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Backend Software Developer Jobs in Seattle, WA (NOW HIRING)

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 ...

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 ...

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

... 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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Software Developer II

Bellevue, WA · Remote

$90K - $120K/yr

We are seeking a highly skilled and motivated Software Developer with strong proficiency in Python ... Design, develop, and maintain backend systems using Python and SQL. * Collaborate with cross ...

The Software Engineer - Backend will be responsible for writing production-ready code, designing scalable services, and integrating with external systems to enhance the company's offerings.

Senior Software Engineer (Backend)

Seattle, WA · On-site +1

$140K - $200K/yr

About this role As a Sr backend software engineer at Aerostrat, you'll play a critical role in expanding our infrastructure and APIs to ensure we can scale with our customers. As a member of our ...

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Backend Software Developer information

See Seattle, WA salary details

$13

$65

$96

How much do backend software developer jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for backend software developer in Seattle, WA is $65.74, according to ZipRecruiter salary data. Most workers in this role earn between $53.94 and $77.74 per hour, depending on experience, location, and employer.

What does a backend software developer do?

A Backend Software Developer is responsible for building and maintaining the server-side logic, databases, and application programming interfaces (APIs) that power web and mobile applications. They ensure that data is properly stored, secured, and retrieved, and that the backend communicates effectively with the frontend or user-facing side. Backend developers often work with programming languages like Java, Python, Ruby, or Node.js, and use frameworks and tools to optimize application performance and scalability. Their work is crucial for ensuring that applications run smoothly, handle user requests efficiently, and remain secure.

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

To thrive as a Backend Software Developer, you need strong programming skills (such as Java, Python, or Node.js), a solid understanding of algorithms, data structures, and database management, often supported by a degree in computer science or a related field. Familiarity with frameworks (like Spring or Django), RESTful APIs, version control systems (such as Git), and cloud platforms is typically expected, along with relevant certifications being beneficial. Problem-solving abilities, attention to detail, and effective communication are the soft skills that set outstanding backend developers apart. These skills and qualities are crucial for building scalable, reliable, and secure server-side applications that meet business and user needs.

What are some common challenges faced by backend software developers when integrating new technologies into existing systems?

Backend Software Developers often encounter challenges when integrating new technologies, such as ensuring compatibility with legacy systems, maintaining data integrity during migrations, and minimizing downtime for end users. They must also carefully manage dependencies and address potential security vulnerabilities introduced by new components. Collaboration with DevOps, frontend teams, and QA is crucial to ensure smooth deployment and comprehensive testing throughout the integration process.

What is the difference between Backend Software Developer vs Frontend Software Developer?

AspectBackend Software DeveloperFrontend Software Developer
Primary FocusServer-side logic, databases, APIsUser interface, client-side interactions
Required SkillsProgramming languages like Java, Python, SQLHTML, CSS, JavaScript, frameworks like React or Angular
Work EnvironmentServer infrastructure, cloud servicesDesign tools, browser testing
Common UsageBuilding and maintaining backend systemsCreating engaging user interfaces

Backend Software Developers focus on server-side development, managing databases, and APIs, while Frontend Software Developers work on the visual and interactive aspects of websites and applications. Both roles are essential in full-stack development but differ in their technical skills and daily tasks.

What are the most commonly searched types of Backend Software Developer jobs in Seattle, WA?

The most popular types of Backend Software Developer jobs in Seattle, WA are:

What are popular job titles related to Backend Software Developer jobs in Seattle, WA?

For Backend Software Developer jobs in Seattle, WA, the most frequently searched job titles are:

Infographic showing various Backend Software Developer job openings in Seattle, WA as of August 2026, with employment types broken down into 72% Full Time, and 28% Contract. Highlights an 94% In-person, and 6% Remote job distribution, with an average salary of $136,661 per year, or $65.7 per hour.

Backend Software Development Engineer - Mid/Senior/Lead/Principal

Bellevue, WA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 6 days ago


Key responsibilities

  • Develop, implement, and tune backend applications and APIs across various cloud services and platforms.

  • Integrate internal and external systems, handle large data sets, and ensure system performance and scalability.

  • Evaluate code for correctness, security, and performance, and participate in on-call rotations to maintain service availability.


Salesforce rating

8.1

Company rating: 8.1 out of 10

Based on 58 frontline employees who took The Breakroom Quiz

114th of 247 rated software companies


Job description

To get the best candidate experience, please consider applying for a maximum of 3 roles within 12 months to ensure you are not duplicating efforts.

Job Category

Software Engineering

Job Details

About Salesforce

Salesforce is the #1 AI CRM, where humans with agents drive customer success together. Here, ambition meets action. Tech meets trust. And innovation isn't a buzzword - it's a way of life. The world of work as we know it is changing and we're looking for Trailblazers who are passionate about bettering business and the world through AI, driving innovation, and keeping Salesforce's core values at the heart of it all.

Ready to level-up your career at the company leading workforce transformation in the agentic era? You're in the right place! Agentforce is the future of AI, and you are the future of Salesforce.

The Experience
Note: By applying to the Software Backend Development posting, recruiters and hiring managers across the organization hiring for Backend Software Engineers will review your resume. Our goal is for you to apply once and have your resume reviewed by multiple hiring teams. Positions available at all levels: Mid Level, Senior, Lead and Principal.
IN SCHOOL OR GRADUATED WITHIN THE LAST 12 MONTHS? PLEASE VISIT FUTURE FORCE FOR OPPORTUNITIES
Salesforce has opportunities for experienced software developers who want their lines of code to have significant and measurable positive impact for users, the company's bottom line, and the industry. You will be working with a group of world-class engineers to build the breakthrough features our customers will love, adopt, and use while keeping our trusted CRM platform stable and scalable.
The software engineer role at Salesforce encompasses architecture, design, implementation, and testing to ensure we build products right and release them with high quality. Equally important is advanced prompt engineering - the ability to write precise, structured prompts and cultivate the system context that makes AI outputs reliable, secure, and production-ready.
We pride ourselves on writing high quality, maintainable code that strengthens the stability of the product and makes our lives easier. We embrace the hybrid model and celebrate the individual strengths of each team member while cultivating everyone on the team to grow into the best version of themselves. We believe that autonomous teams with the freedom to make decisions will empower the individuals, the product, the company, and the customers they serve to thrive.
What You'll Actually Be Doing
  • Backend application development for Marketing/Commerce/Sales/Big Data/Service/Einstein/MuleSoft/Platform/Industries Clouds/Slack and Heroku
  • Design, implement, and tune robust APIs and API framework related features that perform and scale in a multi-tenant environment.
  • Experience handling large data sets in the cloud (e.g. GCP, AWS, Alibaba and/or Azure platforms)
  • Integration with internal/external systems
  • Test driven development practices as well as CI/CD tools and its usage
  • Build and ship high-quality, production-grade software using modern engineering practices, with AI as a core part of your development workflow by pushing the boundaries of AI development tools (Cursor, Windsurf, Claude, OpenAI API) to deliver secure, optimized, and high-quality code.
  • Design and orchestrate complex systems where AI agents integrate seamlessly into human workflows, driving efficiency and innovation at scale.
  • Contribute to building and maintaining the shared system context, an explicit repository of system designs, constraints, and standards that enables AI to operate accurately and reliably.
  • Critically evaluate code (Human or AI-generated) for correctness, quality, security, and performance
  • For Big Data roles: Working with Phoenix, HBase, MapReduce, Yarn, Kafka, Spark, Hive, Presto, or equivalent large-scale distributed systems technologies on a modern containerized deployment stack

You're Our Person If...
  • A related technical degree required
  • 3+ years backend software development experience
  • Deep knowledge of object oriented programming languages: Java, C++, Go, C#, Ruby, Scala, Python, Node.JS, or JavaScript
  • Broad knowledge of web standards relating to APIs such as REST, SOAP, XML, WSDL, HTTP, JSON, etc.
  • Experience with Spring, gRPC, REST and the HTTP protocol
  • Experience with Agile development methodology
  • A demonstrated, genuine AI-first approach to engineering. Using AI to move faster, build fluency across the stack, and contribute well beyond your core specialty.
  • Experience using AI tools (e.g., Claude Code, GitHub Copilot, Codex, Cursor, etc.) in development workflows
  • Advanced prompt engineering skills and the ability to write precise, structured prompts and cultivate the system context that makes AI outputs reliable, secure, and production-ready.
  • Participate in the team's on-call rotation to address complex problems in real-time and keep services operational and highly available
  • Office-Flex: work in-person three days per week; or 10 days per quarter for some engineering teams.

Unleash Your Potential

When you join Salesforce, you'll be limitless in all areas of your life. Our benefits and resources support you to find balance andbe your best, and our AI agents accelerate your impact so you cando your best. Together, we'll bring the power of Agentforce to organizations of all sizes and deliver amazing experiences that customers love. Apply today to not only shape the future - but to redefine what's possible - for yourself, for AI, and the world.

Accommodations

If you need a reasonable accommodation during the application or the recruiting process, please submit a request via this Accommodations Request Form.

Please note that Salesforce uses artificial intelligence (AI) tools to help our recruiters assess and evaluate candidates' resumes and qualifications throughout the recruiting process. Humans will always make any candidate selection and hiring decisions. Please see our Candidate Privacy Statement for more information about how we use your personal data and your rights, including with regard to use of AI tools and opt out options.

Posting Statement

Salesforce is an equal opportunity employer and maintains a policy of non-discrimination with all employees and applicants for employment. What does that mean exactly? It means that at Salesforce, we believe in equality for all. And we believe we can lead the path to equality in part by creating a workplace that's inclusive, and free from discrimination. Know your rights: workplace discrimination is illegal. Any employee or potential employee will be assessed on the basis of merit, competence and qualifications - without regard to race, religion, color, national origin, sex, sexual orientation, gender expression or identity, transgender status, age, disability, veteran or marital status, political viewpoint, or other classifications protected by law. This policy applies to current and prospective employees, no matter where they are in their Salesforce employment journey. It also applies to recruiting, hiring, job assignment, compensation, promotion, benefits, training, assessment of job performance, discipline, termination, and everything in between. Recruiting, hiring, and promotion decisions at Salesforce are fair and based on merit. The same goes for compensation, benefits, promotions, transfers, reduction in workforce, recall, training, and education.

In the United States, compensation offered will be determined by factors such as location, job level, job-related knowledge, skills, and experience. Certain roles may be eligible for incentive compensation, equity, and benefits. Salesforce offers a variety of benefits to help you live well including: time off programs, medical, dental, vision, mental health support, paid parental leave, life and disability insurance, 401(k), and an employee stock purchasing program. More details about company benefits can be found at the following link: https://www.salesforcebenefits.com.Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring, Salesforce will consider for employment qualified applicants with arrest and conviction records.At Salesforce, we believe in equitable compensation practices that reflect the dynamic nature of labor markets across various regions. The typical base salary range for this position is $117,200 - $313,700 annually. In select cities within the San Francisco and New York City metropolitan area, the base salary range for this role is $141,200 - $344,700 annually. The range represents base salary only, and does not include company bonus, incentive for sales roles, equity or benefits, as applicable.

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