60 senior backend developer jobs at 39 companies in Cornwall, NY
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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
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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
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Senior Backend Software Engineer - Global Commercial Services Technology
Seattle or Phoenix or New York or Washington or Sunrise or Richmond
$123k-$215k/yr HybridFull Time
5+ YOE5+ years backend engineering experience; bachelor’s in CS or related; hands-on Golang, AWS, distributed systems, Kafka, CockroachDB, Camunda/Temporal, Datadog; strong communication and mentoring skills; US work eligibility required.
Golang, AWS, CockroachDB, Camunda, Temporal, Datadog, Kafka, Lambda, ECS, SQS, API Gateway, RDS, S3
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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
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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
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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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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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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
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Sr Manager, Backend Engineering
Irving or Stamford
$116k-$170k/yr HybridFull Time
8+ YOEBachelor’s degree in computer science or related field, 8+ years of web application development, Java EE/Spring, HTML, XML, JSON, PL/SQL, cloud platforms, data pipelines, and people leadership experience.
Java EE, Spring, HTML, XML, JSON, PL/SQL, AWS, Azure, HubSpot, Marketo, Eloqua, Agile, Scrum
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Backend Java Developer
Dallas or Coppell or Tampa or Jersey City
HybridFull Time
6+ YOE6+ years related experience; bachelor's preferred or equivalent; strong backend expertise with Java, Spring Boot, Kafka, Oracle, CI/CD tools, cloud-native and distributed systems; Angular experience; technical leadership and mentoring.
Java, Spring Boot, Kafka, Oracle, Jenkins, GitLab CI, Angular
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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
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
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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
2mo
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Senior Software Engineer, Air AI
Mountain View or Los Angeles or San Francisco or New York City
$170k-$230k/yr HybridFull Time
4+ YOE4+ years software engineering; strong fullstack Python backend and TypeScript/React frontend; Docker and Kubernetes; experience with LLM APIs; production AI features; able to ship quickly.
Python, TypeScript, React, Docker, Kubernetes
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Senior Software Engineer
United States or White Plains
$170k-$200k/yr OnsiteFull Time
5+ YOE5+ years engineering experience, strong backend ownership, product judgment, experience with Python, PostgreSQL, AWS, CI/CD, and building reliable scalable systems.
Python, PostgreSQL, AWS
3w
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Senior Software Engineer - Platforms
New York, New York, United States
$110k-$160k/yr HybridFull Time
6+ YOE6+ years professional software development experience; modern JavaScript/TypeScript, HTML/CSS, React/Vue/Angular; backend Java/Node.js/Python/Go; microservices, REST APIs; cloud (AWS/Azure), Git and CI/CD.
JavaScript, TypeScript, HTML, CSS, React, Vue, Angular, Java, Node.js, Python, Go, RESTful APIs, AWS, Azure, Git, CI/CD, GenAI, SaaS, low-code/no-code, serverless, infrastructure-as-code
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Senior Software Engineer
Chicago or Newark
$111k-$139k/yr HybridFull Time
5+ YOE5+ years software engineering experience; bachelor’s in a technical field or equivalent; full‑stack skills across backend/frontend/databases; experience with AI/automation and strong mentoring and communication skills.
Ruby on Rails, Python, React, PostgreSQL, BigQuery, Git
3w
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Senior Java Developer, FX eCommerce, Vice President
New York City or Jersey City or Tampa
$142k-$213k/yr HybridFull Time
6+ YOEStrong Java skills for multithreaded, low-latency backend systems; 6+ years apps development; experience with large-scale resilient systems, project management, and clear communication.
Core Java, Spring Boot, Solace, JVM
3w
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Senior Java Developer, FX eCommerce, Vice President
New York City or Jersey City or Tampa
$142k-$213k/yr HybridFull Time
6+ YOE6+ years Java development experience building multithreaded, low-latency, large-scale backend systems; experience with system analysis, leadership, and project management; bachelor's degree preferred.
Core Java, Spring Boot, Solace
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Senior Software Engineer
Long Island City, New York, United States
$130k/yr OnsiteFull Time
6+ YOE6+ years software development experience; backend and frontend experience; familiarity with security protocols; ability to design tests and mentor developers.
Postman, Wireshark, RealTerm, Angular, Golang, TypeScript, Delphi, C++, MySQL, Visual Studio, Eclipse, HTML, CSS, React, JavaScript, jsNode, jQuery, AJAX, Windows, Linux (Ubuntu), SQL, TLS, SSL, HTTPS
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