Senior Backend Developer jobs

San Antonio, Texas

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Today

Description & Requirements The Senior Backend Developer provides subject matter proficiency for our USAF mission. This role is responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements. Shall perform engineering tasks for back-end design and development efforts including, but not limited to, developing back-end architectures to support current and new system capabilities and integrations, RESTful API development and modificati

Full-time

USD 135,000.00 per year

Senior Backend Developer - Kotlin/Java/SaaS

Boston, Massachusetts

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Today

Job Description A global insurance company in Boston is hiring a Backend Software Engineer to help build and scale the technology by powering its digital insurance platform. In this position, you'll be developing backend systems, APIs, and product features, all while working closely with frontend developers and other teams. In this role, you'll be a part of a small team in shaping the core internal systems that are essential to the company's software engineering environment. You'll also take ow

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Full-time

$180000 - $210000

Sr. Backend Developer (GoLang/Java/Python)

Sunnyvale, California

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9d ago

Overview: Seeking an experienced Backend Engineer focusing on building high-performance API based backend platform and highly reliable foundational data services. Key Responsibilities: API Development & IntegrationDesign and implement RESTful APIs for data access and system integrationBuild robust API gateways, service mesh architectures, authentication, authorization for API services Cloud-Native DevelopmentDeploy and manage applications on AWS, Google Cloud Platform and hybrid cloud platforms

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Full-time

$100,000 - $140,000

Senior Backend Developer, Data Platform

Reston, Virginia

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Today

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. This position requires a

Full-time

Senior Back-End Developer

Irving, Texas

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17d ago

Senior Back-End Developer- New York, NY - Contract - W2/C2C - $61-71 Per HRDescription This role involves designing and supporting scalable, secure, and resilient platforms for critical business applications. The position is based in New York, NY, and requires onsite presence. It is a contract role with opportunities to work on cloud architecture and software development, using a variety of modern technology stacks. Key Responsibilities Develop production-quality services and APIs with modern en

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Third Party, Contract

$61 - $71

Senior Backend developer

Hybrid in Raleigh, North Carolina

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3d ago

Title : Senior Backend DeveloperContractDuration : 4-6 months of contractLocations : NJ, San Antonio and Dallas, TX and Raleigh, NCWe are seeking an experienced Senior Backend Developer with 8-10 years of expertise in Java, Spring Boot, and Microservices architecture. The ideal candidate will design, develop, and maintain scalable backend applications and cloud-native solutions while collaborating with cross-functional teams to deliver high-quality software. Experience with AWS and Camunda BPM i

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Contract

Depends on Experience

Senior Backend Developer, Data Platform (TS/SCI with CI Poly)

Reston, Virginia

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Today

Full-time

Senior Backend Developer Node.js /Technical Lead Fulltime role

Hybrid in Atlanta, Georgia

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2d ago

Role: Backend Developer Node.js / Node-RED/Technical Lead Location: Atlanta,GA Duration: Fulltime About the Role We are looking for experienced Senior Backend Developers to join our team and contribute to the development of industrial and logistics software solutions in a highly technical environment. The role is primarily focused on backend development using Node.js and Node-RED, with strong interaction with REST APIs, PostgreSQL databases, and industrial communication protocols. You will work

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Full-time

Depends on Experience

Sr. Backend Developer - C#/.Net - Fremont, CA - NEED LOCAL

Fremont, California

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15d ago

Position Description The Senior Software Engineer will focus on developing new solutions for Accounting Engine application.He/She will be joining other team members that provides support to any Accounting Engine production issue.He/She will be joining daily scrum meetings with global Accounting Engine team.He/She will collaborate with other development teams to discuss the end to end solution.Responsibilities He/She will be responsible for helping to maintain and develop Accounting Engine integr

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Contract

Senior Backend Developer (AI, Python)- Remote - Contract

Remote

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3d ago

Title : Senior Backend Developer (AI, Python) Remote Job Type: Contract Project description We are seeking a hands-on GenAI Engineer to join a team developing production-grade, AI-powered solutions for a major US insurance provider. Designed and developed an enterprise-grade Generative AI platform using Python, FastAPI, and FastMCP to automate recruitment workflows and provide intelligent candidate insights. Built scalable, production-ready APIs that integrated with OpenAI GPT and Anthro

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Contract, Third Party

$60 - $65

Senior Java Backend Developer

San Francisco, California

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25d ago

Only W2 profile Location: San Francisco-Bay Area (Onsite) We are seeking an experienced Senior Java Backend Engineer with 10+ years of hands-on experience in Java development and a strong background in retail or eCommerce environments. The ideal candidate will have strong expertise in Java, Spring Boot, microservices, REST APIs, relational databases, and enterprise backend application development. The candidate will be responsible for designing, developing, and maintaining highly scalable, rel

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Contract

Depends on Experience

Senior Backend Developer (AI, Python)

Remote

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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

Senior Back-end Developer

McLean, Virginia

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Today

Overview We are seeking an experienced Senior Java Backend Developer to design, develop, test, and maintain scalable enterprise applications and backend services. The successful candidate will have strong hands-on experience with Core Java, Spring, Spring Boot, Spring Data JPA, and RESTful API development. The Developer will work across the full application lifecycle, developing reliable backend solutions, integrating with relational and non-relational databases, implementing automated testing

Full-time

Senior Back-End Developer

Chantilly, Virginia

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Today

Overview We are seeking a Java Backend Software Engineer to join a team of developers and cloud engineers responsible for enhancing legacy Public Key Infrastructure (PKI) systems and developing new solutions to support evolving mission requirements. The successful candidate will develop scalable backend applications, integrate systems through APIs, and support the design and implementation of PKI solutions across multiple networks. The team operates within an Agile Scrum framework, delivering

Full-time

Sr Backend Software Developer

Denver, Colorado

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Today

Job Title: Sr Backend Software Developer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US Anticipated Posting End: 11/28/2026 The Opportunity: CACI is seeking a Senior Backend Software Developer for the GEOINT Tradecraft Suite (GTS), a mission-critical platform delivering advanced geospatial intelligence capabilities to national security

Full-time

USD 108,400.00 - 227,500.00 per year

Senior Java Backend Developer

Phoenix, Arizona

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Today

Benefits: ONSITE Competitive salary Opportunity for advancement Senior Java Backend Developer - Digital Banking Location: Phoenix, AZ Work Arrangement: Day 1 Onsite - Minimum 3 Days/Week Experience: 8+ Years Important : This is a Day 1 Onsite position in Phoenix, AZ. Candidates must be available to work onsite a minimum of 3 days per week. We are seeking a Senior Backend Software Engineer with strong hands-on experience in Java, Spring Boot, Microservices, Distributed Systems, Kafka, and

Full-time

USD 120,000.00 - 130,000.00 per year

Senior Java Developer - Backend & Data Specialist

Tampa, Florida

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Yesterday

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Are you a Java virtuoso who sees code as a craft? Do you thrive on transforming complex data into powerful, elegant backend solutions? We're looking for a Senior Java Developer to join our elite techn

Full-time

USD 96,960.00 - 145,440.00 per year

Senior .Net Developer(Backend Developer) - Fremont CA

Fremont, California

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21d ago

Position:Sr. Backend Developer - C#/.Net Location:Fremont, CA Duration: 6+ Months Contract Position Description The Senior Software Engineer will focus on developing new solutions for Accounting Engine application. He/She will be joining other team members that provides support to any Accounting Engine production issue. He/She will be joining daily scrum meetings with global Accounting Engine team. He/She will collaborate with other development teams to discuss the end to end solution. Resp

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Full-time, Third Party

Depends on Experience

Senior Python Backend Developer

Weehawken Township, New Jersey

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Yesterday

Python Developer(Backend) Location: Hybrid for NYC Interview process: 1st round video interview Second Round will be In-Person Duration: Long term Contract Experience: 12-14+ Years Job Summary We are looking for an experienced Python Backend Developer to design, develop, and maintain scalable backend applications and APIs. The candidate should have strong expertise in Python development, RESTful services, database design, cloud technologies, and microservices architecture. Key Responsibili

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Contract

Senior Backend .NET Developer

Remote

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Today

Job Title: Senior Backend .NET Developer Job Location: Remote Job Type: Full Time Job Description: Develop backend services and REST APIs using C# and .NET. Build business and domain logic using SOLID and Clean Architecture principles. Work with Entity Framework Core, LINQ, SQL Server, and Azure SQL. Design integrations with enterprise and third-party systems. Implement asynchronous processing, background services, and messaging. Work with Azure Service Bus and other messaging technologies. I

Full-time