Senior Software Developer Jobs in Washington

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221 - 240 of 2,400 Jobs

Senior Back-End Developer

Maximus, Inc.

•

Fort Meade, Maryland, USA

Full-time

Description & Requirements Maximus is seeking a Senior Back-End Developer to join our team! The Senior Back-End Developer provides subject matter proficiency for work described in the task. Responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements. Typical duties include analysis, planning, developing requirements documents, building functional models, developing procedures, developing functional architectures, and other relat
Posted 29 days ago | Updated 2 hours ago

Sr. Software Engineer in Test (SDET)

Tential

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Remote or Baltimore, Maryland, USA

Contract

Our client is the largest non-bank lender in the United States. As part of a demonstrated commitment and investment in innovation and new ways of reaching our customers, they are transforming their industry-leading lending services. They are seeking a talented and versatile Full-Stack Software Development Engineer in Test providing exceptional customer experiences with their loan originations solutions. You will collaborate with cross-functional teams to incrementally deliver high-quality softwa
Posted 6 days ago | Updated 3 hours ago

Software Developer IV

General Atomics

•

Chantilly, Virginia, USA

Full-time

Job Summary At General Atomics Integrated Intelligence, Inc. (GA-i3), we are redefining situational awareness for the Intelligence Community, Department of Defense, and commercial sectors. Our innovative platforms-such as Optix, Thresher and Dragonspell-process petabytes of streaming data in near real time, applying advanced algorithms and machine learning to deliver actionable intelligence. Our browser-based applications empower users to visualize, analyze, and understand complex environments
Posted 36 days ago | Updated 6 hours ago

Senior Oracle eCommerce Software Engineer

Navtech Inc

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Rockville, Maryland, USA

Third Party, Contract

Hi Folks, My name is Kevin Smith, and I am a staffing specialist at Navtech USA. I have an open opportunity that you may be a good fit for. If this sounds like something you would be interested in, please get in touch with me as soon as possible at with your most recent resume, your ideal time and number for communication, and the expected pay rate for C2C/1099/W2. Job Title: Senior Oracle eCommerce Software Engineer Location: Rockville, MD -Hybrid Duration: 12 months Passport number is mand
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Posted 27 days ago | Updated moments ago

Senior Software Engineer - .NET Core/React - Fintech

Motion Recruitment Partners, LLC

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Washington, District of Columbia, USA

Full-time

This is a full-time role with a high-growth company in the payments and commerce space, supporting some of the world's largest brands. This position is hybrid preferred but open to remote. You'll work with .NET Core, React (or Angular), and SQL to build secure, scalable web applications that power in-store, online, and mobile experiences across industries. The company offers the opportunity to work on a global, enterprise-grade platform with a tight-knit engineering team. If you're passionate ab
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Posted 54 days ago | Updated 2 hours ago

Software Developer II

Parsons Services Company

•

Fort Belvoir, Virginia, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Software Developer II Parsons is seeking a Software Engineer in a multi-disciplinar
Posted 60+ days ago | Updated 6 hours ago

Senior System Engineer and Tester

Zolon Tech Solutions Inc

•

Merrifield, Virginia, USA

Third Party, Contract

Job Description: Senior System Engineer and Tester - Onsite in Merrifield VA Senior System Engineer and Tester to join our Engineering, Delivery & Mobile Technology team to support one of our customers. The selected candidate will conduct technology evaluations assessing the feasibility of proposed concepts, develop requirements documents and statements-of-work to support the internal customers business needs, design and implement efficient technical solutions, evaluate, test, and certify all s
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Posted 6 days ago

Senior Full-Stack Software Engineer

Boeing Company

•

Chantilly, Virginia, USA

Full-time

Senior Full-Stack Software Engineer Company: The Boeing Company The Boeing Company is seeking a Senior Full-Stack Software Engineer to join the FishTools program within the Ground Mission Management Software (GMM) team in Chantilly, VA or Aurora, CO. The FishTools program develops and maintains a Collection Planning and Mission Management system widely used within the Intelligence community. This software system has become an integral part of imaging operations by facilitating the scheduling,
Posted 60+ days ago | Updated 5 hours ago

Senior Software Engineer - 25k Sign on Bonus

Leidos

•

Columbia, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Sr. Software Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting,
Posted 60+ days ago | Updated 5 hours ago

Sr. Python ETL Developer

Mindlance

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Washington, District of Columbia, USA

Third Party, Contract

Title: Sr. Python ETL Developer Duration: 12 Months - Long Term Location: Washington, DC 5 Days onsite per week from Day1 Background: The Enterprise Data Management (EDM) team is seeking a Python ETL Developer to work on sourcing data to their cloud platform. The candidate should have prior experience working in Python data stack and very good SQL experience. Python scripting in the data space is a must. The person would be working on sourcing the data into the cloud platform from internal/ext
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Posted moments ago

Senior Java/J2EE Developer

Pyramid Consulting, Inc.

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McLean, Virginia, USA

Contract

Immediate need for a talented Senior Java/J2EE Developer. This is a 06+ Months Contract opportunity with long-term potential and is located in McLean, VA (Onsite). Please review the job description below and contact me ASAP if you are interested. Job ID:25-77663 Pay Range: $60 - $65/hour. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location). Key Responsibilities: Engage business users to d
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Posted moments ago

Senior / Lead Appian Developer - Level 3

TECH Tammina

•

McLean, Virginia, USA

Contract

Role: Full Stack Specialist (Appian Developer Lead) Location: Onsite McLean, VA Assignment Type: 3M CTH Must Haves: 10+ years of experience leading a team of developers, 7+ years with Appian - design, development, configuration and Infrastructure. 5+ years of Core Java and extensive experience developing Java plugin for Appian. 5+ years using latest deployment methodologies (Automated pipelines, Atlassian tools). 5+ years of experience with databases, API's and ability to create integration wi
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Posted 44 days ago | Updated 1 day ago

Sr. Full Stack Developer (Mobile Apps)

Apex Systems

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Columbia, Maryland, USA

Full-time

Job#: 2079248 Job Description: Apex Systems has an immediate need for a Sr. Full Stack Developer specializing inmobile app development for iOs and Andriod Overview: Lead the design, development, and maintenance of scalable web and mobile applications. Mentor engineers, ensure performance and security standards, and collaborate across teams to deliver high-quality software solutions. Key Responsibilities: Develop full-stack applications using Node.js, Angular, JavaScript, HTML/CSS, and RESTful
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Posted 15 days ago | Updated 6 hours ago

Senior CNO Software Engineer - OS, Hypervisor, UEFI/BIOS Specialist

Draper

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Remote or Reston, Virginia, USA

Full-time

Overview: Draper is an independent, nonprofit research and development company headquartered in Cambridge, MA. The 2,000+ employees of Draper tackle important national challenges with a promise of delivering successful and usable solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our multidisciplinary teams of engineers and scientists work in a collaborative environment that inspires the cross-fertilization of ideas
Posted 58 days ago | Updated 6 hours ago

Cyber Capability Developer (Senior)

American Systems Corporation

•

Springfield, Virginia, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities Conducts research in design, development, testing and utilization of electronic data processing software.Designs, develops, documents, tests and debugs applications software and systems that contain logical and
Posted 58 days ago | Updated 6 hours ago

C / C++ / Java Software Developer

Cymertek Corporation

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Reston, Virginia, USA

Full-time

C / C++ / Java Software Developer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a talented and versatile C / C++ / Java Software Developer to join our dynamic team. In this role, you will work on developing, testing, and optimizing high-performance software solutions across multiple platforms. The ideal candidate will be passionate about coding, problem-solving, and working in a collaborative environme
Posted 60+ days ago | Updated 6 hours ago

Senior Cyber Capability Developer (Reverse Engineer)

Leidos

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Lorton, Virginia, USA

Full-time

Description Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. The Leidos National Security Sector combines technology-enabled services and mission software capabilities
Posted 12 days ago | Updated 1 day ago

Senior Application Developer

Motion Recruitment Partners, LLC

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Arlington, Virginia, USA

Full-time

We're working with a mission-driven organization in Washington DC that's looking to bring on a Senior Application Developer. The team is focused on delivering high impact tools and data driven products for the credit union industry. The tech stack includes C#, .NET, Angular 17, TypeScript, and SQL. This is a full-time hybrid role with four days a month onsite. This is a great role for someone who wants to work on meaningful products in a stable and collaborative environment. The team is small an
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Posted 51 days ago | Updated 3 hours ago

Senior Salesforce Developer (CPQ)

High Trail Inc

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Arlington, Virginia, USA

Full-time

Responsibilities Provides hands on configuration leadership and best practice guidance for SFDC solutions.Provides creative architecture and coding solutions to help the business.Participates in the full application life cycle from design to development, testing, deployment and support of Salesforce, Force.com, and CPQ applications.Designs and develops reusable code using the Salesforce.com and Force.com developer toolkit.Develops web services API integrations with other systems including Salesf
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Posted 28 days ago

Senior Engineering Manager / Software - Flight Simulation (Onsite)

RTX Corporation

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Sterling, Virginia, USA

Full-time

Date Posted: 2025-06-27 Country: United States of America Location: HVA34: Sterling, VA 22640 Davis Dr , Sterling, VA, 20164-7104 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret Senior Engineering Manager / Software - Flight Simulation (Onsite) The Simulation & Training Solutions (STS) Software Engineering de
Posted 6 days ago | Updated 5 hours ago