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Junior Python Backend Developer 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 ... Our tech stack includes Python, FastAPI, and Postgres * Experience designing and scaling ...

Docugami

Back End Software Engineer

Kirkland, WA · On-site

We're looking for Back End Engineers to join our team and help make these breakthroughs happen ... Docugami values engineers from diverse backgrounds who are strong in Python, C# and/or Java, enjoy ...

INSPYR Solutions

Full Stack Engineer

Redmond, WA · On-site

$70 - $75/hr

The ideal candidate has strong Python backend expertise, frontend experience with React, JavaScript ... Familiarity with CI/CD pipelines, automated testing, and DevOps practices. * Experience supporting ...

Accenture

Knowledge Engineer - Back End

Redmond, WA · On-site

You Are: We are looking for a Back-End Engineer to design, build, and operate the data ... Minimum 3 years Proficiency in Python or Java for automation, integration, and service development ...

Accenture

Knowledge Engineer - Back End

Kirkland, WA · On-site

You Are: We are looking for a Back-End Engineer to design, build, and operate the data ... Minimum 3 years Proficiency in Python or Java for automation, integration, and service development ...

Accenture

Knowledge Engineer - Back End

Seattle, WA · On-site

You Are: We are looking for a Back-End Engineer to design, build, and operate the data ... Minimum 3 years Proficiency in Python or Java for automation, integration, and service development ...

Jobtailor

Senior Full Stack Software Engineer

Seattle, WA · On-site

$150 - $190/hr

Help shape architectural decisions and proactively tackle tech debt, bugs, and other engineering ... Experience with Python--our backend services are predominantly written in Python. * Hands-on ...

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Junior Python Backend Developer information

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$18.2K

$168.7K

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How much do junior python backend developer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for junior python backend developer in Seattle, WA is $168,693.00, according to ZipRecruiter salary data. Most workers in this role earn between $165,600.00 and $190,600.00 per year, depending on experience, location, and employer.

What does a junior Python backend developer do?

A Junior Python Backend Developer is responsible for writing server-side logic using the Python programming language. They work on building, maintaining, and optimizing the backend of web applications, often collaborating with frontend developers and other team members. Their daily tasks may include developing APIs, managing databases, debugging code, and ensuring the application runs smoothly and efficiently. As junior developers, they are also expected to learn best practices, follow coding standards, and continuously improve their skills.

What are the key skills and qualifications needed to thrive as a junior Python backend developer?

To thrive as a Junior Python Backend Developer, you need proficiency in Python programming, understanding of backend frameworks like Django or Flask, and a solid grasp of databases and RESTful API design, typically supported by a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, cloud platforms, and containerization tools such as Docker is often expected. Strong problem-solving skills, eagerness to learn, and effective teamwork make someone stand out in this role. These skills and qualities are crucial for building reliable backend systems, collaborating with teams, and adapting to evolving technical requirements.

What types of projects and tasks can a junior Python backend developer expect to work on during their first year?

As a Junior Python Backend Developer, you can expect to work on tasks such as building and maintaining RESTful APIs, writing automated tests, fixing bugs, and contributing to database design. You'll likely start with smaller components or features, collaborating closely with senior developers and front-end teams to ensure smooth data flow and application performance. Over time, you'll gain exposure to code reviews, deployment processes, and may gradually take on more complex assignments as you build your expertise and confidence.
What are the most commonly searched types of Python Backend Developer jobs in Seattle, WA? The most popular types of Python Backend Developer jobs in Seattle, WA are:
Junior Python Backend Developer jobs near you

Backend Software Engineer (Evals)

OpenAI

Seattle, WA • On-site

$230K - $385K/yr

Full-time

Re-posted 24 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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