70 backend software intern jobs at 53 companies in United States

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
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Backend / Frontend Developer Intern
Chicago, Illinois, United States
OnsiteInternship
Prospect Equities
Prospect Equities: Provides residential and commercial real estate brokerage and leasing services.
0+ YOEInternship seeking motivated, detail-oriented students skilled in frontend or backend development.
JavaScript, TypeScript, React, REST APIs, AWS, PostgreSQL, MongoDB, Elasticsearch, Java, Spring Boot, JUnit, AWS
4w
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Backend Engineering Intern
San Francisco or Istanbul or Ankara
HybridFull Time, Internship
PlusMinusOne
PlusMinusOne: Develops and markets a portfolio of utility and lifestyle apps
0+ YOE3rd/4th-year CS or engineering student with backend interest; hands-on backend experience via coursework/projects/internships; OOP, data structures, algorithms, and Git familiarity; strong analytical and communication skills.
Git
2mo
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Software Engineer- Backend Intern (Fall 2026)
San Francisco, California, United States
$29/hr OnsiteInternship
Astranis
Astranis: Builds and operates small geostationary communications satellites.
Pursuing a CS degree; strong Python; databases and pub/sub/streaming experience; open to applicants not matching all criteria.
Python, PostgreSQL, RabbitMQ, Apache Flink, Kubernetes
3w
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Software Engineer - Backend (Fall 26' Intern)
Natick, Massachusetts, United States
$28-$32/hr OnsiteInternship
Delsys
Delsys: Designs and manufactures advanced wearable electromyography and physiological sensors.
Currently enrolled or recently graduated in CS/CE or similar; fluent in Java, C#, or C++; strong OOP and back-end development experience for Windows or Linux; wearable sensor experience useful; must show valid work eligibility.
Java, C#, C++, Windows, Linux
3mo
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Java Backend Developer
United States
RemoteFull Time
HeadSpin
HeadSpin: AI-powered digital experience testing and monitoring platform.
4+ YOEJava backend developer with database and performance focus; 4-5 years experience; remote collaboration with international team; backend services and data modeling responsibilities.
Java, Spring Framework, Hibernate, JPA, PostgreSQL, SQL Server, Oracle, SQL, Hibernate/JPA
2mo
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Software Engineer Intern - Backend Focused - Winter 2027
New York or San Francisco or Seattle
OnsiteInternship, Temporary
Rippling
Rippling: Unified platform managing workforce HR, IT, and finance operations
Current undergraduate/graduate student in CS or related field, previous software engineering internship experience with Python, backend programming skills, strong communication and critical thinking.
Python, Slack, Microsoft 365
1mo
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Senior Backend Engineer, International Eng
Kraków or United States or United Kingdom or Ireland or Poland or Germany or Australia
RemoteFull Time
Whatnot
Whatnot: Social marketplace for buying and selling via live streams
5+ YOE5+ years software engineering experience; strong backend and distributed systems skills; production service design and scaling; proficiency in Python or Go; experience with relational databases and event-driven architectures.
Python, Go
2mo
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Software Engineering Intern, Backend & API
Glendale, California, United States
$25-$35/hr HybridInternship
Moon
Moon: Building an AI-powered SaaS platform for business operations.
C# coursework or project experience; REST API design; SQL and data skills; willingness to learn .NET specifics.
.NET, React, Capacitor, Python, Cursor, Copilot, Claude
1w
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Backend Software Engineer Intern(Foundation Platform) - 2026 Summer (BS/MS)
San Jose, California, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
Currently pursuing a Bachelors or Masters in CS or related field, able to commit to a 12-week Summer 2026 internship, experience with Python/Java/Golang/C#/C++, strong problem-solving and communication skills.
Python, Java, Golang, C#, C++
2mo
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Senior Software Engineer | GTM Platform, Backend
New York City, New York, United States
$200k-$310k/yr HybridFull Time
Ramp
Ramp: Financial operations platform for corporate cards and spend management.
4+ YOE4+ years product engineering, building internal tools/platforms; strong product instincts; comfortable with AI/LLM workflows; velocity and ownership; cross-functional empathy.
Next.js, Sanity CMS, Python, TypeScript, AI/LLM tooling
1mo
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Software Engineering Intern
Palo Alto, California, United States
$8k-$10k/mo OnsiteInternship
GenBio AI
GenBio AI: Developing AI foundation models to simulate and program biology.
0+ YOECurrently enrolled in a full-time Master’s or Ph.D program; strong CS fundamentals; frontend React/TypeScript; backend with FastAPI; self-starter in fast-paced startup.
React, TypeScript, FastAPI, Python, REST, SQL, NoSQL, Docker
1mo
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Software Engineering Intern
Crawley or Houston or Singapore
HybridFull Time, Internship
Viridien
ViridienEuronext Paris: VIRI: Provides geoscientific data, imaging services, and seismic exploration equipment.
Strong Python and Docker skills, good understanding of data structures/algorithms and backend development; familiarity with APIs, databases, and machine learning workflows; strong problem-solving and collaboration skills.
Python, Docker, Kubernetes (K8s), AWS, GCP, Azure, PyTorch, TensorFlow, scikit-learn, langgraph, vllm, CI/CD
1w
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Software Development Intern
California, United States
$26-$40/hr RemoteFull Time
iHerb
iHerb: Global e-commerce retailer of health and wellness products.
Pursuing BS/MS in CS or related field; proficiency in C# or Java; backend/API or frontend experience; familiarity with REST, messaging, CI/CD, containers; strong communication and troubleshooting skills.
Microsoft .NET, C#, Java, TCP/IP, UDP, PLC, Prometheus, Grafana, OpenTelemetry, Docker, Kubernetes, RabbitMQ, Kafka, Redis, Android, ASP MVC, ReactJS, ReactNative, CI/CD
1mo
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Software Engineering Intern
Crawley or Houston or Singapore
HybridFull Time
Viridien
Viridien: Provides geoscience services, earth data, and seismic equipment.
Strong Python and Docker skills, solid fundamentals in data structures and algorithms, backend development familiarity, ability to work across domains, problem-solving, and attention to detail; Kubernetes, cloud, and ML exposure preferred.
Python, Docker, Kubernetes (K8s), AWS, GCP, Azure, PyTorch, TensorFlow, scikit-learn, langgraph, vllm
2mo
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Software Engineer Intern (2026 Summer)
San Diego, California, United States
$5k-$7k/mo OnsiteInternship
Whova
Whova: All-in-one platform for event management and attendee engagement.
Currently enrolled as a junior/senior, master’s, or doctoral student in a computer science/engineering field; strong understanding of data structures, algorithms, and computer systems.
JavaScript, TypeScript, HTML, CSS, REST APIs, Front-end development, Back-end development
2mo
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Software Engineer Intern (Fall / Winter 2026)
San Francisco or Canada
RemoteInternship
Cohere
Cohere: Provides enterprise-grade large language models and AI software platforms.
Enrolled in a post-secondary program; available for a full-time 3-6 month internship; remote; roles across frontend, backend, full-stack, and infrastructure.
2mo
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SWE Intern
San Francisco, California, United States
OnsiteInternship
Chasi
Chasi: AI revenue engine for construction equipment dealers.
1+ YOE1+ internships in production software; full-stack TS/React with backend; experience with LLMs; real-time systems; strong architectural judgment; customer-facing; ownership.
Next.js, TypeScript, PostgreSQL, Redis, Twilio, LiveKit, OpenAI, Anthropic, Deepgram, Vector Databases
3d
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Software Engineer Intern
San Francisco, California, United States
$11k/mo OnsiteFull Time
Serval: AI platform for automating IT and enterprise service workflows.
Currently pursuing a technical degree (graduation 2026–2028), strong CS fundamentals, familiarity with a backend language (Go/Java/Python), clear communication, and eagerness to learn in a startup environment.
Go, gRPC, Kubernetes, React, TypeScript, AWS, Terraform
1mo
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Compiler Engineer — LLVM Backend
Mountain View, California, United States
$180k-$320k/yr OnsiteFull Time
DensityAI
DensityAI: Designing custom AI hardware accelerators for large language models.
5+ YOEExpert LLVM backend internals, 5+ years compiler engineering with LLVM target development, strong computer architecture and ISA design knowledge, debugging compilation correctness and performance; MLIR/GPU/linker experience optional.
LLVM, TableGen, MLIR, Microsoft Excel
1mo
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Intern Conversion: Software Developer
Poughkeepsie or Lowell or Durham or Bellevue or San Jose or Dallas
$88k-$152k/yr HybridFull Time, Internship
IBM
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
Must be currently enrolled in a Bachelor’s or Master’s in Computer Science or related field, available for an in-person full-time co-op (Jan–Jun 2026). Familiarity with HTML, CSS, JavaScript, React/Angular/Vue, backend tech (Node.js/Java/Python/SQL), Git/IDEs, APIs, containers, and cloud platforms. Must be able to work without visa sponsorship.
HTML, CSS, JavaScript, React, Angular, Vue, Node.js, Java, Python, SQL, Git, IDEs, APIs, IBM Cloud, AWS, Microsoft Azure, Linux, Unix, GO, NodeJS, Eclipse, Microsoft Visual Studio Code, PostgreSQL, MySQL, Db2, Oracle, SQL Server, Jenkins, Puppeteer, Selenium, Playwright, Cypress, Travis, REST API