Backend Engineer Jobs in California

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Senior Backend Engineer

Fiserv

Sunnyvale, California, USA

Full-time

Calling all innovators - find your future at Fiserv. We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a differ

Sr. Backend Engineer

Fiserv

Sunnyvale, California, USA

Full-time

Calling all innovators - find your future at Fiserv. We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a differ

Backend Engineer

Xyant Services, Inc.

San Jose, California, USA

Contract

Job Title: Backend Engineer or DevOps Engineer Location: San Jose, CA - Hybrid What you will do : Analyze product requirements and design to develop efficient, re-usable, reliable and scalable software with quality conformance in an innovative and iteratively growing environment Develop and deploy highly scalable and efficient Cloud native solutions for hybrid cloud Apply and extend CI/CD tools and execute end-2-end ownership of your developed Software stack, including DevOps and testing aspects

Backend Engineer / Rust

Jobot

San Francisco, California, USA

Full-time

Hybrid Remote *Candidates must be commutable distance from San Francisco* / Leading Developer Platform for Zero-Knowledge Applications This Jobot Job is hosted by: Caitlyn Hardy Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $150,000 - $250,000 per year A bit about us: We are a leading developer platform for zero-knowledge applications. We are on the lookout for a passionate and skilled Backend Engineer with a strong command over Rust to j

Sr Cloud-Java Backend Engineer

Ledgent Technology

Irvine, California, USA

Full-time

No Corp-to-corp / No Third-Party Agencies . We're Hiring: Cloud-Java Backend Engineer 100% Onsite in Irvine, CA $150,000 to $190,000 (DOE) plus annual bonus : Full-Time, Direct Hire . Are you excited by the challenge of building scalable, high-performance cloud systems? Do you have a passion for backend development and architecting secure, modern applications? We're partnered with a client who is looking for a Senior Cloud-Java Backend Software Engineer to join the team and play a key role i

Senior Backend Engineer

SUNRAY INFORMATICS

Remote

Contract, Third Party

Role : Senior Backend Engineer Location: Pittsburgh, PA Duration: 12+ Months MOI : Telephonic & Skype Primary Skills: NODE.JS, Google Cloud Platform, TYPESCRIPT, FINANCE Need Candidates with a Minimum of 12 Years of Experience. This is a 100% Remote role. Candidates must have experience with Node.js, OAuth2, Google Cloud Platform, and TypeScript in recent projects. Note: Client Manager is considering a Backend NodeJS Developer with .NET Projects Only. Candidates' roles need to be as a Backend

Backend Engineer

OSI Engineering, Inc.

San Francisco, California, USA

Full-time

Job Title: Founding Backend Engineer Infrastructure for Social Impact | San Francisco, CA Summary: This isn t just about hiring a builder it s about recruiting an engineer ready to co-architect a platform that enables trust, action, and generosity at scale. As the Founding Backend Engineer, you ll design and scale the systems behind a new social impact platform one engineered to support donors, nonprofits, and volunteers around the globe. You ll work directly with mission-driven founders, influe

Backend Engineer (GoLang Developer)

SES

Remote

Full-time

Systems Engineering Services is seeking a Backend engineer with a focus on Golang Development based out of the DMV area. Top 5 Technical Skills: Experience using the following Tech Stacks: Golang; Python; and NodeJS Understanding of cryptography, consensus algorithms, and other core concepts of blockchain technology Familiarity with Private Blockchain as well as Public platforms such as Ethereum, Hyperledger, and/or Corda Top 3 Soft Skills: Outstanding Communications Collaboration Proven ability

Backend engineer (ONLY LOCALS)

ADPMN Inc

San Jose, California, USA

Third Party

Role:: Backend engineer (ONLY LOCALS) Location: San Jose, CA (Hybrid-3 days a week-Tue/Wed/Thu) Duration:: Long Term JobDescription :: Backend : Python with Gen Ai.

Sr Python Backend Engineer

Ledgent Technology

Remote

Full-time

No C2C / No Third-Party Agencies Senior Python Backend Engineer Remote - Must be U.S. based $150,000 -$190,000 (DOE) : Full-Time, Direct Hire . We're hiring on behalf of a fast-growing AI/ML company revolutionizing healthcare staffing and operations. Their cutting-edge platform leverages Generative AI and voice biomarker technology to reduce administrative burdens and improve patient care. What You'll Do: As a Senior Backend Engineer, you'll play a key role in building and scaling Python mi

Golang -Backend Engineer

SES

Remote

Contract

Top 5 Technical Skills: Experience using the following Tech Stacks: Golang; Python; and NodeJS Understanding of cryptography, consensus algorithms, and other core concepts of blockchain technology Familiarity with Private Blockchain as well as Public platforms such as Ethereum, Hyperledger, and/or Corda Top 3 Soft Skills: Outstanding Communications Collaboration Proven ability to work with Vendors and External Partners Job Description: The Backend Engineer is responsible for the development and

Sr. Backend Engineer/Solutions Architect

LogiX-Guru

Remote

Contract

Senior Backend Engineer / Solutions Architect (Node.js | Google Cloud Platform | TypeScript | Finance) Location: Remote Type: Full-time | Contract Client Industry: Financial Technology Key Responsibilities - Design and implement fraud prevention systems using Node.js and TypeScript - Develop and enhance device authentication mechanisms - Build payment intercept systems and fraud detection features - Integrate with Google Cloud Platform services (Spanner, BigQuery, Kubernetes) - Collaborate with

Python Backend Engineer

Calsoft Labs

Remote

Contract

Job Title: Python Backend Engineer Location: 100% Remote Job Description: We are building a next-generation virtual assistant platform that enables natural and responsive voice and chat-based interactions. The platform integrates with internal and external systems to deliver seamless, real-time user experiences at scale.As part of our growing team, we re looking for a skilled Python Backend Engineer to help us build reliable, high-performance backend systems. Role Overview: This role involves d

Senior Backend Engineer AWS Serverless

Accylerate

Remote

Contract

Client: College Board Title: Senior Backend Engineer AWS Serverless Location: 100% Remote Duration: Long Term Profile: They seek a senior to lead-level candidate with SOLID AWS solutions experience and JavaScript coding.This team is the interface with the vendors for scoring feeds and then connects to the program applications.This role is nearly solely focused on back-end microservices coding in all the AWS tech stack, building applications to run here.Job Description: As a Senior Software Engin

Senior Backend Engineer Node.js

Avila IT

Remote

Full-time

Job Description:We are seeking a Senior Backend Engineer with deep expertise in Node.js to architect, develop, and optimize high-performance backend systems. The ideal candidate has strong experience in building scalable microservices, integrating APIs, and working with modern cloud-based infrastructure. Key Responsibilities: Design, develop, and maintain backend services and RESTful APIs using Node.js and associated frameworks (e.g., Express.js, NestJS). Build scalable microservices for high-th

BACKEND ENGINEER/ UI SOLUTION ARCHITECT

SUNRAY INFORMATICS

Remote

Third Party, Contract

Hi Professionals, We have an immediate openings for the below role, If interested please apply. Job Title: BACKEND ENGINEER/ UI SOLUTION ARCHITECT Type :C2CInterview: Telephonic & RemoteJOB RESPONSIBILITIESOVERALL EXPERIENCE 12YRS+ We are seeking a Senior Backend Engineer / Solutions Architect to join our client s innovative engineering team. This role is ideal for a backend specialist with deep expertise in Node.js and TypeScript, who is confident designing scalable backend architectures within

Senior Java Backend Engineer fully remote NODE.JS

Paradigm Infotech

Remote

Contract

Must be located within USA No agency or C2C will NOT be considered and Visa sponsorship is not available nor provided W2 role . Cross-functional Collaboration Partner with frontend, mobile, Salesforce, and DevOps engineers to deliver cohesive, end-to-end solutions. Troubleshoot and resolve complex performance and system issues in distributed cloud environments . Represent the backend team in agile ceremonies and strategic planning discussions. Platform & Process Enhancement Drive improvements

Java Backend Engineer - AVP

Citi

Remote or Tampa, Florida, USA

Full-time

About Citi: Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. As a bank with a brain and a soul, Citi creates economic value that is systemic

Staff Backend Engineer - Device Products

Rippling

San Francisco, California, USA

Full-time

About Rippling Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part of the employee lifecycle in a single system. Take onboarding, for example. With Rippling, you can hire a new employee anywhere in the world and set up their payroll, corporate card, computer, benefits, and even

Senior Java Back End Engineer - Hybrid C12

Citi

Remote or Tampa, Florida, USA

Full-time

The Sr Java Back End Engineer is responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities. Responsibilities: Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implemen