{"id":1541188,"url":"https://alion.io/job/st-engineering-senior-radio-frequency-rf-engineer-contract","title":"Senior Radio Frequency (RF) Engineer (Contract)","company":{"id":1818473,"name":"ST Engineering","domain":"stengg.com","url":"https://alion.io/company/stengg","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":{"grade":"A","score":100,"open_postings":7,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":17,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":40000,"max_usd":81000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":358},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false},{"name":"MATLAB","optional":false},{"name":"Red Teaming","optional":false},{"name":"Sensor Fusion","optional":false},{"name":"Wi-Fi","optional":false}],"status":"closed","first_seen_at":"2026-09-30T21:10:40Z","employer_posted_date":"2026-09-30","last_verified_at":"2026-10-22T20:33:43Z","board_verified":false,"closed_at":"2026-10-22T20:33:43Z","days_open":21,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":21},"description":"About ST Engineering\nST Engineering is a global technology, defence, and engineering group with offices across Asia, Europe, the Middle East, and the U.S., serving customers in more than 100 countries. The Group uses technology and innovation to solve real-world problems and improve lives through its diverse portfolio of businesses across the aerospace, smart city, defence, and public security segments. Headquartered in Singapore, ST Engineering ranks among the largest companies listed on the Singapore Exchange.\nOur history spans more than 50 years, and our strategy is underpinned by our core values - Integrity, Value Creation, Courage, Commitment and Compassion. These 5core values guide every aspect of our business and are embedded in our ST Engineering culture - from the people we hire, to working with each other, to our partners and customers.\nAbout our Business - Advanced Networks & Sensors\nOur Advanced Networks & Sensors business specializes in platform digitalization, advanced connectivity, and cutting-edge manufacturing. This diversity of capabilities presents a range of roles through which you can contribute to the development of innovative, secure, and patented products. Join our team and play a crucial role in developing tomorrow’s technology and connectivity solutions and services to sectors spanning defence, public security, government, and the commercial realm. Your work will have a global impact as we empower customers through advanced communications, intelligent sensors, and the deployment of AI-enabled Edge applications for mission-critical roles.\nTogether, We Can Make A Significant Impact\nWe are seeking a highly skilled and motivated Senior RF Engineer to lead the design, development, and deployment of Counter Unmanned Aerial System (CUAS) technologies with a primary focus on Radio Frequency (RF) spectrum engineering for drone detection, classification, and mitigation. The ideal candidate will have hands-on experience in integrating multi-sensor CUAS platforms and a deep understanding of the RF landscape including signal analysis, direction finding, and electronic countermeasures.\nYou will play a key role in delivering mission-critical capabilities to protect high-value assets and critical infrastructure. This role requires technical leadership, field-readiness, and a willingness to support high-stakes events, which may require extended hours under operational pressure.\nBe Part of Our Success\nLead the design and implementation of RF-based detection, classification, and tracking solutions for CUAS applications.\nConduct RF spectrum surveys, characterize RF signatures, and develop algorithms for drone signal identification.\nIntegrate and optimize RF and non-RF sensor subsystems (e.g., radar, EO/IR, acoustic) into a unified CUAS platform.\nCollaborate with software and hardware teams to ensure seamless data fusion, system interoperability, and mission readiness.\nProvide on-site support for live demonstrations, critical infrastructure protection events, and emergency deployments-often requiring long or irregular hours.\nAuthor technical documentation, including CONOPS, interface control documents, and test plans/reports.\nLead or contribute to system validation and verification efforts including lab, field, and red team testing.\nLiaise with government customers, defence partners, and internal stakeholders to refine requirements and improve system capabilities.\nMonitor evolving UAS threats and maintain up-to-date knowledge of RF protocols, spectrum regulations, and counter-drone technologies.\nQualities We Value\nKnowledge in Electrical Engineering, RF Engineering, or a related technical field.\nPossess 3 years of experience in RF engineering, signal analysis, or electronic warfare.\nDemonstrated expertise in RF spectrum analysis, signal classification, and protocol decoding (e.g., Wi-Fi, ISM bands, remote control links).\nExperience with CUAS platforms, sensor fusion, or related Defence systems.\nStrong background in systems integration, including RF front ends, SDRs, and embedded systems.\nProficiency with tools such as MATLAB, GNU Radio, SDR platforms (e.g., Ettus/USRP, HackRF, BladeRF), spectrum analyzers, and direction-finding equipment.\nAbility and willingness to support high-priority operational events, which may include extended or irregular working hours.\nExcellent communication, leadership, and documentation skills.\nExperience with machine learning for RF signal classification.\nKnowledge of military communications protocols and electronic support measures (ESM) is preferred.\nFamiliarity with DoD systems engineering frameworks and MIL-STD testing protocols.\nSingaporean only\nOpen to contract, renewal\nOur Commitment That Goes Beyond the Norm\nAn environment where you will be working on cutting-edge technologies and architectures.\nSafe space where diverse perspectives are valued, and everyone’s unique contributions are celebrated. \nMeaningful work and projects that make a difference in people’s lives.\nA fun, passionate and collaborative workplace.\nCompetitive remuneration and comprehensive benefits.\nWorking Location: Jurong 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