Senior Application Developer(DAAS API GW)

Senior Application Developer

Location: Remote.

Clearance: Must possess an Active Secret Clearance 

Employment Type: Full-time.

Salary Range: $125,000 – $130,000.

Who we are:

Horizon Industries Limited (Horizon) is a dynamic IT and Management Consulting firm based in the Washington, DC area. Founded in 1996, Horizon Industries Limited (Horizon) has evolved into a company of highly qualified professionals that provides full-cycle IT Consultant and Management support in both the private and public sectors.

Horizon’s culture is based on our core values, and we PRIDE ourselves on a diverse, employee, and family-centric approach.

Program Overview

The Senior Application Developer will be responsible for authoring and maintaining data transmission APIs within the MuleSoft development framework, ensuring secure and reliable integrations across enterprise systems. This role includes analyzing traffic patterns for system health, troubleshooting issues, and coordinating with business stakeholders to deliver product changes.

The position requires strong knowledge of data transmission schemes, API development, and application programming, with additional expertise in low-code/no-code platforms, Agile delivery, and MuleSoft Anypoint Platform development.

Duties of a Senior Application Developer may include but are not limited to:

• Developing data transmission APIs using the MuleSoft framework.

• Analyzing system traffic patterns to monitor performance and health.

• Coordinating with business stakeholders to troubleshoot and resolve issues.

• Supporting product change requests and enhancements through software development best practices.

• Designing and implementing integrations leveraging HTTP, SMTP, TLS, proxies, and web APIs.

• Creating process automation solutions using low-code/no-code BPMN tools such as Appian, Salesforce, or Nintex.

• Supporting Agile and hybrid low-code application development methodologies.

Required Skills / Experience

• 5+ years of professional software development experience.

• Strong understanding of data transmission schemes (HTTP, SMTP, TLS, proxies, web APIs).

• Proficiency in at least one programming language: JavaScript/TypeScript, Java, C#/.NET, Python, SQL, or C++.

• Experience with application programming interfaces (APIs) supporting low-code/no-code platforms.

• Knowledge of Agile and hybrid application development processes.

• Experience in MuleSoft Anypoint Platform development.

Certifications / Security Requirements

• DoD 8570 Baseline Certification: IAT Level I.

• MuleSoft Certified Developer – Level 1 (required within 6 months of hire).

Education : Undergraduate degree in Computer Science, Information Systems, Engineering, Business, or related field.

Why you will love working with us/ Perks:

• A comprehensive benefits package including healthcare (medical, dental, vision and disability)
• a 401 (k) program where you are 100% vested from day one with an employer match after 90 days.
• An Educational Assistance program.
• a Student Loan Repayment Program
• Gym Reimbursement Program.
• Paid Time off
• Dynamics, a passionate, multi-disciplinary team of creative minds to work with, and many more.

Horizon is an Equal Employment Opportunity employer, and it is our policy to consider all applicants for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.  

EOE/Vet/Disabled