Senior Fullstack Engineer

Yes Energy; Boulder (CO); Hybrid; USD 135,000 - 160,000; Full time

Benefits offered by this job

Medical insurance

401(k) Plan with matching

Flexible vacation

Flexible work schedules

Job summary

Yes Energy in Boulder, CO invites an experienced Senior Full Stack Engineer to help shape the architecture of our next‑generation energy market platform. The role emphasizes back‑end focus with C#/.NET, API design, and scalable services, while contributing to front‑end as needed.

You will mentor engineers, drive architectural decisions, and collaborate with product leadership to advance the platform, leveraging AI‑assisted tools to improve velocity and quality. Hybrid work is offered.

Qualifications

• 7+ years of software engineering experience.
• Strong expertise in C#/.NET.
• Experience designing distributed systems and APIs.
• Experience leading technical design and architecture.
• Strong communication and mentoring skills.
• Familiarity with AI-assisted development tools is a plus.

Responsibilities

• Design architecture for scalable platform services.
• Lead back‑end development in C#/.NET and API design.
• Define API and service design patterns.
• Guide database architecture and performance tuning.
• Mentor engineers through reviews and coaching.
• Drive engineering best practices and testing.
• Collaborate with Product and Engineering leadership on tech direction.
• Leverage AI-assisted tools to boost velocity and quality.

Skills

C#/.NET

Distributed systems design

APIs

Technical leadership

Mentoring

Communication

AI tooling

Job description

Join the Market Leader in Electric Power Data and Analytics Solutions

The electrical grid is the largest and most complicated machine ever built. Yes Energy’s industry-leading electric power trading analytics software provides real‑time visibility into the massive amount of data generated by the North American electrical grid daily. Our unique and innovative view of the data informs real‑time trading decisions and mid‑to‑long‑term investment decisions that keep utility prices low, support the energy transition, and keep the grid running. It’s both challenging work and work with a purpose.

Be a part of our successful, growing business during international transformation.

Position Summary

We’re looking for a Senior Full Stack Engineer with deep back‑end expertise to help shape the architecture of our next‑generation energy market platform. This role combines hands‑on development with technical leadership across settlement processing, bid submission, market workflows, and platform APIs. The majority of development is back‑end focused, with front‑end work serving as a secondary responsibility.

• Salary range: $135,000 - $160,000
• Location: Hybrid (Boulder, CO)
• Full‑time
• Hybrid – 2 days in the office
• Reporting to: Vice President, Engineering

Primary Responsibilities

• Design architecture for scalable platform services.
• Lead implementation of back‑end systems in C#/.NET.
• Define API and service design patterns.
• Guide database architecture and performance optimization.
• Mentor engineers through design reviews and technical coaching.
• Drive engineering best practices, testing, and operational excellence.
• Partner with Product and Engineering leadership on technical direction.
• Leverage AI‑assisted development tools to improve engineering velocity and quality.

Minimum Qualifications

• 7+ years of software engineering experience.
• Strong expertise in C#/.NET.
• Experience designing distributed systems and APIs.
• Experience leading technical design and architecture.
• Strong communication and mentoring skills.

Preferred Qualifications

• Experience with energy markets, settlements, or trading platforms.
• Experience modernizing enterprise applications.
• Experience with cloud‑native architectures.
• Experience incorporating AI‑assisted development into engineering workflows.

Compensation and Benefits

We offer highly competitive salaries and real bonuses that are achievable and that you can impact. The benefits package is also very competitive, including medical insurance, a 401(k) Plan with matching, flexible vacation, and flexible work schedules. Yes Energy encourages and funds investment in both formal and informal professional development.

In accordance with Colorado law, the range provided is Yes Energy’s reasonable estimate of the base compensation for this role. The actual amount may be higher or lower based on non‑discriminatory factors such as location, experience, knowledge, skills, and abilities.

Yes Energy provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, or genetics. In addition to federal law requirements, Yes Energy complies with applicable state and local laws governing nondiscrimination in employment in every location where the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.