly and management for the display and interaction of advertisements, and promote a sustainable development ecosystem for advertising content.Our aim is to provide a unified platform for end-to-end commercial presentations and marketing data interactio
Posted 1 day ago | Updated 11 hours ago

Backend Node Engineer, Hybrid in West Los Angeles

Motion Recruitment Partners, LLC

•

Los Angeles, California, USA

Full-time

This is a hybrid position based in West Los Angeles, CA. Our client is building the future of online shopping, creating an intuitive and engaging experience that connects customers with the products they love. Their team is focused on crafting high-performance mobile and web applications that make browsing, buying, and checkout effortless. As they scale, they are looking for engineers who thrive in fast-paced environments. If you're passionate about building sleek, scalable applications and want
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Posted 15 days ago | Updated 7 hours ago

Senior Software Engineer - UberEats Order Platform

Uber Corporate

•

San Francisco, California, USA

Full-time

About the Role You will be joining the UberEats Order Platform Team. This team supports mainly 3 tracks - Keeping standards for existing platforms to run the business, supporting core products that need changes at the platform level, and writing the Next-Gen order platform that could spawn new delivery verticals quickly, is maintainable, and scalable. What You'll Do As a Backend Engineer in the Order Platform Team at Uber and being part of Grocery/Consumer Fulfillment org, you'll be working o
Posted 58 days ago | Updated 11 hours ago