Job Title: Senior Full Stack Software Engineer (Kubernetes / Python / React / Go) Company Name: Rackner Job Url: https://job-boards.greenhouse.io/embed/job_app?for=rackner&jr_id=69b113260b2db6275c061eb0&token=4669148005&utm_source=jobright Job Description: Senior Full Stack Software Engineer (Kubernetes / Python / React / Go) Remote Senior Software Engineer — R&D Platforms Location: United States (Remote) Travel: Periodic engineering collaboration sessions Role Overview Rackner is seeking a Senior Software Engineer to help design, prototype, and build modern platform capabilities within a focused engineering initiative. In this role, you will work directly with experienced technical leaders to translate ideas into working software; developing full-stack applications, backend services, and distributed systems using modern cloud-native technologies. The environment emphasizes ownership, experimentation, and practical engineering outcomes. Engineers are trusted to move quickly from concept to implementation while contributing to architecture and system design decisions. This role is well suited for engineers who enjoy solving difficult technical problems, building scalable systems, and working in environments where engineers are expected to take initiative and deliver meaningful technical outcomes. What You'll Do Design and develop modern full-stack applications and distributed systems Build backend services using Python (including frameworks such as FastAPI) and Go Develop frontend interfaces using React and modern JavaScript frameworks Deploy and operate applications in containerized and Kubernetes-based environments Rapidly prototype and validate new platform capabilities Contribute to architecture and system design discussions Build scalable APIs and services supporting evolving platform needs Use modern engineering tooling, including AI-assisted development tools, to accelerate development Collaborate with engineers and technical leadership to move concepts into production-quality systems What You Bring Strong candidates typically bring experience across several of the following areas: Professional experience building full-stack software systems Backend development using Python, including frameworks such as FastAPI Backend systems development using Go Frontend development using React and modern JavaScript Experience deploying applications using Docker and Kubernetes Familiarity with microservices, APIs, and distributed systems Ability to work independently, solve complex problems, and deliver working software quickly Comfort operating in environments where engineers take ownership of technical outcomes Experience using modern development tooling and engineering workflows Travel This role includes periodic travel for engineering collaboration sessions, including several extended working sessions during the year. Travel schedules are planned in advance and designed to support focused development and team collaboration. Clearance Candidates must be eligible to obtain a U.S. government security clearance. U.S. citizenship is required for clearance eligibility. About Rackner Rackner is a software consultancy focused on building mission-critical systems for the U.S. government. Our engineers work across AI/ML, DevSecOps, cloud platforms, and distributed systems, supporting federal agencies and national security initiatives. Engineering teams collaborate closely with technical leadership and program stakeholders to design and build scalable platforms addressing complex operational challenges. Engineers are encouraged to take ownership of their work, contribute ideas, and help shape the systems they build. Benefits & Perks Competitive compensation + performance opportunity Medical, dental, vision coverage 401(k) with company contribution/match Paid time off + federal holidays (as applicable) Remote/hybrid flexibility (as role allows) Training/certification support (BI, analytics, healthcare data standards) Equal Opportunity Rackner is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or other protected characteristics.   #SoftwareEngineering #FullStackEngineering #Kubernetes #Python #FastAPI #GoLang #ReactJS #DistributedSystems #CloudNative #DevSecOps #GovTech #HiringEngineers Create a Job Alert Interested in building your career at Rackner? Get future opportunities sent straight to your email. Create alert Apply for this job * indicates a required field First Name* Last Name* Preferred First Name Email* Phone Country Phone Resume/CV* Attach Enter manually Accepted file types: pdf, doc, docx, txt, rtf Cover Letter Attach Enter manually Accepted file types: pdf, doc, docx, txt, rtf Education School Select... Degree Select... Discipline Select... End date year Add another LinkedIn Profile Website Are you legally authorized to work in the United States?* Select... Due to federal contract requirements, this role requires U.S. citizenship and eligibility to obtain a U.S. government security clearance. Are you a U.S. citizen and eligible to obtain a clearance?* Select... Which of the following technologies have you worked with in a professional environment? (Select all that apply) * Python Go / Golang React or modern JavaScript frameworks FastAPI or similar backend frameworks Kubernetes Docker or containerized environments Distributed systems or microservices None of the above Briefly describe a software system or platform you helped build that you are proud of. What problem did it solve and what was your role in building it?* What tools or development workflows do you typically use when building or debugging software systems?* This role involves working closely with other engineers to design and prototype new capabilities. What type of engineering environment helps you do your best work?* Have you deployed or operated applications in a containerized or Kubernetes environment? * Yes — regularly Yes — occasionally Familiar but limited experience No Many engineers now use tools such as GitHub Copilot or similar AI coding assistants. Have you used AI-assisted development tools in your workflow? * Yes — regularly Yes — occasionally Familiar but limited experience No Desired salary range? Voluntary Self-Identification For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file. As set forth in Rackner’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law. Gender Select... Are you Hispanic/Latino? Select... Race & Ethnicity Definitions If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follo