BAE Systems

Eng Sr - SW

BAE Systems • $100K — $130K *
Nashua, NH 03060In-Person
Information Technology
Less than 5 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science or related field, or equivalent experience.
  • 4+ years of professional software development experience.
  • Significant experience delivering full stack web applications in production.
  • Experience building and consuming APIs and integrating with external systems/services.
  • Proficiency with a modern frontend framework and strong skills in HTML, CSS, and JavaScript/TypeScript.
  • Solid experience with relational databases and performance considerations.
  • Comfortable working with version control (Git) and modern collaboration workflows.

Responsibilities

  • Deliver features end-to-end from requirements through design, implementation, testing, and release.
  • Develop and maintain ASP.NET Core APIs, business logic, and Blazor UI components.
  • Design and optimize SQL Server schemas, queries, and data access.
  • Apply validation, security, and quality standards, including test automation.
  • Improve architecture and code quality through refactoring, patterns, and best practices.
  • Collaborate with product and business stakeholders to clarify requirements and trade-offs.
  • Review code and mentor teammates, gradually taking on technical leadership and ownership.

Benefits

  • Opportunity to take on technical leadership and own key solutions.
  • Collaborative environment working with product and business stakeholders.
  • Mentorship opportunities for professional growth.
  • Focus on improving architectural design and coding standards.
Full Job Description
Job Description

We are looking for a Senior Full Stack Developer to join our team and take a leading role in the evolution of our internal business solutions and line-of-business web applications. You will start as a hands-on senior engineer, collaborating with product and business stakeholders to deliver features, improve reliability, and refine the architecture. Over time, you will become the technical lead for one or more key solutions, guiding their roadmap, mentoring other engineers, and setting engineering standards.
Key Responsibilities
  • Deliver features end-to-end from requirements through design, implementation, testing, and release.
  • Develop and maintain ASP.NET Core APIs, business logic, and Blazor UI components.
  • Design and optimize SQL Server schemas, queries, and data access.
  • Apply validation, security, and quality standards, including test automation.
  • Improve architecture and code quality through refactoring, patterns, and best practices.
  • Collaborate with product and business stakeholders to clarify requirements and trade-offs.
  • Review code and mentor teammates, gradually taking on technical leadership and ownership.


Required Skills and Education

Required Education, Experience, and Skills
  • Bachelor's degree in computer science or related field, or equivalent experience.
  • 4+ years of professional software development experience.
  • Significant experience delivering full stack web applications (backend + frontend) in production
  • Experience building and consuming APIs and integrating with external systems/services.
  • Proficiency with at least one modern frontend framework (e.g., a component-based SPA or similar) and strong skills in HTML, CSS, and JavaScript/TypeScript.
  • Solid experience with relational databases: schema design, SQL queries, indexing, and performance considerations.
  • Comfortable working with version control (Git) and modern collaboration workflows (branching, pull requests, code reviews).
  • Experience writing and maintaining unit and integration tests and using them as part of regular development.
  • Understanding software design principles and patterns (e.g., SOLID, layering, separation of concerns)


Preferred Skills and Education

  • Prior experience as a tech lead or lead engineer on a significant application or subsystem.
  • Professional experience with C#, ASP.NET Core, and Blazor in production environments.
  • Experience with MudBlazor or similar component libraries.
  • Experience with SQL Server and micro-ORMs or lightweight data access libraries (e.g., Dapper).
  • Familiarity with FluentValidation or similar validation frameworks.
  • Experience with enterprise authentication (e.g., Windows/Negotiate, Active Directory).
  • Hands-on experience with CI/CD, monitoring, and performance tuning for web applications.
  • Experience modernizing or refactoring existing codebases and managing technical debt.
  • Background building internal enterprise or business process automation solutions and working closely with business stakeholders.

About BAE Systems

BAE Systems plc is a British multinational arms, security, and aerospace company. It is among the world's largest defense contractors, with over 85,000 employees and operations in over 40 countries. BAE Systems is involved in the design, development, and manufacture of a wide range of products and services, including military aircraft, naval ships, and land vehicles. The company also provides a range of cybersecurity and intelligence services. BAE Systems has a long history, dating back to the 19th century, and has been involved in many major defense projects. Visit baesystems.com for more information.
Learn more about BAE Systems
Size
90,500 employees
Industry
Aerospace & Defense
Founded
1997
NASDAQ
BAESF
* Ladders Estimates

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