Senior Software Engineer

BigBear.Ai, Inc.; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

BigBear.ai is seeking a Senior Software Engineer to support modernization of the ORION Decision Support Platform under a multi-year contract. Location: Remote with occasional CONUS travel.

You will work on feature development, UI components in Angular, REST services in C#/.NET, and CI/CD pipelines using GitLab/GitHub/Bitbucket. The ideal candidate has 5+ years of full-stack experience, expertise in Angular, TypeScript, RxJS, C#/.NET 8, SQL Server, and Docker/Kubernetes.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related discipline (equivalent experience considered).
• 5+ years professional software development with full-stack responsibility.
• Hands-on expertise in Angular and modern TypeScript, RxJS, and component-driven architecture.
• C#/.NET 8, Web API, Entity Framework for data access.
• SQL Server schema design, query optimization, and stored procedures.
• Git/GitLab, branching strategies, and merge-request workflows.
• Docker fundamentals and at least basic familiarity with Kubernetes or other container orchestration.
• Working knowledge of automated testing and CI/CD concepts.

Responsibilities

• Feature development & maintenance.
• Implement UI components in Angular, SCSS, and PrimeNG; build REST services in C#/.NET.
• Write unit, integration, and end-to-end tests; create mocks and stubs as needed.
• API & data-layer integration.
• Design and consume REST endpoints; optimize database access using SQL Server (stored procs, indexing).
• Work with ETL engineers to pull data from data repositories and other DoD feeds into data model.
• DevSecOps & CI/CD; contribute pipeline definitions in Git CI, containerize services with Docker, and write Helm values for Kubernetes deployments.
• Address static-code scans, container vulnerability findings, and DISA STIG hardening tasks.
• Code quality & collaboration; participate in peer reviews, pair-programming, and backlog refinements; follow clean-code and SOLID principles.
• Document technical decisions, API contracts, and “run books” for operational hand-off.
• Troubleshooting & performance tuning; profile front-end load times, tune .NET memory/CPU usage, and optimize SQL queries to meet IL5 performance SLAs.
• Investigate production issues, create post-mortems, and implement corrective actions.

Skills

Angular

TypeScript

RxJS

Component-driven architecture

C#/.NET 8

REST APIs

SQL Server

Git/GitLab

CI/CD concepts

Education

Bachelor's degree in Computer Science

Tools

Git/GitLab

GitHub

Bitbucket

Docker

Kubernetes

CI/CD tooling

Job description

Residency

All applicants must currently reside in the United States

Overview

BigBear.ai is seeking a Senior Software Engineer to support the development team in modernizing the ORION Decision Support Platform—the DoW’s enterprise system for global force-readiness insight—under a new multi-year contract.

Location: Remote • Occasional CONUS travel may be required.

In this hands-on role you will apply relevant experience to evaluate, make recommendations, implement, and oversee development and deployment activities. The ideal candidate will have knowledge of but not limited to Angular, .Net, SQL Server, and Gitlab/GitHub/bitbucket CI/CD.

What you will do

• Feature development & maintenance
• Implement UI components in Angular, SCSS, and PrimeNG; build REST services in C#/.NET.
• Write unit, integration, and end-to-end tests; create mocks and stubs as needed.
• API & data-layer integration
• Design and consume REST endpoints; optimize database access using SQL Server (stored procs, indexing).
• Work with ETL engineers to pull data from data repositories and other DoD feeds into data model.
• DevSecOps & CI/CD
• Contribute pipeline definitions in Git CI, containerize services with Docker, and write Helm values for Kubernetes deployments.
• Address static-code scans, container vulnerability findings, and DISA STIG hardening tasks.
• Code quality & collaboration
• Participate in peer reviews, pair-programming, and backlog refinements; follow clean-code and SOLID principles.
• Document technical decisions, API contracts, and “run books” for operational hand-off.
• Troubleshooting & performance tuning
• Profile front-end load times, tune .NET memory/CPU usage, and optimize SQL queries to meet IL5 performance SLAs.
• Investigate production issues, create post-mortems, and implement corrective actions.

What you need to have

• SECRET clearance
• Bachelor’s degree in Computer Science, Engineering, or related discipline (equivalent experience considered).
• 5+ years professional software development with full-stack responsibility.
• Hands-on expertise in:
• Angular and modern TypeScript, RxJS, and component-driven architecture.
• C#/.NET 8, Web API, Entity Framework for data access.
• SQL Server schema design, query optimization, and stored procedures.
• Git/GitLab, branching strategies, and merge-request workflows.
• Docker fundamentals and at least basic familiarity with Kubernetes or other container orchestration.
• Working knowledge of automated testing and CI/CD concepts.

What we'd like you to have

• Ability to obtain and maintain a DoD TS/SCI clearance (existing clearance a plus).
• Experience with military or defense systems
• Experience with cloud platforms specifically AWS
• Database management systems, including SQL Server
• API development and integration
• Experience with cloud-based development and deployment
• Strong communication skills for collaborating with diverse teams

Pay transparency

Please note the targeted compensation range is provided as an estimate, and any actual compensation offer may vary depending on the needs of the company, or an applicant's skillset, competencies, experience, education, certifications, location, or other factors. The estimated range does not include the value of any benefits offered.

About BigBear.ai

BigBear.ai is a leading provider of AI-powered decision intelligence solutions for national security, supply chain management, and digital identity. Customers and partners rely on Bigbear.ai’s predictive analytics capabilities in highly complex, distributed, mission-based operating environments. Headquartered in McLean, Virginia, BigBear.ai is a public company traded on the NYSE under the symbol BBAI. For more information, visit https://bigbear.ai/ and follow BigBear.ai on LinkedIn: @BigBear.ai and X: @BigBearai.

BigBear.ai is an Equal opportunity employer all protected groups, including protected veterans and individuals with disabilities.