Jobs in the United States

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Added just now
Instrumentation & Controls Engineer 1 (Entry-Level) - Nuclear (Spring & Summer 2027)
Sargent & Lundy
Minneapolis, MN
Successful completion of the Fundamentals of Engineering (FE) exam, and designation as an Engineer in Training
Added just now
Data Engineer, Sr
Insight Global
Atlanta, GA
…drive business decisions across the company. As a Senior Data Engineer, you will be part of the Data Engineering & Operations team responsible for enhancing and maintaining scalable data…
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A
Senior Software Engineer, Backend (ML Training and Serving)
Affirm
Remote, United States
- $195,000 to $225,000 USD / year
…servicing, and personalization. We are seeking a Senior Software Engineer to join our ML Training & Serving engineering team, the team that builds and operates the critical infrastructure…
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Software Engineer, Full Stack (Provider)
Charlie Health
NY
Added just now
Electrical Engineer V
CRB
Omaha, NE
CRB is seeking an experienced Senior Lead Electrical Engineer with a strong background in building and industrial power systems to lead electrical design efforts on complex projects. In…
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Senior Scheduler I
Mortenson
Minneapolis, MN
Experience as a project engineer is desirable
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Quality Engineer
CFD Research Corporation
Hollywood, AL
CFD Research is hiring a quality engineer in support of Navy airborne power systems. These engineers will create and implement quality processes to meet contract requirements, develop…
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Staff Engineer - Platform Engineering
Early Warning Services, LLC
United States
A Staff Platform Engineer formulates the technical strategy that defines the roadmap for the team. This individual architects, designs, builds, implements, automates, and documents the…
Added 1 min ago
Sr. Engineer, Molding
United States
Must have experience developing, validating and standardizing molding processes, including the applications of scientific molding techniques
Added 3 mins ago
Data Engineer/Consultant
Noblis
Springfield, VA
Must have a Bachelor's degree with 1+ years of experience OR Master's degree with 1+ years of experience OR Ph.D
Added 3 mins ago
Lead - Day Shift
GXO Logistics
Hanahan, SC
Day Shift, Monday - Friday, 02:30AM - 01:00PM
Added 3 mins ago
Human Resources Manager - 1st Shift
GXO Logistics
West Memphis, AR
We engineer faster, smarter, leaner supply chains.
Added 3 mins ago
Facilities Mechanical Engineer (South Portland, ME)
Texas Instruments
South Portland, ME
Texas Instruments (TI) is looking for an experienced Mechanical Engineer to join our Facilities Central Engineering Team at our Maine manufacturing site (MFAB) in South Portland, ME. In…
Added 3 mins ago
Embedded Software Engineer (on site)
General Dynamics Mission Systems, Inc
Orlando, FL
As a software engineer for the Training Technologies group, you’ll be a member of a cross functional team responsible for designing, implementing and integrating hardware and embedded…
Added 4 mins ago
Mechanical Designer
Stellar
Jacksonville, FL · Stevens Point, WI · Boulder, CO
…role involves working under the guidance of a Professional Engineer to coordinate design intent with project stakeholders and communicate effectively across…
Added 4 mins ago
Software Engineer (G)
TDX
San Diego, CA
IAT Level II certification is required, minimum Security+ CE · Clearance: Must possess and maintain a Secret clearance; prefer a Top-Secret clearance
Added 5 mins ago
Environmental Scientist II or Environmental Engineer II
Freeport-McMoRan
Bayard, NM
Added 5 mins ago
Environmental Scientist or Environmental Engineer I
Freeport-McMoRan
Bayard, NM
Employees may be required to work a non-standard schedule, which may include shift work (other than day shift) at a 24/7, 365-day operation
Added 5 mins ago
Data Center Production Operations Engineer
Meta
Los Lunas, NM
Meta is seeking a Data Center Production Operations Engineer to support the reliability, efficiency, and scalability of our global data center infrastructure. In this role, you will be…
Added 5 mins ago
Project Engineer - Design Build (Water Infrastructure)
Jacobs
Farmington, NM
We're looking for a motivated Project Engineer with 2-5 years of experience to join our Design-Build team supporting the delivery of a landmark water treatment facility in Farmington, New…
Added 5 mins ago
Test Lead/Device Engineer (R&D Engineer 2/3)
Los Alamos National Laboratory
Los Alamos, NM
This position will be filled at either the R&D Engineer 2 or R&D Engineer 3 level depending on the skills and experience of the selected candidate. Additional job responsibilities (outlined…
Added 5 mins ago
Test Engineer (R&D Engineer 1/2)
Los Alamos National Laboratory
Los Alamos, NM
This position will be filled at either the R&D Engineer 1 or 2 level, depending on the skills of the selected candidate. Additional job responsibilities (outlined below) will be assigned if…
Added 5 mins ago
Civil/Structural System Engineer 2/3
Los Alamos National Laboratory
Los Alamos, NM
Are you a talented and driven engineer looking to develop, maintain, and apply a diverse set of engineering capabilities to provide innovative engineering solutions? Los Alamos National…
Added 5 mins ago
Electrical Design Engineer 1
Los Alamos National Laboratory
Los Alamos, NM
Are you a talented and driven engineer looking to develop, maintain, and apply a diverse set of engineering capabilities to provide innovative engineering solutions? Los Alamos National…
Added 5 mins ago
Accelerator Mechanical Diagnostics Systems Engineer (R&D Engineer 3)
Los Alamos National Laboratory
Los Alamos, NM
Seeking a strongly self-motivated Research and Development Engineer (R&D Engineer 3) to be a member of the AOT-MDE Engineering Team. This team is responsible for a wide variety of…

Seamless Migration

Web Developer (TS/SCI CI Poly)

Chantilly, United States

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Job details

Posting language: English
Posted: Nov 11, 2026

Original job description

Seamless Migration is seeking a career and customer-oriented Web Developer, to join our team in Chantilly, VA. Clearance

TS/SCI W/ CI Polygraph (existing clearance required to start)

Location

Chantilly, VA

Overview

Support and modernize a portfolio of 100+ web applications for a government customer.
The ideal candidate takes ownership of complex development efforts, evaluates technical options, and delivers reliable solutions using C#/.NET, HTML5, JavaScript, Bootstrap, CSS, SQL, and AWS.
Responsibilities span requirements analysis, design, development, testing, deployment, troubleshooting, integrations, and application modernization.
Collaborate with technical teams and customers while thoughtfully applying AI-assisted tools, such as Roo Code, to coding, testing, documentation, troubleshooting, and code review.
Design, develop, enhance, test, and maintain web-based applications, including custom, commercial off-the-shelf (COTS), and government off-the-shelf (GOTS) solutions.
Collaborate with analysts, UI/UX developers, subject-matter experts, and technical teams to translate requirements into effective solutions.
Estimate development efforts and evaluate technical feasibility, risks, dependencies, resource needs, and operational impacts.
Develop technical specifications, application designs, maintainable code, APIs, integrations, data-conversion routines, and SQL-based solutions.
Use AWS services and related cloud technologies to design, develop, deploy, monitor, troubleshoot, and support cloud-based applications.
Follow configuration management, change control, security, documentation, quality assurance, and release standards while recommending improvements.
Conduct unit and formal testing; diagnose complex defects using code, logs, data, and system dependencies; coordinate resolution before production release.
Identify and implement opportunities to improve application performance, usability, security, scalability, resiliency, and long-term maintainability.
Provide technical input on decisions affecting projects and teams.

Qualifications

Minimum of two (2) years of relevant web development or software development experience.
Experience developing, enhancing, testing, and supporting web applications using HTML, JavaScript, CSS, C#/.NET, and Bootstrap.
Experience using AWS services to develop, deploy, monitor, troubleshoot, and support cloud-based or cloud-native applications.
Strong knowledge of SQL, web development principles, software-development practices, coding standards, and application security.
Ability to analyze complex technical issues, evaluate impacts and dependencies, and develop effective solutions with minimal supervision.
Ability to estimate development efforts, manage competing priorities, and support complex projects in a dynamic team environment.
Self-motivated, with the ability to take ownership of tasks, exercise sound technical judgment, and contribute to project and team objectives.

Nice To Have

Bachelor’s degree in Computer Science, Information Systems, Software Engineering, or a related field, or equivalent work experience.
AWS certification, such as AWS Certified Developer – Associate or AWS Certified DevOps Engineer – Professional.
Experience developing software with Python.
Experience contributing to application architecture, system integration, modernization, or cloud-migration efforts.
Experience with containerized or serverless applications and AWS services such as Lambda, ECS, RDS, or CloudWatch.
Familiarity with Agile software-development methodologies and practices.
Experience using AI-assisted development tools for coding, testing, documentation, troubleshooting, or code review.
Experience supporting applications in Department of Defense (DoD) or Intelligence Community (IC) environments.
Experience developing responsive, accessible web applications and applying Section 508 requirements.
CompTIA Security+ certification.

Benefits

100% paid Medical, Dental & Vision for Our Employees
6% 401K match (Vested Immediately)
29 Days' PTO
Flexible Work Schedule
Tuition/Certification Reimbursement
Growth Opportunities w/in an Emerging Defense Company

*All your information will be kept confidential according to EEO guidelines

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Jobs in the United States