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interop.io

JavaScript Consultant

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Fully Remote - Fullstack Development Fully Remote

The job listing is published in the following categories

Fullstack Development 130 JavaScript 226 Node.js 42 React 100
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    Tech Stack / Requirements

    We’re looking for a web-savvy JavaScript Consultant to join the interop.io Consulting Team. This unique role blends hands-on JavaScript development and full-stack exposure with client-facing consulting. In this role you’ll  lead and coach clients to deliver interoperable software solutions using our io.Connect Software Platform Suite.

    If you’re a technically skilled, outgoing professional who thrives in fast-paced, client-focused environments—and you’re passionate about solving complex B2B challenges, especially in capital markets, this role is tailored for you!

    In this role you will:

    • Develop and prototype JavaScript/interop-based solutions, including proof-of-concepts, to address client use cases and workflows.
    • Advise clients on technical strategy, architecture, and implementation of interoperable systems using modern web frameworks.
    • Collaborate with clients’ teams to assess needs, lead projects, coach developers, and ultimately align businesses with IT.
    • Assist clients in the building and maintenance of complex front-end applications, such as dashboards and interactive platforms, for professional users.
    • Liaise with internal teams (Product Engineering, Sales, Support, Client Success) to ensure project success.
    • Deliver presentations and engage in live client interactions, improvising as needed to address challenges.

    Your profile:

    • 5+ years of experience in front-end or full-stack development including modern JavaScript (ES6+).
    • Hands-on experience with JavaScript frameworks (preferably React), including responsive design, state management, and component testing.
    • Familiarity with TypeScript or other programming languages (e.g., .NET, Java, Python, C++).
    • Proficiency with asynchronous programming (Promises, async/await), Node.js, and version control systems (e.g., Git).
    • Experience in enterprise environments with established mechanisms for governance, CICD, and other systematic approaches for managing horizontal scale.
    • Experience in technical consulting, solutions architecture, or B2B presales/account management.
    • Established skills in discovery, design thinking, or business analysis.
    • Strong client-facing experience with excellent verbal and written English fluency.
    • Willingness to work during U.S. Eastern Time (ET) business hours.
    • Background in capital markets, institutional trading, or financial services technology would be considered as a plus.

    We offer:

    • Market-leading salary
    • The freedom to work from home or the office
    • Performance bonuses
    • 25 days off with up to 8 extra bonus days paid annual holiday
    • Premium healthcare and dental package.
    • Co-funded Multisport card
    • Food vouchers
    • Access to an employee Well-being program
    • Long-term employee value distribution scheme (LEVD)
    • Modern office space at Campus X, recreation zones, and a spacious rooftop terrace
    • Generous refer-a-friend program
    • Experienced, skilled and friendly teammates

    About interop.io

    interop.io is a software infrastructure company delivering technology solutions to some of the largest financial institutions in the world.

    interop.io was formed in June 2023 through the merger of Finsemble and Glue42 to create a global powerhouse driving application interoperability in capital markets and beyond. interop.io brings together the award-winning technologies of both companies to offer a suite desktop and browser products.

    At the core is io.Connect, which enables clients to build and deploy highly intuitive front ends that bring different applications and functionality into a single, harmonized smart desktop. In this way, the boundaries between different applications are dissolved, and users are free to focus on higher-value tasks.

    The company employs over 120 people, including R&D and implementation engineers located in New York, Charlottesville, London, and Sofia.
    Submit your application