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

CrowdStrike

Backend Engineer III (Hybrid)

Redmond, WA · Hybrid

This role is for an experienced mid-level backend microservices developer adept with cloud engineering principles. Your passion and meticulous attention to performance, reliability and scalability ...

Aurelian

Staff Backend Engineer

Seattle, WA · On-site

$200K - $300K/yr

When AVA detects an emergency mid-call, it transfers the caller to a telecommunicator and passes ... We're hiring a Staff Backend Engineer to help build out the core systems that make up the Aurelian ...

Aurelian

Senior Backend Engineer

Seattle, WA · On-site

$160K - $220K/yr

When AVA detects an emergency mid-call, it transfers the caller to a telecommunicator and passes ... We're hiring a Senior Backend Engineer to help build out the core systems that make up the Aurelian ...

Collabera

Senior Backend .Net Developer

Redmond, WA

$135K - $175K/yr

... mid-size companies to meet their talent needs with high quality IT resources through Staff ... Qualifications Senior Backend .Net Developer Additional Information To know more about this ...

WEX

Senior Backend Engineer - AI Platform

Seattle, WA · On-site +1

$139K - $183K/yr

Conduct code reviews (comment, approve, seek revisions, merge), mentor junior and mid-level ... Proficiency in backend development, with expertise in Java or C#, frameworks like SpringBoot ...

eNett

Senior Backend Engineer - AI Platform

Seattle, WA · On-site +1

$139K - $183K/yr

Conduct code reviews (comment, approve, seek revisions, merge), mentor junior and mid-level ... Proficiency in backend development, with expertise in Java or C#, frameworks like SpringBoot ...

Level

Senior Full-Stack Mobile Engineer

Bellevue, WA · On-site

$149K - $187K/yr

... features and backend services that enhance student engagement and experience. Your work will ... and developer experience. • Identify and address technical debt, production issues, and ...

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All JobsMid Backend Developer JobsMid Backend Developer Jobs in Seattle, WA

Mid Backend Developer information

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How much do mid backend developer jobs pay per hour?

As of Jul 26, 2026, the average hourly pay for mid backend developer in Seattle, WA is $65.70, according to ZipRecruiter salary data. Most workers in this role earn between $53.89 and $77.69 per hour, depending on experience, location, and employer.

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

AspectMid Backend DeveloperBackend Developer
Experience LevelMid-level (2-4 years)Entry to Mid-level (0-3 years)
Skills & CertificationsProficiency in server-side languages, databases, APIs; often familiar with cloud servicesBasic to intermediate backend skills, some familiarity with similar technologies
Work EnvironmentCollaborates on complex projects, often in teams with frontend and DevOpsWorks on foundational backend tasks, may be part of smaller teams or solo projects
Industry UsageCommon in tech companies, startups, and enterprise environmentsWidespread across various industries, including tech, e-commerce, and finance

The Mid Backend Developer typically has more experience and handles more complex backend systems compared to a Backend Developer. While both roles require similar foundational skills, the mid-level position involves greater responsibility, problem-solving, and collaboration on larger projects.

What are Mid Backend Developers?

Mid Backend Developers are software engineers with intermediate experience who focus on building, maintaining, and optimizing the server-side components of web or mobile applications. They typically work with databases, APIs, server logic, and integration with front-end systems. Mid-level developers have a solid understanding of programming languages such as Java, Python, Node.js, or Ruby and are expected to contribute to code reviews, troubleshoot issues, and implement new features under minimal supervision. Their role bridges the gap between junior developers, who need more guidance, and senior developers, who handle architecture and high-level decisions.

What are the key skills and qualifications needed to thrive as a Mid Backend Developer, and why are they important?

To excel as a Mid Backend Developer, you need strong programming skills in languages such as Java, Python, or Node.js, along with a solid understanding of databases and API design, typically backed by a bachelor’s degree in computer science or related field. Familiarity with tools and systems like Git, RESTful APIs, Docker, and cloud platforms (e.g., AWS, Azure) is usually required. Problem-solving abilities, effective communication, and teamwork are crucial soft skills that set high performers apart. These competencies ensure efficient development, maintainability, and seamless integration of backend services in dynamic technical environments.

What are some typical challenges a Mid Backend Developer might face when integrating new technologies into existing systems?

As a Mid Backend Developer, one common challenge is ensuring that new technologies or frameworks integrate smoothly with legacy systems without disrupting current operations. This often involves understanding both the old and new codebases, data migration, and dealing with compatibility issues. Collaborating closely with frontend developers, DevOps, and QA teams is essential to address potential bottlenecks and maintain performance. Additionally, thorough testing and documentation are crucial to ensure long-term stability and maintainability.
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What job categories do people searching Mid Backend Developer jobs in Seattle, WA look for? The top searched job categories for Mid Backend Developer jobs in Seattle, WA are:
What cities near Seattle, WA are hiring for Mid Backend Developer jobs? Cities near Seattle, WA with the most Mid Backend Developer job openings:
Mid Backend Developer jobs near you
Infographic showing various Mid Backend Developer job openings in Seattle, WA as of July 2026, with employment types broken down into 87% Full Time, 7% Part Time, 1% Temporary, and 5% Contract. Highlights an 77% Physical, 5% Hybrid, and 18% Remote job distribution, with an average salary of $136,661 per year, or $65.7 per hour.

Principal Backend Engineer

Data Squared USA Inc

Seattle, WA • On-site

Full-time

Posted 29 days ago

Job description


reView is a distributed graph-native analytics and reasoning platform built on a microservices architecture. At its core is a semantic execution and verification system that transforms ambiguous analytical questions into explainable, governed graph computations.
This role focuses on building backend systems that preserve semantic correctness across ingestion workflows, graph execution, distributed services, and analytical reasoning paths.
In our platform, correctness is not just whether an API returns a response. Correctness means:
  • graph relationships resolve to the intended entities,

  • traversals preserve the meaning of the underlying data,

  • derived computations remain explainable and reproducible,

  • distributed workflows maintain consistency under load and failure,

  • and analytical results are verifiably correct rather than merely plausible.

This is a backend and systems engineering role centered on graph execution, semantic reasoning infrastructure, distributed workflows, and correctness-oriented platform architecture.
The role is best suited for engineers who enjoy distributed systems, graph execution, query semantics, and correctness-oriented platform design.
Scope
  • Backend and systems-focused engineering role

  • Design and evolution of semantic execution, graph validation, and reasoning infrastructure

  • Close collaboration with platform, ingestion, and graph engineering teams

  • Containerized local development and shared staging environments for integration and execution validation

Leveling: At the mid level, you will implement and extend core platform behaviors and correctness mechanisms. At the senior level, you will shape execution semantics, system architecture, and how correctness is enforced across the platform.
Requirements
Semantic Execution & Backend Systems
  • Design and implement backend services for graph execution and reasoning workflows

  • Build and optimize graph traversal, query planning, and computation behaviors over connected datasets

  • Develop validation and regression coverage for critical execution paths and service boundaries

  • Contribute to execution semantics, identity resolution, and consistency guarantees across distributed workflows

Execution & Workflow Validation
  • Validate end-to-end platform flows (ingestion → graph → query → result)

  • Test distributed behavior under retries, partial failures, and asynchronous execution

  • Ensure consistency and reproducibility across services and graph workflows

Data & Graph Validation
  • Verify correctness and consistency of node and relationship creation in Neo4j / Memgraph

  • Design mechanisms that preserve identity, traversal correctness, and semantic consistency across ingestion and execution flows

  • Define and evolve graph test fixture strategies, including data seeding, isolation, and repeatability

Performance & Reliability
  • Run recurring load and stress tests against ingestion, graph execution, and query workflows

  • Identify and resolve bottlenecks across APIs, graph queries, and distributed execution paths

  • Collaborate with engineers on scaling behavior in Kubernetes environments

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