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16 algorithm engineer intern jobs at 7 companies in Seattle, WA

1mo
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2027 Software Engineer Intern
Costa Mesa or Irvine or Atlanta or Seattle or Boston or Reston
$45-$50/yr OnsiteInternship, Full Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Pursuing a Bachelor\u0002s in CS or related field, rising senior returning to school, proficiency in C++, Go, Rust, Java, or Python, familiarity with algorithms, data structures, cloud and front-end concepts, and U.S. Person status required.
C++, Go, Rust, Java, Python, Lattice OS
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2mo
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OCI Software Engineer Intern - OVIP
Seattle or Santa Clara
$38k-$72k/yr OnsiteFull Time
Oracle
OracleNYSE: ORCL: Provides cloud infrastructure and enterprise software for global businesses.
Experience with application development; programming in Java, JavaScript, C/C++, Python, Go; understanding data structures, algorithms, distributed systems; networking (TCP/IP, HTTP); databases/NoSQL; strong written and verbal communication; familiarity with agile methods.
Java, JavaScript, C, C++, Python, Go, TCP/IP, HTTP, NoSQL, Databases, Distributed systems
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2d
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(General Hire) Software Engineer Intern (Trust and Safety-Engineering) - 2027 Summer
Seattle, Washington, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
Pursuing undergraduate or master degree in CS or related field, able to work 12 weeks summer 2027, experience with Go/Python/PHP/C++/C/Java, strong data structures and algorithms, good communication and teamwork.
Go, Python, PHP, C++, C, Java
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2d
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Online Architecture Engineer Intern (TikTok-Generalized Arch) - 2027 Summer
Seattle, Washington, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
Currently a CS/related undergraduate or master's student, strong research background in distributed systems/large-scale optimization, familiar with optimization algorithms, proficient in Go/Java/C++/Python, available for a 12-week Summer 2027 internship.
Go, Java, C++, Python
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3w
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Machine Learning Engineer Intern (E-Commerce Recommendation/Search Alliance) - 2026 Start (PhD)
Seattle, Washington, United States
OnsiteInternship
ByteDance
ByteDance: Developing AI-driven content platforms and mobile applications.
Pursuing a PhD in CS/Engineering/OR, strong algorithms and ML/statistics skills, experience with big data and distributed computing; excellent problem-solving.
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1d
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Software Engineer: Fullstack Product (Web + Services) Intern Opportunities for University Students,
Redmond, Washington, United States
$6k-$11k/mo HybridInternship
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
1+ YOECurrently pursuing a CS or related degree with remaining term; programming and team project experience; familiarity with web frameworks, backend languages, data structures, algorithms, and REST APIs.
TypeScript, JavaScript, React, Angular, C#, Java, Node.js, Python, REST APIs
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1d
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Backend Software Engineer Intern (Global E-Commerce) - 2027 Summer
Seattle, Washington, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
Pursuing BS/MS in CS or related field; proficiency in at least one backend language (Java,Golang,Python,Scala,C++); understanding of data structures, algorithms, networks, and databases; familiarity with relational DBs, caches, or messaging systems.
Java, Golang, Python, Scala, C++
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9h
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Machine Learning Engineer Intern (Data-Global E-Commerce-Search) - 2027 Summer
Seattle, Washington, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
Currently pursuing a BS/MS in CS or related field; experience with Python/Java/C++/Go/JavaScript, data structures, algorithms, and basic system design; strong communication skills.
Python, Java, C++, Go, JavaScript
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1mo
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C++ Developer (System Components)
Warsaw or Czech Republic or Seattle
HybridFull Time
Veeam
Veeam: Data resilience and security for hybrid cloud environments
3+ YOE3+ years commercial development; strong C++ (C++17) and STL knowledge; experience with multithreaded applications, algorithms and OOP; English proficiency for international teams.
C++17, C#, Windows, Linux, STL, Boost, Multithreading, WinAPI, POSIX
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3w
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Machine Learning Engineer Intern (Global E-commerce Risk Control) - 2026 Start (PhD)
Seattle, Washington, United States
OnsiteInternship
ByteDance
ByteDance: Developing AI-driven content platforms and mobile applications.
Currently pursuing a PhD, available for a 12-week Summer 2026 internship; strong ML fundamentals, Python, SQL/Hive, Hadoop, data structures and algorithms; analytical and communication skills.
Python, SQL, Hive, Hadoop
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19h
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Machine Learning Engineer Intern (Data-Global E-Commerce-Search) - 2027 Start (PhD)
Seattle, Washington, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
12-week full-time internship for PhD candidates in CS or related fields; strong coding, algorithms, and teamwork; experience or interest in NLP, ranking, search, recommender systems, distributed systems, and ML.
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1d
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Machine Learning Engineer Intern (TikTok-Data-Search-Recommendation-Global E-Commerce) - 2027 Summer
Seattle, Washington, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
Currently pursuing a Bachelor’s or Master’s in a technical field; experience with Python/Java/C++/Go/JavaScript, data structures, algorithms, and system design; strong communication and collaboration skills.
Python, Java, C++, Go, JavaScript
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1mo
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C# Developer (Veeam Backup for Hypervisors) 
Warsaw or Seattle
RemoteFull Time
Veeam
Veeam: Data resilience and security for hybrid cloud environments
3+ YOE3+ years commercial product development experience, strong C# and .NET knowledge, data structures and algorithms, software design principles, English proficiency for international teams.
C#, .NET 10, Windows, Linux, RedHat, Ubuntu, PostgreSQL, Git, REST API, Multithreading, AI Tools, VMware vSphere, Microsoft Hyper-V, QEMU/KVM
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1mo
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C# Developer (Veeam Backup for Hypervisors) 
Prague or Poland or Seattle
RemoteFull Time
Veeam
Veeam: Data resilience and security for hybrid cloud environments
3+ YOE3+ years commercial product development, strong C# and .Net knowledge, solid data structures & algorithms and software design skills; English proficiency for international teams.
C#, .Net 10, Windows, Linux, RedHat, Ubuntu, PostgreSQL, git, RestAPI, Multithreading, AI Tools
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3w
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Machine Learning Engineer Intern (E-commerce Governance Algorithms) - 2026 Start (PhD)
Seattle, Washington, United States
OnsiteInternship
ByteDance
ByteDance: Developing AI-driven content platforms and mobile applications.
Pursuing a PhD in computer science or related field; interest in ML/NLP/vision; familiarity with C++, Python, Go, or Java; strong communication and teamwork.
C++, Python, Go, Java
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3w
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2027 North America Software Engineering Internship
Bellevue or Boulder or Denver or Irvine or New York or Seattle
$46-$62/yr HybridInternship
The Trade Desk
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
Enrolled in a Bachelor's or Master's program, expected to graduate 2027–2028; fluent in one or more object-oriented languages; strong data structures and algorithms; available to work 3 days in office (Tue–Thu).
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