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946 backend software developer jobs at 472 companies in Norwalk, CT

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
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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3w
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Backend Software Engineer
New York City, New York, United States
$90k-$150k/yr OnsiteFull Time
Book of the Month
Book of the Month: Monthly subscription service delivering curated new hardcover books.
2+ YOE2+ years building production backend services with JavaScript/TypeScript and Node.js, experience with MySQL/PostgreSQL, automated testing, React/Next.js exposure, Snowflake and data pipelines, strong communication and problem-solving.
Node.js, JavaScript, TypeScript, MySQL, PostgreSQL, Snowflake, React, Next.js
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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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1w
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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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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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2mo
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Backend Engineer
New York City, New York, United States
$140k-$190k/yr OnsiteFull Time
Sheer Health
Sheer Health: A New York City-based delivering healthcare experiences through technology and data analytics.
3+ YOE3+ years full-stack software engineering; strong NodeJS; Go/Java backend; web tech; browser automation with Playwright/Puppeteer; in-office NYC Mon-Thu; strong problem-solving and communication.
NodeJS, Go, Java, JavaScript, TypeScript, HTML, CSS, Playwright, Puppeteer
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2mo
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Software Engineer (Backend), Content Foundations
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/yr HybridFull Time
Scribd
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.
Ruby, Python, Go, AWS, S3, SQS, SNS, SQL
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1mo
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Staff Backend Software Engineer - Portfolio Data Workflows
Edinburgh or New York City or Salt Lake City or London or Pune or Dubai or Geneva or São Paulo
OnsiteFull Time
Addepar
Addepar: Provides a data platform for wealth management and portfolio reporting.
Extensive backend development experience building API services and distributed systems; deep knowledge of software design patterns, REST, Java, SQL, and AWS; technical leadership and mentoring experience; demonstrable AI usage experience.
Java, SQL, AWS, Elasticsearch, REST
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3mo
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Staff+ Software Engineer, Backend
San Francisco or New York City or Seattle
$405k-$485k/yr OnsiteFull Time
Anthropic
Anthropic: Developing safe and reliable artificial intelligence systems.
8+ years backend or product engineering; lead multi-month projects; distributed systems; API design; cloud infra; strong cross-team communication.
API design, Distributed systems, Cloud infrastructure, Backend programming
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3mo
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Senior Software Engineer, Backend
New York, New York, United States
$185k-$215k/yr HybridFull Time
Fubo
FuboNYSE: FUBO: Live TV streaming platform with a focus on sports.
7+ YOE7+ years backend development; Go or similar strongly-typed language; cloud infrastructure (GCP); Docker and Kubernetes; ability to work in NYC hybrid; collaborate across teams; design scalable APIs; focus on quality.
Go, Google Cloud, Docker, Kubernetes
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1mo
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Senior Backend Developer
Yerevan or New York City or Israel or Ukraine or Armenia
RemoteFull Time
Commit
Commit: End-to-end software, cloud, and cybersecurity consulting and development.
5+ YOE5+ years backend development (Python, JavaScript), building and operating production SaaS services, designing scalable architectures and data pipelines, driving projects end-to-end, and using AI/LLMs in development workflows.
Python, JavaScript, AI/LLMs, GenAI, Active ASPM
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2mo
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Sr. Backend Software Engineer (Video Engineering)
San Francisco or Brooklyn or Cambridge or United States
$150k-$235k/yr RemoteFull Time
Philo
Philo: A subscription-based live and on-demand television streaming service.
8+ YOE8+ years software development; Golang/Java/C++; distributed systems; cloud (Docker/Kubernetes); RESTful services; data handling; agile methods; video/streaming experience preferred.
Golang, Java, C++, Docker, Kubernetes, REST, FFmpeg, AWS Elemental, Azure Media Services
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3mo
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Senior Backend Software Engineer
Cambridge or New York
$150k-$225k/yr OnsiteFull Time
S&P Global
S&P GlobalNYSE: SPGI: Provides financial data, analytics, and credit ratings worldwide.
5+ YOEFive+ years' experience building customer-facing APIs; RESTful API design; strong communication; full software lifecycle; knowledge of algorithms and data structures.
Python, Flask, FastAPI, Django REST Framework, PostgreSQL, Celery, RabbitMQ, Redis, Kafka, Jsonnet, Claude Code, Codex, Cline, AWS, EKS, Sentry, Prometheus, Git, Jenkins, GitHub Actions
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1mo
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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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3mo
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Backend Engineer
New York, New York, United States
$160k-$215k/yr OnsiteFull Time
Treeswift
Treeswift: Provides AI-augmented vegetation management and asset monitoring for utilities.
7+ YOE7+ years backend engineering experience; Python/Django or similar; PostgreSQL with geospatial queries; Docker, Kubernetes, AWS; OAuth2/OIDC/JWT; strong cross-functional communication.
Python, Django, PostgreSQL, PostGIS, Kubernetes, AWS, Docker, OpenAPI, Terraform, OpenTofu, CI/CD
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3mo
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Senior Backend Software Engineer - Application Development
New York, New York, United States
$135k-$200k/yr HybridFull Time
Palantir
PalantirNasdaq: PLTR: Developing software platforms for data integration and analytics.
6+ YOE6+ years backend development; API design; distributed systems; CS/Math/Engineering background; proficient in Java/C++/Python/Rust/Go; strong communication.
Java, C++, Python, Rust, Go, Kafka, Cassandra, Elasticsearch, Spark, Docker, Kubernetes, Gradle, GitHub
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1w
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Senior Staff Backend Software Engineer-NYC
Mountain View or New York City
$262k-$369k/yr HybridFull Time
X, The Moonshot Factory
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.
Java, Kotlin, Golang, RESTful APIs, gRPC, Cloud SQL, PostgreSQL, MySQL, Prometheus, Grafana, GCP Cloud Monitoring, Google Cloud Platform, AWS, Azure, Angular
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3mo
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Backend Engineer, Platform
New York City, New York, United States
OnsiteFull Time
Equall
Equall: A legal tech delivering infrastructure for private markets and legal state management.
Build and maintain backend infrastructure, CI/CD, security, and observability on Kubernetes using AWS/GCP; focus on multi-tenant SaaS and developer experience.
Kubernetes, Istio, ArgoCD, Depot, PostgreSQL, Redis, Neo4j, Python, AWS, GCP, Datadog
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2mo
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Senior Staff Backend Software Engineer-NYC
New York City, New York, United States
$262k-$369k/yr HybridFull Time
Alphabet
AlphabetNASDAQ: GOOGL: Holding providing internet, software, and AI services.
5+ YOEBachelor's in CS or related, 5+ years building enterprise backend systems, proficiency in Java/Kotlin or Golang, microservices, REST/gRPC, Cloud SQL, logging/monitoring, and strong communication/problem solving.
Java, Kotlin, Golang, RESTful APIs, gRPC, Cloud SQL (PostgreSQL/MySQL), Prometheus, Grafana, GCP cloud monitoring, Google Cloud Platform (GCP), AWS, Azure, Angular
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1mo
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Senior Backend Engineer
San Francisco or New York City
HybridFull Time
Beast Industries
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.
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