Software Engineer

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.

On this project, you will be supporting the development and implementation of several web applications that assist procurement specialists within the Department of War to help them become more efficient. These applications use modern technologies to gather and display relevant information in a user-friendly way, which help the client increase data consistency for systems of record. With better standardization across these source systems, the client will have better insight into the procurement landscape that will help them develop and drive policy for the entire Department of War. 

Alongside project responsibilities, this role will also serve as the project’s Technical Anchor for 540. In this capacity, you will help drive the overall technical delivery and success of the project in partnership with the Project Anchor and internal team members. Responsibilities include establishing and maintaining technical standards aligned with organizational objectives, providing technical guidance and coaching to team members, and helping lead technical innovation and continuous improvement efforts across the project.

Location: Remote friendly within the continental United States, East Coast working hours
Citizenship & Clearance Requirement: per client requirements, candidates must be a U.S. Citizen with the ability to obtain a DoW Secret clearance
Education Requirement: Bachelor’s Degree
540 Internal Thrive Level: Senior Software Engineer 

WHY 540?

540 is a forward-thinking company that the government turns to in order to #getshitdone. We don’t just talk about innovation – we deliver it. We break down barriers, build impactful technology, and solve mission-critical problems.

HOW YOU’LL DRIVE IMPACT

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

Bring a builder mindset—focused on delivering real, working software over theoretical perfection

Mentoring fellow developers and encouraging overall team growth

Assisting in the removal of blockers to keep a high velocity within the team

REQUIRED SKILLS & EXPERIENCE

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 (i.e. backlog refinement, story size estimation, etc)

Ability to handle the creation/distribution of release notes

Coordination of application deployments

Ability to identify and communicate technical requirements needed to implement a feature

Identify/collaborate with team over new technical work/gaps within applications

Strong problem-solving and troubleshooting skills 

Excellent verbal and written communication skills

Ability to work independently in client-facing environments while collaborating effectively with a team

NICE TO HAVE SKILLS & EXPERIENCE

Experience with test automation frameworks with Playwright

Experience developing in Java and working with the Spring framework

Experience with containerization with Docker

Experience writing unit tests with Jest or Jasmine

Experience working in cloud environments (AWS preferred)

An understanding of cloud services and when to utilize them

An understanding of technical architecture design

Experience completing Security Technical Implementation Guides (STIGs)

BENEFITS & PERKS

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.)

Access to 540’s Washington Capitals tickets

EQUAL EMPLOYMENT OPPORTUNITY (EEO)

540's policy is to provide equal employment opportunity to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.