Mid-Level Software Developer Jobs in Seattle, WA

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Senior QA Engineer/ Remote , ( Denver, CO ),4+ Months Contract

Suncap Technology

Remote or Denver, Colorado, USA

Contract

Senior QA Engineer Denver, CO (Remote) 4+ Months Contract Project Background and Objective This position requires a highly skilled Senior QA Engineer to establish and drive comprehensive automated testing strategies and practices as a part of the Department of Personnel and Administration's (DPA) critical software modernization project.. The primary objective is to ensure the quality, functionality, performance, accessibility, and security of the modernized web application through robust auto

Sr. Application Developer

HF Management Services LLC

Remote

Full-time

The Sr Application Developer primary responsibilities are to guide and develop the design, implementation, testing and delivery of work within the team that cultivates communication and foster best application development practices against customized software. The Development Manager will have a strong knowledge of software development and design and will have experience working to develop business-critical applications. Duties & Responsibilities: Stays current in new IT technologies to maintai

AS400 Developer with Synon

Innovative IT Solutions Inc

Remote

Contract, Third Party

Job Title: AS400 Developer with SynonLocation: RemoteDuration: 6+ MonthsEmployment Type: Contract Job Description:We are seeking an experienced AS400 Developer with strong expertise in Synon (Cool:2E). The ideal candidate will have hands-on experience in developing, maintaining, and supporting applications on the IBM iSeries (AS400) platform. Key Responsibilities: Develop and support applications using AS400 and Synon (Cool:2E) Perform coding, testing, and debugging of existing applications Work

Senior Oracle PL/SQL Developers

Alpha Silicon

US

Third Party

8 10+ years Expert Oracle SQL developer. Should be able to Analyze, Debug and Write Large and Complex PL/SQL programs. Expert of using Oracle Data Integrator for performing ETL operations on Oracle database experience in writing Oracle SQLs and SQL Procedures experience with database driven multi-tier software development. experience with writing complex queries for Oracle database Preferable experience in financial transaction processing Experience in high-volume, transaction processing product

Junior Software Engineer (Software Engineer II)

Changeis Inc

Remote

Full-time

Junior Software Engineer (Software Engineer II)Salary: $70-80k DOE3-5 years of experience requirement Changeis, Inc. is seeking a highly skilled and motivated Senior Software Engineer to support our current work with the Supply Chain Systems Team. We are seeking a skilled and adaptable Junior Software Engineer to join our dynamic technology team. The successful candidate will be instrumental in designing, developing, and maintaining software solutions that extend and integrate with our core IFS

Sr. Salesforce Developer (Only Ex Capital one) Remote

V-Soft Consulting Group, Inc

Remote

Contract

Sr. Salesforce Developer (Only Ex Capital one) Remote Primary Location: Remote V-Soft Consulting is currently hiring for a Sr. Salesforce Developer (Only Ex Capital one) Remote for our premier client. WHAT YOULL NEED: Technical Requirements and Certifications Salesforce Certified Developer or Salesforce Certified Administrator certification. Education and Experience Bachelors Degree. At least 2 years of experience in Salesforce development. Preferred: 2+ years of experience with Salesforce E

Senior Application Security Engineer

EPAM Systems

Remote

Full-time

Are you passionate about strengthening application security and driving technological advancements within the realm of DevSecOps? Do you excel in collaborative environments where your contributions tangibly improve security processes and tools? We are seeking a driven and experienced professional to join our team as a Senior Application Security Engineer. As part of this role, you will take on a critical function in enhancing our overall security framework by identifying threats, deploying miti

Sr. Kafka Developer with Architechect Exp

AQUA Information Systems, Inc.

Remote

Contract

Role: Sr. Kafka Developer with Architect Exp Location: Remote (But candidate must work in PST (Pacific Standard Time) hours.) Responsibilities: Lead the design and development of high-quality software solutions using Kafka. Oversee the integration of Kafka with other systems and applications. Provide technical guidance and mentorship to junior developers. Collaborate with cross-functional teams to gather and analyze requirements. Ensure the scalability and reliability of Kafka-based systems. Con

Senior Full Stack Developer

Ahimay Technology Solutions

Remote

Contract

What You Will Do: The Cloud Applications Full-Stack AWS Developer will work closely with clients, digital leaders, solutions architects, and technical/ functional leads across Guidehouse digital teams and market segments to support client projects and provide solutions for growth efforts and capabilities build-out.Serve as a key member of the cloud team to support technical challenges/demos, building innovative solution prototypes using cloud architectures and software technologies.Solutions arc

Lead React Developer

Primetime Technologies Inc

Remote

Contract

REQUIRED 7+ years previous experience working as a React.js developer. 7+ years experience in React.js, HTML, CSS3. Vast experience in JavaScript and React concepts, advanced front-end coding skills, and an expert level understanding of progressive web applications. Extensive experience on front-end development and demonstrated ability to work in a fast-paced environment. Passion for supporting, collaborating, and coaching engineering teams. Comfortable driving code reviews and operating as anoi

Senior iOS Developer (We need Exp on Kotlin & Jetpack Compose align with CICD exp)

Key Infotek LLC

Remote

Contract, Third Party

Senior iOS Developer (We need Exp on Kotlin & Jetpack Compose align with CICD exp) Remote REQUIRED QUALIFICATIONS 7+ years in designing/developing iOS mobile applications5+ years of experience with modern iOS development frameworks such as Swift and SwiftUI5+ years of experience working with cross-functional teams such as design, product, data teams to deliver great user experiences5+ years of experience in influencing large organizations on best practices in mobile iOS development5+ years of ac

WatsonX Engineer

Oraapps Inc

Remote

Contract

Job Title - Senior WatsonX Engineer Location: Remote (Must be based in US) Duration: 4 weeks Description: Serve as the primary technical contact between development teams and the AI implementation team.Facilitate knowledge transfer sessions and gather detailed technical requirements.Design and implement secure connectivity between mainframe systems and the IBM watsonx platform.Configure data extraction processes from legacy code repositories without impacting production systems.Collaborate with

Java, Python,SQL,Datawarehousing, Healthcare Experience Developer

Xylo Technologies, Inc.

Remote

Contract

Please note that the consultant need to be on our W2 Title: Senior Analyst/Programmer Duration: 1 Year Client: Mayo Clinic Req ID: 36265123 RemoteScope: The IT Image Management Systems unit is seeking a talented and motivated individual to join the team supporting the InfinityView application. The InfinityView application is the general medical image viewer for patient care at Mayo Clinic. Primary responsibilities will include support, maintenance, and limited development. Requirements: -A br

NOW HIRING: Senior GIS Developer / Architect (100% Remote) Location: Richmond, VA 100% Remote

Global IT Family

Remote

Contract

NOW HIRING: Senior GIS Developer / Architect (100% Remote) Location: Richmond, VA 100% Remote Rate: $68/hr on C2C Apply Now: About the Role: The Virginia Department of Elections (ELECT) is seeking a Senior GIS Architect to lead the full implementation of ArcGIS Enterprise (11.3+) in a multi-environment (Staging & Production) setup with high availability. Must-Have Skills: 10+ years in GIS architecture, preferably in Microsoft/Azure environments Proven expertise deploying ArcGIS Enterprise wi

Full Stack Java Developer

Yom Solutions LLC

Remote

Contract

Job Title: Full Stack Java Developer Location: Remote Duration: 12 Months Job Description: We are looking for an experienced Full Stack Developer with strong expertise in React.js, Micro Frontend architecture, and modern cloud-native technologies, especially within the AWS ecosystem. This role requires a hands-on engineer who can design, build, and maintain scalable, resilient, and modular web applications using a mix of frontend and backend technologies including Node.js or TypeScript, Python o

Job Title: Sr Lead Planning Engineer

VSB Tech Consulting Services

Remote

Contract

Job Title: Sr Lead Planning Engineer Role Summary:Leads the planning, design, and optimization of large-scale IP networks across public and private infrastructures. Provides advanced expertise in routing, switching, and network security, ensuring high availability, security, and operational resilience. Key Responsibilities: Design and plan IP routing architectures for public and private networks. Configure and optimize routing protocols including OSPF, IS-IS, BGP, EIGRP, MPLS, and static routin

Ruby on Rails Developer

TekVivid

Remote

Contract, Third Party

Overview: We are looking for a highly motivated and experienced Ruby on Rails Developer to join our development team. You will be responsible for building and maintaining robust, scalable web applications. The ideal candidate has strong backend development skills and a passion for clean, maintainable code. Responsibilities: Design, build, and maintain efficient, reusable, and reliable Ruby code using the Ruby on Rails framework.Develop new features and improve existing ones.Collaborate with prod

GIS Developer

Global IT Family

Remote

Contract

Role: Sr GIS Developer Location: REMOTE Duration: 12+ Months Description: Bachelor s degree in Geography, GIS, Computer Science, Engineering, or a related field. 8+ years of experience in GIS architecture and deployment, preferably in Microsoft / Azure environments. Proven experience designing and deploying ArcGIS Enterprise in multi-environment configurations. Proficiency in DNS, port assignment, and firewall policy management related to ArcGIS Server and ArcGIS Enterprise. Proficiency using Py

Senior Databricks Engineer-W2 only

Gemini Consulting Services

Remote

Contract

Hello ,Hope you are doing well. Let me know if you are open to new job opportunities. URGENT REQUIREMENT Looking for candidates regarding the following: POSITION Senior Databricks Engineer LOCATION Remote, Quarterly travel to NYC/Boston office DURATION 12+ month, strong potential to renew annually INTERVIEW TYPE Video REQUIRED SKILLS 5+ years of experience in data engineering, cloud platforms, or big data environments.3+ years of hands-on experience with Databricks platform setup and administra

.Net Developer ( Senior Developer) / Durham, NC(Remote)- 6 Months Contract

Suncap Technology

Remote or Durham, North Carolina, USA

Contract

Need Sr .NET Developer Durham, NC (REMOTE) 6 Months Contract Interview Process: 1 st round : .NET ( 30 Min) & Oracle Pl/SQL (30 Min) test with Vendor 2 nd round : 30 min video Technical round with vendor team for Java NEED 15 + yrs Total IT experience with .Net and Oracle Need mandatory : .NET : yrs exp Oracle PL/SQL : yrs exp ASP.NET Webforms, .NET C#, Java Script/jQuery - To work on huge enterprise ASP.NET websites & many .NET backend systems - Very strong ASP.NET UI development experienc