Senior backend developer jobs in chicopee, ma

Direct Client :: W2 position :: Looking for Sr. Java Backend Developers & Sr. Fullstack Java Developers with Health Insurance Exp.:: Remote

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W2 Contract to Fulltime position No Sponsorship candidates required Position 1: Role: Sr. Java Backend Developer Location: Remote Job Description: We are looking for an experienced Java Backend Developer to design, develop, and maintain scalable, secure, and high-performance enterprise applications in a healthcare and health insurance environment. The ideal candidate will have strong hands-on experience with Java, Spring Boot, Microservices, REST APIs, and database technologies. The candidate

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Contract

Depends on Experience

Sr. Backend Engineer / .Net / Microservices / Lambda / AWS / Distributed Sys. / Remote

Remote or Newport Beach, California

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Our client is a Southern California product engineering company building streaming software for media organizations. Its platform supports live and on-demand content across web, mobile, and connected TV. They are seeking a Senior / Principal .NET Backend Software Engineer to build and improve the services behind their streaming products. This is a hands-on role focused on C#/.NET, distributed systems, and AWS. You will develop APIs, event-driven services, and content ingestion workflows while im

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Full-time

USD 140,000.00 - 160,000.00 per year

Senior Backend or Full Stack Engineer / .NET / React / Distributed Systems

Remote

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A SaaS company that builds streaming and app development platforms for media companies is hiring Senior Backend or Full Stack Engineers. You'll build and harden the backend that runs APIs, event-driven services, ingestion and packaging workflows, and distributed systems behind live and on-demand streaming. Ideal candidates have experience with large .NET estate on AWS, working with dozens of services and serverless applications. This is all new development. This role is fully remote. Required Sk

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Full-time

$130000 - $160000

Senior Backend Engineer

Remote or Stamford, Connecticut

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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

Remote Senior Backend Engineer (Python/FastAPI)

Remote

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About Us: Based in San Francisco, California, Turing is the worlds leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who specialize in software engineering, logical reasoning, STEM, multilinguality, multimodality, and agents; and second, by applying that expertise to

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Contract

200 - 300

Senior Backend Software Engineer, Robot Fleet Orchestration

Remote

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About Mytra: We're creating an entirely new way to solve the most ubiquitous problem in industry - moving and storing material. We're applying robotics and distributed software to create a new class of product for this $1T market. We're focused on the supply chain industry first. The industry is in a massive bind with the continued growth of e-commerce, sharp rise in costs, and supply chain disruptions. What has been a "sleepy" industry for decades is now at the epicenter of sustaining the glob

Full-time

USD 170,000.00 - 200,000.00 per year

Senior Backend Engineer - Databases Tempo | US | Remote

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Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving teams (and their agents) unified visibility so they can see, understand, and act on all their disparate data, wherever i

Full-time

USD 154,445.00 per year

Senior Backend Engineer II, AI Native, Vertical Experiences

Remote

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About Life360 Life360's mission is to keep people close to the ones they love. Our category-leading mobile app, Tile tracking devices, and Pet GPS tracker empower members to protect the people, pets, and things they care about most with a range of services, including location sharing, safe driver reports, and crash detection with emergency dispatch. Life360 serves approximately 102.4 million monthly active users (MAU), as of June 30, 2026, across more than 180 countries. Life360 delivers peace

Full-time

USD 148,000.00 - 216,000.00 per year

Senior Software Engineer, Backend

Remote

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About Aalyria: Aalyria is a leading technology company that supplies laser communications technology and temporospatial software-defined networking platforms to the aerospace industry. With technology acquired from Google, Aalyria is at the forefront of innovation in satellite and airborne mesh networks, as well as cislunar and deep-space communications. We are revolutionizing the orchestration and management of planetary mesh networks using any radio or optical spectrum, any orbit, and any har

Full-time

USD 165,000.00 - 195,000.00 per year

Senior Backend Software Engineer - Loki | NASA | Remote

Remote

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Full-time

USD 154,000.00 - 185,000.00 per year

Senior Backend Engineer - Databases - Analytics | US | Remote

Remote

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Full-time

USD 154,445.00 - 185,334.00 per year

Senior Backend AI Engineer / Startup

Remote

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Looking to build AI systems that directly improve the customer experience for a rapidly growing consumer technology company? An innovative venture-backed organization in the health, wellness, and connected-device space is seeking a Full Stack AI Engineer to join their team. This full-time position focuses on building AI-powered tools, integrations, automation platforms, monitoring systems, and internal applications using Python, TypeScript/JavaScript, SQL, APIs, and modern AI technologies. You'l

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Full-time

$180000 - $230000

Senior Software Engineer, Backend (Online Storage)

Remote

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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 Staff Software Engineer, Backend (Cards)

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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. We are reinventing credit cards entirely. We are working directly with card issuers to change how credit is used throughout the world, creating new types of cards that work for both their everyday lives and large purchases with extremely straightforward, flexible terms. We are looking for a Senior Staff Software Engine

Full-time

USD 265,000.00 - 325,000.00 per year

Senior Software Engineer, Backend (Lakehouse Infra)

Remote

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Full-time

USD 195,000.00 - 255,000.00 per year

Senior Software Engineer, Backend (Identity Data)

Remote

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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. Identity Engineering owns the systems responsible for onboarding all consumers and managing their authentication and verification journeys across Affirm's product surfaces. In this role, you will need to gain a deep understanding of the business, product and engineering context, and utilize that context to own and deli

Full-time

USD 195,000.00 - 255,000.00 per year

Senior Software Engineer, Backend (Batch Infrastructure)

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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 (Workload Safety)

Remote

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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. Affirm's engineering team is building a large-scale, highly available, and global infrastructure that is shared across multiple financial products. Ensuring that our infrastructure is accessible to all engineers is critical to the success of the business. We pride ourselves on our culture across engineering of engaging

Full-time

USD 195,000.00 - 255,000.00 per year

Senior Software Engineer, Backend (Loan Origination and Reporting)

Remote

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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 s

Full-time

USD 195,000.00 - 255,000.00 per year

Senior Software Engineer, Backend (Partner Merchant Interface)

Remote

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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 backend developer jobs in Chicopee, MA, USA