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Backend developer Jobs in Washington, DC

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Backend developer • washington dc

Last updated: 3 days ago

Senior Software Developer (Python – Backend)

DRC SystemsMcLean, VA, United States
Full-time
Quick Apply

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

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

Software Developer

SAICMclean, VA, US
Full-time

SAIC is seeking a Software Developer that will be part of an integrated team to create, update, and maintain a federated search and discovery software system to integrate data related to financial ...Show more

Salesforce Developer

Yudrio, IncWashington, District of Columbia, United States
Full-time

Yudrio is seeking a skilled and collaborative Salesforce Developer with strong experience in Copado, OmniScript (OmniStudio), and an active Salesforce Platform Developer certification to support th...Show more

Appian Developer

BayNova LLCArlington, VA, US
Full-time
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BayNova has an exciting opportunity for an Appian Developer to join our team in support of an important federal government client, in a fully remote / work from home role.You will be supporting a f...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

iOS Developer

Hudson ManpowerWashington, DC, 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.NET Developer

Evolver FederalWashington, DC, USA
Full-time
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Evolver is a cybersecurity and digital transformation company supporting national defense, federal civilian agencies, and Fortune 500 organizations.We help customers secure critical systems, modern...Show more

Web Developer

TradeJobsWorkForce22219 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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Splunk Developer

00100 LEIDOS, INC.Alexandria, VA
Full-time

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer’s success.We empower our teams, contribute to our communities, an...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

Javascript Developer

Akaasa TechnologiesMcLean, VA, United States
Full-time
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ONLY PRIOR CAPITAL ONE CONTRCATOR Javascript Developer Mandatory experience with React, Redux, NodeJS, AWS Lambda, AWS ECS, PostgresSQL, Mocha, Jest, Playwright, Vitest Job Location McLean VA(1 st ...Show more

Python Developer

pinnacleArlington, VA, US
Full-time

Job DescriptionPinnacle Government Solutions is a minority-owned small business that provides Software, AI/ML, and Cloud Engineering Solutions for our Department of Defense, Intelligence Community,...Show more

Java Backend Developer - Contingent

AretumMcLean, VA, US
Remote
Full-time
Quick Apply

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

RPA Developer

ProSidian Consulting, LLCAlexandria, Virginia, United States
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

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

Software Developer

NeoMaxMcLean, VA, US
Full-time

Job DescriptionWe are hiring a Software Developer! You will support a team specializing in designing, engineering, implementation, development, and maintenance of enterprise quality mission systems...Show more

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Senior Software Developer (Python – Backend)

Senior Software Developer (Python – Backend)

DRC SystemsMcLean, VA, United States
4 days ago
Job type
  • Full-time
  • Quick Apply
Job description
Only W2 (No C2C, No 1099, No H1b, No OPT EAD)
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