Senior Software Engineer - Remote

Overview

540 is looking for a Senior Software Engineer to help improve the efficiency of acquisition and procurement within the Department of War. We are looking for a startup-minded individual to work within an Agile team focusing on full stack development with JavaScript / Typescript, Java, Spring, Node and Angular primarily.

In Short

• Design, build, and deliver scalable, user-facing applications that support mission-critical workflows in a modern cloud environment.
• Own features end-to-end—from requirements and design through development, testing, and deployment.
• Collaborate directly with engineers, architects, and stakeholders to translate complex requirements into practical, working solutions.
• Develop and integrate RESTful APIs and data-driven services across distributed systems.
• Contribute to front-end development using Angular while supporting backend services in Node.js / NestJS.
• Debug and resolve issues across the stack, ensuring performance, reliability, and maintainability.
• Operate with a high degree of autonomy—able to move work forward independently while staying aligned with the broader team.
• Continuously improve code quality through testing, code reviews, enforcing coding standards and thoughtful design decisions.
• Mentor fellow developers and encourage overall team growth.
• Assist in the removal of blockers to keep a high velocity within the team.

Requirements

• 8+ years of professional software development experience.
• 4+ years of experience with JavaScript / TypeScript.
• Experience building backend services with Node.js and/or NestJS.
• Experience developing modern front-end applications using Angular (2+).
• Experience designing and integrating RESTful APIs and data-driven web applications.
• Experience working with relational databases (PostgreSQL).
• Experience working with non-relational databases (MongoDB).
• Proficiency working in an Agile environment.
• Strong problem-solving and troubleshooting skills.
• Excellent verbal and written communication skills.

Benefits

• 100% covered health, dental and vision premium for employees, optional dependent coverage.
• Flexible Spending Account (FSA).
• 401k with employer match.
• Company Sponsored Life Insurance, Short and Long Term Disability coverage.
• Flexible PTO + all Federal holidays off.
• Home Office allowance.
• Reimbursement for trainings / certifications.
• Paid AWS Developer account.
• Referral Bonus - good people know good people.
• Annual Social Events (hackathon, holiday party, charity golf tournament, etc.).