Senior/Principal Rails Engineer

Simple Thread
Glen Allen, VA

Job Description

Simple Thread stands at the intersection of software engineering and energy innovation, committed to delivering cutting-edge solutions that streamline workflows and enhance processes within the power and energy industries. As we continue to grow, we are looking for a forward-thinking Senior Rails Web Engineer to join our team. This role is pivotal in driving our growth, both in developing and maintaining robust web applications and contributing to the success of client projects that underpin our business.

Position Overview:

Reporting to the Director of Engineering, the Senior Rails Web Engineer will play a key role in expanding Simple Thread’s service portfolio. This individual will bring deep expertise in building scalable, maintainable, and high-performance web applications using Rails. As a senior engineer, you will be responsible for leading the technical design and implementation of key projects, mentoring junior engineers, and collaborating with cross-functional teams to ensure the successful delivery of software solutions.

Key Responsibilities:

Lead Development of Web Applications: Design, develop, and deploy web applications using Ruby, ensuring scalability, security, and maintainability.

Architect Efficient Backend Systems: Create and optimize database schemas and API architectures to support high-performance web applications.

Collaborate with Frontend Teams: Work closely with frontend developers to integrate user-facing elements with server-side logic.

Mentor and Guide: Provide technical guidance to junior engineers, performing code reviews and sharing best practices to ensure high code quality.

Client Engagement: Collaborate directly with clients to gather requirements, present solutions, and refine technical deliverables based on client feedback.

Innovate and Improve: Continuously evaluate new technologies and frameworks, identifying opportunities to enhance application performance and developer productivity.

Maintain High-Quality Standards: Write clean, testable code and ensure the quality of delivered products through comprehensive testing and debugging.

DevOps Collaboration: Work alongside DevOps engineers to streamline the CI/CD pipeline, improve deployment processes, and ensure application reliability.

Qualifications:

Bachelor’s degree in Computer Science or a related field (or equivalent experience).

5+ years of experience in web development, with a good chunk of that spent in Ruby and Rails.

Proven experience with RESTful API design and development.

Solid understanding of database systems and experience in optimizing complex queries and database interactions.

Familiarity with frontend technologies like HTML, CSS, JavaScript, and modern JS frameworks (React, Vue.js).

Experience with testing frameworks and CI/CD pipelines.

Demonstrated leadership skills with experience in mentoring and guiding teams.

Excellent communication skills with the ability to explain complex technical concepts to non-technical stakeholders.

Strong analytical and problem-solving skills, with a passion for delivering high-quality code.

Nice to Have:

Experience with energy industry solutions or a strong interest in the energy sector.

Strong knowledge of containerization (Docker, Kubernetes) and cloud platforms (AWS, Azure, or GCP).

Experience working in a remote-first environment and managing projects across distributed teams.

What We Offer:

A Great Team – Our team is the best part of working here. We only hire people who are fantastic teammates – competent and smart, sure, but also humble, positive, and generous.

Great Clients – We work with clients for whom our projects make a huge impact. We prioritize clients who are pleasant and good to work with, people who share our values of transparency and empathy.

Work From Home – We are a distributed company. Everyone works from home.

Flexible Work Schedule – We require a certain amount of overlap with the rest of the team, but if you have a predictable schedule, we can probably support it, e.g., ending at 3:30 every day or being out every Friday morning.

Good Work-Life Balance (really) – We ask our team to work 40 hours a week*. That’s all: a good, productive 40 hours. And then we try our best to leave you alone off the clock. *If you need to work fewer than 40 hours, that might be possible too; let’s talk.

Competitive Compensation – We offer highly competitive salary and benefits, including generous time off, 401k, FSA, medical, and dental insurance.

Simple Thread is an equal opportunity employer and will not discriminate on the basis of race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, ethnic origin, age, disability, genetic information (including family medical history), political affiliation, military service, or other non-merit-based factors. We hire the best person we can for each role, no matter your personal background.

Posted 2026-01-28

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