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

DAT

Staff Backend Software Engineer

Seattle, WA

DAT.com/company Job Application Deadline: 10/31/2026 Candidate profile As a Staff Backend Software Engineer, you will be a key technical leader, responsible for the design, development, and delivery ...

DAT

Staff Backend Software Engineer

Seattle, WA · On-site

DAT.com/company Job Application Deadline: 10/31/2026 Candidate profile As a Staff Backend Software Engineer, you will be a key technical leader, responsible for the design, development, and delivery ...

Docugami

Back End Software Engineer

Kirkland, WA · On-site

... software product businesses. 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 ...

Docugami

Back End Software Engineer

Kirkland, WA · On-site +1

... software product businesses. 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 ...

LVT

Staff Software Engineer - Backend

Seattle, WA · Hybrid

$213K - $256K/yr

ABOUT THIS ROLE As a Staff Backend Software Engineer at LVT, you will serve as a primary technical authority driving the design, performance, and scaling of our core backend architecture. Partnering ...

OpenAI

Backend Software Engineer (Evals)

Seattle, WA · On-site

$266K - $445K/yr

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 ...

LVT

Staff Software Engineer - Backend

Seattle, WA · On-site

ABOUT THIS ROLE As a Staff Backend Software Engineer at LVT, you will serve as a primary technical authority driving the design, performance, and scaling of our core backend architecture. Partnering ...

LVT

Staff Software Engineer - Backend

Seattle, WA · Hybrid

ABOUT THIS ROLE As a Staff Backend Software Engineer at LVT, you will serve as a primary technical authority driving the design, performance, and scaling of our core backend architecture. Partnering ...

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

Backend Software Engineer information

See Seattle, WA salary details

$68.8K

$168K

$226.5K

How much do backend software engineer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for backend software engineer in Seattle, WA is $168,040.00, according to ZipRecruiter salary data. Most workers in this role earn between $141,100.00 and $195,700.00 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 Seattle, WA?

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

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

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

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

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

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

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

Backend Software Engineer jobs near you
Infographic showing various Backend Software Engineer job openings in Seattle, WA as of August 2026, with employment types broken down into 86% Full Time, 9% Part Time, and 5% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $168,137 per year, or $80.8 per hour.

Backend Software Engineer - GenAI

Seattle, WA • On-site

Rune Technologies
See more jobs at Rune Technologiesexternal

Full-time

Re-posted 5 days ago

Job description

Job Summary:
Rune Technologies builds mission-critical software for military logistics and sustainment. As a Backend Software Engineer, you will design and implement production GenAI systems to support advanced logistics algorithms and modern AI-enabled software for military applications.
Responsibilities:
• Design, build, and deploy production-grade GenAI systems -- including RAG architectures, vector databases, LLM integrations, and tool-call frameworks -- in support of Saga, Rune's AI agentic product layer.
• Build and maintain evaluation and testing harnesses to validate LLM output quality and catch regressions in production.
• Collaborate with the broader platform and product teams to integrate AI capabilities into TyrOS workflows.
• Participate in technical design discussions and code reviews, contributing to a culture of engineering rigor and mission focus.
• Triage and debug issues in production, ensuring reliability and rapid iteration in support of operational needs.
• Work closely with engineers, product managers, and military stakeholders to ensure AI systems meet real-world sustainment requirements.
Qualifications:
Required:
• 4+ years of experience in software engineering, with a strong backend foundation -- distributed systems, APIs, production-grade software.
• Hands-on experience building GenAI systems: vector databases, LLM integration, RAG architectures, and evaluation harnesses for LLM output.
• Familiarity with tool routing, tool-call validation, and common LLM failure modes.
• Understanding of the science underlying the systems you build -- not just how to wire them together, but why they work and where they break.
• Background at an AI-native company, or a clear transition from backend engineering into AI specialization.
• Strong sense of ownership and a bias for action.
Preferred:
• Experience with fine-tuning or model evaluation workflows.
• Familiarity with AI infrastructure: embedding pipelines and inference optimization.
• Experience working on software in defense, aerospace, or other complex operational domains.
• Experience deploying software to production environments, including cloud (AWS, Kubernetes) and edge infrastructure.
Company:
Rune Technologies develops AI-enabled predictive logistics solutions for military operations. Founded in 2024, the company is headquartered in Arlington, USA, with a team of 51-200 employees. The company is currently Growth Stage.

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