Senior Software Engineer

Paperless Parts; Boston (MA); On-site; USD 140,000 - 190,000; Full time

Job summary

Paperless Parts is a SaaS startup powering manufacturers to quote faster and win more work. You will join the engineering team as a Senior Software Engineer, building scalable Python backends and React frontends, and owning meaningful slices of the product.

You’ll mentor peers, shape AI-driven development patterns, and design secure APIs for seamless integrations, while collaborating with designers and product managers to meet customer needs.

Qualifications

• 5+ years delivering significant software solutions.
• Strong backend with Python/JS stacks and modern web frameworks.
• Frontend experience with TypeScript/React in production.

Responsibilities

• Build across the stack: Python backends and React frontends.
• Design robust, secure, versioned APIs for integration.
• Apply AI across the SDLC and promote patterns with the team.
• Solve deeply technical, secure, compliant problems.
• Champion engineering excellence: tests, observability, docs.
• Mentor engineers and collaborate with product teams.

Skills

Python

Django

FastAPI

Node.js

Express.js

Java

Spring

TypeScript

React

APIs design

CI/CD

AI tooling judgment

Mentoring & collaboration

Tools

Docker

Jenkins

AWS

PostgreSQL

Job description

Paperless Parts is a SaaS startup helping manufacturers quote faster and win more work. From rockets to medical devices, we power the parts that move the world forward.

This position requires activities that are subject to US Export Control Laws and require US Citizenship or Green Card holder.

About the Role

Join our engineering team as a Senior Software Engineer and play a crucial role in building the solutions that power manufacturing shops. You’ll work across the full stack — designing backend services and building rich, user-facing experiences — and take ownership of meaningful slices of the product. You’ll work with a modern tech stack, solve complex problems, mentor other engineers, and help shape how we adopt AI across our engineering workflow. This role is ideal for engineers who pair technical excellence with a drive for customer impact.

Who You Are

• Technically Excellent: You combine deep technical skill with a passion for delivering value to customers, and you build scalable, maintainable systems that meet real-world needs.
• Customer-Driven Innovator: You thrive in environments that encourage innovation and you’re driven to build products that make a difference.
• AI-Fluent with Good Judgment: You use AI tools to multiply your output while owning the quality, reliability, and security of what you ship, and you know when to lean on them and when not to.
• Lifts the Team: You help the engineers around you get better, sharing what you know and raising the bar through code review and mentorship.

What You’ll Do

• Build Across the Stack: Design, implement, and maintain scalable, high-performance features spanning Python backends and React frontends.
• Design APIs: Develop robust, secure, versioned APIs that enable seamless integration and data access.
• Apply AI Across the SDLC: Use AI tools fluently across the software development lifecycle — planning, coding, testing, review, and documentation — develop effective patterns for AI-assisted work, and share what works with the team.
• Solve Complex Problems: Tackle deeply technical challenges across the stack, balancing trade-offs to deliver secure, compliant solutions that meet our customers’ needs.
• Champion Engineering Excellence: Advance our practices — testing, observability, code review, and context-first documentation — so our codebase stays high-quality, performant, and legible to both humans and AI agents.
• Mentor and Grow Talent: Share your expertise with less experienced engineers, fostering a culture of continuous learning.
• Collaborate Across Teams: Work closely with designers, product managers, and other engineers to deliver products that exceed customer expectations.

What You’ll Bring

• 5+ years of experience delivering impactful software, with strong object-oriented fundamentals.
• Proficiency in a modern backend web stack, such as Python/Django or FastAPI, Node/Express, or Java/Spring.
• Hands‑on frontend experience with TypeScript and React, building and maintaining production user interfaces.
• Hands‑on experience with AWS, designing and deploying scalable, resilient cloud architectures.
• Experience with relational and non-relational databases, with a clear sense of when to use each.
• Strong experience with API design, development, documentation, and versioning.
• Expertise building and deploying applications with Docker and CI/CD tooling like Jenkins.
• Practical experience using AI coding tools in a real engineering workflow, with sound judgment about where they help and where they don’t.
• Strong communication skills, conveying complex technical concepts to technical and non‑technical stakeholders.

Why Join Us?

• Impactful Work: Your contributions will power industries critical to our society and economy, making a real difference in the world.
• Continuous Learning: We invest in our people and offer opportunities to learn, grow, and advance their careers.
• Supportive Culture: Our team is our greatest asset, and we foster an environment where everyone can thrive.