Back End Developer Jobs in Washington
Back End Developer jobs in Washington are among the most active in the country, concentrated in cloud infrastructure, e-commerce platforms, enterprise software, and fintech, with openings at every level from junior developer through principal engineer. Seattle anchors most of the hiring, with additional activity in Bellevue and Redmond, where employers like Amazon, Microsoft, and Boeing maintain large engineering organizations. The most in-demand specialties include distributed systems, APIs, and cloud-native development on AWS and Azure. Find a role that fits below and apply directly.
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Showing 5 of 6+ Back End Developer jobs
We exist to wow our customers. We know we're doing the right thing when we hear our customers say, "How did I ever live without Coupang?" Born out of an obsession to make shopping, eating, and living easier than ever, we're collectively disrupting the multi-billion-dollar commerce industry from the ground up. We are one of the fastest-growing retail companies that established an unparalleled reputation for being a leading and reliable force in South Korean commerce.
We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurial, surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day.
Our mission to build the future of commerce is real. We push the boundaries of what's possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.
Job Overview:
As our Sr. Staff Backend Engineer for the Inventory and Promise Platform team, you will empower Coupang Fulfillment & Transportation to operate faster, better, and cheaper through modern, reliable, and data-driven technologies. In this role, you will be a key contributor to an area of the business that is rapidly expanding and is recognized for its Rocket Delivery service. The team already builds services that process thousands of requests per second, generate trillions of won annually in business decisions, and manage business rules that move millions of products. We are responsible for improving order coordination with technology to deliver products to millions of online shoppers. The role will involve technical leadership on rearchitecting and building a brand new Inventory and Promise platform which powers customer's shopping experience by giving inventory visibility to the customer to be able to order and gives out promised delivery dates for their order. Additionally, the platform also powers fulfillment orchestration once an order is placed.
Key Responsibilities:
- Serve as a technical lead on our most demanding, cross-functional projects involving Inventory and Promise.
- Independently come up with quality architecture and design of systems for new microservices and machine learning pipelines.
- Functionally decompose complex problems into simple, straightforward solutions.
- Possess expert knowledge in performance, scalability, enterprise distributed architecture, and engineering best practices.
- Assist in the career development of others, actively mentoring individuals and the community on advanced technical issues and helping managers guide the career growth of their team members.
- Exert technical influence over multiple teams, increasing their productivity and effectiveness by sharing your deep knowledge and experience.
Qualifications:
- Bachelor's degree in Computer Science, Electrical Engineering, Math, or a closely related field
- 10+ years of experience in backend software development
- Demonstrated experience in building and maintaining highly available, distributed systems
Preferred:
- Experience with scalable distributed systems and understanding of machine learning algorithms.
- Strong understanding of backend scalable software architecture, distributed systems, and message-oriented architecture.
- Experience with full-stack, high-scale production systems with fault-tolerance and monitoring.
- Experience with building stream-processing systems, using solutions such as Kafka and Spark-Streaming.
- Data caching and storage techniques and creating distributed software architectures with horizontal scale.
- Operationalizing software in a large-scale environment with high availability requirements.
- Experience in the eCommerce domain involved in supply chain systems around Inventory and Promise.
- Software development experience with Java, Scala, and Python.
- Experience with AWS; Java language would be a plus.
Pay & Benefits
Our compensation reflects the cost of living across several US geographic markets. At Coupang, your base pay is one part of your total compensation.
The base pay for this position ranges from $174,00/year to $299,000/year. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience.
General Description of All Benefits
- Medical/Dental/Vision/Life, AD&D insurance
- Flexible Spending Accounts (FSA) & Health Savings Account (HSA)
- Long-term/Short-term Disability
- Employee Assistance Program (EAP) program
- 401K Plan with Company Match
- 18-21 days of the Paid Time Off (PTO) a year based on the tenure
- 12 Public Holidays
- Paid Parental leave
- Pre-tax commuter benefits
- MTV - [Free] Electric Car Charging Station
General Description of Other Compensation
"Other Compensation" includes, but is not limited to, bonuses, equity, or other forms of compensation that would be offered to the hired applicant in addition to their established salary range or wage scale.
Recruitment Process
- Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer
- The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
- Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.
Details to Consider
- This job posting may be closed prior to the stated end date for application if all openings are filled.
- Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.
- Those eligible for employment protection (recipients of veteran's benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws.
Privacy Notice
- Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/
Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, or gender (including pregnancy, gender identity, gender expression, sexual orientation, transgender status), national origin, age, disability, medical condition, HIV/AIDS or Hepatitis C status, marital status, military or veteran status, use of a trained dog guide or service animal, political activities, or affiliations, citizenship, or any other characteristic or class protected by the laws or regulations in the locations where we operate. If you need assistance and/or reasonable accommodation in the recruiting process due to a disability, please contact us at usrecruiting@coupang.com.
Job Requisition ID: R0078747
We exist to wow our customers. We know we're doing the right thing when we hear our customers say, "How did I ever live without Coupang?" Born out of an obsession to make shopping, eating, and living easier than ever, we're collectively disrupting the multi-billion-dollar commerce industry from the ground up. We are one of the fastest-growing retail companies that established an unparalleled reputation for being a leading and reliable force in South Korean commerce.
We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurial, surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day.
Our mission to build the future of commerce is real. We push the boundaries of what's possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.
Job Overview:
As our Sr. Staff Backend Engineer for the Inventory and Promise Platform team, you will empower Coupang Fulfillment & Transportation to operate faster, better, and cheaper through modern, reliable, and data-driven technologies. In this role, you will be a key contributor to an area of the business that is rapidly expanding and is recognized for its Rocket Delivery service. The team already builds services that process thousands of requests per second, generate trillions of won annually in business decisions, and manage business rules that move millions of products. We are responsible for improving order coordination with technology to deliver products to millions of online shoppers. The role will involve technical leadership on rearchitecting and building a brand new Inventory and Promise platform which powers customer's shopping experience by giving inventory visibility to the customer to be able to order and gives out promised delivery dates for their order. Additionally, the platform also powers fulfillment orchestration once an order is placed.
Key Responsibilities:
- Serve as a technical lead on our most demanding, cross-functional projects involving Inventory and Promise.
- Independently come up with quality architecture and design of systems for new microservices and machine learning pipelines.
- Functionally decompose complex problems into simple, straightforward solutions.
- Possess expert knowledge in performance, scalability, enterprise distributed architecture, and engineering best practices.
- Assist in the career development of others, actively mentoring individuals and the community on advanced technical issues and helping managers guide the career growth of their team members.
- Exert technical influence over multiple teams, increasing their productivity and effectiveness by sharing your deep knowledge and experience.
Qualifications:
- Bachelor's degree in Computer Science, Electrical Engineering, Math, or a closely related field
- 10+ years of experience in backend software development
- Demonstrated experience in building and maintaining highly available, distributed systems
Preferred:
- Experience with scalable distributed systems and understanding of machine learning algorithms.
- Strong understanding of backend scalable software architecture, distributed systems, and message-oriented architecture.
- Experience with full-stack, high-scale production systems with fault-tolerance and monitoring.
- Experience with building stream-processing systems, using solutions such as Kafka and Spark-Streaming.
- Data caching and storage techniques and creating distributed software architectures with horizontal scale.
- Operationalizing software in a large-scale environment with high availability requirements.
- Experience in the eCommerce domain involved in supply chain systems around Inventory and Promise.
- Software development experience with Java, Scala, and Python.
- Experience with AWS; Java language would be a plus.
Pay & Benefits
Our compensation reflects the cost of living across several US geographic markets. At Coupang, your base pay is one part of your total compensation.
The base pay for this position ranges from $174,00/year to $299,000/year. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience.
General Description of All Benefits
- Medical/Dental/Vision/Life, AD&D insurance
- Flexible Spending Accounts (FSA) & Health Savings Account (HSA)
- Long-term/Short-term Disability
- Employee Assistance Program (EAP) program
- 401K Plan with Company Match
- 18-21 days of the Paid Time Off (PTO) a year based on the tenure
- 12 Public Holidays
- Paid Parental leave
- Pre-tax commuter benefits
- MTV - [Free] Electric Car Charging Station
General Description of Other Compensation
"Other Compensation" includes, but is not limited to, bonuses, equity, or other forms of compensation that would be offered to the hired applicant in addition to their established salary range or wage scale.
Recruitment Process
- Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer
- The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
- Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.
Details to Consider
- This job posting may be closed prior to the stated end date for application if all openings are filled.
- Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.
- Those eligible for employment protection (recipients of veteran's benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws.
Privacy Notice
- Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/
Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, or gender (including pregnancy, gender identity, gender expression, sexual orientation, transgender status), national origin, age, disability, medical condition, HIV/AIDS or Hepatitis C status, marital status, military or veteran status, use of a trained dog guide or service animal, political activities, or affiliations, citizenship, or any other characteristic or class protected by the laws or regulations in the locations where we operate. If you need assistance and/or reasonable accommodation in the recruiting process due to a disability, please contact us at usrecruiting@coupang.com.
Job Requisition ID: R0078747
See All 6 Back End Developer Jobs in Washington
Find roles in Washington that match your experience and apply in just a few clicks.
Find Back End Developer JobsBack End Developer Jobs by City in Washington
Where Washington roles are concentrated, by current openings.
Back End Developer Job Market in Washington
A snapshot from current Washington openings, updated as new roles post.
Who's Hiring
Top Industries Hiring
- Technology & Software
What Washington Employers Look For
The qualifications that appear most often in back end developer jobs across Washington.
- Bachelor's degree in computer science, software engineering, or a related technical field
- Proficiency in one or more back end languages such as Java, Python, Go, or C#
- Experience designing and consuming RESTful APIs and microservices architectures
- Hands-on work with cloud platforms, particularly AWS or Azure, in production environments
- Familiarity with relational and NoSQL databases including PostgreSQL, MySQL, or DynamoDB
- Understanding of CI/CD pipelines, version control with Git, and containerization using Docker or Kubernetes
Back End Developer Jobs in Washington: Frequently Asked Questions
How do you become a back end developer in Washington?
Back end development has no state-issued license in Washington, so the path runs through education and demonstrated skills. Most Washington employers accept a bachelor's degree in computer science or software engineering, though strong candidates also come through accredited coding bootcamps and community college programs at institutions like Bellevue College or Seattle Central College. Building a portfolio of real projects, contributing to open-source work, and earning cloud certifications from AWS or Microsoft strengthens any application considerably.
How much do back end developers make in Washington?
Back end developers in Washington earn a median of about $166,540 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $96,810 for the lowest 10% to over $255,350 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire back end developers in Washington?
Employers hiring back end developers in Washington right now include Logic, Coupang, and Tillster, based on current listings on Migrate Mate as of October 2026. Washington's concentration of major tech headquarters and cloud-platform operators means back end roles here tend to focus on large-scale distributed systems and high-throughput services.
Which Washington cities have the most back end developer jobs?
Seattle have the most back end developer openings in Washington. Seattle generates the largest share by far due to its dense cluster of tech headquarters, high-growth startups, and enterprise software firms, while Bellevue and Redmond pull strong numbers from major campus operations that house substantial engineering teams just across Lake Washington.
Are there remote back end developer jobs in Washington?
Yes, and more than most fields. About 50% of back end developer openings tied to Washington are remote or hybrid as of October 2026, reflecting how well the work translates to distributed teams. Fully remote roles appear most often in API development, platform engineering, and cloud infrastructure, where output is measured in deployments and system reliability rather than physical presence.
How can I get hired as a back end developer in Washington with little or no experience?
The most realistic entry path is an associate or junior developer role, often reached through an internship or new-grad program at Washington's large tech employers. Amazon, Microsoft, and Boeing all run structured early-career programs that hire candidates without professional experience when they demonstrate strong fundamentals. Adjacent roles like QA engineer, DevOps associate, or technical support specialist at the same companies frequently serve as internal stepping stones. A portfolio of deployed projects, an AWS Cloud Practitioner or Microsoft Azure Fundamentals certification, and a computer science degree or completed bootcamp from a Washington institution meaningfully improve the odds.
Where can I find and apply to back end developer jobs in Washington?
You can find and apply to back end developer jobs in Washington on Migrate Mate, which lists current openings across the state. Find roles that fit your experience and location and apply directly from each listing.
See All 6 Back End Developer Jobs in Washington
Find roles in Washington that match your experience and apply in just a few clicks.
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