{"id":1738959,"url":"https://alion.io/job/transmit-security-security-research-2","title":"Security Research","company":{"id":49154,"name":"Transmit Security","domain":"transmitsecurity.com","url":"https://alion.io/company/transmit-security","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":79,"open_postings":15,"ghost_share":0.267,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":128,"computed_at":"2026-10-05T05:45:15Z"}},"role":"Finance","role_family":"Finance","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Tel Aviv, Israel"],"countries":["IL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":47000,"max_usd":132000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2017},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"VPN","optional":false}],"status":"live","first_seen_at":"2026-10-02T10:56:41Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-05T23:40:22Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":2},"description":"We offer the industry’s only platform that fuses customer identity and anti-fraud solutions - customer identity management, identity verification, and fraud prevention. \nWe sell to industries with large, consumer-facing businesses such as: banking, financial services, insurance, fintech, gaming, ecommerce/retail, telco / media, utilities, etc.\nAbout the Role:\nTransmit Security is a top player in its field and is heading into an exciting year. In this role, you will take an integral part in researching, designing, and improving advanced fraud and abuse detection capabilities for a cutting-edge SaaS product.\nWe are looking for a hands-on security researcher who combines an attacker mindset, fraud-domain curiosity, strong technical depth, and data analysis skills. You will investigate real-world fraud patterns, reproduce attacker techniques, analyze telemetry, enrich our data collection capabilities, discover new security signals, and work closely with product, data, and engineering teams to turn research insights into production-grade detection and prevention mechanisms.\nThis role is especially relevant for researchers with experience in browser technologies, mobile-native applications, or both. You may work on desktop and mobile browsers, browser APIs, browser automation, client-side signals, native mobile applications, Android/iOS behavior, mobile security, emulators, device signals, and mobile automation.\nYou will help expand our visibility into new signals and patterns that improve fraud detection, model performance, and customer protection.\nIf you are a talented researcher who enjoys solving complex problems, working with messy real-world data, and building practical defenses against modern fraud and abuse, we want you to join our team.\nWhat you’ll do:\nResearch emerging fraud and abuse techniques across account takeover, bots, automation, phishing, social engineering, device spoofing, emulators, remote access tools, suspicious network infrastructure, and related attack vectors.\nIdentify, design, and validate new data collection opportunities, security signals, behavioral patterns, device indicators, browser indicators, and mobile app indicators.\nAnalyze real-world telemetry, customer-provided labels, behavioral signals, device signals, network indicators, and attack patterns to identify detection opportunities.\nReproduce attacker techniques in lab and production-like environments, generate telemetry, identify detection gaps, and translate findings into detection logic.\nDesign, validate, and tune detection and prevention mechanisms with attention to coverage, explainability, false positives, customer impact, and production stability.\nBuild research infrastructure, analysis workflows, and internal tools using Python.\nProduce robust data features that can later be used by machine learning models, detection logic, rules, dashboards, and customer-facing insights.\nWork with model training pipelines, evaluate model behavior, compare training and validation results, and help determine whether new features improve detection quality.\nCollaborate closely with data science, engineering and product, teams to take ideas from research hypothesis through validation, implementation, monitoring, and production feedback.\nStay up to date with fraud trends, attacker tooling, automation frameworks, browser abuse techniques, mobile abuse techniques, malware behavior, phishing techniques, and underground ecosystem developments.\nCommunicate findings clearly to technical and non-technical stakeholders, including recommended actions, tradeoffs, expected impact, and model/detection quality considerations.\nWhat you’ll need:\nAt least 3 years of experience in security research, fraud research, detection engineering, threat research, mobile security research, browser security research, or a similar hands-on technical role.\nBachelor’s degree in Computer Science, Cybersecurity, Data Science, or a related field or equivalent hands-on experience.\nStrong hands-on experience with at least one of the following areas:\nDesktop or mobile browsers, browser APIs, browser automation, browser fingerprinting, web signals, or client-side web security.\nNative mobile applications for Android or iOS, mobile OS behavior, device signals, emulators, mobile automation, app instrumentation, or mobile security.\nStrong understanding of web technologies, mobile technologies, APIs, application behavior, and modern attack techniques.\nStrong Python skills and experience building research tools, automation, data analysis workflows, detection prototypes, or feature engineering pipelines.\nExperience analyzing messy real-world data, investigating anomalies, validating hypotheses, and drawing practical conclusions from incomplete information.\nFamiliarity with machine learning training and validation concepts, such as train/test split, validation sets, overfitting, leakage, feature quality, precision/recall, false positives, false negatives, and model evaluation.\nAbility to produce data features in a structured, reliable, and model-friendly way.\nAbility to think like an attacker while designing reliable, scalable, and explainable defenses.\nStrong problem-solving skills, independence, persistence, and a “getting things done” attitude.\nExcellent communication and interpersonal skills.\nAbility to work closely with engineering, product, and data science teams and translate research insights into practical product capabilities.\nAdvantages:\nExperience with both browser-based and mobile-native research.\nExperience with fraud domains such as account takeover, new account fraud, identity theft, money mule activity, payment fraud, or first-party fraud.\nKnowledge of bots, automation frameworks, credential stuffing, scraping, and anti-detection techniques.\nExperience with browser internals, JavaScript runtime behavior, DOM APIs, WebView behavior, browser automation, headless browsers, or browser anti-detection techniques.\nExperience with mobile app lifecycle, permissions, sensors, networking, storage, mobile identifiers, rooted/jailbroken devices, hooking, instrumentation, repackaging, or anti-tampering techniques.\nExperience with browser fingerprinting, mobile fingerprinting, device intelligence, behavioral biometrics, or client-side telemetry.\nExperience with malware analysis, phishing kits, remote access tools, proxy/VPN infrastructure, or underground fraud ecosystems.\nExperience with detection quality measurement, false-positive analysis, rule tuning, model evaluation, feature evaluation, or production monitoring.\nExperience using notebooks, pandas, SQL, data visualization tools, or other analysis environments for research and validation.\nExperience working with data scientists, ML engineers, or ML training pipelines.\n#LI-TL1 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