Staff Software Engineer
The Ed Wallach Search GroupAbout the role
Location: Sioux Falls, SD
Security Clearance: US Citizen/Clearable
We are seeking a Staff Software Engineer to help develop customer-facing command-and-control software for mission-critical systems.
This is a hands-on, full-stack engineering role for someone who thinks in systems, not just features. The successful candidate will lead the architecture and development of production-grade single-page applications and the backend services that support them, including real-time telemetry, operational data, and complex workflows.
Responsibilities
Architect and implement core systems for complex, data-driven single-page applications.
Design backend services, APIs, and data flows supporting real-time telemetry and operational workflows.
Lead technical design for full-stack features, ensuring scalable and maintainable implementations.
Establish engineering patterns, architectural standards, and code-quality practices.
Make foundational decisions on application structure, service boundaries, and system integrations.
Resolve performance, reliability, and maintainability issues across the stack.
Conduct architectural and code reviews.
Mentor engineers through clear technical discussions and constructive feedback.
Qualifications
Bachelor’s degree in software engineering, computer science, or a related field, or equivalent relevant experience.
8+ years of engineering experience with a bachelor’s degree, or 6+ years with a master’s degree.
Demonstrated experience designing and delivering significant production software systems.
Strong full-stack capability, including frontend architecture and backend services.
Ability to explain technical tradeoffs and architectural decisions clearly.
Experience solving complex engineering problems in a disciplined, high-accountability environment.
Ability to write software independently. Familiarity with AI-enabled development tools is welcome but not a substitute for engineering judgment.
Preferred Experience
Python
TypeScript
Complex data visualization
Design systems
Operational or decision-support tools
Real-time or mission-critical software environments
Work Environment
This role is primarily office-based. Strong preference is given to candidates available for onsite collaboration in Sioux Falls, South Dakota. Hybrid arrangements may be considered. Remote candidates will not be prioritized.
The role may occasionally require work near production areas with noise, fumes, moving machinery, and varying temperatures. Reasonable accommodations are available for qualified individuals with disabilities.
Compensation & Benefits
A competitive compensation and benefits package is offered, including health and disability insurance, 401(k) match, flexible spending accounts and HSAs, employee assistance program, tuition reimbursement, parental leave, paid time off, and company-paid holidays.
Responsibilities
- Architect and implement core systems for complex, data-driven single-page applications.
- Design backend services, APIs, and data flows supporting real-time telemetry and operational workflows.
- Lead technical design for full-stack features, ensuring scalable and maintainable implementations.
- Establish engineering patterns, architectural standards, and code-quality practices.
- Make foundational decisions on application structure, service boundaries, and system integrations.
- Resolve performance, reliability, and maintainability issues across the stack.
- Conduct architectural and code reviews.
- Mentor engineers through clear technical discussions and constructive feedback.
Qualifications
- Bachelor’s degree in software engineering, computer science, or a related field, or equivalent relevant experience.
- 8+ years of engineering experience with a bachelor’s degree, or 6+ years with a master’s degree.
- Demonstrated experience designing and delivering significant production software systems.
- Strong full-stack capability, including frontend architecture and backend services.
- Ability to explain technical tradeoffs and architectural decisions clearly.
- Experience solving complex engineering problems in a disciplined, high-accountability environment.
- Ability to write software independently.
Benefits
- Health and disability insurance
- 401(k) match
- Flexible spending accounts and HSAs
- Employee assistance program
- Tuition reimbursement
- Parental leave
- Paid time off
- Company-paid holidays
Skills mentioned
About The Ed Wallach Search Group
The Wallach Search Group has over 25 years of experience connecting professionals in the DOD & INTELLIGENCE Communities. We've been putting qualified Candidates and Employers together and have helped many firms grow and fill their most demanding technical & highly cleared requirements. Our Core Practice Areas: Software & Systems Engineering Digital Signal Processing (DSP) & Communications Engineering Cyber, Network, & Information Security Engineering The Services we provide our clients: Contingency Recruiting Engaged Search Retained Search Staff Augmentation Consulting Services Our goal is to help you fill your openings and optimize your recruiting success! Specialties Software Development & Engineering Java, C, C++, Python, Linux, Web Communications & Digital Signal Processing, DSP Electrical & Hardware Engineering FPGA, Digital Design, Algorithms SIGINT, COMINT, FISINT, etc. NSA, CIA, NGA, NRO, DoD, etc. Cloud, BIG Data, Data Science, Analytics IT, ERP, SAP, SAS, Oracle Cyber Security, IT Security Vulnerability, Malware, Reverse Engineering CNO, CND, CNE Scientists and PhDs with TS/SCI + BD, Capture, Proposal, Finance Executive Level, VP, Director C-Level