Backend developer jobs in merrimack, nh

AWS Backend/Salesforce Integration Rules Engine Developer

Remote

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8d ago

Job Title: AWS Backend/Salesforce Integration Rules Engine Developer Location: REMOTE Security Clearance: Must be willing and able to obtain a CMS T4 Public Trust clearance - Must be a US Person and have lived in the United States at least three (3) out of the last five (5) years Responsibilities Develop framework for a flexible business rules engine. Extract data from Salesforce cases for processing. Perform data validation and execute business rules against structured Salesforce data and r

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Contract

$160000

Java Backend Developer

Remote

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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

Java Developer

Remote

•

Today

Title: Developer Location: Remote Job Type: Contract (12 Months) Compensation: $67.67 - $90.22/hr Industry: Retail About the Role Our client, a leading retailer recognized for its large-scale digital commerce and enterprise technology ecosystem, is seeking a Developer to join a team responsible for powering enterprise pricing systems. This role will support applications that process and publish price changes through REST APIs and Kafka-based event-driven services, helping ensure accurate and t

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Contract

Depends on Experience

Senior Back End Software Developer (AI, Java, Vert.x, AWS) - Remote US

Remote or Waltham, Massachusetts

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Today

Job Title Senior Back End Software Developer (AI, Java, Vert.x, AWS) - Remote US Location(s) Waltham About Us Revvity is a developer and provider of end-to-end solutions designed to help scientists, researchers, and clinicians solve the world's greatest health challenges. We pair the enthusiasm of an industry disruptor with the experience of a longtime leader. Our team of 11,000+ colleagues from around the globe are vital to our success and the reason we're able to push boundaries in pursuit o

Full-time

USD 130,000.00 - 158,000.00 per year

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

Remote

•

Today

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

Full Stack Engineer (70/30 front end to back end)

Merrimack, New Hampshire

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Today

job summary: Exposure to data platforms or analytics tools, especially within Microsoft Fabric Familiarity with broader DevOps practices and deployment automation location: Merrimack, New Hampshire job type: Contract salary: $79 - 80 per hour work hours: 8am to 5pm education: Bachelors responsibilities: Full stack software engineering 8 plus years of experience; with a focus in financial services applications is a plus BS/BA Degree or equivalent experience required Strong hands-on exper

Contract

USD79 - USD80

Backend Software Engineer (Platform)

Remote

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Today

Backend Software Engineer (Platform) W2 Contract Pay Rate: $60 - $70 per hour Location: Cupertino, CA - Remote Role Job Summary: We are looking for a strong Senior Software Engineer with experience in data engineering concepts to support our data platform initiatives. This role is best suited for someone who has solid backend engineering fundamentals and can work independently on data-related systems, pipelines, and services. Duties and Responsibilities: Design, build, and maintain backend

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Contract

$60 - $70 per hour

UI/UX Developer

Remote

•

2d ago

Job Title: UI/UX Developer Location: McLean, VA can work Offsite Type: Contract To Hire Compensation: Not specified Work Model: REMOTE Critical Competencies A critical competency for this role is the ability to leverage agentic AI development tools (such as Claude Code, Antigravity, Kiro, or similar platforms) to accelerate coding workflows, debug complex issues, and streamline the software development lifecycle. Candidates must possess foundational AI knowledge and practical experience integ

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Contract

Depends on Experience

Lead Backend Engineer - PHP / Adobe Commerce (Magento 2) - Remote

Remote

•

3d ago

Job Title: Lead Backend Engineer PHP / Adobe Commerce (Magento 2) Location: Remote Experience: 8+ Years Must Have: Magento, AEM, Python Overview / Summary We are seeking a Lead Backend Engineer with 6+ years of backend development experience and strong expertise in PHP and Adobe Commerce/Magento 2. This role requires hands-on experience with Magento APIs, GraphQL, REST APIs, event-driven architecture, cloud-native services, performance optimization, automated testing, CI/CD, and production supp

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Contract

$50 - $60

Backend AI Engineer (Python)

Remote

•

Today

Role: Backend Engineer 2 openings Location: Remote SKILLS: Python SQL AI Azure or Google Cloud Platform experience 3 years of experience

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Contract

Depends on Experience

Lead Core Java Engineer

Remote

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2d ago

Job Description:- We are seeking a hands-on Lead Java Engineer to provide technical leadership for Delivery and Mapping systems that power delivery, order awareness, and real-time operational workflows. In this role, you will shape architecture, set engineering standards, mentor engineers, and stay close to the work through solution design, implementation guidance, code reviews, troubleshooting, and production readiness. Experience in QSR, restaurant technology, last-mile delivery, logistics, or

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Contract

70 - 75

TypeScript Backend Engineer

Remote

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3d ago

Remote must work central hoursDuration 3 to 4 months About the Role:We are seeking a Mid-Level TypeScript Backend Engineer to develop and maintain scalable server-side infrastructure in a cloud-first environment. Utilizing Node.js, TypeScript, and Google Cloud Platform (Google Cloud Platform), you will build highly performant APIs, manage event-driven data workflows, and collaborate with frontend teams to power robust web applications.Key Responsibilities: Develop efficient, maintainable, and t

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Contract

$35 - $40

Senior Backend Engineer

Remote

•

Today

Highlights: Location: Remote (CET hours preferred) Language: Russian-speaking team About Fundraise Up We're Fundraise Up - a global fundraising platform built to make donating to nonprofits fast, seamless, and accessible to all. Every month, our technology powers tens of millions of dollars in donations across the globe. We focus on innovation that directly impacts results: faster load times, higher conversion rates, global payment support, and accessibility-first design. Our platform is tru

Full-time

Remote Backend Engineer

Remote

•

Today

Remote Backend Engineer Our client, a growing enterprise technology organization, is seeking a Backend Engineer to build and operate core APIs, services, orchestration layers, integrations, and business capabilities. This role combines strong software engineering discipline with modern AI-assisted development practices to deliver secure, scalable, resilient services from design through production operation. Key Responsibilities: Design, build, test, deploy, and operate cloud-native backend ser

Full-time

Senior Backend Engineer // Fully Remote // TypeScript Node.JS

Remote

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Today

A fast-growing B2B infrastructure platform is expanding its engineering team and looking for a Senior Backend Engineer to join one of its most critical and high-velocity teams. This is a full-time, 100% remote opportunity built around a TypeScript, Node.js, and Nest.js stack, with microservice architecture at the core. The platform powers real-time services for a rapidly growing merchant base and operates at meaningful scale. EST hours are required. This team owns more services than any other i

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Full-time

$170000 - $200000

Software Engineer 5

Remote

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Today

3Core Systems, Inc is an SAP and SuccessFactors 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 Software Engineer 5 (Lead Java Backend Developer) for one of our clients in Chicago, IL (Remote) Job Title: Software Engineer 5 (Lead Java Backend Developer) Location: Chicago, IL (Remote, but there will be travel

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Contract, Third Party

Depends on Experience

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

Remote

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Today

Applied AI Engineer, Artificial Intelligence (AI) Required, 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 w

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Full-time

$140,000 - $200,000

Lead Backend Engineer

Remote or New Jersey

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Today

ead Backend Engineer Temp-to-Hire Job Title: Lead Backend Engineer Employment Type: Temp-to-Hire Location: Remote Work Authorization: No visa sponsorship or 1099 candidates Position Overview We are looking for a Lead Backend Engineer with strong leadership capabilities and hands-on software development experience. This role is ideal for an engineer who can provide technical direction while remaining actively involved in architecture, coding, testing, deployment, and production support. The

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Full-time, Contract

Principal Backend Engineer - Music Discovery Platform - Roon

Remote or New York, New York

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Today

A Career at HARMAN As a technology leader that is rapidly on the move, HARMAN is filled with people who are focused on making life better. Innovation, inclusivity and teamwork are a part of our DNA. When you add that to the challenges we take on and solve together, you'll discover that at HARMAN you can grow, make a difference and be proud of the work you do every day. About the Role At Harman International, we are revolutionizing music metadata management and discovery. We're seeking a Princi

Full-time

USD 125,250.00 - 183,700.00 per year

Software Engineer, Back-End - Mail (US)

Remote

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Today

Superhuman offers a remote-flexible working model for this particular role on the Mail team. This gives team members plenty of focus time and the flexibility to do their best work from wherever they're based, while staying closely connected to a collaborative, tight-knit team culture. For those based in San Francisco, New York City, or Seattle, a hybrid setup is also available. About Superhuman Superhuman is the AI productivity platform on a mission to unlock the superhuman potential in everyo

Full-time

USD 186,000.00 - 300,000.00 per year

Backend developer jobs in Merrimack, NH, USA