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Backend Software Engineer Jobs in Bellevue, WA (NOW HIRING)

PSRTEK

Senior Software Engineer - Backend

Bellevue, WA · On-site

$138K - $182K/yr

Senior Software Engineer - Backend Bellevue, WA Long Term Contract What You Will Do: Primary Focus: Scalable API and service development, data storage, performance optimization, and integration with ...

Hive

Software Engineer - Backend

Seattle, WA · On-site

$120K - $180K/yr

Hive also offers turnkey software applications powered by proprietary AI models and datasets ... core backend systems by suggesting and executing improvements * Improve engineering standards ...

Hive

Software Engineer - Backend

Seattle, WA · On-site

$120K - $180K/yr

Hive also offers turnkey software applications powered by proprietary AI models and datasets ... core backend systems by suggesting and executing improvements * Improve engineering standards ...

Constellation Space

Software Engineer

Seattle, WA · On-site

$120K - $180K/yr

You will architect robust backend systems that allow our operators to communicate with, simulate ... S. in Computer Science, Software Engineering, or related discipline. * 3+ years of professional ...

Netpace Inc

Senior Software Engineer---Back-End

Bellevue, WA · On-site

$137K - $181K/yr

They are seeking a Senior Software Engineer to develop innovative solutions and collaborate with various teams to create prototypes. Responsibilities : • Developing back-end server applications ...

Cognitiv

Staff Software Engineer, Backend

Bellevue, WA · On-site

The Role We're hiring a Staff Software Engineer (Backend) to lead the technical direction of the systems powering our next-generation, pixel-less ad targeting platform. You'll architect, design, and ...

Hiya

Senior Software Engineer

Seattle, WA · On-site

$139K - $183K/yr

As a Senior Backend Software Engineer, you'll design and build the backend services and APIs that power Hiya's next-generation voice products. This is a backend-first role with opportunities to work ...

Cognitiv

Staff Software Engineer, Backend

Bellevue, WA · On-site

The Role We're hiring a Staff Software Engineer (Backend) to lead the technical direction of the systems powering our next-generation, pixel-less ad targeting platform. You'll architect, design, and ...

Cognitiv

Staff Software Engineer, Backend

Bellevue, WA · On-site

The Role We're hiring a Staff Software Engineer (Backend) to lead the technical direction of the systems powering our next-generation, pixel-less ad targeting platform. You'll architect, design, and ...

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Showing results 41-60

All JobsBackend Software Engineer JobsBackend Software Engineer Jobs in Bellevue, WA

Backend Software Engineer information

See Bellevue, WA salary details

$68.3K

$166.7K

$224.6K

How much do backend software engineer jobs pay per year?

As of Sep 5, 2026, the average yearly pay for backend software engineer in Bellevue, WA is $166,656.00, according to ZipRecruiter salary data. Most workers in this role earn between $140,000.00 and $194,100.00 per year, depending on experience, location, and employer.

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

To thrive as a Backend Software Engineer, you need strong programming skills in languages like Java, Python, or Node.js, a solid understanding of data structures, algorithms, and experience with database management, usually supported by a degree in computer science or related fields. Familiarity with tools such as Git, RESTful APIs, cloud platforms (AWS, Azure), and frameworks like Spring or Django is highly valued, and relevant certifications can be advantageous. Problem-solving ability, attention to detail, and effective teamwork are standout soft skills for this position. These skills and qualities are essential to build, maintain, and optimize robust, scalable server-side applications that meet user and business needs.

What are some typical challenges a backend software engineer faces when integrating new services into an existing system?

Backend Software Engineers often encounter challenges such as ensuring compatibility between new services and legacy systems, maintaining data integrity during migrations, and managing increased system complexity. Effective integration also requires thorough testing to prevent disruptions to existing functionalities and close collaboration with frontend engineers, DevOps, and QA teams. Proactively communicating across teams and adhering to clear documentation standards can help mitigate integration risks and ensure a smoother deployment process.

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

AspectBackend Software EngineerFrontend Software Engineer
Primary FocusServer-side development, databases, APIsClient-side development, UI/UX, visual elements
Required SkillsProgramming languages like Java, Python, SQL; server managementHTML, CSS, JavaScript, frameworks like React or Angular
Work EnvironmentBackend teams, server infrastructure, cloud servicesDesign teams, user interface, web browsers
Common UsageBuilding and maintaining server logic and databasesCreating interactive and visually appealing web pages

While both roles involve web development, Backend Software Engineers focus on server-side logic and data management, whereas Frontend Software Engineers specialize in creating the visual and interactive aspects of websites. Both roles are essential in full-stack development and often collaborate closely.

Are backend software engineers still in demand?

Backend software engineers are currently in high demand due to the ongoing growth of web applications, cloud services, and digital infrastructure. Skills in programming languages like Java, Python, and experience with cloud platforms such as AWS or Azure increase employability in this field.

What is a backend software engineer?

A backend software engineer designs, develops, and maintains the server-side components of applications, focusing on databases, server logic, and APIs. They often work with programming languages like Java, Python, or Node.js and use tools such as databases and version control systems to ensure the functionality and performance of web services.

What's a typical backend software engineer salary?

The average salary for a backend software engineer varies by experience and location but generally ranges from $80,000 to $130,000 annually in many regions. Senior roles with specialized skills in languages like Java, Python, or cloud platforms can earn over $150,000. Factors such as company size, industry, and certifications also influence compensation.

What are the most commonly searched types of Backend Software Engineer jobs in Bellevue, WA?

The most popular types of Backend Software Engineer jobs in Bellevue, WA are:

What are popular job titles related to Backend Software Engineer jobs in Bellevue, WA?

For Backend Software Engineer jobs in Bellevue, WA, the most frequently searched job titles are:

What job categories do people searching Backend Software Engineer jobs in Bellevue, WA look for?

The top searched job categories for Backend Software Engineer jobs in Bellevue, WA are:

What cities near Bellevue, WA are hiring for Backend Software Engineer jobs?

Cities near Bellevue, WA with the most Backend Software Engineer job openings:

Backend Software Engineer jobs near you
Infographic showing various Backend Software Engineer job openings in Bellevue, WA as of August 2026, with employment types broken down into 81% Full Time, 15% Part Time, and 4% Contract. Highlights an 84% Physical, 5% Hybrid, and 11% Remote job distribution, with an average salary of $166,656 per year, or $80.1 per hour.

Senior Software Engineer - Backend

PSRTEK

Bellevue, WA • On-site

$138K - $182K/yr

Contractor

Re-posted 15 days ago

Job description


Senior Software Engineer - Backend 

Bellevue, WA

Long Term Contract 

What You Will Do:

Primary Focus:  Scalable API and service development, data storage, performance optimization, and integration with LLM services. Designing, testing, and optimizing prompts and prompt flows for LLMs and RAG systems.

Must Have: Strong experience in one or more server languages (Java/.NET), REST/GraphQL, relational + caching (Postgres/Redis), and message queues. Practical experience with major LLMs (OpenAI, Anthropic, LLaMA family), prompt templates, prompt chaining and evaluation metrics.

Engineering Practices: TDD/unit integration tests, API documentation, observability.

Integration: Build secure, low‑latency endpoints for prompt services, manage batching/rate limits, implement auth/ACL.

Deliverables: Well‑tested service code, API specs, deployment manifests, performance benchmarks, prompt library, A/B evaluation reports, reproducible test harnesses, and integration guides for backend teams.

Safety & Cost Guardrails: Hallucination mitigation, prompt‑cost optimization, PHI‑aware handling. 

What You Will Bring:

A high‑impact role with visibility across engineering and product.

Opportunity to lead backend initiatives that bridge scalable service design with GenAI workflows.

A collaborative, growth‑oriented engineering culture.

Experience working at the intersection of backend systems and LLM integrations.

Opportunity to convert to full‑time with the client. 


PSRTEK is a reputed technology recruitment and IT staffing brand with a global footprint and an admired client base. As an ideas and innovation powerhouse with a culture of excellence, we bring remarkable expertise and deliver powerfully transformative results.