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159 development intern jobs at 70 companies in Seattle, WA

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Energy Research and Development Intern
Tacoma, Washington, United States
$17-$21/hr OnsiteInternship
City of Tacoma
City of Tacoma: Provides municipal services and public utilities to Tacoma residents.
1+ YOEHigh school diploma/GED and 1 year post-high-school training required; some science/technology or research analysis experience preferred; may require WA driver’s license depending on assignment; background check and application materials required.
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3mo
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Game Research & Development Intern, Engine Research
Bellevue, Washington, United States
$28-$60/hr OnsiteInternship
Tencent
TencentHong Kong Stock Exchange: 0700: Developing digital services and entertainment for a global audience.
0+ YOEStrong coding skills in C++, Python, TensorFlow/Torch; knowledge in calculus and linear algebra; good communication; graduate student in a master or PhD program.
C++, Python, TensorFlow, Torch
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3mo
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Game Research & Development Intern, Engine Research
Bellevue, Washington, United States
$28-$60/hr OnsiteFull Time, Internship
LightSpeed Studios
LightSpeed StudiosHKEX: 0700: Develops and publishes mobile and AAA video games globally.
Strong coding in C++, Python, TensorFlow/Torch; calculus, linear algebra, numerical analysis; collaboration and communication skills; graduate students in masters or PhD; publications in graphics/vision/ML; familiarity with game engine, graphics APIs, GPU programming.
C++, Python, TensorFlow, Torch, Graphics APIs, GPU programming
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2mo
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Software Development Engineer Intern, AWS Data Services - Fall 2026 (US)
Seattle, Washington, United States
$111k-$160k/yr OnsiteInternship, Full Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
0+ YOEInternship in software development; enrolled in a Bachelor's degree or higher in STEM; 40 hours/week for 12 weeks; strong programming and problem-solving skills; eligible to work in the US; available Aug/Sep 2026 start.
Java, Python, C++, C#, Go, Rust, TypeScript, AWS, SQL, NoSQL, CI/CD
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Software Engineering Intern
Seattle, Washington, United States
HybridInternship
Arboreal Management
Arboreal Management: A property management firm operating affordable and workforce housing.
0+ YOECS/Software Eng student; strong fundamentals; experience building software; eager to learn from leadership; proficient in web development; SQL; able to build internal tools independently.
Python, JavaScript/TypeScript, React, SQL
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2mo
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Intern-Field
Bellevue, Washington, United States
$20/hr OnsiteInternship
Actalent
Actalent: Provides specialized engineering and scientific talent solutions and services.
Pursuing a bachelor's degree; rising senior; interest in sales and recruiting; prior customer service or sales experience a plus.
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Director for Development, Global Affairs
Seattle, Washington, United States
$116k/yr HybridFull Time
University of Washington
University of Washington: Provides higher education and comprehensive academic healthcare services.
5+ YOEBachelor's degree and five years of development experience required; experience securing major/principal gifts, portfolio management, strategic leadership, and global/international program experience preferred.
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Global Development Lead, Internal Medicine, Sr. Director (non-MD)
Collegeville or La Jolla or Bothell or Pearl River or New York City or Cambridge or Groton or United Kingdom or Walton Oaks or Collegeville
$215k-$358k/yr HybridFull Time
Pfizer
PfizerNYSE: PFE: Develops and manufactures vaccines and medicines for global healthcare
8+ YOEPhD or PharmD; 8+ years in clinical development (Phase 1-3); expertise in weight management or internal medicine; strong leadership and communication.
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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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Software Development Engineer Intern (Network Automation) - 2026 Summer (BS/MS)
Seattle, Washington, United States
OnsiteInternship
ByteDance
ByteDance: Developing AI-driven content platforms and mobile applications.
Currently pursuing a BS/MS in CS, communications, or related field; 12-week summer availability; knowledge of algorithms/data structures; proficiency in Python, Go, or Rust; familiarity with MySQL, Redis, Kafka; basic networking protocol knowledge.
Python, Go, Rust, MySQL, Redis, Kafka
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Sr. Staff Software Development Engineer-AI Security
San Jose or Bellevue
$154k-$220k/yr HybridFull Time
Zscaler
ZscalerNASDAQ: ZS: Provides cloud-native cybersecurity solutions through zero trust architecture.
8+ YOE8+ years software engineering; Rust with async; distributed systems; Linux internals; CI/CD; gRPC; Protobufs; Kubernetes; networking.
Rust, Tokio, async-std, gRPC, Protobufs, Linux, Kubernetes, Networking, TLS, QUIC, HTTP, WebSockets
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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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Planning Intern (2 positions)
Seattle, Washington, United States
$24/hr HybridPart Time, Temporary
Puget Sound Regional Council
Puget Sound Regional Council: Regional agency planning transportation and growth for Puget Sound.
Enrollment in a relevant degree program or equivalent lived experience; analytic and communication skills; familiarity with planning, transportation, housing, and data analysis; ability to perform quantitative and qualitative research.
Microsoft Excel, ArcGIS, Tableau, OpenStreetMap
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2w
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Agentic AI Intern
Boston or Seattle or Ontario or San Francisco
RemoteInternship
DataRobot
DataRobot: Provides an enterprise platform for building and governing AI.
Pursuing or recently completed BS/MS in CS/data science/engineering; proficiency in Python (pandas,numpy); foundational ML knowledge; strong communication and autonomy; passion for autonomous agents.
DataRobot platform, AutoML, GenAI, MLOps, Python, pandas, numpy, LangGraph, CrewAI, LlamaIndex, FastAPI, Flask, Docker, Slack, Confluence
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3w
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AI Agent Development Project Intern (TikTok Shop Governance and Experience) - 2026 Start (BS/MS)
Seattle, Washington, United States
OnsiteIntern
TikTok
TikTok: Global short-form video hosting and social media platform.
Pursuing or recently completed BS/MS in CS, Data Science, Engineering, Business Analytics, Compliance or related; familiarity with AI/ML and NLP; strong communication, data handling, and problem-solving skills.
Microsoft Excel, SQL
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1mo
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Medical Director / Senior Medical Director, Clinical Development
Bothell, Washington, United States
$288k-$395k/yr OnsiteFull Time
Immunome
ImmunomeNASDAQ: IMNM: Develops targeted cancer therapies and antibody-drug conjugates.
3+ YOEMD/DO (or equivalent) required; 3+ years clinical development experience; medical monitor experience for interventional trials; board certification or training in oncology/internal medicine preferred; working knowledge of GCP/ICH and experience with Phase 2/3 oncology studies.
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4w
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Research Intern — Applied Reinforcement Learning
Palo Alto or Redmond or United States
$35-$45/hr RemoteFull Time, Contract
Centific
Centific: Providing data curation and platforms for scalable AI deployment.
PhD candidate in CS/ML or related field; strong Python and PyTorch with GPU training experience; solid RL fundamentals and RLHF/DPO/PPO experience; strong experimentation and reporting skills.
Python, PyTorch, CUDA, Gymnasium, RLlib, Stable Baselines, TRL, Weights & Biases, FastAPI, gRPC, ONNX, TensorRT
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3mo
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Graduate/PhD Research Intern, Machine Learning
Seattle, Washington, United States
$6k-$7k/mo OnsiteInternship, Full Time
Constellation Space
Constellation Space: AI-powered operating system for satellite network management.
MS/PhD student in CS/EE/Aerospace or related; strong ML and engineering skills (C++, Python, Rust); experience with ML experiments, time-series, and reproducibility; able to own projects end-to-end; good communication.
C++, Python, Rust, Machine Learning Tools
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5d
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Organizational Development Consultant
Chicago or Dallas or Seattle or Charlotte or Minneapolis or Boston or Salt Lake City
$150k-$175k/yr OnsiteFull Time
Lockton
Lockton: Provides insurance brokerage and global risk management solutions.
10+ YOE10+ years in change management, organization design, internal consulting or related fields; strong facilitation, stakeholder management, and solution design skills; experience with Prosci/ADKAR/Lean/Six Sigma preferred.
Prosci, ADKAR, Lean, Six Sigma
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3d
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​​Phytoplankton Carbon Solutions Intern​
United States or San Francisco or Boston or Seattle
$18-$20/hr HybridPart Time, Full Time
Environmental Defense Fund
Environmental Defense Fund: Finds science-based solutions for urgent global environmental problems.
Enrolled in or recent graduate in biological oceanography or related field, literature review and database experience, strong written/oral communication, organized, detail-oriented, able to work independently and in teams.
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