WebSocket jobs in Norwalk, CT

React/WebSocket Fullstack Architect/Engineer

Remote

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20d ago

Senior Full-Stack Developer (TypeScript/React) Remote - New York, NY We need someone who can own the development from end to end, so a Hands on Architect comfortable in a smaller environment(Start Up). About Company Company is building a modern automated marketplace for fixed income trading. Our mission is to evolve the standards of fixed income trading through technology and collaboration. Founded in response to the rise of algorithmic liquidity in fixed income, Company launched its marketplace

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Full-time

Depends on Experience

Sr Software Developer

Greenwich, Connecticut

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Today

Company Overview Interactive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment. IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories.

Full-time

Sr Software Developer - Trading Platform

Greenwich, Connecticut

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Today

About the Company Interactive Brokers Group, Inc. (NASDAQ: IBKR), a member of the S&P 500, is a global financial services company headquartered in Greenwich, Connecticut, with offices in over 15 countries. Through its affiliates, Interactive Brokers provides automated trade execution and custody of securities, commodities, foreign exchange, and prediction markets on over 170 markets in numerous countries and currencies. For more than four decades, Interactive Brokers has focused on technology,

Full-time

Senior Network Engineer/Finance/NYC Local Remote

Remote or Weehawken Township, New Jersey

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Today

Our client is a fast-growing data company specializing in low-latency APIs that deliver high-speed options and stocks data to financial markets. Their platform handles billions of database requests daily, tackling some of the most complex tick-level options data challenges in the industry. They are looking for a hands-on, senior Network Engineer to join their team on a full-time basis. This is a senior individual contributor role with direct impact: you'll own the design, deployment, and day-to-

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Full-time

$150000 - $180000

Staff Software Engineer

Norwalk, Connecticut

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Today

Job Description Role Summary: The Staff Software Engineer will be a high-velocity full-stack builder for the new Product Engineering team, predominantly focused on delivering elite frontend interfaces while possessing the backend capability to ship end-to-end features. This is a 100% builder role meant for an engineer who excels at bridging complex data structures with resilient, highly secure user experiences. You will own the implementation of real-time UI components built predominantly usin

Full-time

USD 112,680.00 - 168,920.00 per year

Software Engineer, Foundations

Remote or New York, New York

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Today

About the team The Foundations team builds and evolves the application-level infrastructure that powers Hex. We own the shared backend systems, frameworks, and primitives that other teams depend on-helping the company move faster while maintaining reliability, performance, and security. Our work spans APIs, realtime transport, storage frameworks, background processing, and internal tooling. Rather than shipping isolated features, we focus on creating durable systems that scale with the company

Full-time

USD 198,750.00 - 265,000.00 per year

Software Engineer, Full Stack (Remote)

Remote or Hoboken, New Jersey

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Today

Job Title: Software Engineer, Full Stack Location: Remote Division: Technology Department: Engineering About Us Quantum Computing Inc. (QCi) (Nasdaq: QUBT) is an innovative, integrated photonics company that provides accessible and affordable quantum machines to the world today. We are the pioneers of Entropy Quantum Computing (EQC), utilizing open quantum systems to solve NP-hard optimization problems. The Company's portfolio offers unique capabilities in high-performance computing, artific

Full-time

Senior Full-Stack Engineer

Remote

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Today

We are embarking on an exciting initiative to redefine how our enterprise visualizes, understands, and discovers its internal platform capabilities. We are evolving our existing platform from a static, generated catalog into a live, AI-enriched capability map. This dynamic ecosystem will power interactive chatbot experiences, provide strategic roadmap insights, perform automated gap analyses, and generate graph-oriented knowledge outputs. As a Software Engineer on this team, you will work at the

Full-time

Remote Frontend Engineer / React / WebGL / 3D

Remote

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Today

A growing sports technology company is seeking a full-time WebGL Front End Developer to help build next-generation race tracking and analytics products. This position focuses on creating highly interactive visualization experiences using TypeScript, modern frontend frameworks, and advanced browser rendering technologies. Engineers will work on applications that process real-time telemetry and geospatial data, transforming complex information into intuitive user experiences for athletes and coach

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Contract

$60 - $70

Complex Ui React Developer (USC)

Remote

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4d ago

Position: Complex UI React Developer Location: Remote Job Overview We are seeking an experienced React Developer with strong expertise in building complex, scalable, and highly interactive user interfaces. The ideal candidate should have hands-on experience with React, Redux, WebSockets, and AI-powered applications, along with a strong portfolio demonstrating modern UI development. Key Responsibilities Design and develop complex, responsive, and reusable UI components using React.js.Build scalab

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Contract, Third Party

$60 - $70

Software Engineer

Remote or Aurora, Colorado

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Today

Job Title Software Engineer Overview EverWatch is a government solutions company providing advanced defense, intelligence, and deployed support to our country's most critical missions. We are a full-service government solutions company. Harnessing the most advanced technology and solutions, we strengthen defenses and control environments to preserve continuity and ensure mission success. EverWatch employees are focused on tackling the most difficult challenges of the US Government. We offer

Full-time

USD 72.12 - 84.14 per hour

Sr. Software Engineer I, Evaluation Services

Remote or Chicago, Illinois

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Today

Disclaimer: Please be advised that the most accurate and up-to-date information about our open roles-including job descriptions, compensation, and benefits-can only be guaranteed on our official job board. For the latest listings and details, please visit: ;br> JOIN US ON OUR MISSION TO BECOME THE #1 RETAIL TRADING PLATFORM IN THE WORLD Welcome to the dynamic world of NinjaTrader! As an industry-leading trading platform and futures broker, we're empowering traders to take control of their finan

Full-time

USD 125,000.00 - 175,000.00 per year

Senior Software Engineer, Predictions (Mobile)

Remote or New York, New York

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Today

About the Company Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater ch

Full-time

USD 140,000.00 - 200,000.00 per year

Sr. Mobile Engineer I

Remote or Chicago, Illinois

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Today

Full-time

USD 125,000.00 - 175,000.00 per year

Senior Software Engineer iOS

Remote or Texas

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Today

We're building a world of health around every individual - shaping a more connected, convenient and compassionate health experience. At CVS Health , you'll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger - helping to simplify health care one person, one family and one community at a time. Position Summary We are seeking a Senior Software Engin

Full-time

USD 92,700.00 - 185,400.00 per year

Sr. Machine Learning Engineer

Remote or Santa Barbara, California

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Today

Description Hi, We're AppFolio We're innovators, changemakers, and collaborators. We're more than just a software company - we're building the AI-native platform where the real estate industry comes to do business. We're transforming Property Management; how property managers operate, how residents live, and how intelligence flows across an entire industry. Realm-X is AppFolio's AI-native platform powering this transformation. It enables a new generation of intelligent capabilities across our

Full-time

USD 167,200.00 - 209,000.00 per year

Software Engineer - Market Data

Remote

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Today

Who We Are: Alpaca is a US-headquartered, global leader in agent-first brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, 24/5 trading, and more. Amongst our subsidiaries, Alpaca is a licensed financial services company, serving hundreds of financial institutions across 40 countries with our institutional-grade APIs. This includes broker-dealers, investment advisors, wealth managers, hedge funds, and crypto exchanges, totalling over 10 million brokerage accounts. Our gl

Full-time

Backend AI Engineer - Remote

Remote or San Diego, California

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Today

Genesis10 is currently seeking a Backend AI Engineer - Remote for a contract position with a Global Medical Technology Company located in San Diego, CA. This is a 12+ month contract opportunity. This position is 100% remote. Compensation: $43.00 - $53.00 per hour, W2, based on qualifications Position Overview: This role focuses on developing and implementing generative AI solutions, including building robust RAG pipelines, fine-tuning LLMs, and creating high-performance APIs. The ideal candidat

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Full-time

Compensation information provided in the description

Senior Asset Development Engineer

Remote

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Today

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. Our Professional Services development team is growing, and we are see

Full-time

USD 114,500.00 per year

AI Software Engineer

Remote or Virginia

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Today

Company Description Oteemo is an industry-leading technology consulting firm at the forefront of cloud native, enterprise DevSecOps, and AI-driven transformation. We build intelligent, automated, secure systems for organizations tackling their toughest technical challenges and we're pushing the boundaries of what AI, generative AI, and agentic systems can do in production, not just in theory. Join us and you'll work alongside recognized experts on cutting-edge projects that blend cloud native a

Full-time

WebSocket jobs in Norwalk, CT, USA