Backend Software Engineering Intern jobs in San Jose – Browse 645 openings on RoboApply Jobs

Backend Software Engineering Intern jobs in San Jose

Open roles matching “Backend Software Engineering Intern” with location signals for San Jose. 645 active listings on RoboApply Jobs.

645 jobs found

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Internship|Remote|San Jose Office (HQ)

Join Tessera Labs as a Backend Software Engineering Intern and be part of a pioneering team that is transforming enterprise AI automation. Our cutting-edge technologies streamline complex workflows across major platforms like SAP, Salesforce, and Workday, leading the charge in operational efficiency.As an intern, you will gain hands-on experience developing robust backend systems in a collaborative startup environment. You’ll work under the guidance of seasoned engineers to create APIs, enhance data pipelines, and integrate AI functionalities.

Apr 8, 2026
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companyRoku, Inc. logo
Full-time|$275K/yr - $300K/yr|On-site|San Jose, California

Teamwork makes the stream work. Join Roku to Revolutionize TV StreamingRoku is the leading TV streaming platform across the U.S., Canada, and Mexico, with aspirations to power every television globally. As pioneers in streaming technology, our mission is to connect the entire TV ecosystem, linking consumers with the content they cherish, empowering content publishers to cultivate and monetize vast audiences, and offering advertisers unique opportunities for consumer engagement.From your first day, your contributions at Roku will be significant and highly valued. As a rapidly growing public company, we foster an environment where everyone plays an active role. Here, you will have the chance to delight millions of global TV streamers while gaining invaluable experience across diverse fields. About the RoleWe are on the lookout for a highly experienced Senior Backend Engineer to join the Roku APPS team, helping to shape our extensive consumer-focused platform. In this role, you will design, build, and manage highly available and scalable distributed services utilized by millions of devices worldwide. Collaborating closely with Product and Design teams, you will drive features from concept to production while mentoring fellow engineers and influencing architectural decisions across the platform.This position is perfect for a self-motivated individual who excels in solving complex challenges at scale, possesses a strong operational mindset, and enjoys a blend of hands-on engineering and strategic influence. You will work on challenging distributed systems, champion best practices, and ensure our platform remains reliable, performant, and innovative. About the TeamThe Roku APPS team comprises a talented group of technologists dedicated to developing innovative platform products and services that empower the Roku ecosystem for over 100 million users and streaming devices. We focus on pivotal device services—including setup, configuration, software updates, and smart home integration—to guarantee seamless experiences across millions of devices.In alignment with Roku’s broader mission to lead the streaming industry, our team architects and implements scalable, reliable services that support the Roku platform and enrich how users discover and interact with content. We thrive on tackling complex technical challenges, delivering impactful features, and shaping the future of connected entertainment.

Mar 5, 2026
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companyAizen logo
Full-time|On-site|San Jose Office

Join Aizen as a Backend Software Engineer!At Aizen, we are dedicated to simplifying and amplifying the power of artificial intelligence. Our comprehensive platform effectively manages the entire AI workflow—from data ingestion and orchestration to model training, deployment, and monitoring—allowing businesses to concentrate on what truly matters: developing and scaling exceptional AI solutions without unnecessary complications.We established Aizen out of frustration with cumbersome AI processes and fragmented solutions that obstruct AI implementation. Today, we empower a diverse range of clients—from innovative startups to Fortune 500 giants—to effortlessly scale their AI capabilities. By transforming how AI is created, deployed, and overseen, we are making AI more accessible and impactful than ever. If you are passionate about designing innovative technology, addressing real-world challenges, and collaborating with a top-tier engineering team, we would be thrilled to connect with you.About Our TeamAizen's founders are a group of seasoned entrepreneurs with extensive backgrounds in data storage, distributed systems, and real-time AI architecture. With a proven track record of building and scaling technology companies—some of which achieved successful exits over $1 billion—our team possesses the insight necessary to develop a leading product and organization. We have carefully crafted Aizen to streamline the AI pipeline, enhance performance, and make AI genuinely accessible to enterprises of all sizes.Your RoleAs a Backend Engineer at Aizen, you will play a pivotal role in constructing and optimizing the infrastructure that drives our all-encompassing AI platform. You will design scalable backend services, APIs, and data processing pipelines that facilitate smooth AI deployment and real-time inference. Whether you are a junior engineer eager to learn or a seasoned professional ready to design high-performance distributed systems, this role presents an exciting opportunity to work on cutting-edge AI infrastructure, enhance backend efficiencies, and shape the future of enterprise AI.Key ResponsibilitiesBackend & API Development – Create and refine scalable backend services and high-performance APIs to support real-time AI applications, model inference, and data orchestration.Data Processing & Infrastructure – Develop and enhance large-scale data pipelines, ETL processes, and storage solutions, ensuring seamless integration between AI workflows and backend systems.System Performance & Reliability – Establish monitoring, logging, and incident response frameworks to maintain high availability and performance standards across systems.

Feb 25, 2025
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companyWeRide logo
Full-time|On-site|San Jose, CA

Founded in 2017, WeRide (NASDAQ: WRD) stands at the forefront of autonomous driving technology, advancing from Level 2 to Level 4 solutions. As the sole tech company globally holding driverless permits in China, the UAE, Singapore, and the United States, WeRide conducts pioneering autonomous R&D, tests, and operations across more than 30 cities in 10 countries. With over 2,200 days of experience operating a self-driving fleet, WeRide is redefining the future of mobility.WeRide.ai is in search of exceptional Backend/Infrastructure Software Engineers who are passionate about transforming mobility through innovative AI and robotics solutions. This is a full-time position for experienced professionals who excel in building scalable infrastructure from the ground up. We value top-tier coders and creative problem solvers who are ready to take on the industry's most challenging problems.

May 2, 2020
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company
Full-time|On-site|San Jose Office (HQ)

At Tessera Labs, we are at the forefront of transforming business process automation through innovative AI technology. Supported by Foundation Capital and guided by an exceptional founding team, we are establishing a dynamic engineering group dedicated to integrating AI-powered automation into the enterprise landscape.Our advanced multi-agent AI systems are designed to revolutionize intricate business workflows—removing inefficiencies, enhancing operational performance, and facilitating seamless integration with platforms such as SAP, Salesforce, and Workday. We operate swiftly, tackle complex challenges, and develop on the cutting edge of AI.About the RoleWe are seeking a Mid-Level Backend Engineer who thrives in a high-energy, ownership-driven startup atmosphere. In this role, you will design, construct, and maintain the backend systems that drive Tessera's AI automation platform, including scalable APIs, data pipelines, and integrations with enterprise systems.This hands-on position is perfect for individuals who enjoy building distributed systems, addressing intricate backend issues, and engaging in architectural discussions within a collaborative, fast-paced team.Key ResponsibilitiesCore DevelopmentDesign, develop, and maintain RESTful APIs and backend services utilizing Python (FastAPI, SQLAlchemy).Create reliable microservices that enhance data processing, automation, and AI system integrations.Implement and refine database schemas, queries, and caching strategies to optimize performance and scalability.Contribute to the development of data pipelines and synchronization services across enterprise integrations.AI & Systems IntegrationLink backend services with AI model servers, vector databases, and automation workflows.Facilitate smooth data exchanges between AI agents and enterprise systems including Salesforce, SAP, and Workday.Scalability & ReliabilityDiagnose and resolve performance bottlenecks in backend code and databases.Implement caching, monitoring, and logging to guarantee system reliability and observability.Collaborate with DevOps teams to deploy and sustain cloud-based services on AWS or GCP.Security & QualityEstablish secure authentication and authorization protocols (OAuth2, RBAC, SSO).Adhere to best practices for coding, testing, and maintaining high-quality software.

Dec 20, 2025
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company
Internship|Remote|San Jose Office (HQ)

About Tessera Labs: We are pioneering the way businesses integrate and implement Artificial Intelligence solutions. Supported by Foundation Capital and a team of renowned experts, we specialize in creating multi-agent AI systems designed to automate intricate business processes across various platforms including SAP, Salesforce, Workday, Snowflake, and MuleSoft among others. Our mission is to provide genuine AI automation for enterprises, ensuring speed, accuracy, and measurable impact. We thrive in a fast-paced environment, taking ownership of our projects and pushing the boundaries of applied AI.Location: San Jose, CA or RemoteDuration: 10–12 weeksHours: Maximum of 40 hours per weekStart Date: June 2026Job Summary: We are seeking a motivated Frontend Software Engineering Intern who is eager to learn and contribute within a dynamic startup environment. In this hands-on position, you will collaborate closely with our engineering team to enhance the user experience from concept through deployment. You will design UI components, develop interactive dashboards, and create data visualizations that directly influence user engagement. If you thrive on overcoming UI challenges, delivering polished interfaces, and learning in a supportive team environment, this internship presents an exceptional opportunity to gain practical experience.Key Responsibilities:Assist in the development of UI components, dashboards, and data visualizations.Help maintain and enhance reusable component libraries.Support the implementation of client-side state management and user interactions.Contribute to the creation of intuitive user interfaces for internal tools, AI models, and data workflows.Collaborate with the engineering team to improve usability and performance.Learn to identify and resolve performance bottlenecks in frontend systems.Take initiative on smaller projects and features under the guidance of senior engineers.Learning Opportunities:Gain hands-on experience with React, TypeScript, and modern frontend frameworks.Understand scalable UI design patterns and component libraries.Work on real-world challenges in data visualization, dashboards, and interactive interfaces.

Apr 8, 2026
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companyKognitos logo
Internship|On-site|San Jose - HQ

About the Internship Kognitos is hiring Software Engineer Interns (AI-Native) for Summer 2026 at our San Jose headquarters. This program is designed for students eager to build real products with AI at the core, not just use AI tools. Interns will work on meaningful projects, contribute production-ready code, and help shape our engineering practices alongside experienced professionals. What You'll Do Work closely with engineers to design, build, and launch new features from concept to deployment. Use AI-native tools like Claude and Cursor to streamline and improve development workflows. Write clean, well-documented code that follows industry best practices. Participate in code reviews and technical discussions to refine solutions. Troubleshoot issues and help optimize system performance. Contribute to projects involving AI, automation, and data systems. Experiment, iterate, and collaborate in a team-focused setting. Who We're Looking For Currently enrolled in a Computer Science or related degree program, or have equivalent experience. Solid grasp of programming fundamentals (Python, JavaScript, or similar languages). Comfortable with modern development tools and workflows. Experience using Git and collaborative coding practices. Understanding of core computer science concepts like data structures and algorithms. Strong problem-solving skills and a willingness to learn. Clear communicator who works well in a team. Preferred Qualifications Experience with AI coding tools such as Claude Code, Cursor, or Copilot. Hands-on work with LLMs, APIs, or automation workflows. Familiarity with web technologies like React or Node.js. Exposure to cloud platforms (AWS, GCP, Azure). Previous internships, especially at startups, or substantial personal project experience. Final Note Interested candidates are encouraged to apply even if not every qualification is met.

Apr 16, 2026
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companyTENEX logo
Internship|On-site|San Jose, CA

Company Overview:TENEX is a pioneering provider of Managed Detection and Response (MDR) services, built on an AI-first and automation-driven foundation. We empower organizations to bolster their cybersecurity measures through sophisticated threat detection, swift response capabilities, and ongoing protection. Our team consists of industry veterans with extensive expertise in cybersecurity, automation, and AI-based solutions.As a rapidly growing startup, supported by industry leaders and esteemed investor Andreessen Horowitz, we offer a unique opportunity to join our team at an early stage. As an integral member of our small yet well-funded group, you will significantly influence our culture and growth. We are on the fast track to revolutionizing the cybersecurity arena and are actively seeking top-notch talent to join our mission.We are in search of a highly motivated and adaptable Full Stack Engineer Intern to become a part of our core engineering team. We appreciate individuals who are proactive, enjoy tackling challenges, and are eager to grow and learn in a dynamic environment.At TENEX.AI, we place a strong emphasis on our culture—explore our culture deck at culture.tenex.ai to see how we value collaboration and the unique community fostered through in-person work.

Nov 21, 2025
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companyRoku, Inc. logo
Full-time|$250K/yr - $280K/yr|On-site|San Jose, California

Role Overview: Senior Product Software Engineer – Viewer Experience Roku, Inc. is searching for a Senior Backend Engineer to join the APPS team in San Jose, California. This group plays a central role in building and maintaining the distributed services that power Roku’s streaming platform, used by millions of devices worldwide. What You Will Do Design, develop, and maintain highly available, scalable backend services for large-scale consumer applications. Collaborate with Product and Design teams to move features from initial concept through to deployment. Mentor fellow engineers and contribute to architectural decisions across the platform. Tackle complex distributed system challenges to ensure reliability and high performance. Promote and implement best practices in engineering and operations. About the Roku APPS Team The APPS team is a group of experienced engineers focused on building platform products and services that support the Roku ecosystem, which includes over 100 million users and streaming devices. Our work covers essential device services such as setup, configuration, software updates, and smart home integration. The goal: seamless experiences for every device and user. We drive the architecture and implementation of services that make content discovery and interaction simple and engaging. The team thrives on solving tough technical problems and delivering features that shape the future of connected entertainment. Who Thrives Here Engineers who enjoy solving complex issues at scale. Those with a strong operational mindset and a hands-on approach to engineering. Individuals who value both technical depth and the chance to influence strategy. About Roku Roku is the leading TV streaming platform in the U.S., Canada, and Mexico. The company connects consumers to their favorite content, helps publishers reach new audiences, and gives advertisers unique ways to engage viewers. At Roku, impactful work and learning go hand in hand, with opportunities to contribute across disciplines and make a difference for millions of streamers worldwide.

Apr 17, 2026
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companyExtreme Networks, Inc. logo
Full-time|On-site|San Jose, California, United States

Join Extreme Networks, a global leader in cloud-driven networking solutions, trusted by over 50,000 customers around the world. Our innovative services and support empower businesses to accelerate their digital transformation and achieve remarkable advancements. With consistent double-digit growth year after year, we are uniquely positioned to deliver scalable outcomes that make a difference.At Extreme, inclusion is woven into our core values. We are dedicated to creating an inclusive environment where diversity is embraced, and all employees thrive. Here, differences are celebrated, fostering a workplace that reflects our commitment to every individual.Be part of an exciting journey with Extreme! As a recognized leader in networking, now is the perfect time to join our dynamic team.In a technology-driven world, our mission is clear: to innovate continuously, seeking better outcomes for all. We empower various sectors—including businesses, governments, healthcare, and education—to realize their full potential through our One Network, One Cloud, One Extreme approach.As a Principal Backend Software Developer, you will join a high-performing engineering team dedicated to designing, implementing, and testing advanced features for our ExtremeCloud Applications and Platform. This AI/ML powered solution revolutionizes wired and wireless cloud network management. You will collaborate with team members and cross-functional partners to ensure the delivery of high-quality solutions that focus on scalability, availability, and performance.

Oct 27, 2025
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companyArcher Aviation logo
Full-time|$182.5K/yr - $220K/yr|On-site|San Jose, California, United States

Archer Aviation builds all-electric vertical takeoff and landing aircraft in San Jose, California. The company focuses on sustainable air mobility, designing aircraft for four passengers with an emphasis on reducing noise. Diversity and inclusion matter here. Archer values a workplace where different perspectives drive better solutions and support every team member’s growth. Role Overview The Senior Staff Backend Engineer, Platform Core, shapes the core services that support Archer’s platform. This includes building and maintaining the Entity Registry, implementing change tracking, developing typed source system connectors, and supporting integration infrastructure used by all applications. The role centers on backend development in Go, tuning PostgreSQL for performance, and designing robust infrastructure. These systems are accessed by application teams through the Platform SDK.

Apr 14, 2026
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companyArcher56 logo
Internship|On-site|San Jose, California, United States

Archer56 offers an internship in San Jose, California, focused on landing gear engineering. This position supports the design and development of landing gear systems for new aircraft. Interns join a team of experienced engineers and contribute to multiple stages of the engineering process. Role overview This internship centers on practical aerospace engineering work. Interns participate in both design and technical development, gaining exposure to real-world projects in the aviation field. What you will do Assist with the conceptual design of landing gear systems Support activities related to development, testing, and validation Work on hands-on aerospace engineering projects Collaborate with the engineering team on technical assignments

Apr 24, 2026
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company
Internship|On-site|San Jose, CA

Job OverviewBonsai Robotics is seeking a motivated Robotics Software Intern to join our innovative team, dedicated to advancing autonomous systems in the agricultural sector. The perfect candidate will possess a hands-on approach, a thirst for technical knowledge, and a passion for implementing robotics solutions in real-world, challenging environments.What You'll Work OnAs an intern, you will engage in short-term projects (3–6 months) tailored to your skill level. Your contributions may include:Developing comprehensive, high-performance robotic vehicle applicationsCreating tools for sensor data collection and analysisDesigning software components for both on- and off-board robotic platformsCollaborating with Robotics, Vision, and Cloud teams to ensure seamless integration with clean and consistent interfaces

Apr 7, 2026
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companyAntora logo
Internship|On-site|San Jose, CA

Join Antora as a Module Process Engineering Intern and immerse yourself in the innovative world of semiconductor processes. This internship offers a unique opportunity to work alongside seasoned engineers and contribute to the development and optimization of cutting-edge technologies. You will gain hands-on experience in process engineering, analyze data, and assist in the implementation of process improvements. Ideal candidates will be eager to learn and adapt in a fast-paced environment.

Apr 1, 2026
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companyEtched logo
Internship|On-site|San Jose

About EtchedEtched is pioneering the world’s first AI inference system specifically designed for transformers, achieving over 10 times the performance with significantly reduced costs and latency compared to traditional models. Our cutting-edge ASIC technology enables the creation of products that are unachievable with GPUs, including real-time video generation models and advanced reasoning agents. With substantial backing from top-tier investors and a team of exceptional engineers, Etched is transforming the infrastructure landscape for the rapidly evolving AI industry.Job SummaryAs a mechanical/thermal engineering intern, you will become an integral part of our mechanical and thermal engineering team, focusing on New Product Introduction (NPI) prototyping, manufacturing fixture development, liquid cooling technologies, and rack-level system design. Our Platform Team is responsible for developing a comprehensive full-stack system that supports Etched Silicon from PCB to Rack. We are looking for interns eager to engage in all facets of mechanical and electrical engineering to help shape the future of high-power ASIC systems.Ideal Candidates Will Have:Progress towards a Bachelor’s or Master’s degree in Mechanical Engineering, Computer Engineering, or a related field.Hands-on experience in building mechanical systems, circuit boards, or similar projects.Familiarity with the board design cycle, high-speed interconnects, power distribution, and system integration.We encourage applications from candidates who may not meet every single qualification.Internship Program Details:12-week paid internship (June - August 2026)Generous housing support for interns relocating to San JoseDaily lunch and dinner provided at our officePosition based in our San Jose, CA officeDirect mentorship from industry leaders and top-tier engineersOpportunity to contribute to addressing some of the most critical challenges of our timeFor inquiries, please contact internships@etched.com

Feb 7, 2026
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companyCouchbase Inc. logo
Full-time|On-site|San Jose, CA

Join Couchbase Inc. as a Principal Software Engineer and play a pivotal role in designing and implementing innovative software solutions. You will collaborate with cross-functional teams to drive the technical direction of our products, ensuring high performance and scalability. Your expertise will guide the development of robust systems that meet customer needs and industry standards.

Apr 10, 2026
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companyarcher56 logo
Full-time|On-site|San Jose, California, United States

Join archer56 as a Staff Software Engineer specializing in Engineering Applications. In this pivotal role, you will leverage your extensive software engineering expertise to develop innovative solutions that enhance our engineering capabilities. Collaborate with cross-functional teams to design, implement, and optimize applications that streamline engineering processes and improve productivity.

Apr 8, 2026
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companyWeRide logo
Internship|On-site|San Jose, CA

WeRide is at the forefront of autonomous driving technology, specializing in innovative solutions that span from Level 2 to Level 4 capabilities. Our diverse product offerings include Robotaxi, Robobus, Robosweeper, Robovan, and Advanced Driving Solutions, all designed to enhance transportation safety, affordability, and accessibility. Join us as we revolutionize mobility with our cutting-edge driverless technologies.As a Summer Intern in our Software Engineering team, you will:Collaborate with elite engineers to design, develop, and maintain advanced software systems for autonomous driving. Your role will involve engaging in a variety of meaningful projects tailored to the team you join, providing you with the opportunity to face exciting challenges in a dynamic environment. Work closely with your manager, mentor, and team members to foster innovation and contribute significantly to the evolution of autonomous driving technology.

Oct 7, 2025
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company
Internship|On-site|San Jose, CA

About the RoleWe are seeking a passionate Machine Learning Engineering Intern to join our perception and learned-behavior teams. As an intern, you will tackle real-world challenges using actual data from machines in the field, rather than simplified datasets. Your projects may include:Creating auto-labeling pipelines to enhance our training data.Designing generative simulation environments for model assessment.Refining model inference for deployment on edge devices (NVIDIA Jetson).Assisting in the training and evaluation of BEV (bird's-eye-view) perception or VLA models.This hands-on position will enable you to deploy code that directly influences our autonomy stack.

Mar 27, 2026
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companyEtched logo
Full-time|On-site|San Jose

Etched develops AI inference systems optimized for transformer architectures. The company’s ASIC technology is designed to deliver significantly higher performance and lower latency than traditional solutions, supporting applications like real-time video generation and parallel reasoning agents. Etched is backed by major venture capital firms and led by an experienced engineering team. Role overview The Advanced IC Packaging Team in San Jose is seeking a Thermo-Mechanical & CFD Simulation Engineering Intern. This internship centers on Chip-on-Wafer-on-Substrate (CoWoS) package development for high-performance computing systems. The role involves hands-on simulation work using ANSYS Mechanical APDL and ANSYS FLUENT. What you will do Create Finite Element Analysis (FEA) models for CoWoS integrated circuit packages in ANSYS Mechanical APDL. Conduct thermo-mechanical stress and strain analyses, including thermal cycling simulations. Evaluate package warpage, solder joint reliability, and interconnect stress. Develop Computational Fluid Dynamics (CFD) models in ANSYS FLUENT to simulate solder reflow. Collaborate with design engineering teams throughout package development.

Apr 24, 2026

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