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

Blue Sky

Senior Backend Developer

Seattle, WA · On-site

$200 - $270/hr

As a Senior Backend Developer, you'll be responsible for building and maintaining the infrastructure that powers moderation, anti-spam, and user safety. You'll work closely with our internal ...

Nametag

Senior Backend Engineer

Seattle, WA · On-site

$120K - $190K/yr

Senior Backend Engineer Remote, US About Nametag Nametag helps companies verify the real person ... Build internal tools and dashboards that improve operational visibility and developer workflows.

Otter

Senior Backend Engineer

Seattle, WA · On-site

As a Senior Backend Engineer, you will design and optimize systems for mission-critical applications and work on a product that saves customers money on restaurant supplies. Responsibilities : • As ...

Programmers.io

Senior .NET Backend Developer

Seattle, WA · On-site

$137K - $178K/yr

We are looking for a Senior .NET Backend Developer with at least 7 years of experience developing backend applications using C#, .NET, and GoLang. The ideal candidate should also have experience with ...

Aurelian

Senior Backend Engineer

Seattle, WA · On-site

$160K - $220K/yr

We're hiring a Senior Backend Engineer to help build out the core systems that make up the Aurelian platform. You will solve complex, technical challenges ranging from optimizing latency in realtime ...

Worky

Senior Backend Engineer

Bellevue, WA · On-site

$162.16 - $237.84/hr

... developer integrations, and family management features. Identity team members are a core team that ... Connect front end user flows with backend services in efficient and reusable patterns to support ...

ATOMS Careers page

Senior Backend Engineer

Seattle, WA · On-site

$167K - $230K/yr

What you'll do * As a Backend Engineer, you'll design, implement, and optimize systems that power mission-critical applications. Your role will adapt to your strengths and interests, with ...

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Senior Backend Developer information

See Seattle, WA salary details

$72.8K

$159.1K

$216.8K

How much do senior backend developer jobs pay per year?

As of Aug 27, 2026, the average yearly pay for senior backend developer in Seattle, WA is $159,138.00, according to ZipRecruiter salary data. Most workers in this role earn between $137,100.00 and $178,100.00 per year, depending on experience, location, and employer.

What does a senior backend developer do?

A Senior Backend Developer is responsible for designing, building, and maintaining the server-side logic of web applications. They work with databases, APIs, and server infrastructure to ensure that applications run smoothly, securely, and efficiently. In addition to writing robust code, they often mentor junior developers, contribute to architectural decisions, and collaborate with frontend teams to deliver seamless user experiences. Their expertise is crucial for scaling applications and implementing best practices in software development.

What are the key skills and qualifications needed to thrive as a senior backend developer, and why are they important?

To thrive as a Senior Backend Developer, you need advanced proficiency in server-side programming languages (such as Java, Python, or Node.js), deep understanding of API design, and experience with database management, often supported by a degree in computer science or related field. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and relevant certifications in backend technologies are commonly required. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with cross-functional teams and mentor junior developers. These competencies ensure robust, scalable backend systems and drive successful project delivery in complex technical environments.

What are common challenges senior backend developers face when leading complex projects, and how can they address them?

Senior Backend Developers often encounter challenges such as integrating legacy systems with new technologies, ensuring scalability under increased load, and coordinating cross-functional teams for seamless feature delivery. Addressing these challenges typically involves proactive architectural planning, clear communication with frontend and DevOps teams, and adopting best practices like code reviews and automated testing. Staying updated on emerging technologies and fostering a culture of knowledge sharing within the team also help in overcoming technical obstacles and driving successful project outcomes.

What is the difference between Senior Backend Developer vs Backend Developer?

AspectSenior Backend DeveloperBackend Developer
Required Experience5+ years, leadership skills1-3 years, foundational skills
ResponsibilitiesDesign architecture, mentor juniors, optimize systemsImplement features, fix bugs, write code
Skills & CertificationsAdvanced coding, system design, relevant certificationsBasic coding, database knowledge
Work EnvironmentCollaborates with cross-functional teams, often in larger projectsFocuses on individual tasks within projects

The main difference between a Senior Backend Developer and a Backend Developer lies in experience, responsibilities, and leadership. Senior Backend Developers typically have more years of experience, take on complex system design, and mentor junior staff, whereas Backend Developers focus on implementing features and fixing bugs. Both roles are essential in backend development teams, but the senior role involves more strategic and leadership duties.

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

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

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

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

What job categories do people searching Senior Backend Developer jobs in Seattle, WA look for?

The top searched job categories for Senior Backend Developer jobs in Seattle, WA are:

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

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

Senior Backend Developer jobs near you
Infographic showing various Senior Backend Developer job openings in Seattle, WA as of August 2026, with employment types broken down into 83% Full Time, 4% Part Time, and 13% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $159,138 per year, or $76.5 per hour.

Senior Backend Developer

Blue Sky

Seattle, WA • On-site

$200 - $270/hr

Other

Medical, Dental, Vision

Posted 4 days ago

Job description

Engineering Remote (overlap with PST) Full-time

Bluesky's vision is to make social more like the web itself. We're building a social media app , but beyond that, we've created a protocol that supports a broad ecosystem of applications and clients. Imagine a network of applications — from microblogging to photos to video to long-form writing — all interconnected and accessible with a shared identity.

As a Senior Backend Developer, you’ll be responsible for building and maintaining the infrastructure that powers moderation, anti-spam, and user safety. You’ll work closely with our internal operations and product team to build high-scale services for rapid detection and prevention of abuse.

Responsibilities:
  • Design, implement, and maintain high-volume pipelines and databases
  • Manage and create ETLs that power automated abuse-prevention
  • Assist with the scaling and implementation of the backends for internal tools
  • Work closely with engineers across the organization to integrate safety systems in all our products
  • Develop monitoring and observability solutions for data infrastructure
You might be a good fit if you:
  • Must have 10+ years of extensive experience with Go
  • Have strong fundamental programming and software engineering skills
  • Have built scalable backend systems (1M+ ops/sec) (e.g. data services, load balancers, etc.)
  • Have familiarity with the upper limits of operating systems, networks, and storage.
  • Have significant experience with database systems (e.g. Postgres, MySQL, SQLite)
  • Have some experience with other data stores (e.g. Scylla/Cassandra, Redis, ClickHouse)
  • Have some experience with search systems (e.g. Elasticsearch)
  • Like working on small, fast-moving teams
  • Previous experience working on infrastructure for social apps at large scale

We’re a fully remote team, but an overlap of working hours with PST is required, and for this role, proximity and willingness to travel to Seattle is a plus. P lease note, there may be an on-site component to these interviews.

  • We offer health, dental, and vision insurance.
Additional Notes:

The anticipated base salary range for this position is $200,000 - $270,000, excluding equity. Equity will be considered in the total compensation package. The final base salary for this role will be based on the individual’s geographic location, as well as experience level, skill set, training, licenses and certifications.

Senior Backend Developer · Remote (overlap with PST) · Full-time

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