273 junior developer jobs at 170 companies in Harrington, DE

3mo
Save
Mark Applied
Hide
Junior Software Developer
Annapolis Junction, Maryland, United States
$139k-$179k/yr OnsiteFull Time
Intelliforce
Intelliforce: Provides engineering and technical solutions for the intelligence community.
7+ YOETop Secret clearance with polygraph; US citizenship; 7 years software engineering experience; BS in CS or related field; cloud/big data exposure; experience with data/workflow systems.
Hadoop, Hive, Pig, HDFS, MapReduce, JSON, BSON, HBase, Accumulo
2d
Save
Mark Applied
Hide
Junior Electrical Engineer
Aberdeen Proving Ground, Maryland, United States
$58k-$117k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
Active Top-Secret clearance with ability to obtain TS/SCI, ABET B.S. in electrical/computer engineering, proficiency with schematics, benchtop lab equipment, RF fundamentals, SPI/I2C/UART, and technical report writing.
oscilloscope, spectrum analyzer, signal generator, SPI, I2C, UART
2d
Save
Mark Applied
Hide
Junior Electrical Engineer
Aberdeen Proving Ground, Maryland, United States
$58k-$117k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
ABET B.S. in EE or related, active Top-Secret clearance with ability to obtain TS/SCI, hands-on benchtop experience (oscilloscope, spectrum analyzer, signal generator), RF and protocol (SPI,I2C,UART) familiarity, technical reporting skills.
Oscilloscope, Spectrum Analyzer, Signal Generator, SPI, I2C, UART
1mo
Save
Mark Applied
Hide
API Developer/Programmer
Aberdeen Proving Ground, Maryland, United States
$90k-$150k/yr OnsiteFull Time
SURVICE Engineering
SURVICE Engineering: Engineering services and survivability analysis for defense systems.
2+ YOEBachelor's degree in a technical field and 2+ years experience. Experience with web/API development, MongoDB, PostgreSQL, Microsoft Azure, Keycloak, Java, cloud/containerization, information systems security, and Agile.
MongoDB, PostgreSQL, Microsoft Azure, Keycloak, Java
2w
Save
Mark Applied
Hide
2440AS - Software Engineer I
Aberdeen, Maryland, United States
$75k-$98k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
1+ YOEBachelors in computer science or similar, 1-5 years software programming experience, proficiency in Java/C/C++/Python/JavaScript, experience with backend/microservices/web development, strong communication and documentation skills, current DoW clearance required.
Java, C/C++, Python, JavaScript, Node.js, Vue.js, Windows, Linux, Android, UML
3w
Save
Mark Applied
Hide
Software Developer I
Aberdeen Proving Ground, Maryland, United States
$95k/yr HybridFull Time
Agile Defense
Agile Defense: Provides IT modernization and cybersecurity for federal government agencies.
1+ YOEMust have Interim Secret/Top Secret clearance to start, obtain Security+ (IAT-II) within 90 days, 1+ years Java experience (Core Java 1.7+), and familiarity with JDBC/MySQL, JMS/Artemis/ActiveMQ, ESB and XML technologies. Bachelor's typical; 0-2 years experience.
C, C++, Java, Core Java (1.7+), JDBC, MySQL, JMS, Artemis, Apache ActiveMQ, Enterprise Service Bus, XML, XSD, XSLT, XPATH, Object XML mapping, GitLab, Apache Ant, IZPack, PHP, JavaScript, REST, Web Services, SNMP, Apache HTTP server, Windows IIS, LDAP, Active Directory, Wireshark, Java PCAP libraries, VMWare ESX, Microsoft HyperV
4d
Save
Mark Applied
Hide
Associate Low Code/No Code Developer
Aberdeen Proving Ground, Maryland, United States
$65k-$111k/yr OnsiteFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
1+ YOEBachelor's or equivalent experience,1+ year application development experience with Microsoft Power Platform,active DoD Secret clearance,CompTIA Security+ required,PL-900 within 6 months; Power Apps/Automate/BI experience.
Power Apps, Power Automate, Power BI, Power Platform, Palantir Foundry, Army Vantage, Dataverse, Microsoft 365
1mo
Save
Mark Applied
Hide
Software Engineer 0
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
0+ YOEActive Top Secret clearance with Poly; 0 years experience; Java in UNIX/Linux; Spring; RESTful services; JPA/Hibernate; JavaScript libraries; testing frameworks
Java, UNIX, Linux, Spring, REST, JPA, Hibernate, JQuery, Ext-JS, Dojo, JavaScript, Tomcat, Maven, Spring Security, MongoDB, JMS, Backbone JS, D3, Dimple, Groovy, Spock, Spring Boot, Spring MVC
1d
Save
Mark Applied
Hide
Mechanical Engineer Intern/Co-op Fall 2026
Dublin or Lexington or Cincinnati or Framingham or Arlington or Annapolis
OnsiteFull Time
Legence
LegenceNasdaq: LGN: Engineering and maintenance services for mission-critical building systems.
Pursuing a Bachelor in Mechanical or Architectural Engineering (sophomore/junior preferred); AutoCAD/Revit experience preferred; MS Word/Excel proficiency; able to work full-time onsite and travel locally; no sponsorship.
AutoCAD, Revit, Microsoft Word, Microsoft Excel
1mo
Save
Mark Applied
Hide
Electrical Engineer Intern/Co-op Fall 2026
Cincinnati or Arlington or Prospect or Dublin or Annapolis or Charlotte or Richmond or Columbus
OnsiteFull Time, Internship
Legence
LegenceNASDAQ: LGN: Provides engineering and maintenance services for mission-critical building systems.
Pursuing a bachelor’s in electrical or architectural engineering (sophomore/junior preferred); AutoCAD/Revit experience preferred; proficiency with Microsoft Word and Excel; ability to work full-time onsite in Columbus and travel locally for site inspections.
AutoCAD, Revit, Microsoft Word, Microsoft Excel
1mo
Save
Mark Applied
Hide
Sr Principal Engineer Propulsion
Palm Beach Gardens or Elkton or Ronkonkoma
$129k-$194k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
8+ YOERequires a STEM degree with significant design experience, ability to obtain Secret clearance (US citizenship required), proficiency with Siemens NX, travel up to 25%, and prior experience mentoring junior engineers.
Siemens NX, Siemens Teamcenter United Architecture
2mo
Save
Mark Applied
Hide
Engineer
Berlin, Maryland, United States
OnsiteFull Time, Seasonal
EOS Hospitality
EOS Hospitality: Manages and operates a portfolio of hotels and resorts.
High school diploma; maintenance experience preferred in hospitality; knowledge of electrical, plumbing, HVAC; ability to troubleshoot; strong communication; flexible scheduling; valid driver’s license preferred; ability to lift up to 50 lbs.
4d
Save
Mark Applied
Hide
Engineer
Trenton or Philadelphia or Dover or Annapolis
FieldFull Time
MasTec
MasTecNYSE: MTZ: Provides engineering and construction for energy and communications infrastructure.
Bachelor's in engineering, proficient with AutoCAD/Adobe/Microsoft Office, EIT or PE preferred, gas design experience a plus, able to lift up to 50 lbs.
AutoCAD, Adobe, Microsoft Office
4d
Save
Mark Applied
Hide
Engineer
Trenton or Philadelphia or Dover or Annapolis
FieldFull Time
MasTec
MasTecNew York Stock Exchange: MTZ: Builds and maintains energy, communications, and utility infrastructure.
Bachelor of Science in Engineering, proficient with AutoCAD, Adobe, and Microsoft Office; EIT or PE a plus; gas design experience preferred; able to perform field engineering and lift up to 50 lbs.
AutoCAD, Adobe, Microsoft Office
3w
Save
Mark Applied
Hide
Job Developer
Ridgely, Maryland, United States
$19/hr OnsiteFull Time
Benedictine
Benedictine: A nonprofit providing education, residential, and community-based services for people with intellectual and developmental disabilities on Maryland's Eastern Shore.
2+ YOEHigh school diploma/GED required (Associate preferred); 2+ years working with individuals with intellectual/developmental disabilities; eligible to obtain ACRE and CESP within 1 year; valid driver's license; pass drug screen, CJIS/criminal background check, and CPS clearance; able to perform Safety-Care interventions; strong communication and organ...
3mo
Save
Mark Applied
Hide
Engineer I
Dover or Newark or Georgetown or Doral or Fernandina Beach or Yulee or Winter Haven or Debary or Rockledge
HybridFull Time
Chesapeake Utilities
Chesapeake UtilitiesNYSE: CPK: Provides natural gas, electricity, and propane delivery services.
0+ YOEBachelor's in Engineering; entry-level; valid driver's license; knowledge of design, construction, and operations; MS Office; ability to review plans and permit requirements.
Microsoft Office
3w
Save
Mark Applied
Hide
Chief Engineer
Annapolis, Maryland, United States
$65k-$75k/yr OnsiteFull Time
OTO Development
OTO Development: Develops and operates upscale select-service and lifestyle hotels.
2+ YOE2+ years as a building maintenance tech/engineer (or 4-5 years related), current people management of at least one subordinate, proficiency with hand tools and maintenance tasks, time management, and customer-service focus.
Computerized Maintenance Management System (QUORE)
1mo
Save
Mark Applied
Hide
TALINO Engineer
Magnolia, Delaware, United States
OnsiteFull Time
SUMURI
SUMURI: Manufactures high-performance forensic workstations and develops investigative software.
0+ YOEAssemble computer workstations per build sheets, follow detailed instructions, perform documentation and quality checks, support shipping/receiving, complete state and federal background check; training provided for OS installation and troubleshooting.
2w
Save
Mark Applied
Hide
Civil Engineer – Land Development
Mitchellville or Annapolis or Newark
$75k-$126k/yr OnsiteFull Time
Atwell
Atwell: Provides professional engineering and land development consulting services.
2+ YOEBachelor's in Civil Engineering, 2+ years experience, proficiency with AutoCAD Civil 3D, WaterCAD, StormCAD, SewerCAD; strong written and verbal communication.
AutoCAD Civil 3D, WaterCAD, StormCAD, SewerCAD
4d
Save
Mark Applied
Hide
Business Intelligence Developer
Aberdeen Proving Ground, Maryland, United States
$105k-$125k/yr OnsiteFull Time
Dynamo Technologies: Delivers IT and digital transformation services to federal agencies.
2+ YOE2+ years building BI solutions with Microsoft Power Platform (Power BI, Power Apps), strong SQL, ETL, data modeling, Python/R scripting, troubleshooting, and end-user training.
Microsoft Power Platform, Microsoft Power BI, Microsoft Power BI Service, DAX, Microsoft Power Apps, Python, R, SQL, PostgreSQL, Microsoft SQL Server, HTML, CSS, JavaScript, Microsoft Power BI REST APIs, Microsoft Power Automate, Microsoft Dataverse, Microsoft Power Virtual Agents, Linux, Azure, AWS, Microsoft Office Suite