Senior Software Development Engineer Jobs in Mill Creek, WA

# Sr Software Development EngineerApply**Job#: 3045150****Job Description:**Sr Software Development Engineer**Location:** Seattle, WashingtonRole OverviewWe are seeking a Senior Software Development Engineer to serve as a technical leader on the Content Platform for Training Needs Analysis. This role is responsible for driving engineering excellence by establishing development standards, improving code quality, mentoring engineers, influencing architectural decisions, and leveraging AI to accelerate productivity. The position involves designing and implementing scalable services, introducing automated quality gates, defining reusable patterns and frameworks, and ensuring the platform is built on secure, maintainable, and reliable engineering practices.Key Responsibilities* Lead the design and implementation of Training Needs Analysis as the first digital product on the Content Platform.* Collaborate with the solution architect on architectural decisions for scalability and maintainability.* Serve as a technical mentor for engineers across the organization.* Define, document, and enforce engineering standards, coding practices, and design patterns.* Drive consistency through reusable frameworks, templates, and shared libraries.* Raise code quality through reviews, technical coaching, and automated quality gates in CI/CD.* Define and monitor quality metrics, including test coverage, technical debt, security, performance, and reliability.* Champion the adoption of AI-assisted development tools and establish best practices for their use.* Improve platform observability, deployment automation, and operational excellence.* Lead root cause analysis and implement corrective actions for production issues.* Partner with Product Managers and Architects to translate business needs into scalable technical solutions.* Foster a culture of continuous learning, innovation, and engineering excellence.Required Qualifications* Proven experience designing and building distributed, cloud-native applications.* Strong expertise in software architecture and object-oriented design.* Deep understanding of CI/CD pipelines and DevSecOps practices.* Experience implementing automated testing strategies.* Strong knowledge of software engineering best practices, design patterns, and coding standards.* Demonstrated success mentoring engineers and leading technical initiatives.* Experience with modern cloud platforms such as AWS, Azure, or GCP.* Proficiency in leading development of component-driven UI using React and leveraging libraries like Mantine or Chakra UI.* Experience in leading and developing in a modern backend runtime or language such as Node.js, Java, Go, or Python.* Experience using AI-assisted tools to rapidly prototype solutions.* Deep understanding of API design, implementation, and backend architecture.* Excellent communication and leadership skills.Work EnvironmentThis position is based in Seattle, WA, and requires the ability to be onsite five days per week. *Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.**Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy**Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.**Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.**If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at accommodations@apexsystems.com or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.**UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.***Employee Type:** Contract**Location:** Seattle, WA, US**Job Type:****Date Posted:** August 5, 2026**Pay Range:** $80 - $140 per hour #J-18808-Ljbffr