ruby on rails Jobs in district of columbia, dc

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Senior Full Stack / UI Developer - 25k Sign on Bonus

Leidos

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Columbia, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Software Engineer to play a dual role in User Interface Development and Full Stack Development within our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). This position offers a chance to contribute to cutting-edge solutions in a mission-critical environment, leveraging innovative technologies to drive impactful results. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO),
Posted 5 days ago | Updated 10 hours ago

Cloud Computing Engineer

SAIC

•

Chantilly, Virginia, USA

Full-time

Job ID: 2505712 Location: CHANTILLY, VA, US Date Posted: 2025-05-15 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC has an opportunity for a Cloud Engineer to work on an exciting, fast-paced program. This position provides Cloud Computing expertise to customer's R&D gro
Posted 60+ days ago | Updated 8 hours ago

Software Engineer - Hybrid

Jacobs

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Remote or Maryland, USA

Full-time

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Software Engineer to join our team of passionate individuals in Hanover, MD. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence mission. Your Impact: We train like we fight! If you want to be part of a dynamic Team developing engaging and hands-on training solutions, this is th
Posted 49 days ago | Updated 10 hours ago

Cloud Engineer, TS/SCI with Polygraph

General Dynamics

•

Herndon, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Development Job Qualifications: Skills: Amazon Web Services (AWS), AWS Cloud Computing, DevOps Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: This is a unique opportunity for an experienced software developer to design
Posted 60+ days ago | Updated 10 hours ago

Full Stack Developer

Nightwing

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Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th
Posted 60+ days ago | Updated 10 hours ago

Python Developer

Apex Systems

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Herndon, Virginia, USA

Full-time

Job#: 2067797 Job Description: Apex Systems, a World-Class Technology Solutions Provider, is seeking applicants for the below position on behalf of our client. Please apply if interested and qualified by sending an updated resume to Derek at . **Please note that only qualified candidates will be contacted Position: Lead Software Developer Clearance Requirement: TS/SCI CI Poly Location: Herndon, VA Estimated Duration: Permanent/Direct Hire Salary Range: $145-165,000 The Role The Lead Sof
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Posted 60+ days ago | Updated 11 hours ago

Software Engineer III - Front-End

Comoto Family Of Brands

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Remote or Philadelphia, Pennsylvania, USA

Full-time

Company Description Comoto Holdings is America's largest and fastest growing omnichannel platform in the powersports aftermarket-products industry; dedicated to advancing the experience of moto enthusiasts across the globe. Comoto's brands, RevZilla, Cycle Gear, J&P Cycles, REVER, and Common Tread, deliver premium products, dedicated expertise, engaging media, and passionate customer support of the rider community, through best-in-class e-commerce and retail experiences. Important Application
Posted 15 days ago | Updated 14 days ago

Senior Full Stack Engineer

Vaco by Highspring

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Remote

Contract

THIS ROLE IS NOT AVAILABLE FOR C2C, VISA SPONSORSHIP, or THIR PARTY VENDORS We are seeking a highly skilled Senior Full Stack Engineer to join our clients growing development team. In this role, you will help design, build, and maintain scalable, secure, and user-friendly web applications that support our nationwide emergency response and AED program management platforms. This role requires expertise in Ruby on Rails, React (2+ years), and frontend UI development using ANT Design. Youll collabor
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Posted 18 days ago

Software Developer Level 3

General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Development Job Qualifications: Skills: Design, Detailed Design, Documentations, Software Design, Software Systems Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Designs, develops, troubleshoots and analyzes routine, c
Posted 23 days ago | Updated 16 hours ago

Full Stack Software Engineer-TS/SCI with polygraph required

LMI Government Consulting (Logistics Management In

•

McLean, Virginia, USA

Full-time

Overview LMI is a consultancy dedicated to improving the business of government, drawing from deep expertise in advanced analytics, digital services, logistics, and management advisory services. Established in 1961, LMI is a trusted third party to federal civilian, national security, and defense agencies, operating free of commercial and political bias. For nearly 60 years, LMI has worked with 40 government agencies. We believe government can make a difference, and we seek talented, hardworking
Posted 60+ days ago | Updated 7 hours ago

Software Engineering Senior Advisors- Hybrid

Cigna

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Remote or Miramar, Florida, USA

Full-time

The job profile for this position is Software Engineering Senior Advisor, which is a Band 4 Contributor Career Track Role with MD Live, Inc. Responsibilities- Develop software project solutions on the server or client side.Write new features with high quality tests.Review legacy code and refactor it as necessary.Conduct regular code reviews to improve code quality, design, and tests.Complete application development by coordinating requirements, schedules, and activities.Troubleshoot development
Posted 23 days ago | Updated 10 hours ago

Software Developer Level 3

General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Development Job Qualifications: Skills: Design, Detailed Design, Documentations, Software Design, Software Systems Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Designs, develops, troubleshoots and analyzes routine, co
Posted 24 days ago | Updated 22 hours ago

Full Stack Engineer

Artius Solutions

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Remote

Contract

Full Stack Engineer Real-Time Platform DevelopmentRemote | Contract | Part-time (20 hours/week) We're representing an early-stage product team building a modern execution layer for real-time transaction processing in a fragmented and underserved sector. They are now hiring a Full Stack Engineer to take ownership of a clean-slate build, leveraging well-defined logic from a simulation environment and translating it into live, compliant, and performant software. This is an opportunity to lead devel
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Posted 9 days ago | Updated 4 days ago

Software Developer Level 3

General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Development Job Qualifications: Skills: Design, Detailed Design, Documentations, Software Design, Software Systems Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Designs, develops, troubleshoots and analyzes routine, c
Posted 48 days ago | Updated 16 hours ago

Software Developer Level 3

General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Development Job Qualifications: Skills: Design, Detailed Design, Documentations, Software Design, Software Systems Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Designs, develops, troubleshoots and analyzes routine, co
Posted 47 days ago | Updated 22 hours ago

Sr. Backend Software Engineer, Fleetnet

Tesla Motors

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Remote or Palo Alto, California, USA

Full-time

Come join a small team of experts building the systems that connect Tesla and our customers to their cars. Companies have talked for years about a future of "connected cars." At Tesla, we're at the forefront of innovation by providing a complete suite of rich backend services to our exponentially growing fleets. The team specialized in IoT communication is in charge of every remote interaction with the vehicles (remote control, remote diagnostic, vehicle fleet telemetry for self-learning Autopi
Posted 3 days ago | Updated 10 hours ago

Application Security Engineer

Vaco by Highspring

•

Remote

Full-time

Application Security Engineer Remote (U.S.-based)Vaco is partnering with a high-growth SaaS company focused on modernizing the customer payments experience across industries. Their platform is built for scale, powering secure, API-driven payment flows that touch millions of users monthly. Following a recent funding round and continued growth, theyre looking to backfill a key AppSec position supporting secure code delivery across a fast-moving engineering org. This role is remote and reports dir
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Posted 1 day ago

Development Lead

GovCIO

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Remote

Full-time

Overview GovCIO is currently seeking a Development Lead to manage the team sustainment and enhancement work on A VA project. T his pivotal role will help coordinate the development efforts across different departments to ensure timely and efficient feature rollouts. This position is fully remote and available to candidates within the Continental United States (CONUS). Please note: The contract has not been awarded; this position remains unfunded and is contingent upon the award of the contract
Posted 19 hours ago | Updated 7 hours ago

Software Developer 3 (SWD3)

Realm One

•

Annapolis, Maryland, USA

Full-time

RealmOne is the GOAT - where your career can reach the greatest heights! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join u
Posted 28 days ago | Updated 10 hours ago

Engineering Manager (Institutional - Exchange)

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 19 days ago | Updated 10 hours ago