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  • Senior Telephony Genesys Cloud Architect

     ...call flows. Design and implement SIP RTP VoIP WebRTC QoS/CoS and carrier interconnection solutions. Develop and oversee integrations using REST APIs JSON webhooks and middleware . Integrate Genesys Cloud with enterprise platforms such as Salesforce... 
    Suggested
    Full time

    Purple Drive

    Frederick, MD
    9 days ago

  • Mid-Level Software Engineer

    $87.1k - $157.45k

     ...an Intelligence Community customer. In this role, you’ll design, develop, and deliver modern software solutions that enable critical...  ...functional development teams to build and maintain microservices, APIs, and web-based applications that support GEOINT data access, visualization... 
    Suggested
    Full time
    Contract work

    Leidos

    Gaithersburg, MD
    7 days ago

  • DevSecOps / Python Engineer

    $190k - $215k

     ...scanning, container scanning, SBOM generation, artifact signing, and security gates into delivery pipelines. Develop production-grade Python automation, APIs, services, and operational tooling using Python, FastAPI/Flask, REST, and scripting frameworks. Automate infrastructure... 
    Suggested
    Contract work
    Remote work

    Edgewater Federal Solutions, Inc.

    Frederick, MD
    4 days ago

  • Edifecs Application Engineer

    $85.39k - $116.98k

     ...Portal (SFTP), File Transfer Protocol Secure (FTPS), Hypertext Transfer Protocol Secure ( channels Application Programming Interface (API)-based integrations and gateway services Experience with EDI troubleshooting providing root-cause analysis of transaction failures... 
    Suggested
    Full time
    Remote work

    Syms Strategic Group, LLC (SSG)

    Frederick, MD
    3 days ago

  • Senior Software Developer - DoD, Hybrid, Java/Full Stack

    MANTECH seeks a career and customer-oriented Software Developer, SME to join our team at Ft Detrick in Frederick, MD. This on-site role...  ...Engineering context. The position emphasizes Agile practices, RESTful APIs, and cybersecurity standards with opportunities to grow in an... 
    Suggested
    Remote work

    ManTech

    Frederick, MD
    3 days ago

  • Mid-Level Backend Software Engineer

    $87.1k - $157.45k

     ...application used across the organization for analytics and reporting. You’ll help build and maintain core backend services, develop RESTful APIs, support data‑driven functionality, and contribute to ongoing system enhancements within a Linux‑based environment. Your work... 
    Suggested
    Full time

    Leidos

    Gaithersburg, MD
    3 days ago

  • Senior UI/UX Engineer

    $107.9k - $195.05k

     ...CandidateWe're looking for someone who is more than a front-end developer. You are passionate about how technology feels and functions...  ...development tooling.Experience developing or consuming RESTful APIs and integrating UI applications with backend services.Experience... 
    Suggested
    Full time
    Contract work

    Leidos

    Gaithersburg, MD
    4 days ago

  • Software Engineer

     ...position is primarily responsible for researching, designing, and developing computer software systems, in conjunction with hardware product...  ...hardware ·        Design and develop flexible and powerful APIs to support higher level software system integration ·... 
    Suggested
    Remote work
    Flexible hours

    WGS SYSTEMS LLC

    Frederick, MD
    a month ago

  • Software Developer

    $163.1k - $289.4k

     ...MANTECH seeks a motivated, career and customer-oriented Software Developer, Subject Matter Expert to join our team in Ft Detrick, MD. This...  ...Full Stack Development, implementing and consuming RESTful APIs At least 5 years of experience working on an Agile team and following... 
    Suggested
    Hourly pay
    Full time
    Contract work
    Temporary work
    Work experience placement
    Work at office
    Local area
    Remote work
    3 days per week

    ManTech

    Frederick, MD
    3 days ago

  • Senior Cognos Developer

     ...in IBM Cognos Analytics (Report Authoring, Dashboard Authoring).Develop interactive dashboards and visual analytics, potentially cross-referencing...  ...tools such as SSIS or Informatica.Experience integrating REST APIs or web services into reporting solutions.Experience with Azure... 
    Suggested
    Full time
    Part time

    Frederick National Laboratory for Cancer Research

    Frederick, MD
    4 days ago

  • Mid-Level Test Engineer

    $87.1k - $157.45k

     ...an opportunity to work alongside talented engineers, software developers, product managers, and mission experts to build innovative geospatial...  ...such as Cypress, Playwright, or equivalent.Experience with API testing using tools such as Postman or REST Assured.Familiarity... 
    Suggested
    Full time
    Contract work

    Leidos

    Gaithersburg, MD
    6 days ago

  • Data Platform Engineer

    $85.39k - $116.98k

    Syms Strategic Group (SSG) is seeking a talented Data Platform Engineer Location: Remote Department: Veterans Affairs (VA) Type: Full Time Min. Experience: Experienced Security Clearance Level: Public Trust (MBI) Salary Range: $85389 - $116975 If...
    Suggested
    Full time
    Remote work

    SSG

    Frederick, MD
    15 days ago

  • Tools Technical Lead

     ...initiatives using tools such as Packer, Ansible, Selenium, and API-based frameworks.  Assist in implementing DevSecOps and Infrastructure...  ...of tool configurations, integrations, and dependencies, and develop SOPs and runbooks to support knowledge management and... 
    Suggested
    Immediate start

    A Square Group

    Frederick, MD
    2 days ago

  • Lead Test Engineer

    $92.3k - $166.85k

     ...validate system behavior under load and stress conditions Execute integration testing across platform services, APIs, and external system interfaces Develop test plans and strategies aligned with sprint and PI objectives Analyze defect patterns and test metrics to identify... 
    Suggested
    Full time
    Contract work
    Remote work
    Work from home

    Leidos

    Gaithersburg, MD
    3 days ago

  • Mid-Level UI/UX Developer

    $87.1k - $157.45k

     ...impact user experience for mission-critical systems. As a UI/UX Developer supporting a premier Intelligence Community customer, you’ll...  ...visualization tools (e.g., Grafana or similar) Familiarity with REST APIs and backend integration Exposure to CI/CD pipelines and front-... 
    Suggested
    Contract work

    Leidos

    Gaithersburg, MD
    2 days ago

  • Technology Services & Solutions Engineer

    Do you want more than ticket grinding? More than basic installs? More than being stuck in the same role with no path forward?  Teltek is hiring a Technology Services & Solutions Engineer —a hybrid role for a Tier 2 MSP technician who wants to grow into a senior engineer...
    Full time
    Part time
    Work at office
    Local area
    Remote work
    Monday to Friday

    Teltek Systems

    Frederick, MD
    3 days ago

  • Embedded Software Engineer

    $72.11 - $96.15 per hour

     ...Embedded Software Engineer This role offers an exciting opportunity for an experienced Embedded Software Engineer to develop mission‑critical software for aerospace applications within a dynamic, growing engineering team. You will spend approximately 70% of your time on... 
    Contract work
    Temporary work
    Work at office

    Talentify.io

    Frederick, MD
    3 days ago

  • Software Engineer - Java

    $150k - $170k

     ...collaborating with cross-functional teams to deliver high-quality software products that meet business needs.Key ResponsibilitiesDesign, develop, and maintain scalable software applications using Java and Microservices architecture.Collaborate with product owners and... 

    CyberCoders

    Frederick, MD
    3 days ago

  • Sr Oracle EBS/APEX Application Developer - Interfaces & Integrations

    $100k - $130k

     ...agencies. We are seeking a Senior Oracle EBS/APEX Application Developer to support the implementation, integration, and ongoing operation...  ...inbound and outbound integrations using SQL, PL/SQL, EBS APIs, open interfaces, concurrent programs, and REST/SOAP web services... 
    Permanent employment
    Temporary work
    Visa sponsorship

    i360technologies, Inc.

    Gaithersburg, MD
    a month ago

  • Oracle EBS Application Developer

    $110k - $120k

     ...seeking an experienced R12 Oracle EBS RICE and PL/SQL Financials R12 Developers to support an existing R12 Federal Financials shared service...  ...Procedural Language/Structured Query Language (PL/SQL), R12 APIs and web services  Utilize R12 APIs to establish web services... 
    Permanent employment
    Temporary work
    Visa sponsorship
    Monday to Friday

    i360technologies, Inc.

    Gaithersburg, MD
    15 days ago

  • Senior Salesforce Developer Architect

    $150k

     ...Leidos is seeking a highly skilled and motivated Senior Salesforce Developer Architect to join our enterprise application development team....  ...Web Components (LWC), Visualforce, SOQL/SOSL, and Salesforce APIs.Configure and maintain Salesforce objects, fields, page layouts... 
    Full time
    Remote work
    Home office

    Leidos

    Gaithersburg, MD
    3 days ago

  • Mid-Level Backend Software Engineer

     ...successfully pass a Polygraph Responsibilities Design, develop, test, and maintain backend application components using Java or...  ...Python Hands-on experience building and maintaining RESTful APIs Basic to moderate experience with SQL capability, including... 
    Contract work
    Temporary work
    Local area

    System One

    Gaithersburg, MD
    4 days ago

  • Senior Software Engineer - Unified Trial Solutions - Evinova

    $127.35k - $167.15k

     ...continuously improving both your own work and the way the team develops software.We are also building an AI-driven engineering culture....  ...frontend and configuration services using Node.js.Build and consume APIs, including GraphQL, that connect frontend experiences with the... 
    Full time
    Temporary work
    Work at office
    Worldwide
    Relocation
    3 days per week

    AstraZeneca

    Gaithersburg, MD
    6 days ago

  • Senior Software Engineer (5G)

     ...OverviewWe are seeking a Senior Software Engineer (5G) to design, develop and optimize software for 5G modems and related subsystems. The...  ...and modem features, building robust abstractions (HAL/APIs), and ensuring performance and standards compliance (3GPP/GSMA).... 

    CyberCoders

    Germantown, MD
    4 days ago

  • Software Developer

    $87.1k - $157.45k

    Leidos is seeking Lead Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of...  ...testing tools such as Junit and MockitoExperience with RESTful API, JSON, XML, XSDExperience with Spring Framework, Spring... 
    Full time
    Remote work

    Leidos

    Gaithersburg, MD
    4 days ago

  • Software Engineer SME

    $131.3k - $237.35k

     ...engineers, architects, mission experts, and government stakeholders to develop and deliver secure, scalable, and modern software capabilities...  ..., and engineering best practices.Develop and maintain RESTful APIs, microservices, data services, and system integrations.Build... 
    Full time
    Contract work
    For contractors

    Leidos

    Gaithersburg, MD
    5 days ago

  • Sr. Software Developer

    $107.9k - $195.05k

    What if the software you developed directly enabled some of the nation's most critical missions? As a Senior Software Developer, you'll...  ...coding standards and best practices.Design and implement RESTful APIs, microservices, and distributed application architectures.... 
    Full time
    Contract work

    Leidos

    Gaithersburg, MD
    7 days ago

  • Oracle Fusion Cloud - Integration Developer

    $90k - $120k

     ...Oracle Fusion Cloud Integration Developer The Opportunity At i360technologies, we deliver business consulting and technology solutions...  ...integration platforms. ~ Working knowledge of REST/SOAP APIs, XML, JSON, and XSLT. ~ Familiarity with file-based... 
    Permanent employment
    Full time
    Temporary work

    i360technologies, Inc.

    Gaithersburg, MD
    2 days ago

  • AI Automation Engineer / Developer

    $25k

     ...software and internal tools tailored to how the firm actually works, developed incrementally and improved as our needs grow. • Maintain and...  ...Experience integrating and connecting software systems through APIs and automation tools. • The judgment to work with sensitive,... 
    Permanent employment
    Full time
    Contract work
    Temporary work
    Work at office

    Konare Law

    Frederick, MD
    29 days ago

  • Software Engineer/Systems Integrator

     ...Location: Remote Core Responsibilities & Duties: Design, develop, and implement robust software solutions using JavaScript/...  ...review processes Experience integrating software applications, APIs, databases, and external systems Experience with Docker containerization... 
    Contract work
    Temporary work
    For contractors
    Work at office
    Local area
    Remote work

    OCH Technologies LLC

    Leesburg, VA
    10 days ago