Principal, Software Engineer Jobs in Washington

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Lead Frontend / Angular Developer

Virtuous Tech Inc

McLean, Virginia, USA

Contract

Lead Frontend / Angular Developer Location: McLean, VA Duration: 12-14 months Job Description: Angular 14 or later, Ngrx, RxJS JavaScript, NodeJS, GitHub, understanding of end to end test and unit test Role Info: Hands on Sr. Frontend / Angular Developer role with strong Angular, Typescript, Ngrx, RxJS, Javascript, NodeJS, HTML, & CSS background Front end development Managing existing components and building new components using Angular 14 NodeJS 2 Weeks sprint cycle Unit testing using Cyp

QE Lead Performance Engineer

Marsh & McLennan Companies

Remote or White Plains, New York, USA

Full-time

Company: Marsh McLennan Agency Description: Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesn't happen overnight. It's a result of hard work by extraordinary people. The industry's brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as a QE Lead Performance Engineer at MMA. Marsh McLennan Agency (MMA) provides business insurance, employee health & be

Technical Lead (Developer/Java Fullstack)

LevelUp Squared

Ashburn, Virginia, USA

Full-time

We are looking for an experienced and hands-on Technical Lead with strong coding skills in Java, and exposure to Python. The ideal candidate will have a robust background in system design, and proficiency in AWS and Microservices. This role involves leading proof-of-concept (POC) initiatives, guiding agile development processes, acting as a tech lead, and addressing production issues. RESPONSIBILITIES: Spearhead the design and development of innovative and high-impact initiatives, ensuring align

Senior Appian Architect - Remote

ICF

Remote or Reston, Virginia, USA

Full-time

ICF's digital transformation and IT modernization division is seeking an experienced Enterprise Appian Architect for opportunities based in support of digital transformation, portfolio modernization, and delivery of enterprise strategies for a diverse set of federal clients. This role is a high visibility technology leadership position requiring an extensive background and operational experience with Appian platform advisory, adoption, migration patterns, architectural engagements, products, ser

Angular Developer /Lead Front End

NimbusAITech LLC

McLean, Virginia, USA

Contract

Lead Frontend / Angular Developer Location: McLean, VA Duration: 12-14 months Ex-Capital One Preferred Job Description: Angular 14 or later, Ngrx, RxJS JavaScript, NodeJS, GitHub, understanding of end to end test and unit test Role Info: Hands on Sr. Frontend / Angular Developer role with strong Angular, Typescript, Ngrx, RxJS, Javascript, NodeJS, HTML, & CSS background Front end development Managing existing components and building new components using Angular 14 NodeJS 2 Weeks sprint cycle U

Lead Frontend / Angular Developer

MethodHub

McLean, Virginia, USA

Contract

Lead Frontend / Angular Developer Location: McLean, VA Duration: 12-14 months Job Description: Angular 14 or later, Ngrx, RxJS JavaScript, NodeJS, GitHub, understanding of end to end test and unit test Role Info: Hands on Sr. Frontend / Angular Developer role with strong Angular, Typescript, Ngrx, RxJS, Javascript, NodeJS, HTML, & CSS background Front end development Managing existing components and building new components using Angular 14 NodeJS 2 Weeks sprint cycle Unit testing using Cy

Lead Front End /Angular Developer

NimbusAITech LLC

McLean, Virginia, USA

Contract

Job Title: Lead Frontend / Angular Developer Location: McLean, VA Duration: 12-14 months (Contract)-w2 Job Description We are looking for a hands-on Lead Frontend / Angular Developer with extensive experience in Angular 14+ and strong expertise in Typescript, NGRX, and RxJS. This role requires someone with a solid foundation in frontend technologies who will manage, maintain, and build components within a dynamic Agile team environment. Key Responsibilities Lead frontend development efforts leve

Senior Oracle Integration Cloud Lead Engineer / Architect

Think Big Solutions, Inc

Remote

Third Party, Contract

Senior Oracle Integration Cloud Lead Engineer / Architect Duration: 12+ Months Location: Remote Occasional Travel: 25% Key Cloud Modules: core HR, benefits, payroll, OTL, and absence management Must have heavy integration experience. Seeking a skilled sub-contractor with expertise in Oracle Integration Cloud (OIC) to support a client project implementing Oracle HCM Cloud. The role focuses on designing and building integrations between Oracle HCM, Oracle E-Business Suite (EBS) and external third-

Lead AI Solutions Engineer

Booz Allen Hamilton

Washington, District of Columbia, USA

Full-time

Job Number: R0223481 AI Solutions Engineer, Lead The Opportunity: AI is no longer just a research concept - it's becoming an essential part of how complex enterprises operate, compete, and deliver value. We're looking for engineers who are eager to work at the intersection of AI innovation and real-world system integration. You'll help architect, build, and deploy intelligent, agentic solutions that work across legacy infrastructure, modern platforms, and stakeholder needs. In this role, you'l

Clojure Developer

TechSpace Solutions Inc.

Remote

Contract, Third Party

Job Title: Tech Lead Clojure Developer Location: Chicago, IL or Remote but need to work US Central time zone Duration: 12+ months Job Description: We are seeking a Tech Lead Clojure Developer to join our LendTech team supporting Guaranteed Rate. The ideal candidate will have 5 10 years of overall IT experience with a minimum of 3 5 years in Clojure development. This role requires strong technical leadership, excellent communication skills, and the ability to work independently while collaboratin

Lead Java AWS Developer

eSolutionsFirst, LLC

McLean, Virginia, USA

Full-time

Job Summary: We are seeking a highly skilled and motivated Java/AWS Lead with over 10 years of experience in enterprise software development. The ideal candidate will have strong expertise in Java, Spring Boot, and cloud-native development on AWS, along with a deep understanding of modern software architecture. Preference will be given to candidates with hands-on experience or strong interest in AI/ML, Python, and Large Language Models (LLMs). Key Responsibilities: Lead end-to-end design, develo

Staff Product Security Engineer

Johnson & Johnson

Remote or Cincinnati, Ohio, USA

Full-time

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn m

Lead ServiceNow Developer - APM, ITOM - REMOTE

Perficient

Remote or Alpharetta, Georgia, USA

Full-time

We currently have a career opportunity for a Lead ServiceNow Developer to join our team located. This role is REMOTE. Job Overview: As a Lead Technical Consultant you will participate in all aspects of the software development lifecycle which includes estimating, technical design, implementation, documentation, testing, deployment and support of application developed for our clients. As a member working in a team environment you will work with solution architects and developers on interpretati

Staff C++ Engineer

Ranger Technical Resources

Remote

Full-time

C++ Staff Engineer #2483 Position Summary: Our partner, a leading SaaS provider of unified IT operations solutions designed to simplify and automate the management of IT infrastructure, is looking for a Staff C++ Engineer to join their team. You will design, develop, and maintain native C++ applications that integrate with a wide range of platform solutions driving automation, scalability, and seamless user experiences across IT infrastructure. You ll collaborate closely with cross-functional t

Systems Engineer

Rockwell Automation

Ohio, USA

Full-time

Rockwell Automation is a global technology leader focused on helping the world's manufacturers be more productive, sustainable, and agile. With more than 28,000 employees who make the world better every day, we know we have something special. Behind our customers - amazing companies that help feed the world, provide life-saving medicine on a global scale, and focus on clean water and green mobility - our people are energized problem solvers that take pride in how the work we do changes the world

**VP, Front End UI Lead Developer (Apps Dev Tech Lead Analyst )- C13

Citi

Remote or Tampa, Florida, USA

Full-time

Job Description The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities: Develop UI components, screens using the UI technologies such as Angular, React, Bootstrap, HTML5, CSS Develop applications using Java, UI Frame

Senior Java Lead/Developer, VP

Citi

Remote or Irving, Texas, USA

Full-time

About Citi: Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. As a bank with a brain and a soul, Citi creates economic value that is systemic

Sr. System Administrator TS/SCI Poly

Leidos

Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a System Administrator 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,

Sr. Systems Administrator TS/SCI Poly

Leidos

Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a System Administrator 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,

Lead Frontend Engineer

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Lead Frontend Engineer, Materia AI Thomson Reuters is looking for a skilled Lead Frontend Engineer to develop the next iteration of the user interface for our Materia AI product. Innovate in a Startup-Like Environment Be part of a fast-moving, forward-thinking group that is creating AI-driven software for accounting professionals. You'll work with top AI and software development experts, leveraging cutting-edge technology to build intelligent and scalable systems. This role is for the CoCoun