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348 applications development engineer jobs at 176 companies in Fairfield, CT

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Applications Developer
New York City, New York, United States
$98k-$195k/yr HybridFull Time
Marsh McLennan
Marsh McLennanNYSE: MRSH: Global professional services firm providing risk, strategy, and people solutions.
5+ YOEAssociate or bachelor’s degree,5+ years tax software experience (TRCS preferred),EPM development experience,ability to support month/quarter close,strong problem-solving and communication skills.
Oracle TRCS, Oracle EPM, FCCS, Smart View
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Applications Development Technology Lead Analyst
New York City, New York, United States
$184k-$240k/yr HybridFull Time
Citi
CitiNYSE: C: Global diversified financial services holding.
6+ YOEBachelor's in Computer Engineering/Computer Science, 6+ years developing scalable, multithreaded and containerized applications for financial models using Java, Spring Boot, Microservices, Python, SQL, Big Data and CI/CD tools; stakeholder engagement and testing experience required.
Java, Spring Boot, Microservices, Python, SQL, Hive, Sqoop, Impala, HDFS, Spark, JPA, MongoDB, TeamCity, Harness, GitHub, Kubernetes, Bitbucket, JUnit, Power Mockito, Cucumber, Tableau
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Applications Development Technology Lead Analyst
New York City, New York, United States
$184k-$240k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
6+ YOEBachelor's in Computer Science/Engineering, 6+ years developing scalable applications using Java, Spring Boot, Python, SQL and Big Data (Hive/Sqoop/Impala/HDFS/Spark); experience with CI/CD, Kubernetes, JUnit/PowerMockito/Cucumber, Tableau, and stakeholder engagement.
Java, Spring Boot, Microservices, Python, SQL, Hive, Sqoop, Impala, HDFS, Spark, JPA, MongoDB, TeamCity, Harness, GitHub, Kubernetes, Bitbucket, JUnit, PowerMockito, Cucumber, Tableau
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Software Development Engineer, Media Planning Applications
Boulder or New York
$168k-$227k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
5+ YOE5+ years of professional software development, design/architecture leadership, mentoring/tech lead experience; full SDLC with code reviews and operations.
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Senior Web Applications Developer
New York, New York, United States
$120k-$130k/yr HybridFull Time
Haymarket Media
Haymarket Media: Publishes specialized media content and provides professional education services.
5+ YOE5+ years web API and data-centric application experience; strong C#, .Net, microservices, SQL Server, CI/CD, and system design skills; excellent communication and mentoring ability.
C#, .Net Core, .Net 5, REST, Web APIs, AWS, SQL Server, Entity Framework, Telerik, CI/CD, microservices, Git, New Relic, Google Cloud Monitoring, TDD, Swagger, OpenAPI, Playwright, PowerShell, Blazor, Docker
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Manager, Applications Development & Engineering
Seattle or Anchorage or Los Angeles or New York or Portland or San Francisco or Washington
$169k-$220k/yr RemoteFull Time
Davis Wright Tremaine
Davis Wright Tremaine: National law firm providing corporate legal and litigation services.
10+ YOE3+ Mgmt10+ years software delivery experience, 3+ years managerial experience, Bachelor’s in a technical/STEM field required; deep knowledge of DevOps, Agile, cloud architecture, budgeting, portfolio management, and leadership.
DevOps, CI/CD, Agile, cloud architecture
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Senior Applications Engineer, Corporate Systems
Menlo Park or Bellevue or New York or Toronto
$162k-$190k/yr HybridFull Time
Robinhood
RobinhoodNASDAQ: HOOD: Provides a commission-free platform for investing and financial services.
5+ YOE5+ years in Systems/SRE/Infrastructure; hands-on endpoint management (macOS/Windows); familiar with AI-assisted development tools; programming/scripting in Python, Swift, Go, Bash, or PowerShell; improves employee-facing systems.
Okta, Google Cloud, Google Workspace, Python, Swift, Go, Bash, PowerShell, Claude Code, Gemini, macOS, Windows, Automation, Identity management
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Compressed Air System Applications Engineer – Systems Design
West Hartford or Merrimack
$90k/yr FieldFull Time
Environmental Systems Co.
Environmental Systems Co.: A that provides engineering and turnkey solutions to optimize industrial compressed air systems and improve energy efficiency.
Support outside sales by qualifying leads, analyzing compressor-room and plant data, developing energy-efficiency measures, and producing customer-ready presentations.
Microsoft Excel, Microsoft PowerPoint, CADD, CRM
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Compressed Air System Applications Engineer – Systems Design
West Hartford or Merrimack
$90k/yr OnsiteFull Time
Environmental Systems Company
Environmental Systems Company: Provides building automation, energy management, and facility maintenance solutions.
Support outside sales by vetting leads, analyzing compressor-room and plant data, developing efficiency measures, and presenting findings; Excel and presentation skills required.
Microsoft Excel, Microsoft PowerPoint, CADD, CRM
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Webmaster & Applications developer (80350)
New Rochelle, New York, United States
OnsiteFull Time
Iona University
Iona University: Provides undergraduate and graduate education and research opportunities.
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
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Senior Engineer, AI Applications Development
Tampa or New York
HybridFull Time
White & Case
White & Case: Global law firm providing cross-border legal advisory services.
3+ YOEDevelop, integrate, and maintain AI-powered apps using Microsoft AI and cloud tech; Azure OpenAI, Cognitive Services, ML; React, Node.js; Power Platform; DevOps, CI/CD; 3+ years software development.
Azure AI Services, OpenAI, Cognitive Services, Machine Learning, Microsoft Graph API, Python, React, JavaScript, TypeScript, PowerShell, Power Platform, Copilot Studio, Azure Foundry, CI/CD, Infrastructure as Code
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Software Development Engineer
New York, New York, United States
$149k-$215k/yr OnsiteFull Time
Adobe
AdobeNASDAQ: ADBE: Provides software for digital media creation and marketing analytics
Backend and data applications development; Java/Scala; RESTful APIs; SQL and NoSQL databases; distributed systems (Spark, Kafka, Hadoop); cloud (AWS/Azure); CS degree or equivalent experience; strong communication and documentation.
Java, Scala, RESTful APIs, SQL, NoSQL, Apache Spark, Kafka, Hadoop, AWS, Azure
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IT Software Applications Engineer (Hybrid)
Berlin, Connecticut, United States
$99k-$110k/yr HybridFull Time
Eversource Energy
Eversource EnergyNYSE: ES: Delivers electricity, natural gas, and water to New England customers.
3+ YOEBachelor\u0002s degree or equivalent, 3+ years related experience, familiarity with SDLC, cloud/Azure architecture, and programming in Java, React, Ruby on Rails, or .NET; Jenkins and Azure Dev Ops experience.
Java, React, Ruby on Rails, .NET, C++, JScript.NET, Microsoft Azure, Jenkins, Azure Dev Ops
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2mo
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Staff IT Enterprise Applications Software Developer
Secaucus, New Jersey, United States
$105k-$140k/yr OnsiteFull Time
ZT Systems
ZT SystemsNASDAQ: SANM: Manufactures custom server and storage hardware for data centers.
5+ YOE5+ years C#/.NET web development; MVC/MVVM; SQL; web development experience; Visual Studio; SVN or Git; strong communication.
C#, ASP.NET, MVC, MVVM, AngularJS, KnockoutJS, SQL, Visual Studio, Git, SVN, Bootstrap, MaterialDesign, Ionic
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6d
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Software Engineer - Applications
New York City, New York, United States
$144k-$160k/yr HybridFull Time
Astronomer
Astronomer: Managed data orchestration platform powered by Apache Airflow.
0+ YOE0–4 years software engineering experience; familiarity with backend (Go/TypeScript/Python) and frontend (React/TypeScript); REST/GraphQL and Git proficiency; strong communication and testing practices.
Apache Airflow, Astro, React, TypeScript, Golang, Go, Python, REST, GraphQL, Git
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2w
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Enterprise Applications Developer - Finance Systems (Software Developer-PeopleSoft 2) - Provisional
New York City, New York, United States
$114k-$126k/yr HybridFull Time
City University of New York
City University of New York: Public university system providing higher education and research services.
2+ YOEPeopleSoft development experience (min 2 years for some qualification paths), PeopleTools/PeopleCode skills, SQL/Oracle proficiency, English proficiency, and relevant degree or certification options.
Application Designer, Application Engine, SQR, Application Messaging, Component Interfaces, PeopleCode, Crystal Reports, Tumbleweed, Control M, FTP, SQL, Oracle RDBMS, ServiceNow, Data Mover, Process Scheduler, nVision, BI Publisher, PS Query, Integration Broker, ExceltoCI
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Software Engineer - Defense Applications
New York City, New York, United States
$145k-$200k/yr OnsiteFull Time
Palantir
PalantirNasdaq: PLTR: Developing software platforms for data integration and analytics.
2+ YOE2+ years frontend engineering experience, strong JavaScript skills, proficiency with React and modern web technologies, bachelor's degree or equivalent, strong communication, and eligibility/willingness to obtain a U.S. security clearance.
React, Maplibre, Three.js, Redux, Conjure, OSDK, Foundry, AIP, JavaScript
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Staff Full Stack Engineer-Agentic Applications GTM
New York, New York, United States
$137k-$252k/yr OnsiteFull Time
The Trade Desk
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
12+ YOEBS in engineering discipline and 12+ years software engineering experience; 2+ years building production LLM/agentic applications; deep Python and TypeScript/JavaScript fluency; experience with agentic frameworks, API integrations, and technical leadership.
LangGraph, LangChain, CrewAI, AutoGen, Semantic Kernel, Python, TypeScript, JavaScript, REST, GraphQL, Salesforce, Outreach, ZoomInfo, Slack
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Low Latency Java Developer - eTrading Applications
New York, New York, United States
$120k-$150k/yr HybridFull Time
Talan
Talan: Provides international consulting and technology transformation services.
5+ YOE5+ years enterprise Java and trading system experience; bachelor's in CS/Engineering/Math; experience with low-latency, event-driven systems, concurrency, EM architectures; strong communication and critical thinking.
Java 11\u000317, Spring Boot, Spring Boot Actuator, Apache Camel 3, JMS, ActiveMQ, REST APIs, MS SQL Server, Sybase, CI/CD, ION, TradeWeb, Bloomberg
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Senior Software Engineer, Recognition Intelligence Applications
Los Angeles or New York
$150k-$200k/yr OnsiteFull Time
Metropolis
Metropolis: Computer vision technology for checkout-free parking and retail payments.
6+ YOE6+ years software engineering; advanced Scala/Java; distributed systems; microservices; Agile; databases (MySQL/Postgres).
TypeScript, React, Scala, Java, MySQL, PostgreSQL, Snowflake, AWS, Datadog, Git, GitHub, Copilot, Claude Code
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