Description:We’re looking for a Senior Back End Engineer to join an early-stage startup working at the cutting edge of aerospace and satellite communications. This role blends backend engineering, data infrastructure, and light ML within a mission-driven environment that’s optimizing space-to-ground communications.You’ll work hands-on with a small, senior team under the guidance of technical founders. We value versatility - this is an opportunity for someone who enjoys jumping between APIs, optimization models, RF systems, and backend services.English fluency is a MUST for this role! Only candidates with level C1 or C2 will be considered:A1 BeginnerA2 ElementaryB1 IntermediateB2 Upper-IntermediateC1 AdvancedC2 ProficientResponsibilities:Build and maintain data pipelines and backend services using Python and RustDevelop systems that optimize communication between satellites and EarthContribute to API design, predictive ML integration, and algorithmic optimizationExplore and model graph-based communication networks and topologiesCollaborate with domain experts in RF/telecom to engineer practical solutionsParticipate in the full development lifecycle: design, test, deploy, monitor, iterateRequirements:6+ years in backend/data engineering or full-stack developmentStrong experience with Python and modern software engineering practicesExposure to graph theory, optimization problems, or predictive modelingAbility to work across abstraction layers—from infrastructure to application logicSelf-starter comfortable in startup environments and highly cross-functional workExperience with API design and scalable microservice architectureExcellent written and verbal communication skillsBackground in predictive ML or data-driven optimizationNice To Have:Experience in aerospace, space systems, or satellite communicationsFamiliarity with RF systems, networking, routers, or data center architecturesWorking knowledge of Rust