Backend Developer jobs in Londonderry, NH

Remote

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4d ago

*Only W2 Profiles* We are seeking a Senior Backend Engineer with strong Golang expertise to build and scale backend systems for a high-growth e-commerce marketplace. The ideal candidate will have experience designing distributed systems, building REST/gRPC APIs, developing Airflow pipelines, and working with cloud-native technologies. Key Skills: 7+ years of backend development experience3+ years of hands-on Golang developmentExperience with distributed systems on Google Cloud Platform/AWS/Azure

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Contract

Depends on Experience

Mobile Backend Integration Developer(Swift, Kotlin, Flutter, ReactNative & Java) || Remote role

Remote

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10d ago

SeniorMobileBackend Integration Developer Remote role 6+month initial contract with possibility of extensions. IMPORTANT: Selected candidate must be able to obtain and maintain a public trust clearance Must have Flutter and/or React Native Swift (iOS) Kotlin (Android) Java backend integration Legacy system integration (COBOL or enterprise systems) Position Overview We are seeking a highly skilled and versatileSeniorMobile& Integration Developerto bridge the gap between cutti

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Contract, Third Party

Depends on Experience

Senior Application Developer - Backend Focus (Remote)

Remote

•

Today

Job Description Oracle Health is transforming the future of healthcare by building secure, scalable, AI-enabled healthcare platforms that improve patient outcomes, reduce administrative burden, and enable healthcare organizations to operate more efficiently. As part of Oracle's broader cloud and AI strategy, Oracle Health combines industry-leading healthcare applications, electronic health records (EHR), healthcare data platforms, and Oracle Cloud Infrastructure (OCI) to create the next generat

Full-time

USD 89,200.00 - 209,500.00 per year

Principal Application Developer, Backend Focus (Remote)

Remote

•

Today

Full-time

USD 114,600.00 - 234,600.00 per year

Java Full Stack Developer (USA/ Canada)

Remote

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11d ago

Company Profile Blackstraw.ai is an end-to-end technology services company specializing in Artificial Intelligence (AI) and Engineering solutions across Data Science, Data Engineering, LLM/GenAI and LLMOps. Founded in 2018, we help global enterprises across North America, Europe and Asia to build and operationalize AI systems that create measurable business impact. Our mission is to make AI adoption simpler, faster and scalable through a blend of deep domain expertise, reusable accelerators and

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Full-time

Depends on Experience

Full Stack Engineer (Java, Spring Boot, AWS)

Remote

•

4d ago

Founded in 2001, Optima Global Solutions Inc., brings over 2 decades of experience and expertise in facilitating IT transformation within industries ranging from higher education and government to manufacturing and financial services. Sporting scalable and diverse business solutions expertise along with deep-domain based resourcing capabilities, Optima has a specialization in Automation and AI, Strategic Staffing and Custom Solutions Development, focusing on the core pillars of process, people,

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Full-time

$1 - $1

AI Backend Engineer, Work From Home - M

Remote

•

2d ago

AI Backend Engineer, 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 working across multiple countries to build re

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Full-time

$140,000 - $200,000

SDET Backend

Merrimack, New Hampshire

•

Today

job summary: Excellent written and verbal communication skills Highly collaborative team player with the ability to work effectively in cross-functional teams Strong problem identification and resolution skills Continuous improvement mindset, viewing challenges and failures as opportunities to learn and grow Appreciation for sustainable development practices, including maintaining a healthy work-life balance A proactive QA mindset that assumes products may contain defects and works diligen

Contract

USD71 - USD72

SDET Back End - Onsite

Merrimack, New Hampshire

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3d ago

Title:SDET Back End - Onsite Location:Merrimack, NH / Smithfield, RILength:Long termRestriction:w2 onlyDescription: Webcam interview; Long term project Linkedin Must Onsite Job Description:Must Have Skills:API Testingcapabilities and UI testingWebservices automationJava and Selenium will be used for the bulk of the role.

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Contract

Depends on Experience

Senior Backend Engineer – Golang

Remote

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9d ago

Senior Backend Engineer Golang Location: San Francisco Bay Area CA / REMOTE Duration: 12 months Job Description: About the Role We are looking for a Senior Backend Engineer to design, build, and maintain the backend systems that power our e-commerce marketplace. This role spans API development, data pipelines, and core product backend features. Responsibilities - Work closely with product managers to translate requirements into technical solutions - Design clean, maintainable, and well-document

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Contract

60 - 65

Senior Backend Engineer ".Net Core"

Remote or Virginia

•

Today

job summary: Are you an elite technical problem solver looking to pioneer the future of AI-driven security? A well-funded, leading defense technology startup is seeking a top-tier engineer to help build the core systems of a bleeding-edge agentic platform. You will be joining an elite team of engineers operating with extreme autonomy to build software that protects critical infrastructure. We offer a comprehensive benefits package including medical, dental, and vision coverage. location: Teleco

Full-time

USD140,000 - USD200,000

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

CGEMJP00345169 Angular Lead Remote Chicago,

Remote or Chicago, Illinois

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2d ago

Job ID: CGEMJP00345169 Job Title: Angular Principal Engineer Location: Remote - 333 W Wacker Dr 3rd Fl ADC/ ASE River Center Chicago Illinois Duration: 06 Months Description: Principal Engineer role client is looking for 70-80% Front end and 20-30% back-end expertise. Principal Engineer - 1 (Onshore) - Heavy Angular front-end (70:30) Summary Description We are seeking a highly experienced and innovative Principal (Director Level) Software Development Engineer to lead the application architec

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Full-time, Part-time, Contract, Third Party

Front End Developer / Senior UI Developer

Remote

•

6d ago

Front End Developer / Senior UI DeveloperClient: Confidential Location: Remote (USA) Job Type: Contract Duration: Long-Term Experience Required: 8+ Years Job SummaryWe are looking for an experienced Front End Developer / Senior UI Developer to design, develop, and maintain modern, responsive web applications. The ideal candidate should have strong expertise in React.js, JavaScript, HTML5, CSS3, and experience building scalable, high-performance user interfaces. Key ResponsibilitiesDesign and dev

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Contract

Depends on Experience

Sr. Software Engineer - Backend

Lowell, Massachusetts

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Today

Job descriptions may display in multiple languages based on your language selection. What we offer: At Magna, you can expect an engaging and dynamic environment where you can help to develop industry-leading automotive technologies. We invest in our employees, providing them with the support and resources they need to succeed. As a member of our global team, you can expect exciting, varied responsibilities as well as a wide range of development prospects. Because we believe that your career pa

Full-time

USD 85,670.00 - 159,110.00 per year

Java Backend Sr. Engineer / Lead

Remote

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4d ago

Position: Java Backend Sr. Engineer / Lead Location: Remote Must-Have Skills:Strong hands-on experience with Java 8/11/17 Expertise in Spring Boot and Spring Security Experience implementing OAuth2, OIDC, JWT, and token-based authentication Hands-on experience with Okta or similar IAM platforms Experience with API Gateway/Security Gateway implementations Strong understanding of REST APIs and Microservices architecture Knowledge of secure coding practices and enterprise security standards Experie

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Contract

Depends on Experience

Backend Architect – AI-Enabled Platform Engineering - FTE - REMOTE WITH TRAVEL

Remote

•

4d ago

Location: New York OR New Jersey Remote (but travel when required) Travel: 25% during active client engagements Position Backend Architect AI-Enabled Platform Engineering (Hands-on IC) Experience:15+ years of software engineering experience, including 5+ years at Architect / Principal IC level Location: New York OR New Jersey Remote (but travel when required) Travel: 25% during active client engagements Role :- FTE End Client: Service-based industry Experience Level: 15+ years Full Stack

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Full-time, Third Party

180,000 - 190,000

Applied AI Engineer, Work From Home - M

Remote

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2d ago

Applied AI Engineer, Work From Home We are looking for an Applied AI Engineer to design, build, and optimize AI-powered features that sit directly inside our product workflows. The Applied AI Engineer role focuses on turning model capabilities into real product behavior, where AI interacts with users, supports decision-making, and powers automation across insurance journeys. This is a fully remote role where you will be part of a global engineering team working across multiple countries to bui

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Full-time

$140,000 - $200,000

Senior Software Engineer (Ruby/RoR, Chatbots & AI)

Remote

•

Today

About Workato Workato delivers enterprise infrastructure for the agentic era, redefining iPaaS and helping enterprises unify data, applications, processes, and AI into a single, governed platform. A leader in Enterprise MCP and trusted by 50% of the Fortune 500, Workato's cloud-native architecture connects every application, data source, and process to power real-time orchestration at scale. With enterprise-grade security and continuous innovation at its core, Workato provides the trusted found

Full-time

Senior Backend .NET Engineer

Remote or Lakeland, Florida

•

Yesterday

RESPONSIBILITIES: Kforce has a client that is seeking a Senior Backend .NET Engineer in Lakeland, FL. General Overview: We are seeking an experienced Senior Backend .NET Engineer to design, develop, and maintain robust, scalable backend systems that power our enterprise applications. This role focuses on server-side development using modern .NET technologies, ensuring high performance, security, and seamless integration with front-end components and third-party services. Key Responsibilities:

Contract

$62.50 - $70.00 hourly

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Backend Developer jobs in Londonderry, NH, USA