Backend Developer jobs in Connecticut

Java Backend Developer / IT Software Engineer 5

Remote

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Today

3Core Systems, Inc is an SAP and Success Factors Partner with employees located across the United States. Our organization is dedicated to customer and employee satisfaction. We provide High Quality, Cost efficient and Competitive Solutions and Resources. 3Core Systems is looking for a Java Backend Developer for one of our clients in Oklahoma City, Ok "US and those authorized to work in the US are encouraged to apply. We are unable to sponsor visas at this time" Role: IT Software Engineer 5 / Ja

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Contract, Third Party

$70 - $75

Java Backend Developer

Remote

•

Today

Hello All, Greetings from Rootshell Inc. Rootshell Enterprise Technologies Inc. is a recognized provider of professional IT Consulting services in the US. We are actively seeking Java Backend Developerfor one of our client, Please share your resume with current location & full contact info Role:Java Backend Developer Location:Remote Job Summary Job Summary We are seeking a skilled Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. T

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Full-time, Third Party

Depends on Experience

Backend/API Developer

Remote

•

Today

Job Title: Backend/API Developer Location: Remote FTE Job Summary: We are seeking a highly skilled Backend/API Developer with over 15 years of experience to join our dynamic team in Austin, Texas. The ideal candidate will have extensive experience in developing REST APIs, utilizing OpenAI/Swagger specifications, and working with .NET Core. This role requires a deep understanding of API management and a passion for building scalable and efficient backend systems. Responsibilities: Years of Expe

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Full-time

Depends on Experience

API Backend Developer

Remote

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6d ago

Job DescriptionWe are looking for an experienced API Developer / API Engineer with strong expertise in API design, API security, and Python development. The ideal candidate will design, develop, secure, and maintain scalable RESTful APIs and integrations for enterprise applications.Key ResponsibilitiesDesign and develop scalable REST APIs and backend services.Develop APIs using Python and frameworks such as FastAPI, Flask, or Django.Define API standards, architecture, request/response structures

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Contract

30 - 40

Senior Backend/ Integration Developer

Remote

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3d ago

Senior Backend / Integration Developer Enterprise Integration & API Development Position Overview We are looking for a Senior Backend / Integration Developer to design and implement backend integration services connecting enterprise and warehouse systems. This is a hands-on senior engineering role requiring strong experience with backend APIs, enterprise system integration, SOAP/WSDL services, data transformation and mapping, error handling, observability, and integration testing. The developer

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Full-time

55 - 60

Java Backend Developer with SQL and Strong AI

Remote

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28d ago

Role: Java Backend Developer With SQL and Strong AI Location: Remote Duration: Long-term Industry: HR and Payroll Solutions Need to take an self assessment test before the Zoom video technical screening call. Someone with intermediate - senior skills (not junior, not a lead)Experience/established history of delivering Java/SQL solutions in a large environmentHigh confidence hire because the hiring manager is not pleased with the current engineerWill do assessments before zoom Tech Stack Java w

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Contract

Depends on Experience

Java Backend Developer (Kafka, Cassandra Expert) || Remote

Remote

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18d ago

Job Role- Java Backend Developer (Kafka, Cassandra Expert) Location- Remote Hiring Mode- Full-time Job Description-10 years of experience in Java, core java and advance java concepts and technologies. Software development experience. Hands on experience in Kafka Connect and Kafka messaging event streams. Must have experience in Java (Spring Boot), Microservices. Experience in Writing Junit Test cases Experience in Cloud platform like PCF, AWS. No SQL DB for eg: Cassandra. MongoDB and a

Full-time, Third Party

$120 - $130

Junior Java Backend Developer (1-6 Years)

Remote

•

Today

Job Description: Key Responsibilities Develop and maintain backend services and RESTful APIs using Java.Write clean, scalable, and efficient code following coding standards.Participate in application design, development, testing, and deployment.Debug, troubleshoot, and resolve application issues.Work with databases to design queries, procedures, and data models.Assist in code reviews and implement feedback from senior developers.Create and maintain technical documentation.Support application per

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Full-time

Depends on Experience

Java Backend Developer/Technical Lead -Jersey City, NJ (Remote)

Remote

•

Today

Role Overview The Technical Lead will be a hands-on Engineer who will also own architecture, integration design, engineering standards, code quality, and technical delivery for a Java/Spring Boot microservice supporting the Debt Management System platform. Key Responsibilities Lead technical design for Java/Spring Boot microservices, REST APIs, event-driven workflows, and service integrations. Guide code quality, pull request reviews, testing standards, and engineering best practices. Own int

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Contract, Third Party

Depends on Experience

Java Developer (Backend)

Remote

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6d ago

Job Title: Java Developer (Backend) Location:Remote/WFH and only the first week onsite at the nearest client office. Duration: 3+ months contract with extensions Position Summary: Seeking a strong Java Backend Developer with 69 years of experience building enterprise applications. The ideal candidate has deep expertise in Core Java, Spring Boot, REST APIs, design patterns, microservices, and distributed systems. Key Responsibilities: Design, develop, and maintain scalable Java b

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Contract, Third Party

Depends on Experience

Senior Java Back End Developer (Google Cloud Platform) - Remote/Hybrid

Remote or Columbus, Ohio

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Today

Genesis10 is currently seeking a Senior Java Back End Developer (Google Cloud Platform) for a contract position with a Regional Financial Institution located in Columbus, OH. This is a 6+ month contract opportunity. This role can work remotely or can be a hybrid role from Columbus, OH. Compensation: $70.00 - $80.00 per hour, W2, based on qualifications Position Overview: This role involves designing, developing, and supporting enterprise-grade APIs and cloud-native applications hosted on Google

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Full-time

USD 70.00 - 80.00 per hour

Senior Backend Software Developer

Remote or Maumee, Ohio

•

Today

Job Summary: The Senior Back-End Software Developer will be responsible for designing and developing scalable, secure, and high-performance back-end web-based applications and services, including maintenance, testing, and debugging. In addition to development, this individual will collaborate with a team of developers and occasionally assist junior developers in all facets of software development. Job Goals: Contribute to all stages of the software development lifecycle, from feasibility, soluti

Full-time

Compensation information provided in the description

Backend (.NET) Developer

Remote

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14d ago

Backend(.NET)Developer Remote AsaBackendDeveloper,youwillhaveadeepunderstandingofbackendtechnologies,particularly.NETandSQLServer,andhaveapassionforcreatingefficient,scalable,andsecureserver-sideapplications. Responsibilities: Design,develop,andmaintainrobustRESTfulAPIsusing.NETCore/.NET5+ Collaboratewithfrontenddeveloperstoensureseamlessintegrationofbackendservices Designandimplementefficient,scalabledatabasesolutionsusingSQLDatabases Mentorjuniordevelopersandconductcodereviews Optimizeappli

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Full-time

Depends on Experience

Senior Backend Developer (AI, Python)

Remote

•

Today

Project description We are looking for a Backend Developer to join a team building scalable, cloud-native services for a major US insurance provider. You will design and deliver high-performance Python APIs on Microsoft Azure, own services end to end from development through deployment on AKS, and make sure they are well monitored, observable and reliable in production. The platform also exposes enterprise capabilities to AI agents through MCP servers, so you will work at the intersection of cla

Full-time

Java Backend Developer

Remote

•

Today

We are looking for strong Java back-end developers as we move forward in the project in JAVA tech stack involving Restful Webservices and Soap Webservices. The project revolves around a lot of data coming from various sources, so strong SQL knowledge and interpretation of complex SQL queries is a must. Mandatory skills: Must have strong, hands on experience on: Strong hands-on understanding of Java 8 Hands-on experience on micro-services and webservices development (both SOAP and REST) Hands on

Full-time

USD 55.00 - 65.00 per hour

Scala Backend Developer

Remote

•

Today

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: BI Full 6C (T4) Job Family: Software Engineering Job Qualifications: Skills: Back-End Development, Java (Programming Language), Scala (Programming Language) Certifications: None Experience: 10 + years of related experience ship Required: No Job Description: Transform technology into opportunity as a Scala Back-End Developer at GDIT. Shape wha

Full-time

USD 120,700.00 - 163,300.00 per year

Backend Software Developer (Telework) (BT-2)

Remote or Annapolis, Maryland

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Today

Legato, LLC recruiters () would love to speak with you regarding the following position: Backend Software Developer (Telework) in Annapolis Junction, MD. Security Clearance Required: TS/SCI w/ Polygraph Salary Range: $190,000-$225,000, depending on experience. *This position has up to 16 hours of telework weekly* What You Will Do: The Backend Software Developer will design, develop, test, and maintain mission-critical software applications. Working as part of an Agile development team, the suc

Full-time

USD 190,000.00 per year

AI Backend Engineer, Artificial Intelligence (AI) Required, Work From Home - G

Remote

•

Yesterday

AI Backend Engineer, Artificial Intelligence (AI) Required, Work From Home We are looking for talented AI Backend Engineers to build systems that power AI-driven decisioning, automation, and orchestration across our platform. This role sits at the core of our AI stack, between models, backend systems, and real users, where latency, correctness, reliability, and cost directly impact production experience. This is a fully remote position where you will be part of a global engineering team workin

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Full-time

$140,000 - $200,000

Backend Software Engineer - Python & Pipeline Orchestration (Cloud / AI Platform)

Remote

•

Today

Backend Software Engineer - Python & Pipeline Orchestration (Cloud / AI Platform) W2 Contract Pay Rate: $60 - $70 per hour Location: Cupertino, CA - Remote Role Job Summary: We are seeking a highly skilled Backend Software Engineer to join our platform engineering team focused on building scalable data and machine learning pipeline orchestration services within our internal cloud ecosystem. This role sits at the intersection of backend engineering, data platforms, and infrastructure, enabli

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Contract

$60 - $70 per hour

Senior Dot Net Developer with Azure

Remote

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11d ago

Job Title: Senior Dot Net Developer Location: Remote(USA) Experience: 10+ Years Description: Senior .NET Backend Developer (Azure Cloud)Job SummaryPW Business is seeking a Senior .NET Backend Developer with Azure Cloud experience to join a core development team. The ideal candidate will have a minimum of 8 years of hands-on experience developing enterprise applications using Microsoft .NET technologies and modern cloud platforms. This role requires strong backend development expertise, experien

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Contract

40 - 50

Backend Developer jobs in Connecticut, USA