Back-End Developer Jobs in Seattle, WA

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.Net Backend Developer with Corillian

American IT Systems

Remote

Contract, Third Party

Title: .Net Backend Developer with Corillian Banking platform Remote Contract: 4 to 5 Months Must be willing to use your own laptop Must be willing to work in PST Hours 1st round of interview is a coding interview for 1 hour No. of years of experience as a .Net Backend Developer No. of years of experience in the Banking Industry -Mention the Name the company worked Must be Handson and willing to code Must have .Net framework Must have .Net Core Must have .Net MVC Must have SQL Server Must have

Lead Java Backend Developer

EPSoft Technologies LLC

Seattle, Washington, USA

Full-time

Role: Lead Java Backend Developer Location: Seattle, WA (Remote) Full Time Role Bachelor's Degree in Computer Science or a related field. 7+ years of software development experience, ideally on a modern tech stack. Strong backend development experience with Java or Scala (2+ years minimum; Kotlin preferred). Experience with relational databases and ORMs (PostgreSQL preferred). Expertise in microservices or service-oriented architecture (SOA). Hands-on experience in cloud-native environments, p

Senior Backend API Developer (AWS, .NET, Kubernetes)

Experis

Seattle, Washington, USA

Full-time

Job Title: Senior Application Developer Location: Seattle WA - Onsite 3 days a week Duration: 12 Months Pay Rate: $80.00/hr W2 Job Description: We are seeking a Senior Application Developer to design, develop, and maintain high-performing applications. The ideal candidate will have extensive experience in C#, ASP.NET, Web API, and .NET Core, along with hands-on expertise in cloud-based development, preferably Azure. This role requires strong problem-solving skills, the ability to work in a f

.Net Backend Developer - Temporal AI

Photon

Seattle, Washington, USA

Contract, Third Party

.Net Backend Developer with Temporal AI SDK Seattle, WA What will you do? What are we looking for? We are seeking a talented and versatile .NET Fullstack Developer with specialized experience in Temporal.ai to join our growing team . In this role, you will be responsible for developing and maintaining both backend and frontend components of our applications, with a strong emphasis on leveraging Temporal.ai for robust workflow orchestration. You will contribute to all phases of the software deve

Lead .Net Backend Developer

Photon

Seattle, Washington, USA

Third Party, Contract

Lead .Net Backend Developer (.Net/C# with Distributed Cloud Engg) Onsite at Seattle, WA/ Dallas, TX / Chicago, IL / NYC, NY The role: Scope of work: Hiring is for an Airlines ticket Booking team. We are going through a rebuild, fully rearchitecting our Booking engine. With Millions of Booking requests going through our systems, we need to build a robust, resilient, and easy to scale system, while meeting our needs for fast response time.Deep understanding of microservice architecture, and how to

Sr Back End Developer

Confidential Company

Remote

Contract

We are an award-winning team of very trusted and respected technologists looking for a senior back end developer to join our team for a 100% remote project. Must have deep expertise in back end development and API development, with solid understanding of Python and interested in working doing general app/web dev with Python. This is a contract role, paid hourly c2c, and can be 20 hours per week, 30 hours per week, or 40 hours per week. Sound like a fit? Let's talk!

.Net Backend Developer

Photon

Seattle, Washington, USA

Third Party, Contract

.Net Backend Engineer Onsite at Seattle, WA/ Dallas, TX/ Chicago, IL, NYC, NY About Us: We are seeking a Senior Back-End Software Engineer to play a pivotal role in this transformation. If you are a self-driven individual with strong ownership skills, a delivery and solution-oriented mindset, expertise in C#, .NET, Azure, CI/CD, and IaC, as well as in-depth knowledge of airline domain, we want you to be a part of our collaborative and forward-thinking team. Key Responsibilities: Back-End Develo

Backend Developer

MethodHub

Remote

Full-time

Role: Backend Developer Location- US Remote (Seattle) The Role We are seeking a Senior Software Engineer to play a pivotal role in our Money product architecture transformation. This includes evolving our banking core, implementing enhanced account structures, and preparing for new financial products like CDs. You will be responsible for maturing central member-facing services, focusing on entitlements, permissions, and data management to support integrated product offerings. You ll work in a hi

Backend Java Developer

BGI, LLC

Remote

Full-time

Position Summary BGI is seeking a skilled and motivated Backend Java Developer to join our growing engineering team. In this role, you will be responsible for designing, developing, testing, deploying, and maintaining the server-side logic and APIs that power an automated material tracking platform. You will leverage your expertise in Java and the Spring Framework to build high-quality, high-performance, and reliable backend services. You will collaborate closely with front-end developers, produ

Java Backend Developer

Randstad - Torc

Remote

Contract

We are looking for a Java Backend Developer to join our team! You will be responsible for designing, developing, and maintaining scalable and high-performance backend systems. If you are passionate about backend development, microservices, and cloud-based applications, this is the right opportunity for you! ResponsibilitiesDesign, develop, and maintain high-performance backend applications using Java.Implement RESTful APIs and integrate with external services.Work with microservices architecture

Java Backend Developer

Brillio, LLC

Remote

Full-time, Third Party

Role: Java Backend Developer Years of Experience: 8+ years Location: Remote Job Description: Skills: Java, Spring boot, REST API, Kafka, Microservices Contributing to all stages of software development lifecycle Coding, unit testing, implementation, deploying builds, troubleshooting Production and environmental issues, coordination with QA, App Support & Business Design, implement and maintain application Analyzing user requirements to define system business objectives Defining application obje

Backend developer

Prism IT Corp

Remote

Full-time

We seek a candidate who is forward-thinking, hands-on, and has a strong sense of ownership. If you thrive in a fast-paced environment, enjoy mentoring, and are passionate about building scalable and mission-critical financial systems, we d love to hear from you. What You ll Do Lead the development and testing of key systems and services.Design and shape the technical architecture of our evolving banking core.Translate product requirements into user stories and scalable technical solutions.Develo

Backend Developer - TypeScript/Node

Covenant Eyes

Remote

Full-time

We do not allow remote work in the following states - CA, CO, CT, LA, ME, MA, NJ, NY, OR, RI, VT, WA, WV, and Washington DC. Overview OverviewWorking at Covenant Eyes is about something bigger than creating and selling software; its about creating a movement and changing culture. At the end of the day you are contributing to saving a marriage, protecting a childs innocence, strengthening a commitment to purity, and working to end sexual exploitation. As a company focused on restoring relationshi

Sterling OMS Back-End Developer

Infinite Computer Solutions (ICS)

Remote

Third Party, Contract

About the Role We are looking for a skilled and motivated Back-End Developer with hands-on experience in IBM Sterling Order Management System (OMS) to join our growing technology team. As a Sterling OMS Developer, you will be responsible for building, customizing, and maintaining robust back-end solutions that support complex order management workflows across multiple channels. Key Responsibilities Design, develop, and maintain back-end components of Sterling OMS using Java and Sterling APIs.Con

Lambda server less backend developer (Node.JS)

BridgeNexus Technologies Inc

Remote

Contract

Job Title : Lambda serverless backend developer (Node.JS) Work Location: 100% Remote Work on Corp to Corp Note : No Java developer profile Required Skills Skills: Node.js,TypeScript, AWS components related experience, NoSQL, Server Less, REST, Event Driven, Git/GitHub, Sonar Cloud, postman, Lucid Charts, Jira/Confluence and under the legacy add the Django. Previous working experience as a NodeJS Developer for at least 5+ yearsStrong knowledge and practical experience with AWS and its developer

Backend Developer with Mobile Apps (W2-Contract)

Techouts, Inc

Remote

Contract

Backend Developer with Mobile Apps Duration: 9+ months Engagement type: REMOTE Consultant must work on our Company Payroll (W2-Contract) Senior Backend Software Developer / Mobile Apps. Will report to the Director of Infrastructure and work closely with Product Managers to deliver well-architected experiences to the customer base. Responsibilities: Improve the performance of the backend services that power our mobile application and make them more maintainable and scalable Design, build, and sca

Senior Java Backend Developer

SLK America Inc.

Remote or Jacksonville, Florida, USA

Full-time

Role: Senior Java Backend Developer Location: Jacksonville, FL Responsibilities: This Developer will be the go-to person for difficult development problems, Java/AWS design, code standards, code reviews, etc.Leverage industry best practices to design, test, implement and support a solution.Analyze highly complex business requirements; generate technical specifications to design or redesign complex software components and applications.Acts as an expert technical resource for modeling, simulation

Backend Developer: Data

USG Corporation

Remote or Chicago, Illinois, USA

Full-time

BACKEND DEVELOPER: DATA (PRODUCT INFORMATION) OUR DIGITAL CUSTOMER EXPERIENCE JOURNEY Capability transformation USG is evolving its digital customer experience and translating the objective of being easiest to do business with into a sustainable technology roadmap. The digital transformation includes upgrading our technology stack and augmenting our teams, developing new digital platforms, and integrating a best-in-class eCommerce operating model to deliver exceptional customer experience fro

Python Backend Developer- Remote- Contract role

Pegasus Knowledge Solutions

Remote

Contract, Third Party

Title : Python Software Engineer Location: Remote or IL. Duration : End of the year Required Skills: Python Kubernetes Google Cloud Platform or AWS or Azure Terraform / OpenTofu and Gitlab CI/CD Job details: Implement backend service features, primarily in Python on Kubernetes and Google Cloud platform, and using other technologies including Go, Scala, MongoDB, and Apache Kafka / Kafka Streams, as needed.Assist in deploying and administering cloud platform backend services using infrastructure-a

Senior AEM Backend Developer

Maximus, Inc.

Remote

Full-time

Description & Requirements Maximus is seeking an experienced Senior AEM Backend Developer with a strong background in AEM 6.5 and AEM as Cloud Service, Java/J2EE, and backend integration. The ideal candidate should have expertise in Sling Framework, OSGi, AEM Forms development, CRX, Content Management, and RESTful services. You will play a critical role in designing and developing backend solutions for our content management system while ensuring high performance, scalability, and security. Why