About Constellis & LEXSO
Constellis 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.
- Business work hours are Monday-Friday from 8:00 am to 5:00 pm, however some extended or weekend hours may be required.
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
Constellis 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.
