Senior Full Stack Engineer – Backend Leaning

G2i Inc.

Backend Engineer responsible for building and scaling financial products at a fintech startup. Focused on AI-assisted development and high-quality standards while owning systems end-to-end.

Posted 6/18/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $150,000 - $250,000 per yearWebsite

Tech Stack

Tools & technologies

AWSNode.jsTypeScript

About the role

Key responsibilities & impact

Own backend systems and infrastructure end-to-end, from design through deployment and scaling
Build performant, reliable APIs and services that power core financial products
Design and implement scalable architectures on AWS using Node (TypeScript)
Make pragmatic tradeoffs between speed, reliability, scalability, and maintainability
Ship production code frequently while maintaining high quality standards
Help establish technical patterns and best practices for the engineering team
Interface effectively with product engineers and other stakeholders

Requirements

What you’ll need

Bachelor's degree in Computer Science or a related technical field
5+ years of professional software engineering experience, with a significant backend focus
Experience building and scaling production systems with Node and AWS
Proficiency with TypeScript strongly preferred
Track record of delivering reliable, performant systems at scale
Systems-oriented mindset with a deep focus on performance, reliability, and scalability
Strong sense of ownership and accountability for system outcomes
Comfortable thinking critically about architectural decisions and their long-term implications
Thrives in ambiguity and can make sound technical decisions with incomplete information
Self-starter who can work independently and drive projects to completion
Embraces AI-assisted development to accelerate output while maintaining high code quality

Benefits

Comp & perks

High ownership with minimal bureaucracy
A fast-moving environment where roles and priorities evolve quickly
An intense pace of execution and growth — this is not a 9-to-5, work-life-balance-optimized role
Speed, learning, and impact as core values

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

NodeTypeScriptAPI developmentscalable architectureproduction systemsperformance optimizationreliability engineeringsoftware engineeringbackend developmentcode quality

Soft Skills

ownershipaccountabilitycritical thinkingdecision makingindependenceproject managementadaptabilitycommunicationcollaborationproblem solving

Certifications

Bachelor's degree in Computer Sciencerelated technical field