back end developer Jobs in seattle, wa

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Java Backend Engineer || Citizens only || W2

Paradigm Infotech

•

Remote

Contract

Role: Senior Java Backend Engineer Node JS Work mode: 100% remote Rate: $--/r on W2 no benefits. Visa: U.S. Citizenship + U.S.-based residency is required Not looking for Fullstack Engineers10+ years of exp6-12 months to hire Status: U.S. Citizenship + U.S.-based residency is requiredLocation: Remote - 9:00 - 5:00pm Central Time - the client is located in the southeastTechnologies: Node.js | TypeScript | Serverless Frameworks | AWS SAM | API documentation toolPractice Group: Consulting; Agile /
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Posted 4 days ago | Updated 4 days ago

Sr. Backend Engineer/Solutions Architect

LogiX-Guru

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Remote

Contract

Senior Backend Engineer / Solutions Architect (Node.js | Google Cloud Platform | TypeScript | Finance) Location: Remote Type: Full-time | Contract Client Industry: Financial Technology Key Responsibilities - Design and implement fraud prevention systems using Node.js and TypeScript - Develop and enhance device authentication mechanisms - Build payment intercept systems and fraud detection features - Integrate with Google Cloud Platform services (Spanner, BigQuery, Kubernetes) - Collaborate with
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Posted 18 days ago | Updated 5 days ago

Principal Engineer Cybersecurity, Cloud Security

URSI Technologies Inc.

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Remote

Contract

Job Title: Principal Engineer Cybersecurity, Cloud Security & High-Performance Systems Location: Remote (California) Duration: 12+ Months Role Overview: We are seeking a Principal Engineer with deep expertise in Cybersecurity, Secure Cloud Architectures, and High-Performance Systems. This role focuses on developing next-generation security platforms, real-time threat detection, and secure cloud services using Rust, Scala, and WebAssembly (WASM) on AWS. Key Responsibilities: Develop secure, perf
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Posted 18 days ago | Updated 4 days ago

Senior UI Developer

ST RXR Investments LLC

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Remote or Miami Beach, Florida, USA

Full-time, Third Party

Job Title:Senior UI Developer (3+ Years of Experience) Compensation: Up to 300k depending on experience. Location:Miami Beach, FL [Remote is Optional] Company:ST RXR Investments LLC Job Type:Full-time About Us:We are one of the two pioneers of high frequency automated trading, and a dynamic and innovative Hedge Fund focused on building a new cutting-edge high frequency, algorithmic trading platform. Our team is developing a trading interface integrated via API, designed to offer high-performance
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Posted 31 days ago | Updated 19 days ago

Team Lead, Java Developer

Govincorp

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Remote

Full-time

Seeking a highly skilled Team Lead, Java Developer to guide and mentor a team of developers in delivering high-quality backend services and APIs. The ideal candidate will possess strong technical expertise in Java, Go, PHP, Node.js, and MySQL, along with solid experience managing development teams and collaborating across functions to deliver scalable solutions. This position is 100% remote Responsibilities: Lead and manage a team of backend developers, providing technical direction and mentori
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Posted 20 days ago | Updated 6 days ago

Software Engineer, Backend

West Coast Consulting LLC

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Remote

Contract

Job Description Backend Engineer Remote Automation: designing and implementing systems to automate manual processes, with clear error handling, observability, and fallback mechanisms.Optimized Content Classification: integrating LLMs to parse through terabytes of content, classifying it, and refining over multiple rounds of processing.Systems Architecture: We need automation solutions that will stand the test of time within the broader Reddit ecosystem, and can be used for future classification
Posted 10 days ago | Updated 9 hours ago

Senior Backend Engineer (Node.js + TypeScript) - AI meets FinTech

HENRY

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Remote

Full-time

** Remote position ** Engineering scrums are at 9am EST Who We AreWe re a highly funded stealth startup that has built an institutional grade licensed exchange for trading illiquid real-world assets from commercial real estate to infrastructure, natural resources, and private credit. We re combining AI, deep regulatory infrastructure, and a modern tech stack to unlock trillions in global illiquid markets. What We re Looking ForWe re looking for a Senior Backend Engineer with strong experience bu
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Posted 18 days ago

SAP Fiori Consultant Position - REMOTE

Vailexa Technology LLC

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Remote

Contract

Role: SAP Fiori Consultant Location: REMOTE Job Type: Contract Job Overview: An experienced SAP Fiori Consultant (Min 6+ years) with strong understanding of SAP Fiori and SAP UI5 technologies, with hands-on experience in developing and deploying Fiori applications. Qualifications and Skills: SAP Fiori Consultant with a strong understanding of SAP Fiori/UI5, SAP Gateway, and OData services. Experience with SAP S/4HANA, SAP Fiori Launchpad, and custom Fiori application development. Knowledge of AB
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Posted 3 days ago

Senior Software Engineer, Backend - DevX CI

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 23 hours ago | Updated 12 hours ago

BE Crypto Software Engineer

Russell, Tobin & Associates

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Remote

Contract

Job Title: Crypto Software Engineer Location: Remote California Duration: 6 Months plus Pay Range: $58/hr-$65/hr on W2 JOB DESCRIPTION Join the User Economy team in this contractor role, working on an exciting initiative that enables users to earn money through various company products such as Awards, Premium, Collectible Avatars, and more. We're redefining how users engage with and monetize their contributions, shaping the future of the company's creator ecosystem. We are specifically hiring a
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Posted 9 days ago | Updated 6 hours ago

Staff iOS Engineer, Banking Mobile

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 21 days ago | Updated 12 hours ago

Java Swing Developer

Kforce Technology Staffing

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Remote or Salt Lake City, Utah, USA

Contract, Third Party

RESPONSIBILITIES: Kforce has a client in Salt Lake City,. UT that is seeking a Java Swing Developer. Summary: We are seeking a skilled Java Developer with strong experience in Java Swing, Oracle and JavaFX to support the development and enhancement of desktop-based software applications. This role will involve designing and implementing user interfaces, integrating back-end logic, and ensuring responsive, user-friendly application performance. Responsibilities: * Design, develop, and maintain
Posted 6 days ago | Updated 1 day ago

Senior Java Backend Engineer fully remote NODE.JS

Paradigm Infotech

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Remote

Contract

Must be located within USA No agency or C2C will NOT be considered and Visa sponsorship is not available nor provided JOB DESCRIPTION: System Design & Leadership Lead architectural discussions and make high-level design decisions that align with project and business goals. Conduct code reviews and enforce coding standards and best practices across the API team. Cross-functional Collaboration Partner with frontend, mobile, Salesforce, and DevOps engineers to deliver cohesive, end-to-end solut
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Posted 4 days ago | Updated 4 days ago

Lead Software Engineer - Backend (Hybrid/Onsite)

Visa Inc.

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Remote or 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 4 days ago | Updated 12 hours ago

Angular UI Architect

Bramkas Inc.

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Remote

Contract

Angular UI Architect Location: United States RemotePosition Type: Contract / Contract-to-Hire (CTH)Experience Level: 12+ yearsMust have Skill : Architect , Angular UI ExperienceJob Summary We are seeking a hands-on Angular Architect / Senior Lead with strong technical depth and client-facing experience. The ideal candidate will be skilled in building scalable, high-performance web applications using Angular (v10+) and related technologies. This role involves leading from the frontworking on cri
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Posted 54 days ago | Updated 20 hours ago

Software Engineer Manager, Money Movement

Block Inc

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California, USA

Full-time

Block is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams - People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more - provide support and guidance at the corporate level. They work across business groups and around the globe, spanning time zones and disciplines to develop inclusive People policies, forecast finances, give legal counsel, safeguard systems, nurture
Posted 30 days ago | Updated 12 hours ago

Associate Director Blockchain Engineering

HireTeq

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Remote

Full-time

Associate Director, Blockchain Engineering Location: Jersey City, NJ / Tampa, FL (Remote Work Available) This is a primarily remote role; however, candidates must be located near Jersey City, NJ or Tampa, FL and be willing to visit the client site as needed. Term: Permanent/FTE The ideal candidate will have a deep understanding of quantitative financial processes including derivatives, swaps, lending and repo markets, collateral management and liquidation, and other advanced trades. The candidat
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Posted 31 days ago | Updated 3 days ago

Full-Stack Software Engineer II(s) & Senior Software Engineer(s)

Microsoft Corporation

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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 7 days ago | Updated 12 hours ago

REMOTE:::.Net Backend Lead ( Trading Platforms) 10+ years - ONLY W2

FutureTech Consultants LLC

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Remote

Contract

Hello, Hope you are doing good, this is Hima from Appridat Solutions, 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 Lead Duration: Long term Remote role Mode of interview: Coding test + 30 mins video call Key Skills: C++, C#, .Net Core, AWS Cloud, Trading Platforms, Futures Commodity Commissions Market (FCM) platform, KYC, AML We are seeking a
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Posted 10 days ago

Software Engineer, Backend

West Coast Consulting LLC

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Remote

Contract

Job Description Software Engineer, Backend Remote What You'll Do: Must Have GoGraphQLMicroservices ArchitecturePythonREST API Development Nice To Have gRPC Remote Procedure CallsthrifWork cross-functionally with product, design, and other engineering counterparts to execute on product and business strategy and build novel products and features that our users will love.Contribute to the full development cycle: technical design, development, test, experimentation, analysis, and launch. You'll b
Posted 9 days ago | Updated 9 hours ago