Back End Developer Jobs in Seattle, WA

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Sr Java Backend Engineer

Quadrant Technologies

•

Bellevue, Washington, USA

Contract, Third Party

Job Title: Senior Java Backend Engineer Location: Bellevue, WA About the Role We are seeking Senior Backend Engineers to design and develop a cloud-based supply chain data platform. This role requires expertise in backend development, cloud automation, and modern infrastructure technologies to build scalable, high-performance solutions. Key Responsibilities: Design, develop, and optimize backend services using Java, Spring boot.Implement and maintain cloud services automation on Azure, AWS, or G
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Posted 11 days ago

.Net Backend Architect / Only on W2

FutureTech Consultants LLC

•

Remote

Contract

Hi, Hope you are doing good, this is Rajeev from FutureTech Consultants, LLC and I have a job opening with our direct client. Please have a look at the below job description and let me know your interest. Please share me the latest copy of your resume. Role: .Net Backend Architect Location: Remote Duration: Long Term Contract Mode of Interview: Coding Test + 30 mins video call Must Have Skill: C++, C#, .Net Core Architecture, AWS Cloud, Trading Platforms, Futures Commodity Commissions Market (F
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Posted 11 days ago

Principal Engineer, Backend

Harman International

•

Texas, 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 Join our team as a Backend Engineer and help us build the backend systems for a revolutionary new music discov
Posted 46 days ago | Updated 5 hours ago

Backend Software Engineer (Starlink)

SpaceX

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Redmond, 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. BACKEND SOFTWARE ENGINEER (STARLINK) At SpaceX, we're leveraging our experience in building rockets and spacecraft to deploy Starlink, the world's most advanced broadband internet system. Starlink is the world's large
Posted 22 days ago | Updated 5 hours ago

Lead C++ Developer with .Net

Photon

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Remote

Third Party, Contract

Lead C++ Developer with C# and .Net Core Remote We are seeking a hands-on Lead Backend Engineer to help build a new Futures Commodity Commissions Market (FCM) platform a greenfield, regulated financial trading product focused on binary sports prediction markets. This is a rare opportunity to shape the architecture and implementation of a federally regulated financial system from the ground up. You'll be responsible for designing and developing core backend services for a compliant, low-latency t
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Posted 39 days ago | Updated 5 days ago

.Net Backend Lead

Photon

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Remote

Contract, Third Party

.Net Backend Lead Developer Remote We are seeking a hands-on Lead Backend Engineer to help build a new Futures Commodity Commissions Market (FCM) platform a greenfield, regulated financial trading product focused on binary sports prediction markets. This is a rare opportunity to shape the architecture and implementation of a federally regulated financial system from the ground up. You'll be responsible for designing and developing core backend services for a compliant, low-latency trading platfo
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Posted 53 days ago | Updated 5 days ago

Principal Platform Engineer, Materia AI

Thomson Reuters U.S. Inc.

•

Remote or Eagan, Minnesota, USA

Full-time

Principal Platform 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 Principal Platform Engineer, you will lead the design, development, and evolution of our next-generation cloud-native platforms. You will drive technical strategy, foster engineering excellence,
Posted 26 days ago | Updated 5 hours ago

Lead Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

•

Remote or Eagan, Minnesota, USA

Full-time

Lead 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: In t
Posted 60+ days ago | Updated 5 hours ago

Senior Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

•

Remote or Eagan, Minnesota, USA

Full-time

Senior 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 Senior 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 60+ days ago | Updated 5 hours ago

UI Developer (Angular)

CoreStack

•

Seattle, Washington, USA

Full-time, Third Party

Role Description We are looking for a passionate UI Developer to join our growing team at CoreStack. In this role, you will focus on developing and enhancing dynamic, responsive user interfaces that power our cloud governance platform. You ll collaborate closely with product managers, designers, and backend engineers to bring intuitive and high-performing UI solutions to life. Responsibilities Develop and maintain scalable UI components using modern front-end frameworks (Angular preferred)Transl
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Posted 14 days ago

Software Engineer - JAVA - (Remote)

ICF

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Remote or Reston, Virginia, USA

Full-time

The Company ICF is a mission-driven company filled with people who care deeply about improving the lives of others and making the world a better place. Our core values include Embracing Difference; we seek candidates who are passionate about building a culture that encourages, embraces, and hires dimensions of difference. The Team Our Health Engineering Solutions (HES) team works side by side with customers to articulate a vision for success, and then make it happen. We know success doesn't hap
Posted 26 days ago | Updated 5 hours ago

Backend Software Engineer, Search - USDS

TikTok

•

Seattle, Washington, USA

Full-time

Location : Seattle Employment Type : Regular Job Code : A11187 Apply to this job Share this listing: Responsibilities About the Team Our Search Team is responsible for building and owning TikTok's search engine, which provides our users the best search experience. On the TikTok Search Team, you'll have the opportunity to build a full-stack search engine system and combine information retrieval technology with modern machine learning methods from related fields such as NLP, CV, and recomme
Posted 20 days ago | Updated 5 hours ago

Senior JavaScript Developer

Randstad - Torc

•

Remote

Contract

We are looking for a Senior JavaScript Developer to join our dynamic team. As a key contributor, you will be responsible for designing, developing, and maintaining scalable and high-performance web applications. You will work with modern frameworks, APIs, and cloud-based services to deliver top-tier software solutions. ResponsibilitiesDesign, develop, and optimize web applications using JavaScript, TypeScript, and modern frameworks (React, Angular, Vue.js).Build and maintain scalable, reusable,
Posted 60+ days ago | Updated 13 days ago

Senior Cloud Developer (AWS)- Remote (Future Opportunity)

ICF

•

Remote or Reston, Virginia, USA

Full-time

*We are open to supporting 100% remote work anywhere within the US* * This role is part of our talent pipeline, and while there may not be an immediate opening, we are proactively connecting with qualified candidates for future opportunities* We're seeking a talented Cloud backend developer to join our dynamic team. As a key member of our engineering department, you'll play a pivotal role in designing, developing, and maintaining robust backend applications and services. Responsibilities: Des
Posted 60+ days ago | Updated 5 hours ago

Back-End Software Engineer IIs & Senior Software Engineers

Microsoft Corporation

•

Redmond, Washington, USA

Full-time

Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft's mission and bold ambitions to ensure that our company and industry i
Posted 4 days ago | Updated 5 hours ago

Backend Software Engineer - PCreator Monetization

TikTok

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Seattle, Washington, USA

Full-time

Location : Seattle Employment Type : Regular Job Code : A225784A Apply to this job Share this listing: Responsibilities The TikTok short video engineering team is responsible for building various kinds of new experiences for the TikTok app: content creation, social, open platform, user growth and PGC. This includes ensuring our systems are scaling to handle the ever-growing user base of TikTok and expanding our reach by making our tools accessible through our open platform. We are looking
Posted 60+ days ago | Updated 5 hours ago

Backend Software Engineer - TikTok Privacy Product

TikTok

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Seattle, Washington, USA

Full-time

Location : Seattle Employment Type : Regular Job Code : A132197A Apply to this job Share this listing: Responsibilities We built TikTok as a trusted platform to inspire creativity and enrich life. Our team protects users on our platform by promoting privacy by design; we design architectures that treats user data respectfully, with transparency, and in line with reasonable practices. Data privacy engineering is a new technological territory that hasn't been well defined in our industry; b
Posted 34 days ago | Updated 5 hours ago

Backend Software Engineer, Capacity & Optimization - USDS

TikTok

•

Seattle, Washington, USA

Full-time

Location : Seattle Employment Type : Regular Job Code : A115050A Apply to this job Share this listing: Responsibilities About the team: TikTok is seeking a software engineer to join the Capacity & Optimization Engineering team to focus on site-wide performance and capacity optimization at the intersection of all Tiktok products, services, and physical infrastructure (Servers, Data Centers, Network). This role will focus on optimizing Infrastructure performance and capacity at various alti
Posted 2 days ago | Updated 5 hours ago

Backend Software Engineer, AI Safety, TikTok - Seattle

TikTok

•

Seattle, Washington, USA

Full-time

Location : Seattle Employment Type : Regular Job Code : A145511A Apply to this job Share this listing: Responsibilities About Us: TikTok identifies Trust and Safety as a top priority, and our team obsesses over it daily. As generative AI and large models power more TikTok experiences, the AI Safety team ensures these systems are deployed responsibly, reliably, and in alignment with our community values. We are a newly founded team focused on building scalable safety systems to detect, pre
Posted 12 days ago | Updated 5 hours ago

.Net Back End - Azure

Kforce Technology Staffing

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Remote or Boca Raton, Florida, USA

Third Party, Contract

RESPONSIBILITIES: Kforce has a client seeking a Senior .NET Developer remotely. Key Responsibilities: * Lead the design, development, and deployment of robust backend services using .NET Core/.NET 6+ * Architect and implement distributed, event-driven systems using Dapr for service-to-service communication, pub/sub, and state management * Develop and manage message-based integrations using RabbitMQ, Kafka, or Azure Service Bus * Work extensively with MySQL including stored procedures, schema de
Posted 27 days ago | Updated 1 hour ago