Full Stack Developer
Merrifield, VA
Experience: 0
Category: Information Technology
Contractor Work Model: Hybrid
Brand: System One
Job ID: 378508
Date Posted: 08/13/2026
Shortcut: http://jobs.systemone.com/BHEbWm
Full Stack Developer
Location: Vienna VA - Hybrid - 1-2 days on site
Pay Rate: Open to Both C2C and W2 options
Position Type: Multiyear Contract
Basic Purpose
To support software development organizational initiatives by designing and implementing new or modifying existing systems/applications.
Responsibilities
1. Identifies, analyzes, designs, and maintains cost-effective information technology solutions that align with business initiatives and corporate strategies.
o Works with customers (business units) to identify business requirements (e.g., needs, objectives, functions, features, input, and output
o Analyzes, defines, and documents requirements for data, workflow, logical processes, hardware, and operating systems environment, interfaces with other systems, internal and external controls, and output.
o Documents, diagrams, organizes, information for inclusion in database, developing input/output record layouts, or program views.
2. Designs, develops, implements, and maintains systems with support from other ISD areas, team members, and management.
o Codes programs, prepares test data, tests, and debugs programs.
o Revises and refines programs to account for changes in functional system requirements and equipment configurations.
o Troubleshoots and resolves operational problems/system requirements Participates in testing and implementation of systems/applications.
3. Provides on-going maintenance of systems/applications.
o Maintains and monitors systems/applications after implementation.
o Develops and maintains documentation describing program development, logic, coding, testing, changes, and corrections.
o Provides technical support to customers.
o Participates in training of peers and SQA staff in new or modified systems/applications.
Additional Responsibilities
• Works independently with moderate guidance from higher level staff or management.
• Assists in determining system requirements.
• Applies specific functional knowledge to analyze and resolve moderately complex problems.
• Designs, codes, debugs, and maintains moderately complex computer programs.
• Works on most phases of applications programming activities
• Researches, identifies, and solves straightforward to moderately complex problems.
• Analyzes possible solutions using established procedures.
• Collaborate with software developers and SQA analysts.
• Investigate defects and bugs as they arise.
• Designs and develops test automation scripts using test automation frameworks.
Qualifications and Education Requirements Target
• Demonstrated experience in systems analysis & design, workflow, or procedural analysis.
• Demonstrated experience in application development, including determining, developing, testing, and implementing system requirements and specifications.
• Demonstrated ability to prioritize, plan, and organize tasks.
• Experience using established testing techniques.
• Demonstrated project leadership experience.
• Effective research, analytical, and problem-solving skills
• Effective interpersonal, verbal, and written communication skills
• Ability to work independently, exercise initiative, and use good judgment.
• Ability to work independently and as part of a team
Specific to this position
• A minimum of 5 -10 years distributed application programming experience in one or more of the following technologies: Java, J2EE, service-oriented architecture(SOA), middleware, integration technologies, and frameworks like JSP, JSTL, JMS, JNDI, JDBC, JAXB, Struts, Hibernate, Maven, log4j and JUnit.
• Solid understanding of Java Web Services WSDL, SOAP, XML, RESTful, Web Services Development Kit.
• Relational database, preferably DB2, SQL Server, or Oracle.
• Knowledge of Mainframe systems
• Experience with Data Migration and Mapping to Cloud solutions
• Experience with SFTP and Data File Transfers
• Experience with Automated testing frameworks
Desired
• College degree(s) in information technology, computer science or related field or equivalent experience
• Experience with DevOps and Continuous Integration / Continuous Delivery (CI/CD) practices
• Advanced knowledge of financial/banking industry standards, open banking standards, regulations, and practices specifically supporting real-time, near real-time, and batch payment rails
• Advanced knowledge of the organization's products, services, programs, policies, and procedures
• Advanced knowledge and experience working with or implementing Compliance applications.
• Experience in cloud development
• Knowledge of scrum or Scaled Agile Framework (SAFe)
• Familiarity with financial industry applications and systems.
• Expert experience/knowledge of software development best practices in accordance with the ITIL® or CMMI® capability models.
Plus, Skills
• IT Industry Certifications in good standing
• Knowledge of PowerBI
• Knowledge of the organization's operations, processes, and procedures
• Knowledge of Office of Foreign Assets Control (OFAC), Bank Secrecy Act (BSA) and Anti-Money Laundering (AML) systems
• Knowledge of Investments Portfolio
• Knowledge of IBM Integration Bus (IIB) or App Connect Enterprise (ACE)
• Knowledge of Microsoft Dynamics and/or Pega
• Knowledge of ServiceNow, and Azure DevOps (ADO)
Unusual Working Conditions
• May be required to work occasionally outside normal working hours.
• May be on call 24/7 to provide technical support.
#LI-KA1
#M1
Ref: #851-Rockville-S1
-
Senior/Lead Test Engineer
Merrifield, VA
Title: Senior/Lead Test Engineer Location: Remote Pay Rate: Open to Both W2 and established 1099's Position Type: Contract Candidates MUST LIVE in the United States and be able to pass both a credit and criminal background check. We are able to work wi...
Date Posted: 09/02/2026 Recommended
-
Lending Systems Software Tester
Merrifield, VA
Job Title: Lending Systems Software Tester Location: Hybrid onsite 3 days per/week - Vienna, VA Position Type: Multiyear Contract Pay Rate: Open to W2 ONLY (no c2c) Great opportunity with top-tier financial institution! We are currently seeking a Softw...
Date Posted: 08/14/2026 Recommended
-
Senior Application Developer (Python/Database)
Washington, District of Columbia
Senior Application Developer (Python/Database) Washington, DC - onsite Per Federal contract U.S. Citizenship Required Must be able to pass enhanced background screen (criminal, financial, drug) for Public Trust clearance W-2 or C2C Application Deadline...
Date Posted: 07/16/2026 Recommended
-
Pega Developer
Merrifield, VA
Job Title: Pega Developer Location: Vienna, VA Type: Contract Work Model: Hybrid – onsite and remote Responsibilities Identify business requirements (e.g., needs, objectives, functions, features, input and output) and translate into delivered technical...
Date Posted: 08/12/2026 Recommended
-
Data Engineer
Pittsburgh, PA
Position Title: Data Engineer Location: PA – Pittsburgh (Locals Preferred) Work Status : Onsite 5 days a week Duration : Contract to Hire Years Of Experience Required : 6+ Years Industry Background: Finance / Banking Function of the Group: Support Cost...
Date Posted: 07/21/2026 Recommended
-
Wind Turbine Technician - O&M
Houston, Texas
JOB TITLE: Wind Turbine Technician LOCATION: Various locations across the USA, 100% Travel. JOB TYPE: Contract, Project to Project. COMPENSATION: Pay based on experience. $140 Per Diem. PPE and free training. Truck (after MVR and if need it) with maint...
Date Posted: 07/14/2026 Recommended
-
Software Developer
McLean, VA
Software Developer Practice: Software Development & Support / Digital Company: Guidehouse Location: Remote Security and Work Authorization Requirements • Must be able to obtain and maintain a Federal or Department of Defense Public Trust. • Candidates ...
Date Posted: 08/25/2026 Recommended
-
Full Stack Developer
Vienna, VA
Job Title: Full Stack Developer Location: Hybrid Work Model Reporting to Vienna, VA or Pensacola, FL Pay Rate: Open to Both C2C and W2 options Position Type: Multiyear Contract Description Analyze business needs to develop and implement solutions that ...
Date Posted: 07/13/2026 Recommended
-
Manufacturing Facility Technician
Quincy, MA
Title: Manufacturing Facilities Technician Location: Quincy, MA area Hours / Schedule: Mon-Fri; 6am-2:30pm (with occasional OT available) Type: Direct Hire Responsibilities Working under the direction and supervision of others, perform routine inspecti...
Date Posted: 07/09/2026 Recommended
-
Legacy .NET Developer
Vienna, VA
Job Title: Full Stack Developer Location: Vienna, VA Type: Contract Compensation: Open to Both C2C and W2 options Work Model: Hybrid – onsite and remote Responsibilities • Identify business requirements (e.g., needs, objectives, functions, features, in...
Date Posted: 09/01/2026 Recommended
-
Senior Safety Methods Engineer
Bellevue, WA
Job Title: Senior Safety Methods Engineer Location: Bellevue, WA Type: Contract, 12 months Compensation: $37.00 - $74.00 Contractor Work Model: Onsite, remote available for exceptional non-local candidates. Overview: This role develops and qualifies sy...
Date Posted: 09/03/2026 Recommended
-
Senior Safety Analysis Engineer, Nuclear
Bellevue, WA
Job Title: Safety Analysis Engineer, Nuclear Location: Bellevue, WA Type: Contract, 12 months Contractor Work Model: Remote Overview This contract Safety Analysis Engineer role performs deterministic nuclear safety analysis and transient/accident model...
Date Posted: 09/03/2026 Recommended
-
Senior Engineer, Plant Thermal Hydraulics Validation
Bellevue, WA
Job Title: Senior Engineer, Plant Thermal Hydraulics Validation Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $56.00-$95.00 Contractor Work Model: Remote – offsite Paid Holidays | PTO Overview System...
Date Posted: 09/02/2026 Recommended
-
Nuclear Maintenance & Technical Training Developer / Instructor (Electrical)
Bellevue, WA
Job Title: Nuclear Maintenance & Technical Training Developer / Instructor (Electrical) Location: Bellevue, WA Type: Contract (yearlong) Compensation: $56.00 - $95.00 Work Model: Fully Remote – offsite Hours: 40.0 Overview System One is seeking a nucle...
Date Posted: 08/17/2026 Recommended
-
REL Documentation Specialist
Pensacola, FL
Job Title: REL Documentation Specialist Location: Hybrid reporting to Pensacola, FL Pay Rate: Open to Both C2C and W2 options Position Type: Multiyear Contract Description To support the organization by participating in the development and follow-up an...
Date Posted: 07/30/2026 Recommended
-
Lead Business Intelligence Analyst
Irvine, CA
Job Title: Lead Business Intelligence Analyst Location: Irvine, California Type: Contract Compensation: $84-89.23/hr Work Model: Hybrid- onsite and remote Hours: 40.0 Responsibilities Responsible for leading the design and support of commercial busines...
Date Posted: 08/31/2026 Recommended
-
Business Operations Analyst II
San Jose, CA
Business Operations Analyst II Location: San Jose, CA Compensation: $32 per hour Type: Contract to hire (2 year assignment) Job Description Summary Will provide dedicated systems analysis, testing, and supplier onboarding support for Phase 4 Spares wit...
Date Posted: 09/01/2026 Recommended
-
Nuclear Plant Integration Engineer (Test Abstracts and Specifications)
Bellevue, WA
Job Title: Nuclear Plant Integration Engineer (Test Abstracts and Specifications) Location: Bellevue, WA Type: Contract Compensation: $69.00 - $115.00 per hour Work Model: Remote – offsite Hours: 40.0 Overview System One is seeking an experienced Nucle...
Date Posted: 07/08/2026 Recommended
-
IVVO / FLISR engineer
Minneapolis, Minnesota
Job Title: IVVO (Integrated Volt-Var Optimization) / FLISR (Fault Location, Isolation, and Service Restoration) Engineer Location: Minneapolis, MN Type: 4 month Contract Compensation: $37.00 - $40.50 Work Model: Hybrid – onsite and remote Responsibilit...
Date Posted: 08/24/2026 Recommended
-
UI/UX Developer
McLean, VA
Job Title: UI/UX Developer Location: McLean, VA – can work Offsite Type: Contract To Hire Compensation: Not specified Work Model: REMOTE Critical Competencies A critical competency for this role is the ability to leverage agentic AI development tools (...
Date Posted: 09/02/2026 Recommended
-
Test Engineer
Lebanon, Ohio
Job Title: Test Engineer Location: Lebanon, Ohio Type: Direct Hire Compensation: $80,000.00 - $90,000.00 Work Model: Onsite Must already live within a commutable distance; no sponsorship or C2C Responsibilities Collaborates with Engineering, Product Ma...
Date Posted: 09/03/2026 Recommended
-
Control Systems Specialist
Everett, WA
Job Title: Control Systems Specialist Location: Everett, WA Type: Contract (yearlong) Compensation: up to $74.00 per hour Work Model: Onsite – onsite Hours: 40.0 Overview System One is hiring a Control Systems Specialist local to Everett, WA to support...
Date Posted: 08/17/2026 Recommended
-
Staff Product Designer, Mission Applications
Fort Belvoir, Virginia
Job Title: Staff Product Designer, Mission Applications Location: Fort Belvoir, VA Type: Contract To Hire Work Model: Onsite Security Clearance: Secret clearance Join a high-performing team supporting mission-critical digital transformation initiatives...
Date Posted: 09/04/2026 Recommended
-
Systems and Requirements Management Engineer
Bellevue, WA
Job Title: Systems & Requirements Management Engineer Location: Remote Pay $47-$85 an hour Position Type: Long term Contract Position Overview System One is seeking a highly motivated Systems & Requirements Management Engineer to support advanced nucle...
Date Posted: 06/25/2026 Recommended
-
Lead AWS Cloud Platform Engineer - IaC / SRE – Preferred CNAPP / Fortinet / AWS Clean Room
Reston, VA
Job Title: Lead AWS Cloud Platform Engineer (6 mos +) Location: Reston, VA Type: Contract Compensation: $109 Work Model: Hybrid – onsite and remote Responsibilities Define, design, and develop system requirements for cloud platform solutions on AWS. Pe...
Date Posted: 09/02/2026 Recommended
-
IT Tester
Merrifield, VA
Job Title: IT Tester Location: Vienna, VA Type: Contract Compensation: $50.00 - $64.00/hr W2 Work Model: Hybrid – 3 days onsite and 2 days remote Responsibilities • Create Test Plan documents utilizing company Test Standards and templates • Perform ana...
Date Posted: 09/02/2026 Recommended
-
System Design Engineer, Electromagnetic Pumps
Bellevue, WA
Job Title: System Design Engineer, Electromagnetic Pumps Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $69.00 - $115.00 Work Model: Remote – offsite Hours: 40.0 Paid Holidays | PTO Overview: System O...
Date Posted: 09/02/2026 Recommended
-
(ii) Technical Program Manager / Technical Delivery Manager – FACETS
Baltimore, Maryland
TECHNICAL PROGRAM MANAGER / TECHNICAL DELIVERY MANAGER – FACETS Location: Baltimore, MD or Washington, DC Type: Contract to hire Model: Hybrid - Both on-site and remote. Schedule: 40 hours/week (EST) JOB OVERVIEW We are seeking an experienced Technical...
Date Posted: 07/21/2026 Recommended
-
Mid - Senior Level Software Development Engineer in Test
Merrifield, VA
Job Title: Mid - Senior Level Software Development Engineer in Test Location: Vienna, VA Work Model: Hybrid – 3 days/week onsite, rest remote Type: Multiyear Contract Description: Top Skills: Full Stack SDET (Front-End and Back-End Automation Test Exp ...
Date Posted: 08/20/2026 Recommended
-
Rotating Machinery Subject Matter Expert
Bellevue, WA
Job Title: Rotating Machinery Subject Matter Expert Type: Long term Contract Work Model: Remote – offsite Pay rate range $62- $102 an hour Responsibilities Oversight of first of multiple large nuclear fluid pumps through design and manufacture. Provide...
Date Posted: 09/02/2026 Recommended