Senior Full Stack Software Engineer

Mariana Minerals; San Francisco (CA); On-site; USD 150,000 - 220,000; Full time

Job summary

A minerals technology company is seeking a Senior Full Stack Software Engineer to lead technical initiatives in the critical minerals supply chain. The role involves architecting and delivering software systems that support energy transition. The ideal candidate has over 5 years of experience, deep full stack expertise, and strong leadership skills, including mentoring junior engineers. This position offers a competitive salary ranging from $150K to $220K annually.

Qualifications

• 5+ years of professional software engineering experience delivering complex systems.
• Deep expertise across the full stack.
• Proven leadership experience driving cross-functional initiatives.

Responsibilities

• Lead the technical design and architecture of internal software tools.
• Architect and implement complex data integrations with engineering tools.
• Mentor junior engineers and establish best practices.

Skills

Full stack software engineering

Architectural decisions

Data integration

Web applications development

Mentoring team members

DevOps practices

Tools

React

Node.js

AWS

Python

GCP

Job description

About Mariana Minerals

Mariana Minerals is a software‑first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data‑driven decision‑making. Join us as we build the future of responsible mineral sourcing and supply.

Role Overview

Mariana Minerals is looking for an experienced Senior Full Stack Software Engineer to lead critical technical initiatives in building the next‑generation critical minerals supply chain to support the world’s energy transition. As a Senior Full Stack Software Engineer, you will architect, lead, and deliver software systems that accelerate the engineering and construction of physical infrastructure critical to building the minerals supply chain. You will drive technical strategy, mentor team members, and own end‑to‑end delivery of complex systems.

What You’ll Do

• Lead the technical design and architecture of internal software tools, ensuring scalability, reliability, and maintainability while working closely with engineering, construction, and operations teams.
• Architect and implement complex data integrations with enterprise engineering/construction tools such as Autodesk, establishing best practices for API design and data synchronization.
• Drive the development of sophisticated web applications and platforms used by internal teams and partners, making key technical decisions on frameworks, infrastructure, and deployment strategies.
• Conduct thorough technical evaluations of third‑party software solutions, providing strategic recommendations on build‑vs‑buy decisions and integration approaches.
• Lead cross‑functional initiatives with ML engineers to design and implement production‑ready ML, RL, and LLM‑powered features, ensuring robust error handling and scalable architecture.
• Mentor junior engineers, conduct code reviews, and establish engineering best practices across the team.
• Participate in technical strategy discussions and contribute to long‑term technology roadmap planning.
• Own production reliability and performance optimization for critical systems.

What You’ll Bring

• 5+ years of professional software engineering experience with a proven track record of delivering complex, production systems.
• Deep expertise across the full stack, with demonstrated ability to make architectural decisions spanning frontend frameworks, backend services, databases, and cloud infrastructure.
• Strong experience translating business requirements from non‑technical stakeholders into robust technical solutions, with the ability to communicate complex technical concepts clearly.
• Proven leadership experience, whether through formal management, technical lead roles, or driving cross‑functional initiatives.
• Excellence in system design and architecture, with experience in distributed systems, microservices, and event‑driven architectures.
• Track record of working in ambiguous, fast‑paced environments and bringing structure to complex technical challenges.
• Experience with modern web frameworks (React/Vue), backend technologies (Node.js/Python/Go), and cloud platforms (AWS/GCP).
• Strong understanding of DevOps practices, CI/CD pipelines, and infrastructure as code.
• Experience with data engineering, ETL pipelines, or ML/AI integration is a plus.
• Startup experience in a rapidly scaling company is helpful but not required.
• Domain experience in manufacturing, industrial automation, or capital projects is beneficial but not required.

Compensation Range

$150K – $220K