Senior Backend Developer jobs in Armonk, NY

Weehawken Township, New Jersey

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Today

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 Engineer

Remote or Stamford, Connecticut

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Today

RESPONSIBILITIES: Kforce has a client near Stamford, CT that is seeking a Senior Backend Engineer who will work across engineering, product, analytics, and operations to architect durable serverless systems, develop clean and reliable Python services, and power mission-critical workflows such as claims processing, eligibility ingestion, episode creation, provider search, and care coordination. Location: Remote within the U.S. The team is based near Stamford, Connecticut, and candidates must be

Full-time

$150,000 - $190,000 annually

Senior Backend/ Integration Developer

Remote

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Today

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

Senior Backend Software Developer

Remote or Maumee, Ohio

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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

Lead Java Back End Developer - Digital Assets Platform - Vice President

New York, New York

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3d ago

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 Role Overview We are looking for a highly experienced, deeply hands-on Team Lead- Java Back-End Developer to drive day-to-day engineering execution on the Digital Assets Platform. The successful cand

Full-time

USD 142,320.00 - 213,480.00 per year

Senior Software Engineer, Backend (Online Storage)

New York, New York

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Today

At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Data and Storage Services team is responsible for Affirm's data infrastructure across OLTP and OLAP systems, spanning critical online checkout databases, batch orchestration, streaming infrastructure, event-driven frameworks, BI, analytics tooling, large-scale data platforms, and agentic data tools such as semantic

Full-time

USD 195,000.00 - 255,000.00 per year

Senior Software Engineer, Backend (Batch Infrastructure)

New York, New York

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20d ago

At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The vision for the Batch Infra team @ Affirm team is to provide reliable, scalable, self-serve and Affirm-optimized compute solution to enable ML, Product, and Financial Engineering success. Our team is responsible for building and maintaining compute platform that serves as a backbone for processing various Business c

Full-time

USD 195,000.00 - 255,000.00 per year

Senior Software Engineer, Backend (Product Engineering)

New York, New York

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13d ago

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex's AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focu

Full-time

USD 192,000.00 - 240,000.00 per year

Senior Software Engineer, Backend (Loan Origination and Reporting)

New York, New York

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4d ago

At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Engineering team builds systems that power Affirm's mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we're enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing se

Full-time

USD 195,000.00 - 255,000.00 per year

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

Senior Software Engineer, Backend (Partner Merchant Interface)

New York, New York

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19d ago

At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Partner Merchant Interfaces - Integration team within Decisions Foundations is growing and we are looking for a Software Engineer. You will be part of a fast paced team which is responsible for the APIs that Partners and Merchants use to integrate with Affirm, and also power some of our top partners like Amazon and

Full-time

USD 195,000.00 - 255,000.00 per year

Senior Software Engineer, Backend (Card Ledger & Money Movement)

New York, New York

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20d ago

At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Money Movement & Card Ledger team is looking for a passionate Software Engineer to help build the tools and systems that we use to manage money movement, bank data integration & merchant data. Affirm Card is Affirm's newest financial product that marries the functionality of a debit card with access to Affirm's buy

Full-time

USD 195,000.00 - 255,000.00 per year

Senior Backend Engineer - Prompt Security (Node.js / TypeScript)

Remote

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Today

Our Purpose At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find

Full-time

USD 132,000.00 - 182,000.00 per year

Senior Backend Engineer

Remote

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Today

Who we're looking for As a Senior Backend Engineer, you'll be joining an impactful team of highly skilled engineers who are building the core platform features and services to fuel our rapidly growing company! As a team, we are always working to continuously improve both our product and our craft. The Backend team will focus on developing world-class services and integrations, all the while ensuring to keep our apps secure, high-performing, and most importantly scalable (we're growing!). We're l

Full-time

USD 170,000.00 - 195,000.00 per year

Senior Lead Software Engineer, Backend

Remote

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Today

At DraftKings, AI is becoming an integral part of both our present and future, powering how work gets done today, guiding smarter decisions, and sparking bold ideas. It's transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by innovation and readily embrace emerging technology. We're not waiting for the future to arrive. We're shaping it, one bold step at a time. To those who see AI as a driver of progress, come build the

Full-time

USD 160,700.00 per year

Senior Dot Net Developer with Azure

Remote

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7d 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

Sr Mid-Level .NET Backend Developer

Remote

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2d ago

Hi, Greetings from DIA SOFTWARE SOLUTIONS LLC! We Reaching out about an exciting Direct client opportunity with one of our clients. Please review the requirements and let me know if you are interested in this position? Direct client Req:: Need Sr Mid-Level .NET Backend Developer ,Remote PLEASE SEND THE RESUMES TO SKUMAR AT DIASOFTWARESOLUTIONS DOT COM ! Job Description: We help healthcare providers and insurers ensure accurate patient eligibility and coverage, reducing claim denials and improvin

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Contract, Third Party

Depends on Experience

Senior Software Engineer, Backend | Audit Product Team

Remote

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Today

Machinify is a leading healthcare intelligence company with expertise across the payment continuum, delivering unmatched value, transparency, and efficiency to health plan clients across the country. Deployed by over 85 health plans, including many of the top 20, and representing more than 270 million lives, Machinify brings together a fully configurable and content-rich, AI-powered platform along with best-in-class expertise. We're constantly reimagining what's possible in our industry, creatin

Full-time

USD 200,000.00 - 230,000.00 per year

Sr/Staff Software Engineer, Backend | Web Products

Remote

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Today

Full-time

USD 200,000.00 - 250,000.00 per year

Senior MERN Stack Engineer – Backend Heavy + AWS

Remote

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2d ago

Senior MERN Stack Engineer Backend Heavy + AWSLocation: Remote EST Candidates Only Duration: Long-Term Contract Time Zone Requirement: Must be located in and able to work EST hoursRate : $70/hr on CTCRequired Skills 8+ years of overall software development experience. Strong hands-on experience with Node.js and Express.js. Strong backend development experience using JavaScript and TypeScript. Strong experience designing and developing RESTful APIs and backend services. Experience building micr

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Full-time, Third Party

65 - 70

Senior Backend Developer jobs in Armonk, NY 10504, USA