Have an App Idea?

Create an account on EasyMate to brainstorm your idea with AI.

Powered by EasyMate.ai

Senior Full Stack Developer JD - Real-Time Data & API Integration

  • Job Title: Senior Full Stack Developer JD - Real-Time Data & API Integration
  • Location: Remote — Central or South America
  • Job Type: Remote, Full-time
  • About Us: AgilityIO is a software development firm that designs and builds custom applications for startups and Fortune 500 companies. We are a global team of over 400 developers, QA engineers, project managers, and UX/UI designers with offices in New York City and Vietnam.
  • We’re looking for a versatile Senior Full Stack Developer to join our team and help build intuitive front-end experiences and scalable backend systems. This role is ideal for someone who enjoys working across the stack with a strong emphasis on real-time data, modern frameworks, and API integrations.

  • Job Responsibilities

    • Design, develop, and deploy full-stack applications from user interface to backend services
    • Ship new features using React/Next.js (TypeScript) and Python/FastAPI with Postgres and Redis
    • Design scalable APIs, caching strategies, and data models; write clear, well-tested code and review pull requests
    • Integrate with third-party services such as Clerk, Stripe, PostHog, and Sentry
    • Improve existing features, from report APIs to performance optimization for live streaming market data
    • Contribute to infrastructure and DevOps, including CI/CD and reliability efforts
    • Collaborate closely with designers, CTO, and CEO (acting as Product Manager)
    • Lead work on the new AI-powered report generation tool

  • Qualifications & Experience

    • Proficient in React/Next.js (TypeScript), Python/FastAPI
    • Strong experience with PostgreSQL, Redis (for caching, queues, and streaming), and time-series databases
    • Experience with SSE/WebSockets and task runners like Celery
    • Skilled in database schema design, tuning, and query optimization
    • Familiarity with analytics and monitoring platforms such as Google Analytics, PostHog, and Sentry
    • Hands-on experience with DevOps tooling such as GitHub Actions

  • Preferred Qualifications

    • Comfortable working in a fast-paced, product-driven organization with high autonomy
    • Excellent communication skills; self-directed and a fast learner
    • Experience with live streaming and real-time data systems
    • Familiarity with component libraries like Tailwind and Shadcn
    • Exposure to event-driven architectures and performance optimization

  • What We Offer

    • Competitive salary and performance-based bonuses.
    • Remote work arrangements
    • Career development opportunities and mentorship.
    • A collaborative, forward-thinking team culture.

  • Ready to Make an Impact?

    • If you’re passionate about both frontend and backend development and thrive in a dynamic, product-focused environment, we’d love to hear from you. Apply by emailing your resume to careers@agilityio.com.