33 web developer jobs at 26 companies in Mastic, NY
1mo
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Java Web Application Developer
Greenwich, Connecticut, United States
HybridFull Time
3+ YOEMaster's in CS or related, 3+ years web application development, knowledge of Oracle/PL/SQL and Java, experience with Spring (Boot/MVC), SPA frameworks (Angular/Vue.js), HTML5/CSS3/TypeScript, Bitbucket/Gerrit, Gradle, UNIX/Linux; familiarity with AI-assisted coding tools.
Oracle, PL/SQL, Java, Spring Framework, Spring Boot, Spring MVC, Angular, Vue.js, HTML5, CSS3, TypeScript, Bitbucket, Gerrit, Gradle, Claude Code, UNIX, Linux
2d
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Advisor, Web Development (P3)
Fairfield or Washington or Lexington or United States
$75k-$103k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent experience and 5+ years relevant experience. Requires HTML5, CSS/SASS, JavaScript, PHP, CMS customization, analytics, version control, troubleshooting, MS Office, and English proficiency.
HTML5, CSS/SASS, JavaScript, PHP, Blackbaud Luminate, Drupal, Adobe Analytics, Adobe Experience Platform, Google Tag Manager, Adobe Target, Git, Microsoft Office
23h
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Sr. Software Engineer Web
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
6+ YOE6–9 years of professional software engineering experience; JavaScript, Node.js, ReactJS, React Native, REST APIs, databases, version control, testing, and software architecture knowledge. Bachelor's degree or equivalent experience.
JavaScript, Node.js, ReactJS, React Native, REST APIs, CI/CD
4w
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Engineer
Stamford, Connecticut, United States
$70k-$75k/yr OnsiteFull Time
6+ YOEBachelor's in Computer Science, 6+ years experience, proficiency in Java/Python/JS/TS, web/backend development, databases, cloud platforms, Kubernetes, and strong communication and problem-solving skills.
Java, Python, JavaScript, TypeScript, Django, Flask, Spring Boot, SQL, NoSQL, MongoDB, Snowflake, AWS, Azure, Kubernetes
1mo
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Middle Office Software Developer
Norwalk or Rowayton
$115k-$200k/yr OnsiteFull Time
5+ YOEBachelor's in computer science, 5+ years software development in financial services, experience with C#, Windows and web frameworks, SQL Server, messaging/SOA/APIs, Agile and unit/integration testing.
C#, Windows Forms, WPF, ASP.NET MVC, Angular, JavaScript, Web API, SQL Server, MOM, SOA, APIs, Agile, Coding agents and AI-assisted development tools
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
3w
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.NET Developer
Deer Park, New York, United States
$115k-$120k/yr RemoteFull Time
4+ YOE4+ years building C#/.NET applications, SQL Server, web framework experience (Blazor/ASP.NET/React), Git/SVN, RabbitMQ preferred, production support experience, AI tool (Claude) usage, clear written communication.
C#, .NET, SQL Server, Blazor, ASP.NET, React, Git, SVN, RabbitMQ, Jira, PagerDuty, Claude
1w
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Backend Software Engineer - Assistant Vice President
Greenwich or New York City
$130k-$170k/yr HybridFull Time
6+ YOEDegree in software engineering,6+ years web application development,experience with Python/Scala/Node.js,knowledge of relational/NoSQL modeling,testing and SSO familiarity.
Scala, Ruby, Node.js, Python, FastAPI, ZIO, Scala Test, ZIO Test, PyTest
3d
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Application Developer – Internal Platform
Glen Cove, New York, United States
$125k-$150k/yr HybridFull Time
4+ YOERequires 4+ years building production web applications, strong C#/.NET and SQL Server experience, MVC knowledge, JavaScript framework familiarity, API design, and third-party platform integration experience.
C#, .NET, SQL Server, MVC, React, Vue, Alpine, Angular, Shopify, Galley, ShipStation, ASP.NET Web Forms, ASP.NET MVC, Razor, Microsoft Entra ID, ERP
3w
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Webmaster & Applications developer (80350)
New Rochelle, New York, United States
OnsiteFull Time
Administer and develop Drupal/Pantheon sites, build and integrate web applications/APIs, maintain web infrastructure (IIS/Apache/Tomcat/ColdFusion/SQL Server), and ensure accessibility and security.
Drupal, Pantheon, Technolutions Slate, CollegeNET 25Live, IIS, Apache, Tomcat, ColdFusion, SQL Server, PeopleSoft, ASP.NET, JavaScript, HTML, CSS, SQL, XML, JSON, Microsoft services
1w
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Full Stack Developer (.NET API) - Senior Software Engineer
Stamford, Connecticut, United States
OnsiteFull Time
6+ YOEBachelor's in computer science or related field, 6+ years full-stack experience with .NET Core API, Angular and SQL Server, strong C#/Web API and front-end (HTML/CSS/JavaScript) skills, REST API experience, communication and leadership abilities.
Angular, .NET Core, SQL Server, C#, Web API, HTML, CSS, JavaScript, Microsoft Azure, Git
3w
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Senior Full-Stack & Platform Engineer (Remote)
Bethpage, New York, United States
$155k-$175k/yr RemoteFull Time
7+ YOE7+ years building and owning production web applications; extensive PostgreSQL experience; strong AWS EC2, Linux, Node.js, TypeScript, Python, API integration, and observability/production ops skills.
PostgreSQL, Supabase, AWS EC2, Linux, Node.js, TypeScript, Python, OpenClaw, Everflow, TrustedForm, IPQS, Google APIs, JavaScript, CI/CD
1d
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Resident Engineer
Grahamsville or Purchase or Kingston or Shokan or Ulster County
$103k-$190k/yr OnsiteFull Time
10+ YOEBachelor's degree in engineering, construction management, or related field; construction engineering experience; professional engineering license; Microsoft Office, estimating, CPM scheduling, and web-based document collaboration software experience.
Microsoft Office, CPM Scheduling Software
1w
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Software Engineer
Westbury, New York, United States
$120k-$135k/yr OnsiteFull Time
5+ YOE5+ years .NET and database experience, Bachelor's in Computer Science or equivalent, strong C#, SQL/Oracle, Web API, front-end scripting, Visual Studio, version control, and communication skills.
Microsoft .Net C#, Microsoft .Net framework, Microsoft .Net Core, WPF, Winforms, Webforms, MVC, Web API, LINQ, ADO.Net, Azure, Java Script, JQuery, Visual Studio, SQL Server, SSMS, SSRS, SSIS, Oracle, SQL Developer, ETL, PVCS, Subversion, TFS, Cobol, EDI
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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Resident Engineer
Purchase or Albany or Woodcliff Lake
FieldFull Time
Bachelor's in engineering or construction management, professional engineer (PE) license for the job location, construction engineering experience, proficiency with Microsoft Office, estimating & CPM scheduling software and web-based collaboration, strong verbal and written communication.
Microsoft Office, Estimating & CPM Scheduling Software, web-based document collaboration software
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
2w
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Engineer - Network Security
Orange, Connecticut, United States
$96k-$121k/yr OnsiteFull Time
2+ YOEBachelor's in CS/IS or equivalent, minimum 2 years network engineering experience, hands-on firewall/SDWAN/secure web gateway/WAF work, incident analysis, and strong troubleshooting skills; security certifications preferred.
SDWAN, Fortinet, FortiGate, Palo Alto Networks, Checkpoint, SIEM, Zscaler, Akamai
2mo
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Sr Manager, Backend Engineering
Stamford or Irving
$116k-$170k/yr HybridFull Time
8+ YOE2+ Mgmt8+ years web application development; Java EE/Spring; cloud platforms (AWS preferred; Azure valued); leadership; scalable backend design.
Java EE, Spring, HTML, XML, JSON, PL/SQL, AWS, Azure
1mo
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Postdoctoral Associate – Rethinking the Anti-Corruption Toolkit: 2026-2027
New Haven or Columbia
OnsiteFull Time, Temporary
Ph.D. completed within last 6 years or expected by Fall 2026; ability to build/manage collaborators, develop a large interdisciplinary database and interactive web platform, produce scholarly and policy-facing outputs, and relocate to Columbia, SC for the appointment.
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