Sr Software Engineer (Python, C++)

Fantom Corporation is a mission-focused organization supporting critical programs across the defense and intelligence community. We partner with our customers to deliver high-impact technical solutions while fostering a culture built on trust, expertise, and long-term career growth.

We are seeking a Senior Software Engineer to design, develop, and maintain complex software systems supporting high-performance and data-intensive applications. This role focuses on building scalable solutions in Linux environments, with an emphasis on Python and C++ development, real-time processing, and advanced algorithm implementation.

The ideal candidate has extensive experience working across the full software development lifecycle and is comfortable leading technical efforts while collaborating with cross-functional engineering teams.

Design, develop, and maintain complex software systems based on defined requirements

Analyze user and system requirements to derive software design and performance specifications

Develop new software features and enhance existing applications to improve functionality and performance

Debug and resolve software defects and performance issues

Implement and optimize algorithms to meet system performance and timing requirements

Integrate software components into new or existing systems and environments

Develop and execute test procedures and validate software performance

Design and implement database queries and data processing logic

Produce and review technical documentation for software and system components

Collaborate with system and hardware engineers to define requirements, constraints, and interfaces

Evaluate software design trade-offs, including reuse of existing solutions (COTS/GOTS)

Monitor system performance and ensure operational requirements are met

Provide recommendations to improve development processes, documentation, and system performance

Lead or support software development teams and ensure delivery aligns with project requirements