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913 backend software engineer jobs at 463 companies in Elizabeth, NJ

2mo
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Backend Software Engineer - Saga
New York or Seattle or Arlington or Rosslyn
OnsiteFull Time
Rune Technologies
Rune Technologies: Develops AI-powered logistics and sustainment software for military operations.
4+ YOE4+ years backend software engineering; experience with GenAI systems, vector databases, LLM integrations, and evaluation harnesses; strong problem solving and ownership.
GenAI, vector databases, LLM integrations, RAG architectures, tool-call frameworks, production-grade software
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1mo
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Senior Backend Software Engineer
New York City or San Francisco
$100k-$200k/yr OnsiteFull Time
Alpaca Health
Alpaca Health: Enabling clinicians to launch and scale independent autism care clinics.
Senior backend engineer with strong system-design and ownership; builds integrations, billing/payments, data pipelines, and AI/LLM infrastructure. Experience in operationally complex domains (healthcare, fintech, insurance) or early-stage startups preferred.
Candid, Silna, Availity, HubSpot, LLM
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1w
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Software Engineer Backend (Java)
New York, New York, United States
$180k-$220k/yr OnsiteFull Time
CLEAR
CLEARNYSE: YOU: Secure biometric identity platform for travel and venue access
3+ YOE3+ years backend development in Java, experience with cloud services, containerization, CI/CD, and strong communication and mentoring skills.
Java, Kafka, Postgres, AWS, Docker, Kubernetes, Github, Argo, Jenkins
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3w
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Senior Backend Software Engineer
New York City, New York, United States
$190k-$215k/yr HybridFull Time
Tennr
Tennr: Automates healthcare referral workflows and patient intake with AI.
5+ YOE5+ years backend development experience with strong JavaScript and TypeScript skills; experience building scalable services, workflow automation, data pipelines, and integrating ML into production.
JavaScript, TypeScript, machine learning
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17h
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Senior Backend Software Engineer / Consultant
New York City, New York, United States
$75-$85/hr OnsiteFull Time
NYC IT
NYC IT: Provides IT managed services, cybersecurity remediation, and hardware solutions.
5+ YOERequires 5+ years of backend engineering, strong C#/.NET/ASP.NET Core, cloud, APIs, integrations, SQL/NoSQL, security, DevOps, testing, and production troubleshooting experience; bachelor's degree or equivalent required.
C#, .NET, ASP.NET Core, Azure, AWS, GCP, Azure Functions, AWS Lambda, Kubernetes, AKS, ECS, Fargate, GKE, Cloud Run, Durable Functions, Step Functions, Temporal, Kafka, Event Hub, Pub/Sub, SNS, SQS, REST, SOAP, SFTP, PGP, OAuth 2.0, OIDC, JWT, RBAC, IAM, TLS, SQL Server, PostgreSQL, ETL, ELT, Azure DevOps, GitHub Actions, GitLab CI/CD, Terraform, ARM, Bicep, CloudFormation, Azure SQL, Azure API Management, Power BI, iOS, CI/CD
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2mo
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Backend Software Engineer - Calculation Engines
New York, New York, United States
$107k-$168k/yr OnsiteFull Time
Addepar
Addepar: Provides a data platform for wealth management and portfolio reporting.
3+ YOE3+ years of software engineering; experience with object-oriented languages; strong communication; ability to solve complex problems with legacy and modern tech.
Java, Python, SQL, SQS, relational databases, key-value stores, Kubernetes, Linux, shell scripting
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4w
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Backend Engineer
New York, New York, United States
HybridFull Time
Chariot
Chariot: Payment infrastructure for charitable giving and Donor Advised Funds.
4+ YOE4+ years software development experience, 2+ years backend development, proficiency with Go, Node, Docker, Terraform, Kubernetes, Postgres, REST and gRPC; bachelor’s in a technical field preferred.
Go, Node, Docker, Terraform, Kubernetes, Postgres, REST APIs, gRPC, AWS
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3d
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Senior Software Backend Engineer - Market Pricing
New York City or San Francisco or Salt Lake City or Kraków or United Kingdom
$167k-$225k/yr HybridContract
Pave
Pave: Cloud-based software for managing and benchmarking employee compensation.
5+ YOERequires 5+ years of backend engineering experience, scalable systems design, performance and reliability expertise, strong judgment, and ability to lead ambiguous projects and mentor engineers.
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2mo
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Staff Software Engineer, Backend
New York City or Canada
$241k-$284k/yr HybridFull Time
GlossGenius
GlossGenius: All-in-one business management platform for beauty and wellness professionals.
7+ YOE7+ years engineering experience, system design ownership, strong Kotlin backend skills, AWS and Kubernetes familiarity, experience integrating AI models/LLMs, mentoring and technical leadership.
Kotlin, TypeScript, AWS, Kubernetes, Claude Code, GitHub Copilot, LLMs
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1w
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Senior Backend Software Engineer - Apple Sports
New York City, New York, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Expert backend engineering role developing reliable, scalable solutions for processing and displaying real-time sports data across Apple Sports and Apple TV.
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2mo
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Backend Engineer
Giv'atayim or Tel Aviv or New York City or London or Singapore or São Paulo
HybridFull Time
Personetics
Personetics: AI-powered personalized banking and financial guidance platform.
5+ YOE5+ years backend/platform engineering experience, 5+ years with Java, Kubernetes experience, SQL and relational DB knowledge, Python familiarity, leadership and platform design experience, practical experience with AI dev tools (e.g., Cursor).
Java, Python, Kubernetes, SQL, Cursor, CI/CD, Azure, AWS
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1mo
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TypeScript Backend Engineer
Tokyo or New York City or Singapore
RemoteFull Time
Startale
Startale: Builds blockchain infrastructure and applications for mass adoption.
Senior backend engineer with extensive production experience building scalable TypeScript backend systems, PostgreSQL expertise, Web3 integrations, and operating high-traffic distributed services.
TypeScript, NestJS, Fastify, Express, PostgreSQL, Go, Kafka, NATS, RabbitMQ, The Graph, Subsquid, Docker
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3mo
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Staff Backend Engineer
New York City, New York, United States
$210k-$280k/yr HybridFull Time
TriEdge Investments
TriEdge Investments: Private investment firm developing AI-driven technology for healthcare companies.
Design and build scalable backend systems; collaborate with clinical/technical teams; maintain high engineering standards and observable, maintainable code; work with EHRs and data pipelines.
Backend frameworks, APIs, Data processing, Databases
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1mo
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Backend Engineer
New York City, New York, United States
$125k-$165k/yr OnsiteFull Time
Discernis
Discernis: AI-native document intelligence software for legal investigations and discovery.
Professional Python backend experience; familiarity with Flask, relational databases, background processing, and search systems; focus on reliability, performance, and secure design.
Python 3.11, Flask, SQLAlchemy, PostgreSQL, Elasticsearch, OpenSearch, Redis, Docker, Celery
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2w
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Backend Software Engineer - Assistant Vice President
Greenwich or New York City
$130k-$170k/yr HybridFull Time
iCapital
iCapital: A global fintech platform for alternative investment marketplace access.
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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2d
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Backend Engineer
New York City, New York, United States
OnsiteFull Time
Portra
Portra: Software platform automating insurance quote, bind, and issue workflows.
2+ YOERequires 2+ years building production backend systems, a master's degree or equivalent experience, Python, SQL and NoSQL, cloud deployment, Docker, Kubernetes, APIs, and CI/CD experience.
Python, AWS, GCP, Docker, Kubernetes, SQL, NoSQL, CI/CD, Flask
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1mo
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Backend Engineer
New York, New York, United States
$162k/yr HybridFull Time
Slang AI
Slang AI: AI-powered voice platform for restaurant guest communications and reservations.
3+ YOE3-5 years backend experience; strong JVM skills (Kotlin/Java/Scala); GraphQL, NoSQL/Firestore, Docker, GCP, Terraform; experience with Twilio/Dialogflow; test-driven development and debugging skills.
Kotlin, Java, Scala, GraphQL, Twilio, Dialogflow, React, TypeScript, Firestore, Docker, Google Cloud Platform, Cloud Functions, Pub/Sub, Terraform, Slack, GitHub
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1mo
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Backend Engineer
New York, New York, United States
RemoteFull Time
Themis
Themis: Provides a compliance collaboration platform for financial institutions.
Experience building production applications with Ruby on Rails, PostgreSQL, and Redis; background job and API design experience; strong testing, security, reliability, and communication skills; ability to own backend systems end-to-end.
Ruby on Rails, PostgreSQL, Redis, AWS, GCP, Azure
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2mo
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Senior Backend Engineer
New York or United States
RemoteFull Time
Astra
Astra: Develops APIs for automated and real-time bank transfers.
5+ YOE5+ years building production backend systems, strong systems engineering, Python experience, distributed systems and microservices, Google Cloud Platform familiarity, BS in CS/Engineering required, MS preferred.
Python, Google Cloud Platform, SQL, NoSQL
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1mo
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Founding Backend Engineer
New York City, New York, United States
OnsiteFull Time
Hera
Hera: Medicare-covered platform providing dedicated senior care coordination.
Experienced backend engineer with strong systems design, cloud and database experience, API and SDK development, security/compliance awareness, and ownership in early-stage environments.
AWS, SQL, APIs, SDKs
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