Back End Engineer Jobs in San Francisco, CA

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Senior Backend Engineer, Python (Costa Rica)

Launch Potato

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Remote

Full-time

WHO ARE WE? Launch Potato is a digital media company with a portfolio of brands and technologies. As The Discovery and Conversion Company, Launch Potato is a leading connector of advertisers to customers at all parts of the consumer journey, from awareness to consideration to purchase. The company is headquartered in vibrant downtown Delray Beach, Florida, with a unique international team across over a dozen countries. Launch Potato's success comes from a diverse, energetic culture and high-pe
Posted 6 days ago | Updated 5 hours ago

Staff Back End Engineer (MTS 2)

eBay Inc.

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Remote or Portland, Oregon, USA

Full-time

At eBay, we're more than a global ecommerce leader - we're changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We're committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts. Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work - every day. We're in this together, sustaining the futur
Posted 24 days ago | Updated 5 hours ago

Internship, Backend Software Engineer, Diagnostics (Fall 2025)

Tesla Motors

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Remote or Palo Alto, California, USA

Full-time

Consider before submitting an application: This position is expected to start around August or September 2025 and continue through the Fall term (ending approximately December 2025) or continuing into Winter/Spring 2026 if available and there is an opportunity to do so. We ask for a minimum of 12 weeks, full-time and on-site, for most internships. Our internship program is for students who are actively enrolled in an academic program. entry level candidates seeking employment after graduation a
Posted 24 days ago | Updated 5 hours ago

Backend Software Engineer, ML

Bayside Solutions

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Remote

Contract

Backend Software Engineer, ML W2 Contract Salary Range: $135,200 - $156,000 per year Location: Remote Role - PST Job Summary: As a Backend Software Engineer, you will work with the engineering team, EPM, and customers to support customer migration to next-generation services that generate, manage, and consume datasets, features, and embeddings used for ML training. You will utilize tooling to migrate data and work with customers to change their Python clients to start using the new SDK. Thi
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Posted 18 days ago | Updated 2 hours ago

Senior Java Backend Engineer - VP

Citi

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Remote or Tampa, Florida, USA

Full-time

Citi's Functions Technology is responsible for delivering Technology solutions to Citi's Functions organizations. Functions Technology mission is to optimize Citi's Technology environment by delivering world class applications, driving standardization of the production environment, reducing complexity, optimizing management of systems supporting global functions such as Compliance, Controls, Internal Audit and Risk, and introducing innovative technologies that provide new business capabilities,
Posted 35 days ago | Updated 5 hours ago

AI Backend Leaning Full Stack Engineer / Palo Alto

Motion Recruitment Partners, LLC

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Palo Alto, California, USA

Full-time

A well-funded AI FinTech startup in Palo Alto is revolutionizing financial services by integrating cutting-edge AI technologies. With a lean, high-impact team of six, they offer an exciting opportunity for engineers who thrive in fast-paced, early-stage environments. Backed with funding through 2026 and preparing for another capital raise this year, they are poised for significant growth. They are currently seeking a Senior Backend Leaning Full-Stack Engineer to work on their flagship product, b
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Posted 60+ days ago | Updated 2 hours ago

Lead Python Backend Engineer - Danburry,CT - Remote with client visits - Fulltime

Cyber Sphere LLC

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Remote

Full-time, Third Party

Lead Python Backend Engineer Remote with Occasional Visits to Danbury, CT Interview Mode: In person We re looking for a Lead Backend Engineer to drive backend development, optimize data infrastructure, and support critical integrations across our ecosystem. You ll play a pivotal role in modernizing our backend architecture to ensure scalability, reliability, and efficiency, while leading transformative initiatives such as: Enhancing CRM and subscription management systems to improve customer en
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Posted 6 days ago | Updated 2 days ago

Principal Software Engineer (Backend), Communication

Roblox

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San Mateo, California, USA

Full-time

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences- all created by our global community of developers and creators. At Roblox, we're building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device.We're on a mission to connect a billion people with op
Posted 60+ days ago | Updated 5 hours ago

Lead Java Backend Engineer - Vice President - Tampa FL

Citi

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Remote or Tampa, Florida, USA

Full-time

The overall objective of this role is to drive applications systems analysis and programming activities. Responsibilities: Manage one or more Applications Development teams to accomplish established goals as well as conduct personnel duties for team (e.g. performance evaluations, hiring and disciplinary actions)Utilize in-depth knowledge and skills across multiple Applications Development areas to provide technical oversight across systems and applicationsReview and analyze proposed technical s
Posted 28 days ago | Updated 5 hours ago

Checking in- (100% remote considered) Are you interested in a Senior Software Engineer, Backend opportunity to work with a company focused on metabolic health

VortexLink

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Remote or Mountain View, California, USA

Full-time

Senior Software Engineer, Backend Full Time position-Office located in Mountain View, CA (100% remote considered) We are looking for a Senior Backend Engineer to join our team and play a key role in developing integrations with third-party scheduling systems, and clinical tools to support our clinical operations teams. Responsibilities Develop, optimize, and maintain backend services using Spring Boot, REST APIs, and SQL databases. Architect and build scalable integrations with third-party sys
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Posted 42 days ago | Updated 1 day ago

Backend/Platform Software Engineer

PsiQuantum

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Palo Alto, California, USA

Full-time

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint. By harnes
Posted 54 days ago | Updated 5 hours ago

Software Engineer - Backend

Snowflake Inc.

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Menlo Park, California, USA

Full-time

Build the future of the AI Data Cloud. Join the Snowflake team. We're at the forefront of the data revolution, committed to building the world's greatest data and applications platform. Snowflake started with a clear vision: develop a cloud data platform that is effective, affordable, and accessible to all data users. Data Cloud allows sharing live data in governed and secure ways so our customers can solve their business problems. Data Cloud allows sharing live data in governed and secure way
Posted 60+ days ago | Updated 5 hours ago

Staff Backend Engineer, Media Foundation

Airbnb

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Remote

Full-time

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: Media - images & videos, are critical to the success of Airbnb as it enables guests to make informed bookin
Posted 60+ days ago | Updated 5 hours ago

Backend Software Engineer, Machine Learning Platform, AI Infrastructure

Tesla Motors

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Palo Alto, California, USA

Full-time

As a Software Engineer within the Autopilot AI Infrastructure team, you will work on reinforcing, optimizing, and scaling our infrastructure components supporting AI research activities for Autopilot and the Optimus. At the core of our autonomy capabilities are neural networks that the research team is designing to train on very large amounts of data, across large-scale GPU clusters and our supercomputer Dojo. Robustly training these models at scale and in the shortest amount of time is critica
Posted 60+ days ago | Updated 5 hours ago

Applied Machine Learning Backend Engineer (L5), Monitoring & Alerting

Netflix, Inc.

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Remote

Full-time

Netflix is one of the world's leading entertainment services, with 283 million paid memberships in over 190 countries enjoying TV series, films and games across a wide variety of genres and languages. Members can play, pause and resume watching as much as they want, anytime, anywhere, and can change their plans at any time. The Observability Team provides a platform and suite of products that enable Netflix engineers to monitor service behavior in real time, detect system health anomalies, and
Posted 60+ days ago | Updated 5 hours 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 6 days ago | Updated 3 days ago

Sr. Back-End Software Engineer

DRC Systems USA LLC

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Remote

Contract

Overview of Project: THE LFRM 2.0 PROJECT AIMS TO MODERNIZE HOW FREIGHT RATES ARE CALCULATED, MANAGED, AND VALIDATED ACROSS OUR ORGANIZATION. THIS INITIATIVE INVOLVES DEVELOPING A SCALABLE PLATFORM ON NEWER INFRASTRUCTURE COMPONENTS AND TECHNOLOGIES, REPLACING CURRENT MANUAL PROCESSES WITH AUTOMATED SOLUTIONS.Required Skills & Experience: 5+ years of experience in back-end development, with a strong focus on database development. Proficiency in Python, Java, Node.js and related frameworks. Exten
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Posted 6 days ago

Mid-Level Info Security Engineer-Back End Developer

USAA

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Remote or San Antonio, Texas, USA

Full-time

Why USAA? At USAA, our mission is to empower our members to achieve financial security through highly competitive products, exceptional service and trusted advice. We seek to be the #1 choice for the military community and their families. Embrace a fulfilling career at USAA, where our core values - honesty, integrity, loyalty and service - define how we treat each other and our members. Be part of what truly makes us special and impactful. The Opportunity As a dedicated Mid-Level Info Securi
Posted 18 hours ago | Updated 5 hours ago

Backend Engineer - Core Technology

Stripe

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Remote or Seattle, Washington, USA

Full-time

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies-from the world's largest enterprises to the most ambitious startups-use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important w
Posted 60+ days ago | Updated 5 hours ago

Backend JAVA Engineer (REMOTE- EST Timezone)(No C2C/H1B)

NetSource, Inc.

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Remote

Contract

No C2C/H1B Java backend development experience is a must; all others will be rejected. Network programming techniques (SMP, TCP/IP, Sockets) is a must. Please note that this is a 6-month contract position with possibility to extend. A coding exercise to validate technical skills will be on the 1st interview with client.Remote Work Considerations: While we prefer candidates to work onsite, we are open to remote candidates as long as they can commit to core working hours in US Eastern Time.Locati
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Posted 4 days ago | Updated 3 days ago