35 junior software developer jobs at 28 companies in Mastic, NY
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Software Engineer
Greenwich, Connecticut, United States
OnsiteFull Time
2+ YOEBachelor's in CS/Math/Physics required; 2+ years C++ software development experience with OOP, STL, networking, concurrency, Linux/UNIX and shell scripting; strong communication skills.
C++, C, STL, Linux, UNIX, shell scripting
3w
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Software Engineer I
Grand Rapids or Uniondale or Austin or Atlanta
$100k-$150k/yr HybridFull Time
1+ YOE1+ year software engineering experience; strong skills in Python or JavaScript/TypeScript; familiarity with APIs, integrations, automated testing, debugging; comfortable with AI-assisted development (Claude Code preferred); onsite collaboration required.
Python, JavaScript, TypeScript, Claude Code
2mo
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Quantum Software Engineer II
New Haven, Connecticut, United States
$103k-$154k/yr HybridFull Time
2+ YOEBachelor's in CS/ECE/math/physics/chemistry required; 2+ years Python software development; experience with debugging/profiling, version control, software testing, and quantum APIs (Qiskit, Q#, CUDA-Q, Cirq).
Python, Qiskit, Q#, CUDA-Q, Cirq
4d
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Full Stack Software Engineer (Python)
Irving or Stamford
$74k-$116k/yr HybridFull Time
2+ YOEBachelor's in Computer Science or related,2+ years full-stack software development, strong Python knowledge, experience with Django/Flask, HTML/CSS/JavaScript/jQuery, relational SQL databases, and AWS or ReactJs.
Python, Django, Flask, HTML, CSS, JavaScript, jQuery, AWS, ReactJs, SQLServer, MySQL, PostgreSQL, HTTP, SOAP, REST, XML, JSON
2mo
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Software Engineer
New York City or Old Greenwich
OnsiteFull Time
0+ YOEStrong programming skills, SQL, and knowledge of one or more of C#, JavaScript, or TypeScript; Python helpful; experience with APIs, CI/CD, and AI tooling; strong problem-solving and ownership.
SQL, C#, JavaScript, TypeScript, Python, React, Angular, CI/CD
3mo
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AI Software Developer
Westport, Connecticut, United States
$25-$75/hr OnsiteContract
Experience building complex, data-sensitive apps and programs using AI; able to build applications and IT infrastructure.
1mo
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Associate, Front Office Software Engineer
Stamford or Houston
OnsiteFull Time
2+ YOEBachelor's or Master's in CS/STEM, 2+ years software engineering experience, strong CS fundamentals, backend Python proficiency, front-end experience (React/Angular/TypeScript) preferred, cloud (AWS) and data warehousing (Snowflake) familiarity, Linux and CI/CD experience, strong communication.
Python, React, Angular, TypeScript, AWS, Snowflake, Linux/Unix, CI/CD
3mo
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Junior AI Engineer
Lawrence, New York, United States
$85k-$110k/yr OnsiteFull Time
2+ YOE1–2 years in tech; strong interest in AI; growth mindset; startup energy; authorized to work in the US; able to work EST hours.
1mo
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Engineer
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
2+ YOE2–5 years software engineering experience; proficiency with JavaScript, Node.js, ReactJS, and React Native; knowledge of REST APIs, databases, OOP, and version control; strong problem-solving and collaboration skills; bachelor's degree or equivalent.
JavaScript, Node.js, ReactJS, React Native, REST APIs, CI/CD
1w
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Software Engineering Intern – Summer 2027
Fridley or Tempe or Eatontown or Santa Rosa or Lafayette or Boulder or Plymouth or Mounds View or Irvine or North Haven or Memphis or Newton or Dexter or Santa Ana or Mansfield or Fort Worth or Minneapolis or Brooklyn Center or Jacksonville or Boston or Brooklyn Park
$27-$45/hr OnsiteFull Time
Currently pursuing BS/MS in computer/software engineering or related with anticipated graduation 2027–2029; full-time internship availability June–Aug; U.S. work authorization required; 3.0 GPA preferred; experience with programming/projects preferred.
C, C++, C#/.NET, SQL, JavaScript, Java, Python, Swift, HTML/CSS, Microsoft Visual Studio, Jenkins, GitLab
2w
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C# .NET Developer
East Haven, Connecticut, United States
OnsiteFull Time
2+ YOE.NET Framework/.NET Core and C# experience, Blazor, SQL Server (2016+), REST/SOAP, Visual Studio, Git, HTML/CSS/JavaScript, web API development, Agile experience.
.NET Framework, .NET Core, Blazor, C#, SQL Server 2016, ASP.NET, ADO.NET, REST, SOAP, Visual Studio, Git, HTML, CSS, JavaScript, JSON, AJAX, Wrike, Jira, bash, PowerShell, cmd
2mo
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Risk, Compliance, and Legal Engineering - Analyst/Associate
Greenwich, Connecticut, United States
$125k-$155k/yr OnsiteFull Time
2+ YOEBS in CS/Engineering or related; 2+ years programming experience (Python, SQL, JavaScript, and/or .NET); experience with APIs, web app development, cloud, data visualization (Tableau), and strong analytical and communication skills.
Python, SQL, JavaScript, .NET, Angular, CSS, Tableau, AWS, RESTful services, microservices, APIs
5d
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Guidewire Developer, Senior Associate
Chicago or Stamford or Atlanta or Charlotte or Austin or Washington or Columbus or Dallas or Los Angeles or Milwaukee or Denver or Boston or New York or Florham Park or San Francisco or Silicon Valley or Philadelphia or Phoenix or Pittsburgh or Hartford
$77k-$202k/yr OnsiteFull Time
2+ YOEBachelor's degree, minimum 2 years experience, Guidewire platform knowledge, Object Oriented Programming, API integration experience, certifications (Guidewire,Scrum Master) preferred, up to 60% travel.
Guidewire PolicyCenter, Guidewire BillingCenter, Guidewire ClaimCenter, GOSU, PCF, Guidewire Integration Framework, Spring Boot, Rest Client API, SOAP APIs
1w
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AI Engineer Intern
Islandia, New York, United States
OnsiteFull Time, Internship
Pursuing or graduated in CS/Software/IT/Data Science/AI; proficiency in Python, JavaScript, HTML, CSS, Git; knowledge of web architecture, OOP, debugging, and AI concepts.
Python, JavaScript, HTML, CSS, Git, REST APIs, Large Language Models (LLMs), Azure AI Services, Azure, AWS, Google Cloud
1mo
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Environmental Engineer
Shelton or Boston or Chelmsford
$79k-$116k/yr OnsiteFull Time
1+ YOEBachelor's degree in environmental/chemical/civil engineering, EIT certification, 1+ years post-education experience, Phase I ESA and sampling experience, knowledge of EHS regulations, technical writing and analytical software proficiency, ability to travel and work flexible schedules.
2mo
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Field Electrical Engineer I
Shelton, Connecticut, United States
OnsiteFull Time
2+ YOEBachelor’s degree in Electrical Engineering or related field; 2+ years in electrical engineering; PLC and software skills plus CAD/PWB experience; travel up to 40%.
PLC, C, C++, SolidWorks Electrical, AutoCAD, Altium, HMI
1w
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Client Services Onsite Support Engineer
Roslyn, New York, United States
$65k-$80k/yr OnsiteFull Time
2+ YOE2+ years helpdesk or desktop support experience; strong customer service; troubleshooting hardware/software/networking; documentation and escalation; familiarity with workstations, peripherals, and business applications.
1mo
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Foundation Proto Operations Engineer - 3rd Shift
Wilton, Connecticut, United States
HybridFull Time
2+ YOEBS in a technical field with 2+ years relevant experience; Master's preferred. Experience operating and troubleshooting test rigs, integration and verification, and ability to work unsupervised. Software engineering is a plus.
3d
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Information Technology Specialist (Senior Contact Center Developer )
Fresno or Washington or Jacksonville or Chamblee or Chamblee or Fairview Heights or Covington or Lanham or Detroit or Kansas City or Saint Louis or Holtsville or Philadelphia or Guaynabo or San Juan or Memphis or Austin or Austin or Farmers Branch or Ogden or Kearneysville
$106k-$163k/yr OnsiteFull Time
1+ YOERequires one year of GS-12-equivalent specialized IT experience in systems, applications, integration, cybersecurity, requirements analysis, contact center solutions, software development, troubleshooting, and technical documentation.
software, hardware, applications, interfaces, scripts, contact center applications, IVR, USA Hire, USAJOBS, USA STAFFING, Microsoft Word, Microsoft Excel
2mo
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Systems Engineer, Embedded Solutions (New Haven, CT, US, 06511)
New Haven or Berlin
OnsiteFull Time
Hands-on, broadly skilled systems engineer with cross-domain experience in hardware, firmware, and software; travels to customer sites; strong collaboration and communication.
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