16 back end developer jobs at 12 companies in Cornwall, NY
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Backend Engineer
New York, New York, United States
$110k-$140k/yr HybridFull Time
Bachelor's degree in Computer Science or equivalent experience; strong backend development skills in .NET and Python; experience with databases and CI/CD.
NET (C#, EF Core, ASP.NET Core), Python (FastAPI, Pydantic, SQLAlchemy), SQL Server, Snowflake, Redis, Bitbucket, Jenkins, Docker, Kubernetes, VS Code
1mo
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AVP, Back End Engineer
Whippany, New Jersey, United States
$146k-$175k/yr OnsiteFull Time
Experience building backend services with relational/NoSQL databases, server-side languages and frameworks, cloud and container platforms, secure coding, and automated testing; leadership or team lead experience preferred.
Postgres, Oracle, MongoDB, DynamoDB, Java, Spring Boot, Python, Django, C#, C++, .Net, Nodejs, Go, REST, GraphQL, Docker, AWS, Azure, Open Shift
1w
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Backend Engineer_AI Gateway
Englewood Cliffs or Plano
$11k/mo OnsiteContract
Deep expertise in async Python and network programming, cloud infrastructure, container orchestration, streaming data, security gateways, IAM/SSO, observability, and CI/CD.
asyncio, aiohttp, anyio, WebSocket, SSE, TLS, HTTP/2, HTTP/3, gRPC, FastAPI, Pydantic, Docker, AKS, EKS, GKE, Istio, Envoy, Redis Streams, RabbitMQ, Kafka, PostgreSQL, PgBouncer, HashiCorp Vault, NGINX, Terraform, GitHub Actions, GitLab CI, CASB, DLP, WSS, Azure AD, Entra ID, Okta, SAML 2.0, OIDC, SCIM, Azure OpenAI, Datadog, Prometheus, Grafana, Azure Monitor
1w
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Backend Software Engineer - Assistant Vice President
Greenwich or New York City
$130k-$170k/yr HybridFull Time
6+ YOEDegree in software engineering,6+ years web application development,experience with Python/Scala/Node.js,knowledge of relational/NoSQL modeling,testing and SSO familiarity.
Scala, Ruby, Node.js, Python, FastAPI, ZIO, Scala Test, ZIO Test, PyTest
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Principal Backend Engineer
New York, New York, United States
$135k-$217k/yr HybridFull Time
10+ YOE10+ years backend/data platform experience; Python, API design, AWS serverless; Databricks/PySpark; multi-tenant SaaS and data contracts; leadership without formal management.
Python, SQL, Databricks, PySpark, AWS serverless, Lambda, API Gateway, S3, DynamoDB, IAM, CloudFormation, SAM, MCP, CLI/API, MCP integrations, Orchestration
1w
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Software Engineer, Backend, Level 4
Los Angeles or New York City or Bellevue or Seattle or San Francisco or Palo Alto or Santa Monica
$133k-$235k/yr OnsiteFull Time
2+ YOEBachelor's in a technical field or equivalent experience,2+ years post-Bachelor’s software development experience,experience with distributed systems,operational skills,collaboration and strong CS fundamentals.
Java, C++, Python, NoSQL, Memcache, Redis, Kubernetes, Google services, AWS services
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Senior Software Engineer - Backend
New York or Manhattan or London
$165k-$180k/yr HybridFull Time
3+ YOE3+ years software development experience, strong Java (Spring Boot) and/or Python (FastAPI) skills, SQL experience, cloud (AWS) familiarity, REST API and distributed systems experience, testing and CI/CD knowledge, bachelors preferred.
Java, Spring Boot, Python, FastAPI, SQL, PL/SQL, AWS, Kubernetes, EKS, Docker, Kafka, Redis, MongoDB, GitHub Actions, GitHub Copilot, Amazon Q, LangChain, LlamaIndex, MCP, A2A
1mo
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Software Engineer III- Back End
New York, New York, United States
$133k-$185k/yr OnsiteFull Time
Back-end engineering experience with Java, cloud/distributed systems, RESTful APIs, test automation, and strong communication; formal software engineering training and hands-on professional experience required.
Java, RESTful APIs, AWS
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SR Java Backend / Full Stack Developer LEAD
Whippany or New York
HybridContract
Strong Java (8/11/17+) and Spring Boot experience, microservices and REST API development, Angular frontend exposure, SQL/NoSQL knowledge, Kafka familiarity, CI/CD experience; candidates must be based in NY or NJ and eligible on H4 visa.
Java, Spring Boot, Microservices, REST APIs, Angular, SQL, NoSQL, Kafka, CI/CD, Docker, Kubernetes, AWS, Azure, GCP
2mo
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Sr Manager, Backend Engineering
Stamford or Irving
$116k-$170k/yr HybridFull Time
8+ YOE2+ Mgmt8+ years web application development; Java EE/Spring; cloud platforms (AWS preferred; Azure valued); leadership; scalable backend design.
Java EE, Spring, HTML, XML, JSON, PL/SQL, AWS, Azure
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Lead Software Engineer - Back End Java or Python
New York or United States
$152k-$215k/yr OnsiteFull Time
5+ YOE5+ years applied software engineering experience; recent back-end Java experience; cloud, distributed systems, RESTful APIs, SQL/NoSQL, messaging frameworks; test design; experience with AI-assisted development practices and responsible AI.
Java, Python, SQL, NoSQL, RESTful APIs
1mo
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Lead Software Engineer - Java Backend Engineer
New York, New York, United States
$152k-$215k/yr OnsiteFull Time
5+ YOE5+ years software engineering experience, advanced Java 17+ and Spring Boot, REST/microservices, Cassandra/Cockroach DB, Cucumber, CI/CD practices; experience with AI-assisted development, system design, testing, and operational stability.
Java 17+, Spring Boot, REST, micro services, Cassandra, Cockroach, Cucumber, Maven, Jenkins, Kafka, IBM MQ, AWS
1w
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Software Engineer – Backend Platforms, Assistant Vice President (Wealth Custody & Clearing)
Boston or Princeton or Austin or Quincy or Clifton
$90k-$158k/yr HybridFull Time
7+ YOE7+ years software engineering experience; bachelor's preferred; expertise in backend development, APIs, microservices, cloud, CI/CD, Docker/Kubernetes, and enterprise delivery; strong communication and problem solving.
Java, Kotlin, Python, JavaScript, TypeScript, RESTful APIs, Docker, Kubernetes, CI/CD pipelines
2mo
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Lead Software Engineer - Backend Java Spring Boot, Kafka
Jersey City or Jersey City
$152k-$215k/yr OnsiteFull Time
5+ YOE5+ years experience; Java Spring Boot; Kafka; NoSQL (Cassandra/MongoDB); CI/CD; security and resiliency focus; cloud/AI ML knowledge.
Java, Spring Boot, Kafka, Cassandra, MongoDB, noSQL, CI/CD, Security, Cloud, Artificial Intelligence, Machine Learning, AWS
1w
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Software Engineer – Backend Platforms, Assistant Vice President (Wealth Custody & Clearing)
Boston or Princeton or Austin or Quincy or Clifton
$90k-$158k/yr HybridFull Time
7+ YOE7+ years software engineering experience building backend services, APIs, distributed systems and cloud-native applications; strong engineering fundamentals; Bachelor's preferred; experience with Java/Kotlin/Python/TypeScript; Agile and production support experience.
Java, Kotlin, Python, JavaScript, TypeScript, RESTful APIs, microservices, CI/CD, DevOps, Docker, Kubernetes
1mo
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System Integration and Test Engineer- CWW Backend Nights
Wilton, Connecticut, United States
OnsiteFull Time
0+ YOEBachelor's in a technical discipline required, 0-1 year manufacturing/production experience preferred, cleanroom and optical fabrication experience a plus, able to troubleshoot production issues, lift up to 20 lbs, and be work-authorized in the US without sponsorship.
Teamcenter, SAP
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