Backend Developer Jobs in New York, NY

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Mainframe Tester /API Test Engineer (Backend)

Photon

•

Jersey City, New Jersey, USA

Full-time

Mainframe Tester / API Test Engineer (Backend)Jersey City, NJ (Onsite)Minimum 10+ years in backend testing with a strong focus on payments and banking systems. Expertise in mainframe and middleware technologies including MQ, and ESB. Proficient in validating JSON and XML data. Experience in financial services is highly preferred.Roles and Responsibilities:Conduct functional testing of backend systems involving mainframe and middleware components. Validate and compare JSON and XML data structures
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Posted 31 days ago | Updated 29 days ago

Sr Python Backend Engineer

Ledgent Technology

•

Remote

Full-time

No Corp-to-Corp, No 3rd party firms . Job Title: Sr Python Backend Engineer Location: 100% Remote (U.S. Based) Employment Type: Direct-hire Compensation: $150,000 to $190,000 (based on level of experience) . Partnered with a client who is creating cutting-edge AI/ML products (Generative AI) that solve healthcare staffing issues and administrative burdens using conversational AI and their patented voice biomarker technology. . They're seeking a skilled Python Backend Engineer to help design, b
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Posted 16 hours ago

Sr Backend Engineer (TypeScript)

Ledgent Technology

•

Remote

Full-time

No Corp-to-Corp, No 3rd party firms . Job Title: Sr Backend Engineer (TypeScript) Location: 100% Remote (U.S. Remote) Employment Type: Direct-hire Compensation: Up to $190,000 (based on level of experience) . Partnered with a client who is creating cutting-edge AI/ML products (Generative AI) that solve healthcare administrative burdens using conversational AI and their patented voice biomarker technology. . They're seeking a skilled Sr. Backend Engineer to help design, build, and maintai
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Posted 5 days ago | Updated 16 hours ago

.Net Backend Architect (Remote)

Neo Prism Solutions, LLC

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Remote

Contract

Job Title: .NET Backend Developer with Azure Remote Job Description: We are looking for a .NET Backend Developer with experience in Microsoft Azure. The candidate should be skilled in C#, .NET Core, and building APIs. Experience with Azure services like App Services
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Posted 1 day ago | Updated 6 hours ago

Senior Software Engineer, Backend Platform

mongoDB, inc

•

New York, New York, USA

Full-time

MongoDB's mission is to empower innovators to create, transform, and disrupt industries by unleashing the power of software and data. We enable organizations of all sizes to easily build, scale, and run modern applications by helping them modernize legacy workloads, embrace innovation, and unleash AI. Our industry-leading developer data platform, MongoDB Atlas, is the only globally distributed, multi-cloud database and is available in more than 115 regions across AWS, Google Cloud, and Microsoft
Posted 9 days ago | Updated moments ago

Backend Engineering Lead / Engineering Manager / New York City / Hybrid

Motion Recruitment Partners, LLC

•

New York, New York, USA

Full-time

We are looking for a talented and driven Backend Engineering Lead / Engineering Manager to join a fast-growing AI-focused product team in New York City. This hybrid role combines hands-on backend development with technical leadership and people management. You'll play a critical role in building the infrastructure behind cutting-edge, AI-driven legal technology and leading a team through rapid growth and scaling. As an Engineering Lead, you will guide the engineering team in delivering robust ba
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Posted 53 days ago | Updated 8 hours ago

Principal Cybersecurity Engineer

NuLeap

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Remote or US

Third Party

Job Summary (List Format): - Lead the design and implementation of secure, scalable, and high-performance cloud-based systems. - Architect and develop backend systems using Rust (Tokio, Actix, Axum, Rocket) and Scala (Akka, ZIO, Cats, Play). - Ensure secure execution environments utilizing WebAssembly (WASM). - Employ extensive AWS services (Lambda, ECS, S3, API Gateway, CloudFront, DynamoDB, GuardDuty, WAF, Security Hub, KMS) for cloud infrastructure and security. - Implement and enforce AP
Posted 27 days ago | Updated 5 days ago

Senior React Developer (10+ Years Experience) - Remote

URSI Technologies Inc.

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Remote

Third Party, Contract

Position Senior React Developer (10+ Years Experience)Location RemoteDuration 1+ Year (Extendable) Job Description: We are seeking a highly skilled Senior React Developer with over 10 years of experience in frontend development. The ideal candidate will have deep expertise in JavaScript, React.js, TypeScript, and modern UI/UX principles. You ll be responsible for leading frontend architecture, mentoring developers, collaborating with cross-functional teams, and delivering high-performance, scal
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Posted 41 days ago | Updated 4 days ago

Web Developer

Pozent

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Remote or Woburn, Massachusetts, USA

Contract

6 month plus contract opportunity Remote position - CST Overview We are seeking a skilled and reliable Web Developer / Backend Engineer to provide ongoing support and project-based development across our digital ecosystem. This includes building new websites, updating existing websites, and handling server-side tasks and remediation. Familiarity with Microsoft Azure and Kentico CMS is essential. Background Our organization operates multiple web properties and digital tools hosted primarily in
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Posted 46 days ago | Updated moments ago

Accessibility Web Developer (Mobile + Web)

Allwyn Corporation

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Remote

Contract, Third Party

NOTE:This is 4 month contract only. 40 Hrs / per week. We are looking for a skilledFront-End Developerwho can contribute across bothmobile and web (.com)platforms. The ideal candidate will have hands-on experience withAngular and Ionic frameworks, and a strong understanding ofADA complianceto ensure accessibility standards are met across all digital experiences. Responsibilities: Develop and maintain responsive and accessible applications across mobile and web platforms.Collaborate with UI/UX
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Posted 28 days ago | Updated 4 hours ago

Java Backend Lead

Raas Infotek LLC

•

Jersey City, New Jersey, USA

Contract

Role: Java Backend LeadLocation: NJ/NYW2 Contract Note:Need Experienced Technical and Architecture Consultant with 7 - 12 years of overall experience to provide consulting services on enterprise initiatives for our clients. The candidate will work with our clients to design and deliver complex custom projects with most optimum architectural approach. This candidate should apply Design Thinking in creatingModern, Lightweight and Enterprise-Ready Solutions and Architectures using the latest techno
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Posted 32 days ago | Updated 2 hours ago

Senior Back End Software Engineer

Yoh - A Day & Zimmerman Company

•

New York, New York, USA

Full-time

Senior Java Back-end Developer 9+ month contract (W2 ONLY, NO C-C) Hybrid Manhattan, NY We are seeking a skilled and experienced Senior Backend/Data Engineer for a hybrid position based in New York. This role will support a high-performing development team by delivering robust backend solutions, with a focus on data pipelining, cloud-native architecture, and stakeholder collaboration. Key Details: This is a HYBRID role based in New YorkFinal interview will be conducted onsitePrimarily seeking
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Posted 5 days ago | Updated 1 hour ago

Software Engineer, Backend

West Coast Consulting LLC

•

Remote

Full-time

Job Description REMOTE JOB DESCRIPTION We're looking for a skilled Senior Backend Engineer (Contractor) to join our GraphQL API platform team. In this role, you'll focus on migrating legacy Python services to Go within our GraphQL API services. Experience with GraphQL, including GraphQL Federation and Apollo Router, is a strong plus. You'll use internal tools and processes developed by the GraphQL team to accelerate our migration from Python to Go. We're seeking someone who thrives in a fas
Posted 38 days ago | Updated 8 hours ago

Backend Software Engineer

Pinterest, Inc.

•

Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility
Posted 50 days ago | Updated moments ago

Senior Back End Software Engineer

Yoh - A Day & Zimmerman Company

•

New York, New York, USA

Full-time

Senior Java Back-end Developer 9+ month contract (W2 ONLY, NO C-C) Hybrid Manhattan, NY We are seeking a skilled and experienced Senior Backend/Data Engineer for a hybrid position based in New York. This role will support a high-performing development team by delivering robust backend solutions, with a focus on data pipelining, cloud-native architecture, and stakeholder collaboration. Key Details: This is a HYBRID role based in New YorkFinal interview will be conducted onsitePrimarily seeking
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Posted 29 days ago | Updated moments ago

Software Engineer, Backend

West Coast Consulting LLC

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Remote

Contract

Job Description Remote In this role, you'll focus on migrating legacy Python services to Go within our GraphQL API services. Experience with GraphQL, including GraphQL Federation and Apollo Router, is a strong plus. You'll use internal tools and processes developed by the GraphQL team to accelerate our migration from Python to Go. We're seeking someone who thrives in a fast-paced environment, excels at solving complex problems, and collaborates effortlessly across teams. Responsibilities inclu
Posted 12 days ago | Updated 8 hours ago

Backend Engineer

Jobot

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New York, New York, USA

Full-time

Founding Equity + Great Benefits This Jobot Job is hosted by: Ryan Kilroy Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $170,000 - $210,000 per year A bit about us: APIs underpin the internet but are still painful to work with. They are often untyped, unstandardized, and out-of-sync across multiple sources of truth. We enable businesses to offer "Stripe-level" SDKs (client libraries) and Docs for their REST API. Inspired by internal tooli
Posted 2 days ago | Updated 3 hours ago

Principal Backend Engineer, Materia AI

Thomson Reuters U.S. Inc.

•

Remote or Eagan, Minnesota, USA

Full-time

Principal Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Lead Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role:
Posted 44 days ago | Updated moments ago

Senior Python Developer / Remote / Cloud & Microservices

Motion Recruitment Partners, LLC

•

Remote or San Francisco, California, USA

Full-time

Job Description Join a globally recognized leader in the entertainment and media industry for a fully remote, long-term contract role focused on impactful backend development. Known for its cutting-edge technology, strong developer-first culture, and commitment to work-life balance, this company is looking to bring on a Senior Python Backend Engineer to join its high-impact platform team. You'll be contributing to the architecture and development of highly scalable backend systems, APIs, and s
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Posted 13 days ago | Updated 8 hours ago

Senior Backend Software Engineer

Pinterest, Inc.

•

Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility
Posted 50 days ago | Updated moments ago