Remote Mainframe Developer Jobs in Tennessee (NOW HIRING)

About
Barn2Door is a high growth food+tech startup with offices in Seattle, WA and Nashville, TN. We offer an all-in-one solution to help Farmers grow and manage their business. Barn2Door provides Software and Services to help Farmers increase sales, access more customers and save time.
We are looking for people passionate about the intersection of local Food, Farming and Technology, who understand both the rigor and opportunity of a high growth startup. Serving 1000's of Farmers across all 50 states, our goal is to make it easy to buy local Food directly from local Farms. At Barn2Door, you'll get to learn what it takes to build a startup business and participate in ongoing training and education, while also playing a critical role in our fast-paced growth.
We have amazing offices, a vibrant office office culture and an environment that promotes collaboration and professional growth. Barn2Door is building a team eager to improve access to local Food from local Farmers, while promoting good stewardship of our land and resources. Want to work hard, have fun and make a difference? Join us.
Overview
As a Senior Software Engineer, you are expected to provide critical thinking, a high degree of technical innovation and attention to detail while serving as a trusted advisor and leader to our team. You will need to balance many complex and competing technical priorities and be able to actively architect, design, develop, and test solutions.
Seeking highly talented Senior Software Engineers that are passionate about creating and supporting next generation products and services, have a passion for quality and performance, and are excited to leverage AI to build powerful services and outcomes for Farmers across the country.
You Will:

• Create well thought-out code with the assistance of AI tooling with emphasis on quality, maintainability and performance --- while mentoring others to do the same
• Consider and advocate for the customers' perspective and experience
• Coach a team through code reviews, including testing and documentation
• Be responsible for understanding and adapting to new technologies, tools, methods and processes
• Help optimize our platform for performance, maintainability, ease-of-use and scalability
• Work closely with product owners to define the scope of work for upcoming releases
• Build and improve small and large scale testing tools, frameworks, and methodologies
• Challenge yourself by exercising self-driven learning and team problem-solving on a daily basis
• Cultivate a broad technical and non-technical skills driven by a startup culture
• Participate in the full life cycle of our products including design, development, code reviews, patent creation, testing, documentation, deployment, and maintenance

You Are:

• Comfortable mentoring and collaborating with other engineers across a distributed team
• Excited about using AI tools and coaching other team members in their use
• Capable of both deciding next actions and knowing when the decision requires sign off from management
• Comfortable in a dynamic (i.e., startup) work environment
• Comfortable in ambiguous situations
• A good communicator with the ability to express and share ideas to business leaders with a non-technical background
• Bonus: a Recruiter! In this role you should be on the constant lookout for the best talent to help build out our team of quality engineers pioneering SaaS in an underserved vertical

You Have:

• BS Computer Science, or comparable degree
• 6+ years of experience in full stack development using an object oriented language
• 2+ years of experience in building responsive UI's using latest JS Frameworks (React, Vue, etc)
• 3+ years in leading technical designs and implementation of highly scalable and adaptable systems
• 3+ years in mentoring developers and helping drive engineering maturity
• 1+ years of experience with AI assisted development using tools such as Claude Code, OpenCode, GitHub Copilot or similar. Hands-on experience integrating AI into customer facing applications using RAG, MCP, Vector DBs, and other technologies is a highly desirable bonus.
• Experience maintaining and updating a large codebase
• A real passion for solving complex software engineering puzzles in a dynamic environment
• Deep understanding of software design principles, algorithms, data structures, and asynchronous concepts
• Strong verbal and written communication skills
• Experience optimizing queries, slicing functionality into services, use of caching, sharding DBs, etc.
• Experience with any of the following testing: performance testing, security testing, privacy testing, accessibility testing, and localization / globalization testing
• Sound problem resolution, judgment, negotiating and decision making skills
• Experience with: NodeJs, React, AWS, Terraform
• Bonus experience: Stripe, Redis, Postgres, large scale data analytics and failure analysis

You Get:

• Annual salary DOE + stock options
• 10 days PTO, 5 days Sick Leave and 11 Paid Holidays
• 100% premium coverage for Medical, Dental, Vision and AD&D (Employee-only)
• Real experience in a high profile startup company just hitting its growth curve
• To work closely with all team members including executives
• Ongoing training and professional development
• Opportunity to be a rock star - great exposure and upside
• To grow your skill set and experience with end-to-end engineering influence and responsibilities

Net-net
We're looking for Hardy individuals, with a Heart for Farmers. You should thrive on the urgency of a startup atmosphere, be Hungry to improve, look to be Helpful, and consistently put others' needs above your own (Humble). We love to inject Humor into our days, while working hard together to help Farmers be successful!
If you've got the drive, grit, creativity, and a passion for local food, game-changing software, and disrupting the food industry - then Barn2Door may be right for you.