Principal Software Developer Jobs in Seattle, WA

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RPA Developer

ABAL Technologies Inc

•

Remote

Contract

GA DHS - Sr. RPA Developer Atlanta, GA-REMOTE Responsibilities: Design and implement scalable RPA solutions using UiPath for complex, enterprise-level applications.Lead end-to-end automation lifecycle: requirements gathering, solution design, development, testing, deployment, and maintenance.Provide architectural direction and technical leadership to the RPA development team.Guide the team in adopting best practices in RPA design, development, and deployment.Mentor and support junior RPA develop
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Posted 4 days ago

Lead AI ML Engineer - Remote

UnitedHealth Group

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Remote or San Francisco, California, USA

Full-time

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health op
Posted 60+ days ago | Updated 11 hours ago

Senior .NET Developer Mainframe Modernization

ChaTeck Incorporated

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Remote or Austin, Texas, USA

Third Party, Contract

Role: Senior .NET Developer Mainframe Modernization Location: Austin, TX - Remote Why Join Us? Be part of a high-impact modernization effort that drives the future of regulatory software in the Texas energy sector. Remote work flexibility Long-term contract with strong renewal potential Collaborative Agile team environment Chance to influence enterprise-level architecture and modernization strategy About the Role We're seeking a Senior .NET Developer with prior experience supporting the Railroa
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Posted 6 days ago | Updated 2 days ago

Lead Hardware Reliability Engineer (Starlink Aviation)

SpaceX

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Woodinville, Washington, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. LEAD HARDWARE RELIABILITY ENGINEER (STARLINK AVIATION)Starlink is the world's first and largest satellite constellation using a low Earth orbit to deliver broadband internet capable of supporting streaming, online gami
Posted 50 days ago | Updated 11 hours ago

Lead Mobile Software Engineer - Remote

UnitedHealth Group

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Remote or Eden Prairie, Minnesota, USA

Full-time

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health op
Posted 3 days ago | Updated 11 hours ago

Structural Engineer - Rail and Transit - Hybrid Remote

Parsons Services Company

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Remote or Washington, District of Columbia, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Parsons is now hiring an experienced Structural Engineer (Hybrid Remote with 3 days/
Posted 16 days ago | Updated 11 hours ago

Lead Detection Engineer(remote)

Humana Inc

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Remote

Full-time

Become a part of our caring community and help us put health first The Lead Detection Engineer position is responsible for building and curating custom cyber threat detection content for the Humana enterprise environment. This role works closely with EIP's Threat Management and Response teams as well as other IT and EIP teams. The Lead Detection Engineer role is responsible for technical execution and delivery of services provided by the Detection Engineering team. This team provides oversight o
Posted 6 days ago | Updated 11 hours ago

Structural Engineer - Rail and Transit - Hybrid Remote

Parsons Services Company

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Remote or New York, New York, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Parsons is now hiring an experienced Structural Engineer (Hybrid Remote with 3 days/
Posted 17 days ago | Updated 11 hours ago

Principal Infrastructure Engineer

Memorial Sloan Kettering Cancer Center

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Remote or New York, New York, USA

Full-time

Pay Range $164,100.00-$270,900.00 Company Overview The people of Memorial Sloan Kettering Cancer Center (MSK) are united by a singular mission: ending cancer for life. Our specialized care teams provide personalized, compassionate, expert care to patients of all ages. Informed by basic research done at our Sloan Kettering Institute, scientists across MSK collaborate to conduct innovative translational and clinical research that is driving a revolution in our understanding of cancer as a disea
Posted 60+ days ago | Updated 10 days ago

Staff Fullstack Software Engineer, Guest Displays & Platforms

Airbnb

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Remote

Full-time

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join Guest Displays & Platforms team The Guest Displays & Platforms team owns pricing and availability across al
Posted 60+ days ago | Updated 11 hours ago

Principal Kernel Engineer

Request Technology, LLC

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Remote

Full-time

Principal Kernel Engineer Salary: Open + Bonus + Stock Options Location: Remote *We are unable to provide sponsorship for this role* Qualifications Writes high-quality multithread-safe code in C++ in both kernel-mode and user-modeDevelops high-quality code in Rust or a strong desire and capacity to learn quickly (Rust)Has shipped at least one production quality driver for Windows NTStrong knowledge of Win32 APIs and NT kernel internalsDebugs memory corruption issues and improves end-to-end syste
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Posted 60+ days ago | Updated 4 days ago

Senior Staff IT Developer

Right Skale, Inc.

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Illinois, USA

Third Party

The Staff/Senior Staff IT Developer (Application Security) will design and secure internal applications, conduct security code reviews, perform penetration testing, and collaborate with cross-functional teams in an Agile environment. Key Responsibilities: Design secure, scalable IT solutions focused on performance. Conduct security code reviews for quality and best practices. Identify and remediate vulnerabilities (e.g., XSS, SQLi, CSRF, SSRF). Perform web app penetration testing (manual/automa
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Posted 39 days ago | Updated 2 days ago

Lead Java Developer with AWS

EPAM Systems

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Remote

Full-time

We are looking for a Lead Java Developer to join a highly collaborative agile team. You will experience great culture in a rapidly scaling company while using world-class technologies. While the role is primarily back-end focused, there are opportunities to work across the full stack from UI to end data points. If this sounds like your kind of thing, apply today! This position offers remote setup with the flexibility to work from any location in Georgia, whether it's your home, well-equipped o
Posted 60+ days ago | Updated 11 hours ago

Senior Lead Generative AI Engineer

Photon

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Remote

Full-time, Third Party

Senior Lead Generative AI Engineer Location - Remote , USA For the past 20 years, we have powered many Digital Experiences for the Fortune 500. Since 1999, we have grown from a few people to more than 4000 team members across the globe that are engaged in various Digital Modernization. For a brief 1 minute video about us, you can check . We are seeking a Senior Generative AI Engineer with a passion for building intelligent, agentic systems that transform how consumers interact with healthcare.
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Posted 11 days ago

Sr Lead Planning Engineer

Apex Systems

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Remote

Full-time

Job#: 2083400 Job Description: If interested in the opportunity below please email a copy of your resume to Job Title: Senior Lead Planner Location: Remote 12 Month Contract w/ Possible Extension Role Overview The Senior Lead Planner sets strategic direction for systems, networks, user services, and vendor development initiatives. This role defines organizational standards, ensures system interoperability, and validates features and functions through rigorous testing. It involves analyzing
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Posted 11 days ago | Updated 11 hours ago

QA Automation Engineer

Application Management Services LLC

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Remote or Mexico City, Mexico City, Mexico

Contract

Must be LATAM only. What You Will Do: Be the quality champion for your team, owning the end-to-end validation of features, including requirements definition and quality signoff.Collaborate with technology lead and engineers to understand requirements and align on test strategies.Leverage robust automation frameworks for testing APIs, mobile applications (iOS and Android), and web platforms to ensure reliable releases.Be the owner of your test suite. Actively monitor the results of your automatio
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Posted 3 hours ago | Updated 3 hours ago

Senior Bridge Engineer - Transportation Infrastructure

Parsons Services Company

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Remote

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: SENIOR / PRINCIPAL BRIDGE ENGINEER - TRANSPORTATION INFRASTRUCTURE - PACIFIC NORTHWE
Posted 24 days ago | Updated 11 hours ago

Staff Android Engineer, Accessibility & UI Systems

Block Inc

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Remote or New York, New York, USA

Full-time

Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square. After enabling anyone to take payments and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn't work together. So we expanded into software and started building integrated, omnichannel solutions - to help sellers sell online, manage inventory, offer buy now, pay later functionality, book appointments, engage loyal buyers, and hire and pay staff. Across
Posted 37 days ago | Updated 11 hours ago

Staff Android Engineer, Accessibility & UI Systems

Block Inc

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California, USA

Full-time

Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square. After enabling anyone to take payments and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn't work together. So we expanded into software and started building integrated, omnichannel solutions - to help sellers sell online, manage inventory, offer buy now, pay later functionality, book appointments, engage loyal buyers, and hire and pay staff. Across
Posted 37 days ago | Updated 11 hours ago

SR RPA Developer

Logisoft Technologies Inc

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Remote

Contract, Third Party

Role: Sr. RPA Developer Location: 47 Trinity Ave SW, Atlanta, GA 30334- Remote Duration: 9+ Months Experience: 15+ Years Note: Need Local to Atlanta candidate for in-person meetings. Required Skills: Bachelor s degree in computer science/engineering. Required IT experience with a strong background in software engineering. Required 15 Years Hands-on experience developing large enterprise-grade RPA solutions. Required 8 Years Experience as a lead RPA developer or technical lead on large-scale pr
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Posted 4 days ago