Backend Engineer Jobs in California

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Java Backend Developer

Randstad - Torc

Remote

Contract

We are looking for a Java Backend Developer to join our team! You will be responsible for designing, developing, and maintaining scalable and high-performance backend systems. If you are passionate about backend development, microservices, and cloud-based applications, this is the right opportunity for you! ResponsibilitiesDesign, develop, and maintain high-performance backend applications using Java.Implement RESTful APIs and integrate with external services.Work with microservices architecture

.Net Backend Lead

Photon

Remote

Contract, Third Party

.Net Backend Lead Developer Remote We are seeking a hands-on Lead Backend Engineer to help build a new Futures Commodity Commissions Market (FCM) platform a greenfield, regulated financial trading product focused on binary sports prediction markets. This is a rare opportunity to shape the architecture and implementation of a federally regulated financial system from the ground up. You'll be responsible for designing and developing core backend services for a compliant, low-latency trading platfo

Principal Platform Engineer, Materia AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Principal Platform Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Principal Platform Engineer, you will lead the design, development, and evolution of our next-generation cloud-native platforms. You will drive technical strategy, foster engineering excellence,

Sr Staff Software Engineer (Copilot)

PaloAlto Networks

Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of

Java Developer

Business Needs Inc.

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,

Data / Reporting Analyst

Vaco by Highspring

Remote

Full-time

Were currently searching for a report developer with outstanding programming skills and a strong analytical mindset to help set our client up for success. Your responsibilities will include creating, testing, documenting, and maintaining new and existing systems for our projects in accordance with needs and specifications. Youll be heavily involved in the conception phase with our department heads to get a feel for the exact requirements and expectations. The ideal candidate will provide accura

Sr Staff Engineer Software (Threat Data Platform)

PaloAlto Networks

Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of

Engineering Manager - Platform

Vaco by Highspring

Remote

Full-time

Engineering Manager - Platform - Developer Experience Ready to be pushed beyond what you think youre capable of? Our mission is to increase economic freedom in the world. Its a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform and with it, the future global financial system. To achieve our mission, were seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and

Lead Software Engineer

PMAA Inc

San Diego, California, USA

Full-time

PMAA Inc is currently seeking a Direct Hire Sr C++ Developer/Programmer for a large client in San Diego, CA with proven experience in LINUX, Embedded programming, and C++ for backend Development. MUST HAVES Very technically sound as a Sr. C++ Developer/Programmer Sr. Developer who has had some leadership or managerial responsibilities C++ for Back-End Dev LINUX SDR - Software Defined Radios - HUGE PLUS Device Drivers -Developed drivers for instruments - HUGE PLUS Would like to have Embedded pro

Lead Java Back End and Angular Developer - C13 - IRVING

Citi

Remote or Irving, Texas, USA

Full-time

The Back End Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities: Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and pro

Senior JavaScript Developer

Randstad - Torc

Remote

Contract

We are looking for a Senior JavaScript Developer to join our dynamic team. As a key contributor, you will be responsible for designing, developing, and maintaining scalable and high-performance web applications. You will work with modern frameworks, APIs, and cloud-based services to deliver top-tier software solutions. ResponsibilitiesDesign, develop, and optimize web applications using JavaScript, TypeScript, and modern frameworks (React, Angular, Vue.js).Build and maintain scalable, reusable,

Software Engineering Technical Lead

Samsung Electronics America

Remote or Los Angeles, California, USA

Full-time

Position Summary Samsung Electronics America's North American Service Business is tasked with building consumer services at a global scale. Driving growth in ad based services, and streaming compelling media to all Samsung screens ( TVs, phones, tablets, web, etc. ). This backend engineer will be architecting, coding, and deploying modules to our existing AWS backend for TV Plus. This individual will also provide technical mentorship and leadership to a backend team and help architect solutions

Senior Cloud Developer (AWS)- Remote (Future Opportunity)

ICF

Remote or Reston, Virginia, USA

Full-time

*We are open to supporting 100% remote work anywhere within the US* * This role is part of our talent pipeline, and while there may not be an immediate opening, we are proactively connecting with qualified candidates for future opportunities* We're seeking a talented Cloud backend developer to join our dynamic team. As a key member of our engineering department, you'll play a pivotal role in designing, developing, and maintaining robust backend applications and services. Responsibilities: Des

.Net Back End - Azure

Kforce Technology Staffing

Remote or Boca Raton, Florida, USA

Third Party, Contract

RESPONSIBILITIES: Kforce has a client seeking a Senior .NET Developer remotely. Key Responsibilities: * Lead the design, development, and deployment of robust backend services using .NET Core/.NET 6+ * Architect and implement distributed, event-driven systems using Dapr for service-to-service communication, pub/sub, and state management * Develop and manage message-based integrations using RabbitMQ, Kafka, or Azure Service Bus * Work extensively with MySQL including stored procedures, schema de

ETL Backend Tester-Enrollment or Claims Insurance-Fully Remote

Elite Technical

Remote

Contract

Absolutely no third parties please Candidates must reside locally in Maryland, Virginia, or Washington DC. Although fully remote, a final face to face interview will be required. There will be occasional onsite office visits Reston VA, roughly once per quarter. Bachelor of Science (BS) is required. Min. 6+ years of experience in an SDET position. In addition to automation, must have knowledge of Backend ETL Testing experience as well. Must have Healthcare Insurance Experience, specifically sup

Agile Delivery Lead (Cyber Security): Charlotte, NC: Hybrid

NodeLogix

Remote or Charlotte, North Carolina, USA

Contract

Pays $60/hr ON W2 Til: 12/2025: Potential extensions W2: EAD 3 DAYS ** Experience leading API development/backend API Developer ** Jira/Confluence; ** Fluent in Agile; ** Lead technologist; ** Execute vision/delivery of vision; ** Strong Product Manager ** Understanding of cyber security centers. ** Demonstrated ability to work on multiple complex projects in a matrixed environment; ** Demonstrated ability to build strong relationships; ** Critical thinking. ** Attention to detail/detail orien

.Net Backend Architect

Photon

Remote

Contract, Third Party

.Net Backend Architect Remote We are seeking a seasoned Backend Architect with deep expertise in regulated financial systems, trading platforms, and end-to-end trading infrastructure to lead the architecture and backend development of a greenfield Futures Commodity Commissions Market (FCM) platform. This product will power a federally regulated sports prediction market, akin to Robinhood s financial trading model, requiring full compliance with CFTC and NFA regulations. You will design, architec

Node.JS Engineer

Spire Systems Inc

Santa Clara, California, USA

Contract

6 months+ Onsite- Santa Clara, CA Backend Engineer- Golang, NodeJS, React Design and develop robust backend services using 1 or 2 years of expertise Golang, NodeJS. Architect both client-side and server-side systems Develop and manage scalable NoSQL or SQL databases and applications. Kubernetes, Dockers Google Cloud Platform/AWS Backend Engineers responsible to develop and design our scalable microservices used to activate all cloud products. We are seeking experienced senior level Software

Software Engineering Technical Leader, Backend Development - Nexus Hyperfabric

Cisco Systems, Inc.

Milpitas, California, USA

Full-time

Please note this posting is to advertise potential job opportunities. This exact role may not be open today, but could open in the near future. When you apply, a Cisco representative may contact you directly if a relevant position opens. Note: This is a hybrid role working on-site a minimum of 3 days a week in the Milpitas, CA office. MEET THE TEAM At the Hyperfabric Engineering Team, we believe that the traditional Data Center deployment and management practices must evolve and modernize to me

UI Angular Developer (AVP) - Hybrid

Citi

Remote or Tampa, Florida, USA

Full-time

The Institutional Data Platform team is responsible for the Olympus platform to streamline data sources across Service, Markets, Banking and Client enabling industry leading analytics, client, regulatory, surveillance supervisory risk and finance reporting and data science solutions along with genesis platform. The UI Angular Developer (Applications Development Senior Programmer Analyst - C12) is an intermediate level position responsible for participation in the establishment and implementatio