Senior Principal Software Engineer

Clarity Innovations; Herndon (VA); On-site; USD 110,000 - 277,000; Full time

Job summary

Clarity Innovations is seeking a Full-Stack Software Engineer to design, build, and enhance a modern analytics product that turns complex data into actionable insights. You will contribute across the stack, from intuitive UIs and interactive visuals to scalable APIs, data services, and cloud infrastructure.

The ideal candidate will manage large, varied datasets, solve complex problems, and collaborate with product managers, data engineers, and other engineers.

Qualifications

• Typically has a University Degree (BA/BS) or equivalent experience and minimum 7 years of prior relevant experience.
• Experience developing backend services and APIs in Go, C++, or C# is required.
• Experience building analytics, BI, geospatial, data-fusion, or data-exploration products.
• Familiarity with large-scale data platforms, search technologies, or distributed query engines.

Responsibilities

• Design, build, and enhance a modern analytics product across the application stack.
• Develop backend services and scalable APIs for data processing and insights.
• Collaborate with product managers, designers, data engineers, and other software engineers.

Skills

Backend development

RESTful APIs

Data analytics

Geospatial data

Distributed systems

Education

Bachelor's degree in a related field

Tools

Go

C++

C#

PostgreSQL

Elasticsearch

Trino

Apache Iceberg

Job description

Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation’s interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD) to transform data into actionable intelligence, ensuring mission success in an evolving world.

Our mission-first software and data engineering platform modernizes data operations, utilizing advanced workflows, CI/CD, and secure DevSecOps practices. We focus on challenges in Information Warfare, Cyber Operations, Operational Security, and Data Structuring, enabling end-to-end solutions that drive operational impact.

We are committed to delivering cutting-edge tools and capabilities that address the most complex national security challenges, empowering our partners to stay ahead of emerging threats and ensuring the success of their critical missions. At Clarity, we are people-focused and set on being a destination employer for top talent, offering an environment where innovation thrives, careers grow, and individuals are valued. Join us as we continue to lead innovation and tackle the most pressing challenges in national security.

Position Summary

We are seeking a Full-Stack Software Engineer to help design, build, and enhance a modern analytics product that transforms complex data into actionable insights. This role will contribute across the application stack, from intuitive user interfaces and interactive visualizations to scalable APIs, data services, and cloud infrastructure.

The ideal candidate is comfortable working with large and varied datasets, solving complex technical problems, and collaborating with product managers, designers, data engineers, and other software engineers. This position is well suited for someone who takes ownership of their work and enjoys building reliable products that help users make informed decisions.

• Typically has a University Degree (BA/BS) or equivalent experience and minimum 7 years of prior relevant experience.
• Works to achieve operational objectives with a major impact on the job area and/or departmental results.
• Responsible for improving processes, systems, or work methods to enhance the performance of the function.
• Influences stakeholders within and outside the immediate work area regarding policies, practices, and procedures.
• Provides guidance, coaching, or training to other professionals within the job area.
• Requires advanced knowledge of the job area typically obtained through advanced education combined with experience.

Project Specific Qualifications

• Experience developing backend services using languages such as Go, C++, or C#.
• Experience designing, building, and consuming RESTful or similar web APIs.
• Experience building analytics, business-intelligence, geospatial, data-fusion, or data-exploration products.
• Familiarity with large-scale data platforms, search technologies, or distributed query engines.
• Familiarity with PostgreSQL, Elasticsearch, Trino, Apache Iceberg, or similar technologies.

Salary Range: $110,000 - $277,000

We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.