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Backend developer Jobs in Washington, DC

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Backend developer • washington dc

Last updated: 6 hours ago

Senior Software Developer (Python – Backend)

DRC SystemsMcLean, VA, United States
Full-time
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Title: Senior Software Developer (Python Backend) Location: McLean, VA (5 days - Onsite) Must Have Qualifications: 5+ Backend Development with Python engineering- large data libraries, ...Show more

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Developer

SiloSmashersArlington, VA, USA
Full-time
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DHS suitability clearance, as required by federal contract.The Developer will support DHS CISA by designing, building, and maintaining secure applications that enable mission-critical operations an...Show more

Senior Backend Engineer (Distributed Systems)

SOMERSET STAFFINGWashington, DC, United States
Full-time
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Randstad is seeking a high-caliber Senior Backend Engineer to join a premier client in Washington, DC.In this role, you will be a key architect of the future, designing and maintaining complex, hig...Show more

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HRIS Developer

Greenberg-Larraby, Inc. (GLI)Washington, DC, US
Full-time
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The HRIS Developer will play a vital role in developing, maintaining, and enhancing the Human Resources Information System (HRIS) to ensure it meets the organization’s needs.This role involves work...Show more

ServiceNow Developer

ThinkTekWashington, DC, USA
Full-time
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ThinkTek LLC is a fast-growing Certified SBA 8(a) and Service-Disabled Veteran-Owned Small Business (SDVOSB) company.We specialize in providing management and technology consulting services to supp...Show more

Application Developer

i360Arlington, Virginia
Full-time

Applications Developer to join our team.The ideal candidate is self-motivated and possesses the design skills to shape the digital experiences of i360's users and volunteers.They care deeply about ...Show more

Senior Backend Engineer (Distributed Systems)

Blue Ribbon Global TechnologiesWashington, DC, United States
Full-time
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Randstad is seeking a high-caliber Senior Backend Engineer to join a premier client in Washington, DC.In this role, you will be a key architect of the future, designing and maintaining complex, hig...Show more

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Senior.NET Developer

Mobomo, LLCDC, US
Full-time
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We are seeking a full-time, backend-focused Senior.NET Developer to support application modernization initiatives and ongoing maintenance of legacy systems.This role requires a hands-on engineer wi...Show more

Backend Java Developer

SynergisticITDowntown, DC, US
Full-time

Launch Your Tech Career with Confidence — SynergisticIT Is Your Next Best Move.Are you eager to start a thriving career in tech but unsure how to bridge the gap between learning and getting hired? ...Show more

Application Developer

TradeJobsWorkForce22214 Arlington, VA, US
Full-time

Analyze the ideas, business models, and user requirements to formulate a design strategy to carry out.Act as a tenant to draw out a workable application design and coding parameters with the essent...Show more

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CNO Developer

ring0Arlington, VA, US
Full-time

Job DescriptionRing0 Technologies (“Ring Zero”) is hiring a CNO Developer with experience in Windows kernel vulnerability research.The developer will be working supporting CNO development of Cyber ...Show more

RPA Developer

ProSidian Consulting, LLCAlexandria, VA, us
Full-time

ProSidian Seeks a RPA Developer | Human Capital Technology Support - Intelligent Automation (AI & RPA) [NSF0056056] for Program Support on a Exempt W2: No Overtime Pay Basis located in the Mid Atla...Show more

Java Backend Developer - Contingent

AretumMcLean, VA, US
Remote
Full-time
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Public Trust Eligibility Required.This is a contingent position, meaning employment is dependent upon the successful award of the associated contract to Aretum and completion of any required backgr...Show more

SAP Developer

CredenceMcLean, VA, US
Full-time
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At Credence, we support our clients’ mission-critical needs, powered by technology.We provide cutting-edge solutions, including AI/ML, enterprise modernization, and advanced intelligence capabiliti...Show more

AI Developer

DivIHN Integration IncWashington, DC, US
Permanent

DivIHN (pronounced “divine”) is a CMMI ML3-certified Technology and Talent solutions firm.Driven by a unique Purpose, Culture, and Value Delivery Model, we enable meaningful connections between tal...Show more

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Senior Backend Engineer (Distributed Systems)

Relig Staffing, Inc.Washington, DC, United States
Full-time
Quick Apply

Randstad is seeking a high-caliber Senior Backend Engineer to join a premier client in Washington, DC.In this role, you will be a key architect of the future, designing and maintaining complex, hig...Show more

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iOS Developer

Hudson ManpowerArlington, VA, US
Full-time

Seeking a motivated iOS Developer to design, develop, and maintain high-quality mobile applications for Apple devices.Must collaborate with cross-functional teams and follow best coding practices.D...Show more

Software Developer

Avid Technology ProfessionalsBethesda, MD, USA
Full-time

Bachelor’s degree and 8+ years of relevant experience; or 10 years with AA/AS; or 12 years with HS diploma.Proven experience in designing and implementing microservices architectures.Strong knowled...Show more

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Senior Software Developer (Python – Backend)

Senior Software Developer (Python – Backend)

DRC SystemsMcLean, VA, United States
12 hours ago
Job type
  • Full-time
  • Quick Apply
Job description
Title: Senior Software Developer (Python Backend)
Location: McLean, VA (5 days - Onsite)
Must Have Qualifications: 5+ Backend Development with Python engineering- large data libraries, working with databases, and working with large currency.
Position Overview
client's Investments & Capital Markets division is seeking a Senior Software Developer (Python Backend) to support the development and enhancement of mission-critical applications built on modern software development frameworks.
The ideal candidate will contribute across the full software development lifecycle, including new feature development, code refactoring, defect resolution, technical debt reduction, performance improvements, and migration initiatives. This role supports both customer-facing and internal applications/services and requires strong expertise in backend Python engineering and large-scale data processing.
Key Responsibilities
  • Design, develop, and maintain backend services and applications using Python
  • Work with large datasets, currency-related data, and high-volume transactional systems
  • Implement and optimize database interactions and data processing workflows
  • Participate in code refactoring, defect fixes, and technical debt remediation
  • Support application migrations and modernization efforts
  • Collaborate with cross-functional teams across development, testing, and operations
  • Contribute to testing, verification, deployment, monitoring, and maintenance of applications
  • Ensure solutions align with scalability, performance, and reliability standards
Must-Have Qualifications
  • 5+ years of backend development experience using Python
  • Strong experience working with large data libraries and frameworks
  • Hands-on experience with databases (relational and/or NoSQL)
  • Experience handling large currency or financial datasets
  • Solid understanding of software development lifecycle (SDLC)
  • Ability to work in a fast-paced, enterprise-scale environment
Nice-to-Have Skills
  • Experience in financial services or capital markets
  • Familiarity with modern software development frameworks
  • Exposure to cloud-based architectures and services
  • Strong debugging, performance tuning, and optimization skills