Senior Full-Stack Engineer | Founding EngineerRampartCyber • Durham, US

Senior Full-Stack Engineer | Founding Engineer

RampartCyber • Durham, US

30+ days ago

Job type

Full-time

Job description

About the Company

We are an early-stage U.S.-based SaaS startup, currently a very small founding team building our first suite of applications.
This role is critical to the company’s technical foundation.
You will be among the earliest engineers and will take full ownership of building Version 1 of our product from scratch.
This is true greenfield development. No codebase exists yet —
You will design and build everything end-to-end and play a direct role in shaping the product architecture, engineering practices, and long-term technical direction.
If you thrive in environments where you can make high-impact decisions, work independently without supervision, and own the entire technical delivery, this role is for you.

Job Description

We are seeking a highly skilled Senior Full-Stack Software Engineer (10–15 years experience) who can independently build a complete SaaS product end to end.

This is a hands-on role where you will architect, design, implement, and deliver features across the stack with minimal guidance.

You must be comfortable working in an early-stage startup, taking ownership of complex problems, making architectural decisions, and producing high-quality software quickly.

You may also lead and guide a small team of engineers as we grow.

Responsibilities

Build Version 1 of our SaaS applications from scratch (greenfield development).

Architect, design, and implement backend services, APIs, and microservices.

Develop front-end interfaces using modern JavaScript frameworks (React, Angular).

Own end-to-end feature delivery : requirements, design, development, testing, deployment.

Work independently with zero micromanagement; solve problems on your own.

Make core architectural decisions and help shape the engineering foundation.

Collaborate directly with founders on product design, roadmap, and priorities.

Lead and mentor a small engineering team as the company scales.

Ensure high code quality, reliability, and strong engineering best practices.

Troubleshoot performance, scalability, and system-level challenges.

Take full ownership of the Features you build and its success.

Fast paced iterations based on Customer Feedback

Job Requirements

Experience & Ownership

10–15 years of professional software engineering experience.

Proven ability to build products end-to-end independently.

Experience leading a small engineering team (optional but valuable).

Strong experience working in early-stage or fast-paced startup environments.

Ability to operate without supervision — full ownership mentality.

Excellent communication, problem-solving, and decision-making skills.

Full-Stack Technical Skills

Backend (Required – Multiple Stacks, Not Just One)

You must be proficient in several backend stacks , specifically :

C# / .NET

Node.js

Python

Strong understanding of REST APIs, microservices, and distributed systems.

Experience with relational and NoSQL databases :

SQL Server, Oracle

MongoDB or similar

Frontend (Required)

Strong hands-on experience with modern JavaScript frameworks.

Proficiency in React and Angular is required.

Solid understanding of component-based architecture, state management, and responsive UI.

Other Skills

Strong architectural thinking and problem-solving abilities.

Ability to independently build scalable, maintainable systems end to end.

Comfortable taking ownership of the full engineering lifecycle.

Ability to work full-time remotely with a startup mindset.

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Founding Engineer • Durham, US

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