API/Integration Engineer (Journeyman)

DecisionPoint | Cortek; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

DecisionPoint | Cortek seeks two API/Integration Engineers to design, build, test, document, and maintain reusable APIs and data exchanges for the USMEPCOM ENLIST program. Roles require secure integration practices across cloud and on-prem environments, with emphasis on interface specifications, data mappings, and contract testing.

Qualified candidates will have a Secret clearance (or higher), a CS-related degree, and at least six years of relevant experience in API development, integration, and

Qualifications

• Active Secret clearance or higher.
• Bachelor's degree in CS or related field.
• At least six years of relevant professional experience.
• Experience developing, testing, and maintaining software applications.
• Experience designing, developing, integrating, or consuming APIs.
• Experience developing or maintaining unit tests.
• Experience applying secure coding principles.
• Experience using version-control systems and structured source-code management.
• Experience developing or maintaining interfaces, adapters.

Responsibilities

• Design, develop, test, document, deploy, and maintain reusable APIs, integration services, interface adapters, and data exchanges.
• Translate requirements and business rules into secure integration solutions.
• Develop interfaces that support reliable data exchange across applications, services, databases, and cloud environments.
• Prepare and maintain interface specifications, API documentation, data mappings, schemas, and transformation rules.
• Define and document request/response structures, validation rules, error responses, and authentication requirements.
• Develop and maintain unit tests, integration tests, and contract tests; ensure test data adequacy.
• Coordinate with consuming/providing systems to validate interoperability and resolve discrepancies.
• Apply secure coding practices and monitor for security-related issues across integrations.

Skills

Security clearance

API development

Unit testing

Secure coding

Version control

API integration

Interfaces & adapters

Education

Bachelor's degree in Computer Science or related field

Job description

Overview

DecisionPoint seeks two API/Integration Engineers to design, build, test, document, and maintain reusable APIs, interface adapters, and data exchanges for the USMEPCOM ENLIST program. These roles support interoperability across the assigned application portfolio and help ensure that mission systems exchange information securely, accurately, and reliably.

The API/Integration Engineers maintain interface specifications, data mappings, and contract tests; support application and data migration; diagnose integration failures; and coordinate technical solutions across development, architecture, data, testing, cybersecurity, cloud, and Government stakeholder teams.

These positions are remote, with Chicago-area candidates preferred.

Note: By applying to this position, you acknowledge and consent to having your resume included in an active competitive government contract bid.

Duties & Responsibilities

• Design, develop, test, document, deploy, and maintain reusable APIs, integration services, interface adapters, and data exchanges.
• Translate approved requirements, interface needs, business rules, and system constraints into secure integration solutions.
• Develop interfaces that support reliable data exchange across applications, services, databases, cloud environments, and external systems.
• Develop reusable integration components, shared services, transformation logic, and error-handling patterns.
• Prepare and maintain interface specifications, interface control information, API documentation, data mappings, schemas, and transformation rules.
• Define and document request and response structures, validation rules, error responses, dependencies, authentication requirements, and performance expectations.
• Develop and maintain unit tests, integration tests, contract tests, regression tests, and representative test data.
• Verify interface behavior against approved specifications, schemas, mappings, and service contracts.
• Coordinate with consuming and providing systems to validate interoperability and resolve interface discrepancies.
• Apply secure coding practices to APIs, adapters, integration services, and data-processing components.
• Implement approved authentication, authorization, encryption, certificate, logging, and data-protection controls.
• Support application, interface, platform, and data migration activities.
• Analyze legacy interfaces and develop migration, replacement, coexistence, or transition approaches.
• Support integration planning, cutover preparation, migration validation, and post-transition verification.
• Monitor, investigate, and troubleshoot interface failures, data mismatches, timeouts, authentication errors, schema violations, and processing exceptions.
• Perform root-cause analysis and implement durable corrective actions for recurring integration problems.
• Develop appropriate retry, reconciliation, exception-management, alerting, and recovery capabilities.
• Coordinate integration troubleshooting with application, database, network, cloud, cybersecurity, and external-system teams.
• Participate in peer reviews, code reviews, design reviews, interface reviews, and architecture discussions.
• Use approved version-control practices, including branching, commits, pull requests, merges, and release tagging.
• Support continuous integration, automated testing, deployment pipelines, and release-management activities.
• Maintain accurate technical documentation, configuration information, deployment instructions, known limitations, and troubleshooting procedures.
• Participate in sprint planning, backlog refinement, daily coordination, demonstrations, reviews, retrospectives, and release-readiness activities.
• Provide implementation estimates and identify interface dependencies, technical risks, assumptions, constraints, and external decisions.
• Support Government demonstrations, user acceptance testing, operational validation, and stakeholder feedback.
• Protect sensitive data and comply with applicable federal, DoD, security, privacy, records-management, and configuration-management requirements.
• Contribute to continuous improvement of API governance, interoperability, testing, documentation, monitoring, and integration practices.

Qualifications

Required Qualifications

• An active Secret clearance or higher.
• A bachelor's degree in computer science, information technology, software engineering, or a related field, or an equivalent permitted by the applicable labor category.
• At least six years of relevant professional experience.
• Experience developing, testing, and maintaining software applications.
• Experience designing, developing, integrating, or consuming APIs.
• Experience developing and maintaining unit tests.
• Experience applying secure coding principles.
• Experience using version-control systems and structured source-code management practices.
• Experience developing or maintaining interfaces, adapter