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Senior Software Engineer Java Full Stack Jobs in Seattle, WA

PitchBook Data

Sr. Java Full Stack Engineer

Seattle, WA · On-site

$142K - $187K/yr

As a Senior Software Development Engineer on the Data Platform team, you will design and build the ... of Java development experience, including production microservices * 4+ years with Spring Boot ...

PitchBook Data

Sr. Java Full Stack Engineer

Seattle, WA · On-site

$142K - $187K/yr

As a Senior Software Development Engineer on the Data Platform team, you will design and build the ... of Java development experience, including production microservices * 4+ years with Spring Boot ...

Microsoft

Senior Software Engineer

Redmond, WA · On-site

$137K - $180K/yr

Do you enjoy designing and building full-stack products that deliver real value to Enterprise ... Hands-on experience with programming languages such as Python, C#, Java, C++, or equivalent ...

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Senior Software Engineer Java Full Stack information

See Seattle, WA salary details

$50.6K

$153.4K

$216.8K

How much do senior software engineer java full stack jobs pay per year?

As of Sep 9, 2026, the average yearly pay for senior software engineer java full stack in Seattle, WA is $153,373.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,300.00 and $179,800.00 per year, depending on experience, location, and employer.

What is a senior software engineer Java full stack?

Senior Software Engineer Java Full Stack professionals are experienced developers who work on both the front-end and back-end aspects of software applications using Java and related technologies. They are responsible for designing, developing, and maintaining complex software systems, ensuring all components work seamlessly together. These engineers often lead development teams, mentor junior developers, and make key architectural decisions to drive project success. Their expertise covers a wide range of technologies, including Java frameworks, databases, web services, and modern front-end tools.

What are the key skills and qualifications needed to thrive as a senior software engineer Java full stack?

To thrive as a Senior Software Engineer Java Full Stack, you need deep expertise in Java, front-end frameworks like Angular or React, RESTful APIs, and a bachelor's degree in computer science or a related field. Familiarity with tools such as Spring Boot, Docker, Git, CI/CD pipelines, and cloud platforms, along with relevant certifications, is highly advantageous. Leadership, effective communication, and problem-solving skills help you mentor junior developers and collaborate across teams. These skills are vital for delivering robust, scalable solutions and driving project success in dynamic development environments.

What opportunities for technical leadership and mentorship are available to senior software engineer Java full stack professionals?

As a Senior Software Engineer Java Full Stack, you often have opportunities to take on technical leadership roles such as leading project teams, architecting solutions, and setting coding standards. You may also mentor junior developers, conduct code reviews, and facilitate knowledge sharing within the team. These responsibilities not only help develop your leadership skills but also position you for advancement into roles like Technical Lead or Engineering Manager. Many organizations encourage senior engineers to participate in decision-making processes and cross-functional collaboration, further broadening your impact and career growth.

What is the difference between Senior Software Engineer Java Full Stack vs Software Developer Java?

AspectSenior Software Engineer Java Full StackSoftware Developer Java
Required CredentialsBachelor's or Master's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications optional
Work EnvironmentDesigning, developing, and maintaining full-stack applications, often in Agile teamsDeveloping Java-based applications, primarily backend or frontend, in various environments
Industry UsageCommon in tech companies, startups, and enterprise ITWidely used across industries for Java application development

While both roles involve Java development, Senior Software Engineer Java Full Stack typically encompasses a broader scope, including both frontend and backend responsibilities, along with leadership and design tasks. Software Developer Java may focus more narrowly on specific application components. The senior role often requires more experience and a deeper understanding of full-stack development.

What are popular job titles related to Senior Software Engineer Java Full Stack jobs in Seattle, WA?

For Senior Software Engineer Java Full Stack jobs in Seattle, WA, the most frequently searched job titles are:

What job categories do people searching Senior Software Engineer Java Full Stack jobs in Seattle, WA look for?

The top searched job categories for Senior Software Engineer Java Full Stack jobs in Seattle, WA are:

What cities near Seattle, WA are hiring for Senior Software Engineer Java Full Stack jobs?

Cities near Seattle, WA with the most Senior Software Engineer Java Full Stack job openings:

Senior Software Engineer Java Full Stack jobs near you
Infographic showing various Senior Software Engineer Java Full Stack job openings in Seattle, WA as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 86% Full Time, 8% Part Time, and 4% Contract. Highlights an 85% Physical, 3% Hybrid, and 12% Remote job distribution, with an average salary of $153,373 per year, or $73.7 per hour.

Full Stack Software Engineer - Remote

Seattle, WA • Remote

YO AI Labs
See more jobs at YO AI Labsexternal

$80 - $120/hr

Full-time

Posted 14 days ago

Job description

Senior Software Engineer

Job Type: Contractor (~15 hours/week)
Location: Remote

Job Summary

We are seeking experienced Senior Software Engineers to support an AI training project by creating reinforcement learning environments that evaluate AI models on complex software engineering tasks using Model Context Protocol (MCP) tools.

You will design reproducible environments, deterministic verification, and reference solutions for tasks such as bug fixing, feature implementation, codebase refactoring, and performance optimization. No prior AI experience is required.

Key Responsibilities
  • Create reinforcement learning environments for software engineering tasks.
  • Design tasks involving bug fixing, feature development, refactoring, and performance optimization.
  • Build deterministic verification systems and golden reference solutions.
  • Evaluate AI agents' ability to reason through complex codebases and use MCP tools effectively.
  • Develop realistic, reproducible software engineering scenarios.
  • Ensure tasks accurately measure coding ability, problem-solving, and tool usage.
  • Document solutions and provide clear technical feedback.
Required Skills
  • Strong proficiency in Python 3, Java, Rust, C++, or TypeScript.
  • Strong understanding of algorithms and data structures.
  • Experience with bug fixing and debugging complex software issues.
  • Proven experience in feature implementation and codebase refactoring.
  • Strong knowledge of performance optimization and tuning.
  • Excellent written and verbal communication.
  • Strong attention to detail.
Preferred Qualifications
  • Experience working with large-scale or distributed codebases.
  • Familiarity with AI/ML systems is a plus but not required.
  • Experience with rigorous code reviews and software engineering best practices.
  • Experience working effectively in remote or cross-functional teams.
Hiring Process
  1. Submit an application and screening questions.
  2. Complete an AI interview (~30 minutes).
  3. Complete a technical assessment, if required.
  4. Hiring Manager review.
Compensation

Compensation is output-based, with payment provided per task that meets project specifications. Minimum weekly submission requirements may apply.

Availability

Selected experts should be prepared to begin their first tasks within 24–48 hours of completing onboarding.