Senior Software Developer

Lensrentals; Northern (KY); Hybrid; USD 150,000 - 170,000; Full time

Job summary

Lensrentals is seeking a Senior Software Developer to design, develop, and maintain complex applications across the full technology stack. You will act as a technical leader, drive architectural decisions, and mentor engineers while delivering scalable software for core business operations.

The role emphasizes distributed systems, NoSQL databases, and modern tools such as Docker, Kubernetes, AWS, and GraphQL, with a stack leaning Ruby on Rails/React-like patterns and SQL-based data stores.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field (equivalent experience considered).
• 6+ years in professional software development with distributed systems experience.
• Strong full-stack capabilities across front-end, back-end, and databases.
• Solid understanding of SOLID principles and CAP theorem.
• Experience leading technical projects and mentoring engineers.

Responsibilities

• Designs, builds, tests, and maintains complex software across full stack.
• Leads architecture discussions and sets coding standards and best practices.
• Mentors junior and mid-level engineers and reviews code.
• Translates business requirements into scalable software solutions.

Skills

Full stack development

Distributed systems

NoSQL databases

SOLID & CAPTheorem

Leadership & mentoring

Multi-language proficiency

TypeScript/Go/Rust

Education

Bachelor's degree in CS/SE

Tools

Docker

Kubernetes

AWS

Git

GraphQL

SQL

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Senior Software Developer

Full Time

Salary Range: $150,000.00 To $170,000.00 Annually

Job Description:

The Senior Full Stack Software Developer is responsible for the design, development, and maintenance of complex software applications across the full technology stack. The role serves as a technical leader within the engineering team, driving architectural decisions, establishing standards, and mentoring junior developers while delivering reliable, scalable software solutions that support core business operations.

Essential Duties and Responsibilities:

Designs, develops, tests, and maintains complex software applications across front-end, back-end, and database layers

Leads technical design and architecture discussions, providing guidance on approach and implementation

Translates business requirements into technical specifications and working software solutions

Conducts code reviews and establishes and enforces team coding standards and best practices

Mentors and provides technical guidance to junior and mid-level engineers

Identifies and resolves complex software defects and performance issues across systems

Drives continuous improvement of systems, processes, and team capabilities

Maintains technical documentation in accordance with departmental standards

Education and/or Skill Requirements:

Bachelor's degree in Computer Science, Software Engineering, or related field. Equivalent experience accepted in lieu of degree

Minimum 6 years of professional software engineering experience, including 3 or more years working with distributed systems in a production environment

Advanced knowledge of full stack development including front-end frameworks, back-end services, and relational databases

Advanced knowledge of distributed systems architecture and NoSQL datastores

Strong understanding of software design principles including SOLID and CAP Theorem

Demonstrated ability to lead technical projects and mentor other engineers

Ability to read, write, and debug code across multiple languages and frameworks. Our stack is mostly Ruby on Rails with a React frontend, with a heavy emphasis on GraphQL and SQL, and we expect confidence and competence with Docker, Kubernetes, AWS, and Git. You'll also touch some TypeScript, Go, and Rust. AI-assisted development is allowed but not required.

Strong analytical, problem-solving, and decision‑making skills

Strong written and verbal communication skills

Physical Requirements:

Sedentary work; primarily performed at a desk in an office environment.

Ability to operate standard office equipment including computer, keyboard, and mouse for extended periods.