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589 software tool engineer jobs at 347 companies in Fairfield, CT

1mo
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Software Engineer
United States or Boston or New York City or Denver
$110k-$125k/yr RemoteFull Time
Spoiler Alert
Spoiler Alert: SaaS platform for managing and liquidating surplus food inventory.
2+ YOE2+ years professional software engineering experience; full‑stack web development using TypeScript, React, Express, and MongoDB; strong testing, collaboration, and productive use of AI coding tools.
TypeScript, React, Express, MongoDB
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1d
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Software Engineer
New York, New York, United States
$130k-$170k/yr HybridFull Time
Tower Research Capital
Tower Research Capital: Global quantitative trading firm developing automated algorithmic strategies.
3+ YOE3–5 years software engineering experience, strong Python and SQL skills, experience with data workflows/ETL, web/backend development, Linux/Git, debugging, and working with AI-enabled tools.
Python, SQL, Linux, Git, Vue.js, Docker, Kubernetes, GitLab CI/CD, Django, Flask, FastAPI, FPGA, Model Context Protocol (MCP), retrieval-augmented generation (RAG)
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5d
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Software Engineer
Boston or Chicago or New York City
OnsiteFull Time
Itero Group
Itero Group: Specialized consulting for digital transformation and data-driven business optimization.
7+ YOE7+ years software engineering experience; full-stack with TypeScript, React, Python; REST/GraphQL APIs; cloud (Azure/AWS/GCP); Git and CI/CD; AI-assisted tools; consulting and client-facing experience; bachelor's degree required.
TypeScript, React, Python, REST APIs, GraphQL, Azure, AWS, GCP, Git, CI/CD, Cursor, Copilot, Claude
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1d
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Principal Software Engineer
Santa Monica or Los Angeles or New York City or Bellevue or Seattle or San Francisco or Palo Alto
$235k-$414k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Provides visual messaging software and augmented reality wearable devices.
10+ YOE10+ years software development experience, technical leadership experience, BS in a technical field (or equivalent), experience architecting distributed systems, strong software design and debugging skills, proficiency using AI tools and modern engineering workflows.
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1w
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Senior Software Engineer - AI Tooling
San Francisco or New York City
$191k-$263k/yr HybridFull Time
Plaid
Plaid: Provides financial data connectivity and payment infrastructure via APIs.
5+ YOE5+ years professional software engineering experience; proven production systems experience; internal tools/platform building; strong product judgment; hands-on experience with AI development tools or agents.
Retool, Scaffold
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2d
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Sr Software Engineer
New York or California
$120k-$170k/yr RemoteFull Time
NBCUniversal
NBCUniversalNASDAQ: CMCSA: Produces and distributes entertainment content and theme park experiences.
5+ YOEBachelor’s in CS or related,5+ years software engineering experience,expertise in Python,LLM frameworks,AWS services,observability tools,REST and event-driven systems,excellent communication and problem-solving.
Python, LangGraph, LangSmith, LangFuse, Model Context Protocol (MCP), Lambda, ECS, S3, DynamoDB, API Gateway, Kinesis, Kafka, Docker, REST APIs
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4d
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Software Engineer Team Lead
Austin or New York or San Francisco or Seattle
$269k-$335k/yr OnsiteFull Time
Fluidstack
Fluidstack: Provides high-performance cloud GPU infrastructure for AI development.
Lead a small engineering team while remaining hands-on in production code; hire and grow engineers; build internal tools and operational software; make rapid prioritization decisions.
Go, TypeScript, Python
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1mo
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Senior Software Engineer
New York City, New York, United States
OnsiteFull Time
Mphasis
MphasisNational Stock Exchange of India: MPHASIS: Provides information technology and business process services.
3+ YOE3+ years software engineering experience; strong Python full-stack and REST API development; experience with GenAI, OpenShift, GCP, Autosys, CI/CD and frontend integration; proficiency with numerical libraries and data tools.
Python, FastAPI, Flask, Django, Autosys, OpenShift (OCP), GCP, Google AI Development Kit (ADK), NumPy, Pandas, PostgreSQL, S3, LangChain, LangGraph, LangSmith, React, Model Context Protocol (MCP)
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2mo
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Senior Software Engineer
New York City or Boston or San Francisco
$160k-$200k/yr RemoteFull Time
Roebling
Roebling: AI-native capital project planning platform for industrial infrastructure.
5+ YOE5–7 years shipping production software (startup scaling experience preferred), strong engineering fundamentals, end-to-end product instincts, and familiarity with AI-native agent tooling (Claude Code, Cursor) preferred.
React, Next.js, Redux, TailwindCSS, Vercel, FastAPI, PostgreSQL, Pydantic, Supabase, Claude Code, Cursor, Anthropic, Google model APIs, LangChain, LangGraph
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3mo
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Junior Software Engineer
New York, New York, United States
$90k-$170k/yr OnsiteFull Time
Rokt
Rokt: Provides AI-driven personalization for ecommerce transaction checkouts.
0+ YOEEntry-level software engineer role requiring foundational CS knowledge and willingness to learn across systems, data, and AI tools.
JavaScript, Python, AI tooling, Cloud platforms
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2mo
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Senior Software Engineer, Developer Experience
Bellevue or Livingston or New York or San Francisco or Sunnyvale
$165k-$242k/yr HybridFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
7+ YOESenior software engineer with 7+ years in production platforms, distributed systems, and developer tooling.
Go, Python, Kubernetes, GitHub Actions, Buildkite, Bazel, Artifactory, MCP
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1w
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Senior Software Engineer, Developer Productivity & Platform
United States or New York
$160k-$230k/yr HybridFull Time
nTop
nTop: Computational design software for high-performance engineering and manufacturing.
5+ YOE5+ years software engineering experience; strong Python, Go, or TypeScript skills; experience with LLM tooling, GitHub Actions, containerization, and cloud-based developer tooling.
Python, Go, TypeScript, Anthropic, GitHub Actions, Docker, Kubernetes, C++, CMake, Slack
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3w
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Software Engineer - Fullstack
New York City, New York, United States
$155k-$170k/yr HybridFull Time
Brigit
Brigit: Provides cash advances and tools to improve financial health.
4+ YOE4+ years software engineering experience; full‑stack ownership with React/React Native and TypeScript; backend experience in Java and Google Cloud; REST/API development; SQL; GraphQL, Kubernetes/Docker and AI tooling are pluses.
React, React Native, TypeScript, Java, Google Cloud, GraphQL, ES6, SQL, Kubernetes, Docker, HackerRank
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6d
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Software Engineer II
Uniondale or Austin or Atlanta or Grand Rapids
$100k-$150k/yr HybridFull Time
Acrisure
Acrisure: Provides AI-powered insurance, financial, and business risk solutions.
4+ YOE4+ years professional software engineering experience; strong Python or JavaScript/TypeScript; experience building APIs, integrations, testing, debugging, automation, and production support; comfortable using AI-assisted tools (Claude Code preferred).
Python, JavaScript, TypeScript, Claude Code
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1mo
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Lead Software Engineer
New York, New York, United States
$120k-$222k/yr HybridFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
8+ YOEBachelor’s degree in CS/IT; 8+ years software engineering; distributed systems; REST APIs; JavaScript/TypeScript; AWS; DevOps; AI tools.
Node.js, TypeScript, JavaScript, Express.js, NestJS, Fastify, Kafka, RabbitMQ, SNS/SQS, PostgreSQL, SQL Server, Aurora, DynamoDB, MongoDB, Redis, AWS, Azure, GCP, Terraform, Ansible, CI/CD, Cursor, Claude Code
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2mo
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Principal Software Engineer
Boulder or New York City
$200k-$240k/yr HybridFull Time
Sovrn
Sovrn: Provides software and data tools for digital publishers to monetize.
10+ YOE10+ years software engineering; 5+ years adtech infrastructure; backend focus; experience with AI tooling; distributed systems; OpenRTB knowledge.
Java, Kafka, Redpanda, AWS, Databricks, Datadog, ONYX
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1mo
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Senior Software Engineer
New York City, New York, United States
HybridFull Time
Nomic
Nomic: AI platform for architecture, engineering, and construction workflows.
5+ YOE5+ years professional software engineering; strong full-stack skills with Python and TypeScript; React experience; active use of AI coding tools (Cursor, Claude Code, Copilot); strong API, data modeling, and architecture skills.
Python, TypeScript, React, Cursor, Claude Code, Copilot
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1mo
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Staff Software Engineer
Brooklyn or Waltham
$151k-$190k/yr HybridFull Time
National Grid
National GridLondon Stock Exchange: NG: Operates electricity and natural gas transmission and distribution networks.
8+ YOE8+ years in software development focused on systems integration/platform engineering; hands-on Azure, Python, PowerShell, .NET Core, PostgreSQL, Kafka/RabbitMQ, Terraform, Ansible, CI/CD, and observability tooling; strong collaboration and communication skills.
DERMS, Azure, Azure Arc, Azure DevOps, Python, PowerShell, PowerShell DSC, .NET Core, PostgreSQL, Kafka, RabbitMQ, GitHub Actions, Terraform, Bicep, ARM templates, Ansible, VMware vSphere, Hyper-V, Loki, Grafana, Tempo, Mimir, OpenTelemetry, Promtail, Alloy, RESTful, GraphQL, gRPC, AQMP, Private Link, VNets, NSGs
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2mo
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Staff Software Engineer
Oakland or Atlanta or New York
$107k-$200k/yr HybridFull Time
SiriusXM
SiriusXMNASDAQ: SIRI: Audio entertainment providing satellite and streaming services.
8+ YOE8+ years of software engineering; Python (Django/FastAPI), backend and distributed systems; AWS, Kubernetes; observability tools; degree or equivalent experience; eligible to work in the U.S.
Python, Django, FastAPI, AWS, Kubernetes, Datadog, Sentry, Grafana, Kafka, Airflow, Celery, Google Ad Manager
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3w
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Software Engineer, Services Platform
San Francisco or New York
OnsiteFull Time
Cursor
Cursor: AI-powered code editor for professional software developers.
Experience building internal developer platforms, durable workflow orchestration (Temporal preferred), deployment tooling/CI-CD, service ownership, and strong software engineering fundamentals.
Temporal, CI/CD
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