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

Senior Full-Stack Engineer | Founding Engineer

RampartCyber • Durham, US
[job_card.variable_days_ago]
[job_preview.job_type]
  • [job_card.full_time]
[job_card.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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