Job Overview

Proof is hiring for the Senior Full Stack Software Engineer position, and this opening is a strong opportunity for professionals who want a role with clear responsibilities, a serious business environment and a verified official application path. The listed pay range for this position is 150,000-190,000 USD/year. The role is marked as remote, with the main location requirement shown as United States. For job seekers comparing reliable opportunities, this listing is useful because the application link points to the company’s official careers or applicant tracking page, not a copied job-board repost.

The Senior Full Stack Software Engineer role is built around practical execution, collaboration and measurable results. Candidates should expect to work with people across the business, understand priorities clearly and contribute in a way that improves the team’s output. This is not just a title on a careers page; it is the type of opening where the company expects someone who can communicate well, own their area of work and keep quality high even when priorities change. The position may suit applicants who already have strong experience in software developer and want a company where their work can connect directly to product, customer, operational or business goals.

What This Role Involves

For engineering candidates, this type of role normally requires more than writing code. You should be ready to understand product context, review technical trade-offs, support reliability and write solutions that other engineers can maintain. The strongest applicants will show practical experience with production systems, clear documentation habits and the ability to improve code without making the platform harder to operate. Because the job is tied to real customer-facing or internal systems, interview preparation should focus on past projects, architectural decisions, debugging examples and how you collaborate when requirements are not perfect.

Key responsibilities may include:

Build, improve and maintain reliable software used by real customers.
Work with product, design and engineering partners to ship useful features.
Write clear, maintainable code and review technical decisions with care.
Support quality, testing, documentation and production reliability where required.

Candidate Profile

This role is best suited for someone who can combine experience with practical execution. The company will likely value applicants who can show real examples, explain their thinking clearly and work well with others.

Strong software engineering fundamentals and practical delivery experience.
Ability to write reliable, readable code and improve existing systems.
Collaboration skills for working across product, design and engineering.
Interest in quality, testing, documentation and long-term maintainability.

Skills and Experience They Need

The official application page highlights these useful skills and requirements:

5+ years building complex customer-facing web applications with Ruby on Rails and React.
Strong care for code quality, performance, reliability, unit testing and integration testing.
Ability to work across backend services, data layers, web interfaces, APIs, integrations and cloud infrastructure.
Experience with GraphQL and AWS is a strong advantage.
Clear communication, technical documentation, ownership, mentoring and collaborative problem solving.

Salary, Location and Work Setup

The compensation range listed for this role is 150,000-190,000 USD/year. Salary ranges are usually influenced by location, experience, skills, interview performance and internal leveling, so candidates should treat the published range as a guide rather than a guaranteed offer. The listing also matters because it gives applicants a direct route to apply through Proof's official system. That reduces the risk of outdated reposts and helps you submit your details where the hiring team is actually reviewing applications.

The work setup for this role is listed as remote, and the location note is: United States remote role. Candidates should confirm location eligibility on the official job page before applying.

How to Apply

Before applying, take time to tailor your resume to the role. Use the job title, core skills and measurable achievements that match the responsibilities. Your application will be stronger when it shows what you built, managed, designed, wrote, improved or delivered, not only where you worked. Prepare a short cover note only when it adds value: explain why this role fits your background, mention one or two relevant achievements and keep the tone direct and professional.

You can apply here through the official company application link provided in this job post. Use a focused resume, keep your details accurate and check that your email address and portfolio links work properly before submitting.