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.
Constellis Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Constellis and has not been reviewed or approved by Constellis.
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Leave & Time Off Breadth — Structured PTO starting around 15 days per year, increasing with tenure, plus 12 company holidays establishes a predictable time-off baseline. This design provides clear accrual growth with tenure.
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Retirement Support — A 401(k) is available at hire for eligible employees with contributions adjustable at any time. This offers accessible retirement saving even as terms may differ under collective bargaining agreements.
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Career-Linked Recognition & Rewards — Programs include short-term incentive pay, SPOT awards, and an annual Employee Excellence Award of $5,000. These mechanisms add cash recognition beyond base pay when available.
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What We Do
Constellis is the largest and most diverse non-financial risk management company in the United States, providing operational support and risk management services to safeguard people and infrastructure globally.
