Mid-Level Software Developer Jobs in Seattle, WA

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1,581 - 1,600 of 1,894 Jobs

Roadway Engineer II

Parsons Services Company

•

Remote or Columbia, South Carolina, 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 BCC Engineering, a Parsons Company. 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: BCC Engineering, a Parsons Company, is looking forward to
Posted 1 day ago | Updated 7 hours ago

Senior Principal Engineer - Aerothermal Fluids (Hybrid)

RTX Corporation

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Remote or Windsor, Connecticut, USA

Full-time

Date Posted: 2025-06-19 Country: United States of America Location: 01: Building 01 Windsor Locks One Hamilton Road, Windsor Locks, CT, 06096 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted r
Posted 11 days ago | Updated 7 hours ago

Senior Drupal Full Stack Developer

Northwest Software

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Remote

Full-time

This is a long-term position and remote work Job Summary: - Lead Drupal development projects with a comprehensive understanding of both front-end and back-end development. - Lead senior-level projects and teams - Work directly with the Product Manager and UI/UX Designer to convert problems into technical solutions that are sustainable and scalable -Leverage AI to accelerate software development -Create and implement strategic plans, particularly in transforming websites into product-oriented pla
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Posted 5 days ago

Principal Backend Engineer, Materia AI

Thomson Reuters U.S. Inc.

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Remote or Eagan, Minnesota, USA

Full-time

Principal Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Lead Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role:
Posted 55 days ago | Updated 7 hours ago

Sr. C#/.NET Integration Engineer (Apache NiFi/FHIR API's)

ConsultNet, LLC

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Remote or Dallas, Texas, USA

Full-time

Sr. C#/.NET Integration Engineer (Apache NiFi/FHIR API's) Remote (MST, Central or Eastern Time Zone) 6-12-month Contract or Contract to Hire Pay Rate: 75-80/hr A rapidly growing technology-driven organization focused on streamlining how sensitive records are managed, processed, and shared. They specialize in transforming manual, compliance-heavy workflows into secure, efficient digital solutions-helping clients improve access, accuracy, and overall operational performance across regulated env
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Posted 12 days ago | Updated 6 hours ago

Sr. Adobe Experience Platform Engineer

Centene Corporation

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Texas, USA

Full-time

You could be the one who changes everything for our 28 million members by using technology to improve health outcomes around the world. As a diversified, national organization, Centene's technology professionals have access to competitive benefits including a fresh perspective on workplace flexibility. Position Purpose: Designs, develops, and implements complex enterprise software solutions in Adobe. Collaborates closely with technical and non-technical roles such as data modelers, architects,
Posted 60+ days ago | Updated 7 hours ago

Senior Marine Engineer (Propulsion) - HYBRID

American Systems Corporation

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Remote or Washington, District of Columbia, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities Provide technical support and documentation design, develop, and evaluate the operation of marine vessels, ship machinery, and related equipment, to include, but not limited to: power supply and propulsion syste
Posted 60+ days ago | Updated 7 hours ago

Sr. Full Stack Engineer, Node.js

iSpace, Inc

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Remote

Contract

Sr Full Stack Engineer Client Location: Los Angeles, California Duration: 12 Months Contract (No c2c, 1099 or 3rd party vendors) 100% remote Overview: Responsibilities: The client technology team is looking for a technical skilled, highly motivated, and self-driven Senior Full-stack Software Engineer to join a growing team. You'll be joining other driven technologists trying to solve some of the industry's most difficult issues. The team that you would be part of works closely with our product
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Posted 60+ days ago | Updated 1 day ago

Sr. Principal Backend Engineer - Data Team - Roon

Harman International

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California, USA

Full-time

A Career at HARMAN As a technology leader that is rapidly on the move, HARMAN is filled with people who are focused on making life better. Innovation, inclusivity and teamwork are a part of our DNA. When you add that to the challenges we take on and solve together, you'll discover that at HARMAN you can grow, make a difference and be proud of the work you do every day. About the Role At Harman International, we are leading the charge in revolutionizing music metadata management and discovery.
Posted 50 days ago | Updated 7 hours ago

Senior System Software Engineer, Cloud Learning Platform

NVIDIA Corporation

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Remote or Santa Clara, California, USA

Full-time

For over 25 years, NVIDIA has pioneered visual and accelerated computing. Today, we're defining the future of AI, equipping millions with groundbreaking tools and essential training to lead a new era of innovation. We empower developers to excel and do their life's work. We're seeking an innovative System Software Engineer, to design and build services that immerse learners in the practical application, deployment, and optimization of NVIDIA's innovative technologies. You will be instrumental in
Posted 15 days ago | Updated 7 hours ago

Senior iOS Engineer, Families - Cash App

Block Inc

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Remote or New York, New York, USA

Full-time

It all started with an idea at Block in 2013. Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic ecosystem, developing unique financial products, including Afterpay/Clearpay, to provide a better way to send, spend, invest, borrow and save to our 50+ million monthly active customers. We want to redefine the world's relationship with money to make it more relatable, instantly available, and universally accessibl
Posted 15 days ago | Updated 7 hours ago

Senior Android Engineer, Families - Cash App

Block Inc

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Remote or New York, New York, USA

Full-time

It all started with an idea at Block in 2013. Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic ecosystem, developing unique financial products, including Afterpay/Clearpay, to provide a better way to send, spend, invest, borrow and save to our 50+ million monthly active customers. We want to redefine the world's relationship with money to make it more relatable, instantly available, and universally accessibl
Posted 15 days ago | Updated 7 hours ago

Senior iOS Engineer, Families - Cash App

Block Inc

•

California, USA

Full-time

It all started with an idea at Block in 2013. Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic ecosystem, developing unique financial products, including Afterpay/Clearpay, to provide a better way to send, spend, invest, borrow and save to our 50+ million monthly active customers. We want to redefine the world's relationship with money to make it more relatable, instantly available, and universally accessibl
Posted 15 days ago | Updated 7 hours ago

Senior Android Engineer, Families - Cash App

Block Inc

•

California, USA

Full-time

It all started with an idea at Block in 2013. Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic ecosystem, developing unique financial products, including Afterpay/Clearpay, to provide a better way to send, spend, invest, borrow and save to our 50+ million monthly active customers. We want to redefine the world's relationship with money to make it more relatable, instantly available, and universally accessibl
Posted 15 days ago | Updated 7 hours ago

Sr. Application Development Engineer

Randstad Digital

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Remote or St. Louis, Missouri, USA

Contract

job summary: Story Behind the Need As a part of BTS realignment, the Medicaid and Medicare teams are being combined under one manager. Appropriate resourcing is required to support this effort. This role will require hands on training on the enrollment applications within the vendor suite. Application Development experience with applicable app stack (see top skills section), so that the candidate can properly carry out daily activities, project requirements and project delivery. Having a backg
Posted 2 days ago | Updated moments ago

Senior DevOps/Cloud Engineer

VDart, Inc.

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Remote

Third Party, Contract

Job Title: Senior DevOps/Cloud Engineer Location: Remote Duration/Term: Long Term Contract Inviting applications for the role of Lead Consultant - Senior DevOps/Cloud Engineer In this role, you would be responsible for! Work with engineering teams on design and implementation of large-scale distributed systems. Bring ideas to life to help make the lives of engineers better. Help our developers with some of their hardest problems. ECS orchestration for application and service deployment. Using An
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Posted 4 days ago

Senior Detection Engineer, Insider Threat

Coinbase

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Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the
Posted 60+ days ago | Updated 7 hours ago

Senior Commvault Certified Developer

Cloud and Things

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Remote or Albany, New York, USA

Full-time, Third Party, Contract

Our goal is to solve problems and deliver results for our clients. At Cloud and Things, you can be a part of transforming the public sector's IT environment. Our team is on the forefront of helping to solve the government's most complex IT challenges. If you are seeking a role that offers the opportunity to work on rewarding projects, consider a career with Cloud and Things. *This is an exempt position. Salary commensurate with experience* Overview: We are seeking a Commvault Certified Developer
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Posted 25 days ago | Updated 2 days ago

Senior Systems Software Security Engineer - Factory and Security Provisioning

NVIDIA Corporation

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Remote or Santa Clara, California, USA

Full-time

NVIDIA is seeking a highly motivated and experienced Senior Systems Software Security Engineer to join our Data Center Systems team. This role focuses on factory and security provisioning for devices used in NVIDIA data center systems. The ideal candidate will have a deep understanding of One-Time Programmable (OTP) memory, security controls, and end-to-end factory provisioning processes. What you'll be doing: Lead the factory provisioning process for NVIDIA data center systems, ensuring that d
Posted 60+ days ago | Updated 7 hours ago

Senior C# Full Stack Developer

Precision System Design Inc.

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Remote

Contract

Our Fortune 100 direct client is hiring for experienced Senior Full Stack Developers to work on large-scale IT projects. You would be designing and coding in a variety of technologies supporting and developing an Vue/Angular UI application, with C# back-end microservices. The ideal candidate will have strong C# development experience, has worked with front-end technologies such as angular, and back-end experience with SQL Server. This role can be done fully remotely following an EST work schedul
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Posted 10 days ago | Updated 19 hours ago