Constellis

Role Description 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. 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. - A flexible benefits package that reflects its commitment to creating a diverse and supportive workplace.

Role Description This early career position supports case research, records analysis, financial reconciliation, and professional report preparation in a compliance-driven government contracting environment. The position requires strong written communication skills, sound judgment, and the ability to manage multiple assignments while meeting strict contractual standards. The selected candidate will work with sensitive information and receive regular editorial feedback to ensure accuracy, clarity, and compliance. Responsibilities - Case Research & Reporting - Conduct research and develop sources to complete assigned case leads. - Perform detailed record checks and verifications to ensure accuracy and contractual compliance. - Analyze discrepancies, resolve lead issues, and document findings. - Prepare clear, well-structured written summaries and investigative reports. - Revise written work based on editorial review and quality standards. - Financial & Administrative Support - Prepare and reconcile petty cash and escrow account transactions. - Process invoices, reconcile monthly credit card statements, and prepare payments for services. - Documentation & Workflow Management - Maintain organized documentation in accordance with internal policies and contract requirements. - Manage multiple active assignments at different stages while meeting deadlines. - Provide additional operational support as needed. - May be required to lift and carry awkward items weighing up to 25 lbs. - Requires intermittent standing, walking, sitting, squatting, stretching and bending throughout the workday. Qualifications - U.S. Citizenship. - Minimum 18 years of age. - High School diploma or general education degree (GED). - Minimum of 2 years professional experience reviewing, analyzing, or summarizing documentation (any industry). - Minimum of 2 years of experience in a customer service or client-facing role demonstrating professionalism and responsiveness. - Strong written communication skills and the ability to produce clear, organized reports. - Demonstrated ability to manage competing priorities in a deadline-driven environment. - High level of discretion when handling sensitive or confidential information. - Strong organizational skills and attention to detail. - Ability to interpret written procedures and follow structured compliance guidelines. - Basic mathematical proficiency, including financial reconciliation and simple calculations. - Proficiency in Microsoft Office (Word, Excel, PowerPoint) and comfort working with databases and online research tools. Preferred Qualifications - Experience in investigative, legal, compliance, audit, or government-related environments. - Experience supporting government contracts or working within structured regulatory frameworks. - Familiarity with researching and navigating law enforcement, court, or archived records databases, including an understanding of jurisdictional distinctions and record accessibility. - Active Top Secret security clearance. Important Applicant Instructions - Provide a tailored resume reflecting relevant experience in records review, research, reporting, and multitasking. - To be considered, applicants must submit a writing sample (300 words or fewer) that demonstrates their ability to summarize information clearly and professionally. - Your writing sample should address: - Why you are interested in this role. - How your experience has prepared you to manage multiple assignments. - Your experience preparing written reports. - All submitted materials, including the writing sample, must be the applicant’s original work. The use of AI-generated or AI-assisted content is strictly prohibited, as AI tools are not permitted in the performance of this role. - Applications that do not include all required materials, exceed the stated length limits, or contain significant grammatical or formatting errors will not be considered. Attention to detail will be evaluated as part of the screening process. Equal Opportunity Employer Race/Color/Sex/Sexual Orientation/Gender Identity/Disability/Vet

Role Description The Recruiting Coordinator (RC) supports centralized onboarding execution from offer acceptance through hire and start date. This role ensures candidates complete all pre-employment requirements and onboarding milestones efficiently, accurately, and in compliance with organizational and client standards. RC team members operate within a shared-service model supporting multiple programs through standardized workflows. Responsibilities - Initiate onboarding activities following recruiter handoff. - Coordinate background investigations and drug/medical screenings. - Submit and track security clearance requests. - Schedule required training and onboarding activities. - Maintain onboarding status tracking in designated systems. - Serve as primary candidate contact post-offer acceptance. - Provide clear guidance on onboarding requirements and timelines to candidates, recruiters, and hiring managers. - Monitor candidate progress and proactively resolve delays. - Ensure completion of required documentation. - Maintain accurate onboarding records. - Support audit readiness through proper documentation tracking. - Partner with recruiters to ensure clean onboarding handoff. - Communicate onboarding risks or delays to RC Lead. - Assist with gathering and reporting of metrics during the onboarding process. May be asked to create presentations, memos, or reports. - May conduct occasional recruiting duties such as posting jobs, sourcing candidates, or scheduling interviews. - Assist with ad hoc projects and HR Recruiting communications portal by reviewing and resolving ticketing requests. - Work is typically based in a busy office environment and subject to frequent interruptions. Business work hours are Monday-Friday standard core hours; however, some extended or weekend hours may be required. - Other duties as assigned. Qualifications - 1+ years’ experience in recruiting coordination, onboarding operations, administrative assistance, or HR operations. - At least 1 year of experience providing administrative or program support in a professional office environment. - 1 year of experience maintaining accurate records, trackers, or databases, including data entry, updates, and reporting. - Experience supporting multiple tasks or requests simultaneously while meeting deadlines. - Able to work independently and collaboratively within a team. - Eager to research, learn independently, and master new systems. - Strong written and verbal communication skills sufficient to interact with internal teams and provide clear instructions or status updates. - Ability to follow defined workflows and standard operating procedures with a high level of accuracy. - Ability to handle sensitive or confidential information in accordance with company and program requirements. - Strong attention to detail. - Ability to manage high-volume workflows. - Excellent organizational and communication skills. - High school diploma or equivalent. - Proficient in Microsoft Office products, including: - Excel (e.g., filters, formulas, create pivot tables, conduct vLookup, conduct basic data analysis) - Word (document formatting) - PowerPoint (updating or creating presentations using templates) - Outlook (sending/receiving email and calendar invites, mail merge, inbox management) - May lift and carry items up to 25 lbs. - Intermittent standing, walking, sitting, squatting, stretching, and bending throughout the workday.

Role Description The Case Manager scrutinizes reports of investigations submitted by the Field Investigators to ensure accuracy, completeness, and timely submission to customer. - Provide advice and guidance to investigators on investigative and formatting requirements. - Review case work and provide feedback regarding quality and completeness. - Contact Field Investigators regarding cost and quality exceptions with their work. - Monitor pending cases to ensure compliance with delivery due dates and track submission of investigative leads. - Prioritize cases where noteworthy or derogatory information is developed. - Monitor pending cases, review and revise reports of investigation. - Check for quality and take necessary actions to complete case. - Annotate Investigator Quality Performance remarks. - Schedule additional leads as discovered in investigation. - Assist CQC Manager process Customer complaints, assign Investigator to determine validity of complaint and prepare response for customers and Project Managers. - Interview Sources as part of the QA process. - Provide daily support and assistance to PMs, managers/Investigative Supervisors and Contract Investigators regarding quality issues. - Prepare statistical reports for customer reporting/Project Managers. - Other duties as assigned. Business work hours are Monday-Friday from 8:00 am to 5:00 pm, however some extended hours may be required. Qualifications - Must be a U.S. Citizen and at least 18 years of age. - Bachelor’s Degree from four-year college or university; minimum five (5) years experience in background investigations and knowledge of the background investigation process; or equivalent combination of education and experience. - High reasoning skills, including ability to solve practical problems and deal with a variety of concrete variables in situations where only limited standardization exists. - Ability to interpret a variety of instructions furnished in oral, written, diagram, or schedule form. - Intermediate math skills, including ability to calculate figures and amounts. - High language skills, including ability to read, analyze, and interpret general business periodicals, professional journals, technical procedures, or governmental regulations. - Ability to write reports, business correspondence, and procedure manuals. - Ability to present information in an effective manner to senior management. - High computer skills and ability to work in a MS Windows based operating environment, including proficiency with Microsoft Office (Word, Excel, PowerPoint), Internet and E-mail. - Must be U.S. citizen and able to successfully undergo background investigation to obtain U.S. Government security clearance. - Active or ability to obtain and maintain a federal security clearance as required by the contract. - May be required to lift and carry awkward items weighing up to 25 lbs. - Requires intermittent standing, walking, sitting, squatting, stretching and bending throughout the workday. Benefits - Constellis offers a comprehensive, total rewards package that includes competitive compensation. - A flexible benefits package that reflects its commitment to creating a diverse and supportive workplace.