Senior Platform Engineer

Department: Engineering

Location: Bellevue, WA

Compensation: $170K – $200K • Offers Equity

Employment Type: FullTime

About Summation

Summation is building the future of business planning and analytics by bridging the gap between data and decision-making. We empower organizations to transform complex data into clear, actionable insights that drive business outcomes. Our AI-native platform integrates advanced data models with intuitive workflows, making financial performance management simple, collaborative, and effective.

The Role

As a Senior Platform Engineer at Summation, you will be a key contributor to the development of our business planning and analytics platform. You will be responsible for designing, developing, and scaling the core systems that power our AI-driven solutions, focusing on performance, reliability, and customer impact. You will collaborate across teams, including product, design and deployment, to build solutions that are not only technically robust but also aligned with customer needs.

Key Responsibilities

• Product Development: Design and implement innovative software solutions that simplify and automate business planning and analytics. Work closely with the product and solution teams to translate business requirements into robust and scalable technical implementations.

• Collaborative Technical Problem Solving: Tackle complex challenges involving data processing, financial modeling, and system integration, applying your technical expertise to solve problems that have a direct impact on customer success.

• Code Quality and Best Practices: Write clean, maintainable code and perform code reviews to ensure adherence to best practices. Architect efficient and reusable frontend and backend systems that drive powerful web and mobile applications. Foster a culture of technical excellence.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or a related field.

• 5+ years of experience in software engineering

• Strong programming skills in languages such as Python, Java, or similar

• Proficiency in SQL and experience working with data-intensive systems, including experience with financial data modeling.

• Excellent problem-solving skills, with a focus on creating elegant, scalable solutions for complex business problems.

• Strong communication skills and the ability to collaborate effectively with cross-functional teams.

What We Offer

• Competitive salary and equity options

• Flexible (Unlimited) Paid Time Off

• Medical, Dental, and Vision benefits for you and your family

• 401(k) Plan

• Parental Leave

• A collaborative environment where your voice matters

• Opportunities for growth and career development

• The chance to work on cutting-edge technology that is transforming how businesses plan and execute