Software Development Engineer Internship Jobs in Colorado

Are you looking for an opportunity to make a difference? At Mesa Labs we're passionate about protecting the vulnerable by enabling scientific breakthroughs, ensuring product integrity, increasing patient and worker safety, and improving quality of life around the world.
At Mesa Labs we offer competitive wages, including potential bonus opportunities, equity awards, commission, and a comprehensive benefits package based on the position.
Base Compensation Range: $116,750 - $146,000
*In addition, you qualify for:

• Annual bonus opportunity of 12% based on company performance
• Annual equity award of $10,000

Outstanding Benefits and PerksWe are proud to offer a variety of benefits that meet the diverse needs of our employees:

• Eligible for benefits the first day of the month after you start
• Tiered Medical, Dental and Vision Insurance options, Health savings (HSA), healthcare & dependent care flexible spending (FSA) accounts
• Company paid short term and long-term disability (unless covered by a state disability plan)
• Company paid life insurance and AD&D

• Flexible Time Off Policy

• Paid sick leave of 48 hours per calendar year
• Eligible employees may receive four (4) weeks paid Care Giver leave after 1 year of service or in accordance with state leave laws
• 401(k) plan that provides a 4% Safe Harbor company match on a 4% employee contribution that begins on Day 1
• Employee Wellness and Financial Assistance Resources through Cigna and NY Life
• Nine (9) paid company holidays per year

This position supports Mesa's Calibration Solutions business. Our Calibration Solutions portfolio uses the principles of advanced metrology to enable customers to measure and calibrate critical parameters in applications such as Environmental and Process Monitoring, Dialysis, Gas Flow, Air Quality, and Torque Testing.
Job Summary
The Senior Software Development Engineer is responsible for taking on more complex, high-impact projects, mentor junior engineers, and drive technical initiatives across the development lifecycle. Design, develop, and maintain high-performance, scalable, and secure software systems while contributing to the strategic direction of the engineering team. This role will contribute to the development of a modern, cloud-connected SaaS and IoT solutions. The ideal candidate has experience building scalable backend services, APIs, event-driven systems, and modern web applications. This engineer will work across the software stack, contributing to system design, implementation, integration, testing, and ongoing product improvement.
Duties/Responsibilities:
Software Design & Architecture:
• Lead the design and architecture of complex, scalable, and high-performance software systems.
• Develop high-level technical specifications and participate in architectural decision-making to ensure that solutions align with business goals.
• Break down large problems into smaller, manageable components and define the technical solutions that address these problems.
• Drive the evolution of product and technical roadmaps in collaboration with product and business teams.
Hands-on Development:
• Write clean, maintainable, and efficient code while ensuring software systems are scalable, secure, and performant using Golang, Python, and TypeScript.
• Lead the implementation of critical features, modules, and services within core systems and applications. Implement and support event-driven integrations using message brokers like NATS.io and Kafka.
• Ensure code quality by following industry best practices, using design patterns, and adhering to coding standards.
• Review and refine code written by other team members through comprehensive code reviews to maintain high coding standards and improve team knowledge sharing.
• Work with time-series and relational data systems, primarily QuestDB and PostgreSQL.
• Develop APIs and service interfaces for internal and external system integration.
• Build and maintain deployment processes for development, test, staging, and production environments in Azure.
• Design, implement, and support CI/CD pipelines for backend services, frontend applications, infrastructure, and database-related deployments.
• Utilize AI-assisted development tools to improve engineering productivity across design, coding, testing, debugging, documentation, and maintenance activities.
Leadership & Mentorship:
• Provide technical leadership and mentorship to junior and mid-level engineers, guiding them in design decisions and best practices.
• Foster an environment of learning and growth, supporting the professional development of team members.
• Lead by example in creating a culture of excellence, encouraging team members to take ownership of their work and deliver results.
• Collaborate with other senior engineers and architects to define development guidelines, best practices, and processes.
Problem Solving & Troubleshooting:
• Take the lead in troubleshooting complex software issues and performance bottlenecks.
• Identify and address system inefficiencies, scalability issues, and security vulnerabilities across production and staging environments.
• Perform root cause analysis for production incidents, provide immediate resolutions, and implement solutions to prevent future occurrences.
Collaboration & Cross-Functional Teamwork:
• Work closely with product managers, QA, UX/UI designers, and other stakeholders to define and implement features, ensuring alignment with business requirements.
• Collaborate with cross-functional teams, including operations, infrastructure, and other engineering departments, to optimize software systems and services.
• Ensure alignment of technical architecture and design decisions with broader organizational goals, scaling requirements, and best practices.
Continuous Improvement:
• Advocate for continuous improvement within the team and organization by suggesting new tools, processes, and technologies.
• Stay current with industry trends, new technologies, and best practices to ensure the team's solutions remain cutting-edge.
• Participate in or lead agile ceremonies (e.g., sprint planning, retrospectives, stand-ups) to ensure effective and efficient project delivery.
Testing & Quality Assurance:
• Drive the adoption of best practices for automated testing, including unit, integration, and end-to-end tests.
• Ensure that software meets functional and non-functional requirements, such as performance, reliability, security, and scalability.
• Collaborate with QA engineers to design test strategies and validate that features are fully tested before release.
Documentation & Knowledge Sharing:
• Create and maintain clear technical documentation for both internal and external use.
• Ensure that software design, architecture, and implementation decisions are well-documented and communicated effectively to other engineers and stakeholders.
• Share knowledge through technical presentations, internal workshops, and mentoring sessions.
Experience/Education:
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Minimum of 5 years of hands-on software development experience in a professional, production environment.
Knowledge & Skillsets Required:
• Experience developing software applications in Go, Python, or similar modern programming languages.
• Experience developing frontend web applications using React, JavaScript, TypeScript, HTML, and CSS.
• Experience working with SQL databases such as PostgreSQL.
• Preferred experience with NATS, message brokers, or event-driven architecture.
• Preferred experience with time-series databases such as QuestDB, InfluxDB, or similar platforms.
• Strong knowledge of software development methodologies, including Agile/Scrum.
• Expertise in software design patterns, algorithms, and data structures.
• Experience with microservices architecture, RESTful APIs, and service-oriented design.
• Familiarity with DevOps practices and CI/CD pipelines, containerization (e.g., Docker, Kubernetes).
• Experience with monitoring and observability tools (e.g., Prometheus, Grafana, Datadog).
• Familiarity with version control tools (e.g., Git), testing frameworks, and code quality tools.
• Experience with performance optimization, load balancing, and security considerations for large-scale applications.
• Excellent problem-solving and critical-thinking skills.
• Strong communication skills, with the ability to explain complex technical concepts to non-technical stakeholders.
• Strong leadership and mentoring abilities, with a track record of influencing and guiding teams to success.
• Ability to manage competing priorities and deliver high-quality software on time.
• A collaborative mindset, capable of working effectively with cross-functional teams.
Physical Demands (US Only):
• Sitting: Often for extended periods at desks or meetings.
• Standing or walking: Occasionally for meetings or office tasks.
• Using computers: Typing and using office equipment.
• Lifting: Light, less than 10 pounds.
• Repetitive motions
Environmental Conditions:
• Workspace: Climate control (air conditioning or heating) to ensure comfort.
• Lighting: Adjustable lighting to reduce eye strain.
• Noise Levels: The noise level is moderate, with occasional interruptions from phone calls and conversations.
Mesa Labs is an Equal Employment Opportunity Employer.
Mesa Labs prohibits unlawful discrimination and harassment against applicants or employees based on age, race, sex, color, religion, creed, national origin or ancestry, disability, military status, sexual orientation, or any other status protected by applicable state or local law. Please note that Mesa Labs conducts criminal background checks upon offer acceptance.
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.