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Backend developer Jobs in Washington, DC

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Backend developer • washington dc

Last updated: 14 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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Business developer

All CaresWashington, DC, United States
Full-time

Business Developer Opportunity.Cephalgo is a Strasbourg-based technology company founded in 2020, focused on developing AI solutions that ensure safety, compliance, and trust in human-AI interactio...Show more

Fullstack Developer

LinTech GlobalArlington, VA, USA
Full-time
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Dexian Government Solutions is recruiting for a Fullstack Developer to support our USPSOIG contract in Arlington, Virginia.Work with data scientists and analysts to rapidly design, implement, test,...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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Software Developer

Dezign Concepts LLCMcLean, VA, US
Full-time
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Active Top Secret Clearance with Poly Required (salary is commensurate with education and experience) Job Summary The organization provides data-driven, business analysis to support senior organiza...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

System Developer

Patriot, LLCWashington, DC, US
Full-time
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Patriot, LLC is seeking an experienced System Developer to join our onsite team in Washington D.Participate in the architecture and design of new and existing systems.Develop and maintain system an...Show more

Python Developer

Constellation IncWashington, DC, DC, US
Full-time
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Job Description: Python Developer The Python Developer is responsible for designing, developing, and implementing Python based automation to execute the reconciliation process.They are responsible ...Show more

Drupal Developer

Red Cedar ConsultancyWashington, DC, USA
Full-time
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The candidate will work on an integrated project scrum team that is responsible.Drupal website, collaborating with testers, a scrum master, a technical SME, a project manager, and another Drupal de...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

Software Developer

The Computer Merchant, LTD.Arlington, VA, US
Full-time

JOB TITLE: SOFTWARE DEVELOPER JOB LOCATION: ARLINGTON, VA WAGE RANGE*: 60.PER HOUR JOB NUMBER: SAIJP00038727 REQUIRED EXPERIENCE: Professional experience in C++ software development.Professional ex...Show more

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Web Developer

TradeJobsWorkForce22216 Arlington, VA, US
Full-time

Web Developer Job Duties: Regular exposure to business stakeholders and executive management, as well as the authority and scope to apply your expertise to many interesting technical problems.Cand...Show more

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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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iOS Developer

Hudson ManpowerMcLean, 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

Senior Backend Engineer (Distributed Systems)

Relig Staffing, Inc.Washington, 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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Python Developer

Tactibit Technologies LLCSuitland, Maryland, United States
Permanent

Tactibit Technologies provides innovative information technology, cybersecurity, and cloud support services to the Federal Government.We support some of the nation's most critical and demanding pro...Show more

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Senior Software Developer (Python – Backend)

Senior Software Developer (Python – Backend)

DRC SystemsMcLean, VA, United States
20 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