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Backend Software Developer Intern Jobs in Seattle, WA

OpenAI

Backend Software Engineer (Evals)

Seattle, WA · On-site

$230K - $385K/yr

About the Role We're looking for a Backend Software Engineer with experience working in ML/LLM-heavy domains to help to design and build an evals infrastructure that measures the quality of OpenAI ...

DAT

Senior Backend Software Engineer

Seattle, WA · On-site

$139K - $183K/yr

... Backend Software Engineer to join the Broker Tech team building the Convoy Platform, a digital ... Identify and drive cross-cutting improvements to shared libraries, CI/CD pipelines, developer ...

LVT

Senior Backend Software Engineer - Seattle

Seattle, WA · On-site

$159K - $192K/yr

... software across our entire user interface surface area and the mission-critical backend services ... Collaborate across adjacent QA, DevOps, and architecture teams to accelerate CI/CD pipelines ...

LVT

Senior Backend Software Engineer - Seattle

Seattle, WA · On-site

$159K - $192K/yr

... software across our entire user interface surface area and the mission-critical backend services ... Collaborate across adjacent QA, DevOps, and architecture teams to accelerate CI/CD pipelines ...

Otter

Senior Backend Software Engineer

Seattle, WA

$167K - $230K/yr

What you'll do As a Software Engineer on the Otter Marketing/Boost team, you'll build the AI ... Build backend services for campaign management, budgeting, and a multi-channel pipeline that ...

Otter

Senior Backend Software Engineer

Seattle, WA · On-site

$167K - $230K/yr

What you'll do As a Software Engineer on the Otter Marketing/Boost team, you'll build the AI ... Build backend services for campaign management, budgeting, and a multi-channel pipeline that ...

Otter

Senior Backend Software Engineer

Seattle, WA · On-site

$167K - $230K/yr

What you'll do As a Software Engineer on the Otter Marketing/Boost team, you'll build the AI ... Build backend services for campaign management, budgeting, and a multi-channel pipeline that ...

Coupang

Sr. Staff Backend Software Engineer

Seattle, WA · On-site

$174K - $299K/yr

... and operating backend services and web applications. * Experience building complex, high ... Knowledge of Agile software engineering practices & patterns for the full software development ...

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Backend Software Developer Intern information

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How much do backend software developer intern jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for backend software developer intern in Seattle, WA is $65.70, according to ZipRecruiter salary data. Most workers in this role earn between $53.89 and $77.69 per hour, depending on experience, location, and employer.

What does a backend software developer intern do?

A Backend Software Developer Intern assists in building and maintaining the server-side logic, databases, and APIs that power web applications. Their responsibilities typically include writing code, debugging issues, and collaborating with other developers to ensure data flows efficiently between the server and users. Interns often work with languages like Python, Java, or Node.js and gain practical experience with databases, cloud services, and development tools. This role provides valuable exposure to real-world software engineering practices and helps interns develop the technical and teamwork skills needed for a career in backend development.

What are the key skills and qualifications needed to thrive as a backend software developer intern?

To thrive as a Backend Software Developer Intern, you should have a solid understanding of programming languages like Java, Python, or Node.js, and basic knowledge of algorithms, data structures, and databases. Familiarity with version control systems (like Git), RESTful APIs, and cloud platforms such as AWS or Azure is often expected. Strong problem-solving skills, teamwork, and effective communication set standout interns apart. These skills and qualities are crucial for building reliable backend systems, collaborating across teams, and adapting to real-world engineering challenges.

What types of projects and technologies do backend software developer interns typically work on during their internship?

Backend Software Developer Interns are often assigned to work on real-world projects such as building APIs, optimizing databases, or improving existing backend services. Interns typically use languages like Python, Java, or Node.js, and work with frameworks and tools such as Django, Spring Boot, or Express.js. Collaboration with frontend developers, QA engineers, and product managers is common, providing valuable experience in agile environments. The projects and technologies may vary depending on the company, but they are designed to help interns gain hands-on experience and contribute meaningfully to the team's goals.

What cities near Seattle, WA are hiring for Backend Software Developer Intern jobs?

Cities near Seattle, WA with the most Backend Software Developer Intern job openings:

Backend Software Developer Intern jobs near you

Backend Software Engineer (Evals)

OpenAI

Seattle, WA • On-site

$230K - $385K/yr

Full-time

Re-posted 3 days ago

Job description

About the Team
The Support Automation team at OpenAI scales the organization by applying cutting-edge AI models to real-world challenges, automating and enhancing work across the organization. From customer operations to engineering, we develop an ecosystem of automation products that empower our colleagues and drive impact. We're passionate about crafting products that serve those around us, blending rapid prototyping with a focus on long-term quality and reliability. By creating reusable solutions, we create patterns that can be applied across diverse domains within OpenAI.
TLDR: this team leverages OpenAI technology to improve OpenAI, and you'll have the opportunity to leverage the full extent of our tech (both public and pre-released) to accomplish this mission.
About the Role
We're looking for a Backend Software Engineer with experience working in ML/LLM-heavy domains to help to design and build an evals infrastructure that measures the quality of OpenAI's support automation. This is a deeply technical and highly cross-functional role where you'll build robust systems and backend services that serve as the foundation for how knowledge is created, accessed, and applied across OpenAI. The role will especially focus on working closely with Data Science and Research partners to design and build evals at scale.
In this role, you will:
  • Design eval pipelines that are reliable, reproducible, and extendable
  • Build the infrastructure for continuous eval monitoring frameworks (regression/drift monitoring, building robust golden datasets) along with feedback loops that ultimately strengthen support automation
  • Design, build, and maintain backend services and APIs to support intelligent automation and knowledge systems
  • Integrate and structure data across internal platforms, transforming it into formats optimized for use by downstream systems and AI workflows.
  • Collaborate closely with data, research, and engineering teams to integrate OpenAI models into high-leverage workflows
  • Own the full development lifecycle of new backend systems and internal platform capabilities
  • Build with scale and maintainability in mind, while rapidly iterating on new ideas

You might be a great fit if you have:
  • 4+ years of backend engineering experience at product-driven companies (excluding internships)
  • Proficiency in backend technologies. Our tech stack includes Python, FastAPI, and Postgres
  • Experience designing and scaling distributed systems, APIs, or data processing pipelines
  • Have experience building AI agents or applications, including designing evals and improving performance through prompting or scaffolding
  • Are familiar with evaluation methods for LLMs and have worked with patterns like multi-agent workflows, tool use, or long context.
  • Experience creating production evals and/or measuring performance of ML/LLM models at scale
  • A pragmatic mindset. You're comfortable shipping iteratively while building toward a long-term vision

About OpenAI
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.
We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.
For additional information, please see OpenAI's Affirmative Action and Equal Employment Opportunity Policy Statement.
Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.
To notify OpenAI that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance.
We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link.
OpenAI Global Applicant Privacy Policy
At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

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