Back End Developer Jobs in Seattle, WA

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Backend Software Engineer, ML

Bayside Solutions

•

Remote

Contract

Backend Software Engineer, ML W2 Contract Salary Range: $135,200 - $156,000 per year Location: Remote Role - PST Job Summary: As a Backend Software Engineer, you will work with the engineering team, EPM, and customers to support customer migration to next-generation services that generate, manage, and consume datasets, features, and embeddings used for ML training. You will utilize tooling to migrate data and work with customers to change their Python clients to start using the new SDK. Thi
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Posted 29 days ago | Updated 1 hour ago

Staff Software Engineer (Frontend, React)

Visa Inc.

•

Bellevue, Washington, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe
Posted moments ago

Senior Backend Engineer - Global E-commerce

TikTok

•

Seattle, Washington, USA

Full-time

Location : Seattle Employment Type : Regular Job Code : A154544 Apply to this job Share this listing: Responsibilities TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. TikTok has global offices including Los Angeles, New York, London, Paris, Berlin, Dubai, Singapore, Jakarta, Seoul and Tokyo. Why Join Us Creation is the core of TikTok's purpose. Our platform is built to help imaginations thrive. This is doubly true of the t
Posted 6 days ago | Updated moments ago

Need Senior UI Developer (10+ Years Experience) - Remote

URSI Technologies Inc.

•

Remote

Third Party, Contract

Position Senior UI Developer (10+ Years Experience) - RemoteLocation RemoteDuration 1+ Year (Extendable) Job Description: We are seeking a highly experienced and creative Senior UI Developer with 10+ years of hands-on experience in designing and developing modern, responsive, and dynamic web applications. The ideal candidate will possess a strong portfolio of complex UI implementations, a deep understanding of front-end architecture, and a passion for delivering seamless user experiences.Key Re
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Posted 2 days ago | Updated 4 hours ago

Full Stack Python/Django/React Developer - W2 (NO C2C) - Remote (EST hours) - Posted by Tauqeer

Global Force USA

•

Remote

Contract

Skillset: Back-end Services in PythonHeavy Django experience REQUIREDOur bottleneck is in Python/Django - we're really looking for back-end engineers who can flex to front-endWe are looking for experienced Python/Django candidates who can flex to build out on React, but demonstrable back-end experience is importantReact for UIsComfortable with AWS (SNS, SQS, EKS)Understands how to build systems which operate at scaleComfortable deploying to production; interacting with build pipelines (e.g. Code
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Posted 3 hours ago

Backend Software Engineer

Pinterest, Inc.

•

Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility
Posted 3 days ago | Updated moments ago

Senior Backend Software Engineer

Pinterest, Inc.

•

Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility
Posted 3 days ago | Updated moments ago

Senior iOS Software Engineer, Global E-commerce Customer Business

TikTok

•

Seattle, Washington, USA

Full-time

Location : Seattle Employment Type : Regular Job Code : A119150 Apply to this job Share this listing: Responsibilities TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and its offices include New York, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo. Why Join Us Creation is the core of TikTok's purpose. Our platform is built to help im
Posted 6 days ago | Updated moments ago

Sr. ETL Backend Automation Tester - ONLY W2

nTech Solutions

•

Remote or Herndon, Virginia, USA

Contract

ONLY W2ONLY W2ONLY W2 Candidates based in a commutable distance to Reston, VA will be prioritized. Title: Sr. Backend Test Engineer Location: Reston, VA 20191 Duration: 9 Months Contract + Extension Job Description: Terms of Employment Contract, 9 MonthsThis position is remote. Candidates must be based in Eastern or Central time zones. Candidates based in a commutable distance to Reston, VA will be prioritized.Candidates must be comfortable traveling to Reston, VA roughly once per quarter for PI
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Posted 8 days ago | Updated 2 days ago

Backend Python Engineer (REMOTE)(No C2C/H1B)

NetSource, Inc.

•

Remote

Contract

No C2C/H1B Remote, preference in the LA area to come into the occasional in person meetings. Please note that this is a 4-month contract position. Tech Stack / Tools: Python (NumPy, Pandas, SciPy) SQL (PostgreSQL or MySQL preferred) Github Jupyter notebook Experience with production systems and deployment environments Requirements: 3+ years of experience in backend development using Python in a production environment. Must know be proficient in NumPy, Pandas, SciPy, and Object-Oriented Progra
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Posted 17 days ago | Updated 5 hours ago

Backend Architect

Hirextra

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Remote

Contract

Job Description We are seeking a seasoned Backend Architect with deep expertise in regulated financial systems and trading platforms to lead the backend architecture and development for a new Futures Commodity Commissions Market (FCM) application. This platform, envisioned as a regulated sports prediction market and Robinhood s Prediction Market, will be built for a large-scale financial trading domain. The ideal candidate should have hands-on experience designing and scaling backend systems fo
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Posted 1 day ago

Core Java and SQL / Remote / Construction Planning Software

Motion Recruitment Partners, LLC

•

Remote or Boston, Massachusetts, USA

Full-time

Join a small, agile team building a highly scalable, cloud-based backend powering complex data-driven web applications. This is a great opportunity for a backend engineer with strong Java and SQL expertise who thrives in a startup-like environment and enjoys tackling performance-heavy challenges. This is an opportunity to work side-by-side with the Chief Software Architect on a lean team driving architecture and core functionality. You'll be writing highly concurrent Java code and building syste
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Posted 9 days ago | Updated 9 hours ago

Senior Artificial Intelligence Test Engineer

iSpace, Inc

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Remote

Contract

Senior Artificial Intelligence Test Engineer Location: Hybrid of 3 days/month onsite during the 2 nd full week of each month in either Denver, CO/Brentwood, TN/Malvern, PA or 100% remote with travel 2-3 times/year (if remote) Duration - 3 6-month Contract to Hire Opportunity Working Hours Mon-Fri, from 8AM 5PM EST This is an exciting opportunity to join a new team that will be supporting the testing efforts for AI products within an industry leading healthcare organization. This team will be s
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Posted 45 days ago | Updated 1 hour ago

Java Backend Engineer Lead/Architect - W2 ONLY - ONSITE.

Indus River Technologies Inc.

•

Bellevue, Washington, USA

Contract

*NOTE: W2 ONLY - ONSITE in Bellevue, WA from day one. *NOTE: W2 ONLY - ONSITE in Bellevue, WA from day one. *NOTE: W2 ONLY - ONSITE in Bellevue, WA from day one. Job Role: Sr. Java Backend Engineer Lead/Architect Location: Bellevue, WA(Onsite) Job Description: We're seeking a seasoned Sr. Backend Engineer/Architect to lead the design and development of a cloud-native supply chain data platform. This role demands strong backend engineering skills, cloud expertise, and architectural leadership to
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Posted 7 days ago | Updated 8 hours ago

Lead Software Engineer (Backend) - Materia AI

Thomson Reuters U.S. Inc.

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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 moments ago

Principal Backend Engineer

Jobot

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Seattle, Washington, USA

Full-time

This Jobot Job is hosted by: Christina Finster Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $185,000 - $260,000 per year A bit about us: Our client was founded with the intention of delivering on the promise of what Internet-of-Things (IoT) was supposed to be. They're building a global Bluetooth network dedicated to machine-to-machine connectivity. Our client is an early-stage, venture-backed startup supported by some of the best investor
Posted 2 days ago | Updated 4 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 moments ago

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

ICF

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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 53 days ago | Updated moments ago

Senior JavaScript Developer

Randstad - Torc

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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 51 days ago | Updated 6 hours ago

.Net Lead Engineer

Learn Beyond Consulting LLC

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Remote

Full-time

Role: .Net Lead Engineer Remote Visa: About the Role: 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-l
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Posted 1 hour ago