Senior Software Developer Jobs in District of Columbia

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241 - 260 of 2,756 Jobs

Senior Software Engineer

Motion Recruitment Partners, LLC

•

Arlington, Virginia, USA

Full-time

A fast-growing startup based in Ballston, VA, specializing in retail energy sales and digital petition tracking is looking for a mid-to-senior Full-Stack Developer with strong skills in .NET and React for a full-time position. You'll be working primarily onsite four days per week in their Ballston office, with flexible hours and a casual, tech-startup atmosphere. This company has built an ecosystem of digital tools used by energy reps in the field and they've recently expanded into the political
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Posted 15 days ago | Updated 11 hours ago

Senior Software Engineer / GenAI

Motion Recruitment Partners, LLC

•

Washington, District of Columbia, USA

Full-time

A prominent fintech company based in Washington, DC is searching for a Senior Software Engineer to join their fast-growing team. Their SaaS is one of the leading personal finance apps, boasting 5+ million active members. Including features like their subscription management tool, bill negotiation, and spending insights, they aim to help their users optimize financial health through saving them money as well as helping them build wealth for a greener future. Preferred Skills & Experience 5+ year
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Posted 48 days ago | Updated 11 hours ago

Software Developer

ManTech

•

Chantilly, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Senior Software Developer - Cloud to join our team in Chantilly, VA. Responsibilities include but are not limited to:Designing and implementing large-scale ingest systems in a Big Data environmentOptimizing all stages of the data lifecycle, from initial planning, to ingest, through final display and beyondDesigning and implementing data extraction, cleansing, transformation, loading, and replication/distributionDeveloping custom solutions/c
Posted 46 days ago | Updated 10 hours ago

Senior Front End Developer

Accenture LLP

•

Washington, District of Columbia, USA

Full-time

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company and part of global Accenture, to do work that matters in a collaborative
Posted 17 days ago | Updated 2 hours ago

Senior Software Engineer

Booz Allen Hamilton

•

Herndon, Virginia, USA

Full-time

Job Number: R0221722 Software Engineer, Senior The Opportunity: As a software engineer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop software but to create a system that will make a difference, we need you on our team. We're looking for an experienced engineer like you with the skills needed to develop software and systems from vision to production-ready. This role is more than just coding. As a s
Posted 8 days ago | Updated 3 hours ago

Homes.com - Senior Software Engineer (C#/.NET)

Costar Group

•

Arlington, Virginia, USA

Full-time

Homes.com - Senior Software Engineer (C#/.NET) Job Description CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. Homes.com is already one of the fastest growing real estat
Posted 13 days ago | Updated 2 hours ago

Senior Software Engineer / Python / TypeScript

Motion Recruitment Partners, LLC

•

Washington, District of Columbia, USA

Full-time

A privately funded AI startup that is leveraging LLMs to streamline work flows and proposal approvals for US Government Agencies is hiring for a Senior Software Engineer to join their team. The startup has reached several million in annual recurring revenue within the last 2 years is hiring for several full stack engineers to the team. This position is full life cycle development where you will be owning your code from design, implementation and deployment. In this role you you will be building
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Posted 29 days ago | Updated 11 hours ago

Senior Full Stack Java Developer - W2 - Day-1 Onsite

Saksoft

•

McLean, Virginia, USA

Contract

Position: Senior Full Stack Developer (x3 Openings)Location: Onsite in McLean, VA (Monday Friday) Local candidates within a 40-mile commute strongly preferred Duration: 6 Months Role Overview:Client is seeking three experienced Senior Full Stack Developers to join their Business Engineering team within the Investments and Capital Markets division.This role focuses on modernizing a front-office trading application vital to I&CM operations.You ll collaborate closely with cross-functional teams to
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Posted 13 days ago

Senior Software Engineer

Lockheed Martin

•

Maryland, USA

Full-time

Job ID: 691222BR Date posted: Apr. 10, 2025 Description:This position may be eligible for a $25K sign on bonus for external hires! WHAT WE'RE DOING Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon each minute: Financial assets. Hea
Posted 7 days ago | Updated 6 hours ago

Appian Senior Developer

General Dynamics

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Washington, District of Columbia, USA

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: MBI (T2) Job Family: Software Development Job Qualifications: Skills: Software Development, Software Projects, Software Systems Certifications: None Experience: 10 + years of related experience ship Required: No Job Description: Deliver simple solutions to complex problems as an Appian Senior Developer at GDIT. Here, you'll tailor cutting-ed
Posted 60+ days ago | Updated 2 hours ago

Senior Manager, Software Engineering, Slack (People Leader)

Capital One

•

McLean, Virginia, USA

Full-time

Senior Manager, Software Engineering, Slack (People Leader) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who solve real problems and meet real customer needs. We are seeking a Senior Manager of Software Engineering who is passionate about marrying data with emerging
Posted 39 days ago | Updated 2 hours ago

Senior Lead Software Engineer (Full Stack)

Capital One

•

McLean, Virginia, USA

Full-time

Senior Lead Software Engineer (Full Stack) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who solve real problems and meet real customer needs. We are seeking Full Stack Software Engineers who are passionate about marrying data with emerging technologies. As a Capital
Posted 56 days ago | Updated 2 hours ago

Senior Software Engineer

RTX Corporation

•

Sterling, Virginia, USA

Full-time

Date Posted: 2025-06-25 Country: United States of America Location: VA542: 22260 Pacific Blvd, Dulles 22260 Pacific Boulevard Building CC4, Sterling, VA, 20166-6916 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret Raytheon Company Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technolo
Posted 5 days ago | Updated 2 hours ago

Sr. Software Engineer TS/SCI Polygraph $25k SIGN ON!

Leidos

•

Franconia, Virginia, USA

Full-time

Description Leidos has an exciting opportunity for a Senior Software Engineer to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a nationally significant and fast-paced cryptographic key management program and we are extending a $25,000.00 SIGN ON BONUS! Program execution here follows DEVOPS best practices and employs robust development, test, and production environments. Additionally, the program is using Behavioral Driven Development (BDD) and t
Posted 11 days ago | Updated 10 hours ago

Sr Developer, Software (IT)

DaVita Inc.

•

Remote or DeLand, Florida, USA

Full-time

Posting Date 06/12/2025 3000 DaVita Way, Deland, Florida, 32724-2039, United States of America Developer, IT Software (Labs) General Purpose of the Job The Developer, IT Software (Lab) designs and develops .NET applications. Specifically, this position may develop applications using a combination of .NET technologies (e.g., C# and ASP.Net) and database objects (e.g., tables, triggers, packages, stored procedures and functions). This position also writes technical specifications, supports qua
Posted 60+ days ago | Updated 2 hours ago

FLEX Senior Software Engineer - SEO

Marriott International

•

Bethesda, Maryland, USA

Full-time

Job Description This is a temporary position. JOB SUMMARY As a member of the Enterprise Search Engine Optimization Development team, you will be a part of a team responsible for implementing and maintaining technical SEO enhancements across the diverse portfolio of Marriott's websites and systems. This individual will serve as a senior technical resource responsible for managing the full software development lifecycle, from requirements analysis to deployment, ensuring high-quality, scalable,
Posted 24 days ago | Updated 2 hours ago

Senior Lead Software Engineer, Back End (Enterprise Platforms Technology)

Capital One

•

McLean, Virginia, USA

Full-time

Senior Lead Software Engineer, Back End (Enterprise Platforms Technology) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who love to solve real problems and meet real customer needs. Enterprise Platforms Technology (EPTech) comprises many of Capital One's most important
Posted 1 hour ago

Sr. Android Developer - Hybrid Role - LOCALS ONLY

Zillion Technologies

•

Vienna, Virginia, USA

Contract

NO THIRD PARTIES PLS THIS IS A DIRECT CLIENT REQUIREMENT ! Those authorized to work without sponsorship are encouraged to apply please. Reach Saakshi Sahni -- || 703-CALL-955-NOW-1070 Direct BANKING Client Android Developer $$ BEST RATES AVAIALBLE $$ Duration: Long Term Ongoing Project with NO end Date Hybrid 2x a week in the office in Vienna, VA 22180 Hours: Monday Friday, 8:00 AM 4:30PM EST Location: Hybrid Local -- Vienna, VA / 2 DAYS A WEEK onsite / 3 days Remote Job Description: Required (
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Posted 60+ days ago | Updated 27 days ago

FLEX Senior Software Engineer - Front-End Web

Marriott International

•

Bethesda, Maryland, USA

Full-time

Job Description This is a temporary position. As a Senior Java, Full stack and Adobe Experience Manager (AEM) Software Engineer at Marriott, you will be working on a state of the art React based micro-ui architecture, utilizing AEM as the CMS and a Java based services. You will help build the next generation hospitality web portal to assist our customers in traveling the world for work and pleasure. You will work with product owners, UX, back-end/front-end engineers and QA engineering to build
Posted 11 days ago | Updated 2 hours ago

Senior C++ Developer

Judge Group, Inc.

•

Tysons, Virginia, USA

Contract

Location: Tysons Corner, VA Description: The Judge Group's direct client in the financial services domain is seeking a Senior/ Lead C++ Developer in McLean, VA/ Tysons Corner, VA, for a hybrid role. About the Role: In this role, you will be responsible for designing, developing, and optimizing high-performance software solutions using C++. You will work closely with cross-functional teams to architect and implement robust, scalable, and maintainable code. Key Responsibilities: Design, imple
Posted 32 days ago | Updated 11 hours ago