788 backend software engineer jobs at 431 companies in Cresskill, NJ
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Backend Software Engineer - Saga
New York or Seattle or Arlington or Rosslyn
OnsiteFull Time
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.
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.
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.
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Mexico City or Miami or New York City or Ottawa or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Toronto or Vancouver or Washington, D.C.
$104k-$187k/yrHybridFull Time
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
4+ YOE4+ years as a software engineer; backend/data pipelines; comfortable with messy data; proficient in Ruby, Python, or Go; AWS experience; SQL; collaborative and communicative.
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.
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.
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
Beast Industries: Produces digital media and consumer goods for MrBeast brands.
7+ YOE7+ years software engineering with heavy backend/distributed-systems responsibility; experience owning reliability, incident response, APIs, databases, cloud-native architectures, and using AI coding agents.
Giv'atayim or Tel Aviv or New York City or London or Singapore or São Paulo
HybridFull Time
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).
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
Backend Software Engineer - Assistant Vice President
Greenwich or New York City
$130k-$170k/yrHybridFull Time
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.
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.
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.
X, The Moonshot FactoryNASDAQ: GOOGL: Develops early-stage technologies and experimental projects.
5+ YOEBachelor's in CS or related,5+ years building enterprise backend systems,proficiency in Java/Kotlin or Golang,experience with microservices,streaming,Cloud SQL,monitoring,security,and stakeholder collaboration.
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.
Town: AI-powered productivity assistant that automates workplace workflows.
Experienced backend engineer with production experience scaling distributed systems, LLM/agent infrastructure, workflow orchestration, and defining technical direction in fast-moving startups.
Gen Digital: Provides cybersecurity, identity protection, and online privacy software solutions.
4+ YOESenior backend engineer with 4+ years of experience, strong Python/Django or similar OOP experience, relational and non-relational databases, RESTful APIs, and containerization (Docker/Kubernetes).
Book of the Month: Monthly subscription service delivering curated new hardcover books.
6+ YOE6+ years building production backend services with Node.js and TypeScript, relational DB modeling (MySQL/Postgres), REST APIs, test suites, and SQL/DB performance optimization.
Moonshot: Mobile application for on-chain cryptocurrency trading.
5+ YOE5+ years backend/platform engineering experience building high-scale, highly available systems; deep expertise in auth, financial systems, or blockchain infrastructure; strong distributed-systems and operational skills.
Flutter, React Native, React, Go, Rust, Solana, Google Cloud, Amazon Web Services