Backend Integration Engineer

February 27, 2026

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Job Description

3.13.1 out of 5 stars

Washington, DC 20002

Job details

Shift and schedule

  • Extended hours
  • Weekends as needed
  • Monday to Friday

BenefitsPulled from the full job description

  • Referral program
  • On-the-job training
  • 401(k)
  • Health insurance
  • Paid time off
  • Vision insurance
  • Dental insurance

Full job description

About

company delivers integrated risk management and security solutions that protect people, infrastructure, and operations worldwide.

LEXSO (Layered Extended Security Operations) is Constellis’ advanced, sensor-agnostic integration platform designed to respond at the speed of sensing. LEXSO is sensor agnostic but as an example, it fuses LiDAR, radar, camera, seismic, Counter-UAS systems, access control systems, and other detection technologies into a unified operational platform that enables real-time detection, automated workflows, and mission-focused decision support.

We are seeking a Backend Integration Engineer to expand and support LEXSO’s device ingestion, control, and API integration services across multi-domain security environments.

Position Overview

The Backend Integration Engineer will design and implement backend services that integrate diverse third-party systems into LEXSO’s microservice architecture, including:

  • Ground-based sensors (LiDAR, radar, seismic)
  • Video surveillance platforms
  • Counter-UAS detection and tracking systems
  • Access control systems (badge readers, gate systems, identity platforms)
  • Drone/UAS response systems
  • OSINT and weather systems where applicable

This is a hands-on engineering role focused on API integration, real-time event processing, and deterministic device control within distributed systems.

Responsibilities

  • Develop backend services that ingest and normalize data from LiDAR systems, Radar platforms, Counter-UAS detection systems, PTZ camera systems, Seismic/Acoustic sensors and Access control systems
  • Build connectors and adapters for vendor-specific APIs and SDKs.
  • Translate heterogeneous data formats into standardized, spatially aware event models.
  • Integrate Counter-UAS detection systems that provide UAS identification, pilot localization, tracking telemetry and alert generation
  • Normalize UAS detection events into actionable backend workflows.
  • Support integration of drone response systems into automated workflows.
  • Ensure secure handling of airspace event data and real-time alerting
  • Integrate physical access control systems (ACS) into LEXSO
  • Correlate access control events with sensor detections and spatial context.
  • Support rule-based workflows linking perimeter detection to access control triggers.
  • Design and maintain RESTful APIs and service interfaces.
  • Implement secure authentication and authorization (OAuth2, JWT, RBAC).
  • Maintain API versioning and documentation standards.
  • Support service-to-service communication across microservices.
  • Ensure encryption and secure transport between systems.
  • Build ingestion pipelines capable of processing streaming sensor and system data.
  • Normalize incoming data into structured event models answering key
  • Support event prioritization, deduplication, and queue management.
  • Implement command routing services for supported devices and systems.
  • Support automated workflows triggered by real-time events.
  • Implement structured logging, monitoring, and system health reporting.
  • Participate in deployment validation and operational testing.

Qualifications

  • 5–7 years of professional experience designing and implementing APIs.
  • 5–7 years building backend systems in distributed or service-based architectures.
  • Bachelor’s degree in Computer Science, Engineering, or related technical discipline required
  • Experience integrating third-party systems via REST APIs.
  • Experience working with production systems requiring high availability.
  • Experience troubleshooting complex integration challenges.
  • Experience working in an Agile Development Environment.
  • Strong proficiency in one backend language such as Python (FastAPI) and Node.js
  • Experience working in microservice architectures.
  • Strong understanding of:
    • REST API design best practices
    • JSON and streaming data formats
    • Event-driven architectures
  • Experience with:
    • CI/CD pipelines
    • Docker or containerized deployments
    • Cloud environments (AWS, Azure, or hybrid)
  • Familiarity with authentication and role-based access control models.
  • Preferred Experience
    • Experience integrating Counter-UAS systems.
    • Experience integrating physical access control systems.
    • Experience working with sensor-based or IoT systems.
    • Familiarity with message brokers (Kafka).
    • Experience in defense, federal, or regulated environments.
    • Familiarity with geospatial data and spatial indexing.

BENEFITS

company offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflect its commitment to creating a diverse and supportive workplace.

  • Medical, Vision & Dental Insurance
  • Paid Time-Off Program & Company Paid Holidays
  • 401(k) Retirement Plan
  • Insurance: Basic Life & Supplemental Life
  • Health & Dependent Care Flexible Spending Accounts
  • Short-Term & Long-Term Disability
  • Personal Development & Learning Opportunities
  • On-the-job Training, Skills Development & Certifications
  • Employee Referral Program
  • Corporate Sponsored Events & Community Outreach

WORKING CONDITIONS

Work is typically based in a busy office environment and subject to frequent interruptions. Business work hours are Monday-Friday from 8:00 am to 5:00 pm, however some extended or weekend hours may be required. Travel up to 50% is required.

PHYSICAL REQUIREMENTS

May be required to lift and carry awkward items weighing up to 50 lbs. Requires intermittent standing, walking, sitting, squatting, stretching and bending throughout the workday.