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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Back-End/ Platform Engineer - **Company:** Blackrock, Inc. - **Location:** Washington, DC, United States - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Application Integration Architecture, Systems Engineering, User Authentication, C Sharp (Programming Language), Cyber Security, Continuous Integration, Information Engineering, Data Security, Distributed Systems, Python (Programming Language), Apache Maven, Performance Tuning, Rapid Prototyping Process, Ansible, Zero Trust Network Access, Software Engineering, Systems Architecture, Systems Integration, Software Security, Backend, SC Clearance, Containerization, Kubernetes, Information Technology, Deployment Automation, Integration Frameworks, Data Management, Terraform, Devsecops, Docker, Golang, Programming Languages - **Published:** October 18, 2026 - **Apply:** https://www.thejobnetwork.com/job/0458ad11-e57f-4d38-8136-49615aa8657b/backend-platform-engineer ## About the Role Clearance: Active Secret clearance required. Must possess or be eligible to obtain TS/SCI clearance., * U.S. Citizenship and active Secret security clearance. * Ability to obtain and maintain TS/SCI clearance. * Demonstrated experience in back-end software development, platform engineering, or systems integration. * Strong knowledge of APIs, distributed systems, scalable application design, and performance optimization. * Experience with infrastructure-as-code, containerization, CI/CD pipelines, and automated deployments. * Experience deploying or operating software within secured or restricted environments. * Working knowledge of cybersecurity controls, authentication, authorization, and secure data-access practices. * Strong analytical, troubleshooting, technical documentation, and communication skills. * Ability to collaborate with multidisciplinary engineering teams and Government stakeholders. * Ability to support embedded, operator-facing work and rapidly evolving mission requirements. * Valid U.S. passport and ability to travel domestically and internationally., * Bachelor's degree in Computer Science, Software Engineering, Systems Engineering, Information Technology, or a related field. * Active TS/SCI clearance. * Experience operating within SIPRNet or comparable classified environments, including accreditation or security authorization activities. * Familiarity with the Maven ecosystem and its application or integration architecture. * Prior military service or experience supporting DoD, Intelligence Community, or aerospace and defense programs. * Proficiency with Python, Java, C#, Go, or similar back-end programming languages. * Experience with Docker, Kubernetes, Terraform, Ansible, or comparable infrastructure technologies. * Familiarity with DevSecOps, Zero Trust architecture, RMF, and secure software-development practices. * Experience supporting operational experimentation, rapid prototyping, or technology fielding. * Relevant professional certifications in cloud architecture, cybersecurity, DevSecOps, or systems engineering; equivalent demonstrated experience accepted. ## Description Travel: Approximately 25% CONUS and OCONUS travel in support of operational experimentation, technology demonstrations, systems integration, and fielding activities., Blackrock Strategy is seeking a Back-End / Platform Engineer to design, develop, deploy, and sustain secure application services and infrastructure supporting mission-critical operational capabilities across unclassified and classified environments. This position leads back-end development, platform engineering, deployment automation, and systems integration to ensure reliable, scalable, and secure application performance. The engineer will collaborate with product, data, and operational teams to connect disparate systems, accelerate capability delivery, and support continuous improvement. Working directly with military operators and Government stakeholders, the successful candidate will translate operational challenges into practical technical solutions, validate performance in real-world environments, and support rapid product iteration. The position also provides architectural and technical guidance to the Product Lead., * Design, develop, and maintain scalable back-end services, APIs, and integration frameworks supporting mission-critical applications. * Architect and optimize distributed systems for reliability, performance, security, and interoperability. * Develop and maintain CI/CD pipelines, infrastructure-as-code, containerized environments, and automated deployment processes. * Lead deployment and integration activities across unclassified, SIPRNet, and other authorized secure environments. * Implement authentication, authorization, encryption, access controls, and security configurations consistent with applicable requirements. * Support system accreditation, security authorization, and cross-domain data-handling requirements. * Collaborate with data engineering and product teams to establish reliable service interfaces, data-access patterns, and integration architectures. * Support system-of-systems architecture, including interface standards, component boundaries, and technical tradeoff assessments. * Work directly with operational users to troubleshoot issues, validate capabilities, and incorporate feedback into product improvements. * Develop technical documentation supporting system architecture, deployment, operational procedures, and long-term Government sustainment., * Primarily on-site support at Government facilities, classified environments, and operational locations within the NCR. * Regular collaboration with military operators, Government leadership, and multidisciplinary technical teams. * Field activities may involve prolonged sitting or standing and exposure to varying environmental conditions. * Standard Monday-Friday schedule, with occasional extended hours or weekend support based on mission requirements. * Approximately 25% CONUS and OCONUS travel.