Mid-Level Backend Software Engineer
System One
Job DescriptionJob DescriptionJob Title: Mid-Level Backend Software Engineer-TS/SCI Location: Gaithersburg, MD Type: Contract To Hire Compensation: Work Model: Onsite Hours: 40.0 Security Clearance: Top Secret/SCIOverview Active TS/SCI Security Clearance required with the ability to successfully pass a PolygraphResponsibilitiesDesign, develop, test, and maintain backend application components using Java or PythonDevelop and maintain RESTful services to support application functionality and system integrationsApply object-oriented design principles to build scalable and maintainable systemsWrite and modify SQL queries to support application functionality and data retrievalCollaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systemsDevelop and troubleshoot applications within Linux-based environmentsImplement backend logic for data transformation, processing, and system workflowsIdentify, debug, and resolve application-level defects and performance issuesFollow coding standards, participate in code reviews, and support documentation efforts Requirements Bachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master’s degree with 2–6 years of experienceUS CitizenshipActive TS/SCI with the ability to successfully pass a PolygraphProfessional experience developing object-oriented applications in Java or PythonHands-on experience building and maintaining RESTful APIsBasic to moderate experience with SQL capability, including writing queries and working with relational databasesWorking knowledge of Linux-based environmentsAbility to work independently on defined tasks within established technical frameworks and deliver reliable resultsSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.#M1 #LI-VR1 Ref: #856-Baltimore-S1
$100k - $130k
...Job Description Job Description Mid-Level Backend Software Engineer Location: Gaithersburg, MD Required Clearance: Active TS/SCI with the Ability to Successfully Complete a Polygraph Employment Type: Full-Time Regular Shift: Day Travel: No Relocation...SuggestedFull timeRelocation packageShift work$87.1k - $157.45k
...ve been building your skills in backend development, object‑oriented programming, and mission‑driven engineering, and you’re ready for work that... ...mission with visibility at senior levels, you’ll thrive here.We’re hiring a Backend Software Engineer to support a high‑...SuggestedFull time- Software Guidance & Assistance, Inc., (SGA), is searching for a FS Mid-Level Developer - Front End for a CONTRACT assignment with one... ...also developing the scalable backend services that power... ...of a collaborative software engineering effort. This role centers...SuggestedContract workWork at office
$155k - $180k
...Embedded Alliance is seeking a mid-level UI/UX Developer to design... ...you will bridge design and engineering to turn complex workflows into... ...while working closely with backend engineers, product owners,... ...degree in Computer Science, Software Engineering, or related field...SuggestedContract work$87.1k - $157.45k
...mission operators have reliable, secure software they can depend on to make critical... ...seeking a detail-oriented, mission-focused Mid-Level Test Engineer to support the Chinook program for an... ...performing SQL queries to validate backend data, troubleshoot defects, and verify...SuggestedFull time$87.1k - $157.45k
Are you ready to build software that makes a real-world impact? Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence... ...user interfaces to building scalable backend services and integrating secure, cloud...Full timeContract work$87.1k - $157.45k
...Intelligence Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security... ...National Solutions Business Area, is currently seeking a Mid-Level DevSecOps Engineer on the Maru Program. The successful candidate will play a...Full timeContract workShift work- ...Precise Software Solutions, Inc. is supporting the U.S. Food and Drug Administration (... ...motivated and detail-oriented Junior to Mid-Level Software Developer to join our agile development... ..., Information Technology, Software Engineering, a related field, or equivalent...Contract workTemporary workInternshipFlexible hours
- ...Title : Mid-Level Fullstack Software Engineer Location : DMV Area Target Start Date : ASAP Type : contract Pay Rate: DOE... .... The role combines front-end development with scalable backend engineering, including intelligent document ingestion, extraction...Contract workImmediate start
$65 - $67 per hour
...Description Job Description Position Title: Mid-Level Full Stack Developer Location:... ...platform Develop and support backend services and APIs powering portfolio modeling... ...translate financial concepts into scalable software solutions Maintain high-quality, well...Contract workLocal areaRelocationMonday to Friday- ...Futrend offers competitive compensation and a comprehensive benefits package. Position Overview We are seeking a Mid-Level Full Stack Software Engineer Javascript Developer to support a high-visibility federal client. The ideal candidate is a versatile and...Full time
- ...Job Description Job Description Software Guidance & Assistance, Inc., (SGA), is searching for a Mid Level Software Engineer for a CONTRACT assignment with one of our premier Regulatory clients in the DMV area. Role Overview: ~ Architects and builds full...Contract work
- Eliassen Group is seeking a Mid-Level Application Release Support Engineer (Temp to Perm) to perform server installation, configuration, and troubleshooting... ...Python or Perl. Responsibilities include maintaining software applications and overseeing project components to...Permanent employmentTemporary work
$72.7k - $149.2k
Job Title: C++ Mid-Level SW DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum... ..., experienced mid level C++ full software cycle developer to support NSWC... ...opportunity to work with other developers and engineers in an effort to support the ongoing projects...Contract workWork experience placementRemote workFlexible hours- Mid-Level Application Release Support Engineer (Temp to Perm) The main function of a Systems Engineer is to perform a wide variety of installation, configuration... ...and upgrading of servers and related hardware and software in a LAN, WAN and stand‑alone environment, providing...Permanent employmentTemporary work
- ...Description: Hybrid 3 days onsite / 2 days remote in Rockville, MD Our client seeks a mid to senior full-stack developer to deliver enterprise-grade financial technology solutions with strong code quality and reliability. The role involves Node.js and Angular development...Hourly payLocal areaRemote work
$69.55k - $125.73k
...widely used platform by enhancing backend modules, improving system... .... At Leidos, we empower our engineers to do meaningful work while continually... .... Own and deliver backend software solutions in Java SE ,... ...Must be willing to earn an IAT Level I (or higher) certification...- ...C++)Black Canyon Consulting (BCC) is actively looking for a mid-level Full Stack Developer (C++) to support our work for the National... ...according to will join NCBI's team of web developers and software engineers to build robust, flexible web applications, APIs, and...Full timeWork at officeRemote workFlexible hours
- ...and business stakeholders, translate high-level requirements into detailed designs, and... ...’s Degree in Computer Science, Computer Engineering, Information Technology, or related... ...environment. ABOUT US Precise Software Solutions, Inc. is a mission-focused technology...Temporary workLocal areaRemote workFlexible hours
- ...service and technology focused organization, please apply today! Overview Black Canyon Consulting (BCC) is searching for a Mid‑Level Software Developer with C++ and JavaScript to support the National Center for Biotechnology Information (NCBI). This is a full‑time onsite...Full timeWork experience placement
- Description: Hybrid 3 days onsite / 2 days remote in Rockville, MD Our client seeks a mid to senior full-stack developer to deliver enterprise-grade financial technology solutions with strong code quality and reliability. The role involves Node.js and Angular development...Remote work
- ...technology solutions, specializing in systems integration, full-stack software development, cybersecurity, project management, and... ...exceptional value to our clients.Position SummaryWe are recruiting a mid-level Python/Django developer for the National Library of Medicine (...Full timeFor contractorsShift work3 days per week
- ...Job Description Job Description Software Guidance & Assistance, Inc., (SGA), is searching for a Mid-Level Software Engineer for a CONTRACT assignment with one of our premier Regulatory clients in the DMV area. This position is part of the Enterprise Services...Contract work
$87.1k - $157.45k
...mission-critical systems. As a Front-End Software Engineer supporting a premier Intelligence... ...currently seeking a skilled and experienced Mid-Level Front-End Software Engineer for the... ...workflows. You will work closely with backend engineers, product owners, and end users...Full timeContract work- ...Inc. is growing at a steady pace specializing in the fields of Software Development, Software Consultancy and Information Technology... ...guidelines.SummaryType: ContractFunction: Information TechnologyExperience level: Mid-Senior LevelIndustry: Information Technology And Services
$87.1k - $157.45k
Leidos is seeking AI Software Developers (Jr, Mid, Senior levels). Applicants of any level may apply to this position and will be evaluated based on the... ...capabilities. We are building with an AI-first engineering mindset, embracing emerging AI capabilities and modern...Full timeRemote workWork from home- Noetic Strategies, Inc. seeks a Mid-Level UI/UX Developer to design and implement user-centric interfaces for mission-critical... ...applications. You will bridge UX design with front-end engineering, collaborating with backend teams and stakeholders in an Agile, DevSecOps...
- Precise Software Solutions, Inc. is seeking a motivated Junior to Mid-Level Software Developer to join our agile development team supporting FDA administrative applications and data management. You will contribute to design, development, testing, and maintenance in a federal...
- ...Lentech, Inc. in Linthicum, MD seeks an Application Engineer (Backend) to develop, test, deploy, and sustain Python-based REST endpoints and... ...Flask, MongoDB/MariaDB experience. Desired: cloud, Jira, Confluence, Git. Education spans various degree levels. #J-18808-Ljbffr
- ...Summary Noetic is seeking a skilled Mid-Level UI/UX Developer to support the... ...The Maru Program delivers modern software solutions across the customer's enterprise... ...experience design and front-end engineering, working closely with backend developers, product owners,...Contract work
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