Senior Salesforce Developer — APIs & Federal Systems

ADP, Inc.; Bethesda (MD); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical coverage

Flexible Spending Accounts (FSA)

Disability insurance

Life insurance

401(k) Retirement Plan

Paid Time Off

Leadership development opportunities

Job summary

ISN Corporation in Bethesda, MD seeks a Senior Salesforce Developer to join our mission-critical projects servicing federal programs. You’ll work hands-on building and maintaining custom Salesforce applications and APIs, focusing on Apex, LWC, and integration layers, with strong production support.

You will lead design and troubleshooting, ensure secure coding, and collaborate with product, operations, and federal teams to deliver scalable solutions that meet government requirements.

Qualifications

• 7+ years Salesforce development experience with heavy hands-on coding.
• Strong Apex and Lightning Web Components expertise.
• Experience building and supporting custom APIs and integrations; production support and troubleshooting.
• Strong understanding of Salesforce limits, performance optimization, and secure service design.

Responsibilities

• Design, develop, version, and support ISN’s proprietary REST/SOAP APIs and service layers.
• Build and enhance custom integration frameworks using Apex, LWC, Platform Events, and asynchronous patterns.
• Develop and support solutions using Apex, Lightning Web Components (LWC), Visualforce (as needed), and Flows.
• Lead troubleshooting and resolution of production incidents, including API failures, data issues, and performance bottlenecks.
• Participate directly in production support and incident response.
• Perform deep root-cause analysis and implement durable fixes.
• Optimize systems for high-volume transactions, concurrent users, and long-running processes.
• Enforce secure coding standards and API governance.
• Collaborate with product, operations, and federal program teams on service design and enhancements.

Skills

Salesforce development

Apex

Lightning Web Components

APIs & integrations

Production support

Secure coding

Education

Salesforce Platform Developer Certification

Tools

REST APIs

SOAP APIs

Platform Events

Job description

ISN Corporation in Bethesda, MD seeks a Senior Salesforce Developer to join our mission-critical projects servicing federal programs. You’ll work hands-on building and maintaining custom Salesforce applications and APIs, focusing on Apex, LWC, and integration layers, with strong production support.

You will lead design and troubleshooting, ensure secure coding, and collaborate with product, operations, and federal teams to deliver scalable solutions that meet government requirements.