Senior Full-Stack Engineer

Location: Scottsdale, AZ

Full-time: $140,000 - $180,000 (Annual Salary)

About Us

We are a fast-growing, mission-driven fintech startup building innovative solutions to transform financial services. We are looking for a Senior Full-Stack Engineer with a strong focus on data integration and AI capabilities. This is an exciting opportunity to lead both development and data initiatives within a dynamic, highly collaborative environment. You will play a critical role in shaping the technical strategy, enhancing our platform with data-driven intelligence, and mentoring team members to deliver scalable, maintainable software.

Role Overview

As a Senior Full-Stack Engineer, you will be responsible for the architecture, development, and integration of data analytics and machine learning models into our platform. You will collaborate closely with cross-functional teams to deliver high-performance software while guiding technical decisions and best practices. This role requires a balance of leadership, software craftsmanship, and expertise in data engineering.

Key Responsibilities

  • Technical Leadership: Provide guidance on technical architecture, design decisions, and best practices across the stack. Lead initiatives to integrate AI and data capabilities into our fintech platform.

  • Software Development: Design, develop, test, and deploy scalable full-stack applications using modern technologies and frameworks.

  • Data & AI Integration: Collaborate with data scientists to productionalize machine learning models and ensure efficient data pipelines.

  • System Optimization: Identify performance bottlenecks and implement solutions to improve software reliability, scalability, and maintainability.

  • Code Quality & Collaboration: Participate in code reviews, mentor junior engineers, and promote a culture of continuous improvement.

  • Technical Problem-Solving: Address complex technical challenges by providing innovative and sustainable solutions.

  • Continuous Learning: Stay informed about emerging technologies in AI, fintech, and software development, driving opportunities for platform innovation.

Qualifications & Skills

  • Experience:

    • 7+ years of experience as a Full-Stack Engineer or similar role, with at least 2 years in a senior or lead capacity.

    • Proven experience developing large-scale, data-driven applications in production.

  • Technical Expertise:

    • Proficiency in front-end and back-end technologies, including JavaScript (React, Vue, Solid.JS), Node.js, Python, GO, and cloud-based platforms (AWS, or GCP).

    • Strong understanding of software design patterns, data structures, and algorithms.

    • Experience working with databases (e.g., PostgreSQL, MongoDB) and scalable architecture (microservices, serverless).

    • Familiarity with machine learning frameworks (e.g., TensorFlow, PyTorch, scikit-learn) and data visualization libraries.

    • Hands-on experience with data pipelines, ETL processes, and API integrations.

  • Project Leadership:

    • Strong project management skills, capable of leading complex technical projects from concept to deployment.

    • Experience collaborating with cross-functional teams including data science, product, and design.

  • DevOps & Infrastructure:

    • Experience with CI/CD pipelines, version control (Git), containerization (Docker), and infrastructure as code (e.g., Terraform).

  • Other Skills:

    • Strong analytical, problem-solving, and decision-making skills.

    • Excellent communication and interpersonal skills with the ability to explain technical concepts to non-technical stakeholders.

Preferred Qualifications

  • Experience in fintech or financial services platforms.

  • Understanding of data privacy, security, and regulatory compliance (e.g., GDPR, PCI DSS).

  • Technical certifications (AWS Solutions Architect, Certified Kubernetes Administrator, or similar).



Preferred Skills:

  • DevOps
  • Machine Learning
  • Leadership
  • Cloud Services
  • Data Privacy
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