Senior Backend Engineer at Transmit Security (Tel Aviv-Yafo, Israel)

Transmit Security· Tel Aviv-Yafo, Israel·5h ago

Role details

Level

Senior

Job description

We offer the industry’s only platform that fuses customer identity and anti-fraud solutions: customer identity management, identity verification, and fraud prevention. We sell to industries with large, consumer-facing businesses such as banking, financial services, insurance, fintech, gaming, ecommerce/retail, telco/media, and utilities.

About the Role

FlexID is Transmit Security’s identity orchestration platform, trusted by some of the world’s largest financial institutions, including Citi, HSBC, UBS and, here in Israel, Bank Leumi, to authenticate millions of their customers. We’re looking for a senior backend engineer to build and evolve a mission-critical system where reliability, security and correctness really matter.

What you’ll do:

Build new features: login flows, passkeys (FIDO2/WebAuthn), device binding, policies and APIs
Write backend code every day. We're in Scala, with Akka, MongoDB, Postgres, Redis and Kafka
Keep the codebase healthy: upgrade stuff, fix vulnerabilities, add tests, clean things up without breaking customers
Dig into real production issues when a customer needs help, and enjoy solving them
Help teammates grow through reviews and good conversations
Use AI tools like Claude Code day to day

What you’ll need:

B.Sc. in Computer Science or Engineering from a leading university
5+ years building large-scale backend systems
Strong system design and architecture skills
Strong backend experience in Java, Scala, C#, or TypeScript. We develop with Claude Code, so strong engineering fundamentals matter more than any specific language
An ownership mindset: independent, persistent, and focused on getting things done

Nice to have:

Identity management / authentication protocols (OAuth, OIDC, SAML, FIDO)
Web security experience
Experience delivering enterprise software, both on-prem and cloud
Hands-on experience with AI coding tools (Claude Code, Cursor, etc.)

#LI-TL1 #LI-Hybrid

Why work at Transmit Security

Culture: Focus on innovation in a challenging, fast-paced security domain. Employee rating 3.7/5 on LinkedIn (182 reviews), with strongest marks for compensation (3.9) and career growth (3.7).
Work model: Hybrid/office presence required in Tel Aviv and Boston hubs; operates in 19 countries.
Engineering culture: Strong emphasis on R&D – 37% of employees are in technical roles. Teams work on cutting-edge AI, fraud detection, and identity security.
Perks: Not explicitly detailed, but competitive compensation suggests typical startup/scale-up benefits (equity, health, etc.).
Growth opportunity: 28 active job postings (as of mid-2026) with high year-over-year hiring growth (+64.7%), indicating expansion.

About Transmit Security

Company Overview

One-liner: Transmit Security provides a unified platform for customer identity management, fraud prevention, and identity verification, enabling businesses to build secure, end-to-end digital identity journeys.
Entity Type: Private (Series A, raised $583M total)
Headquarters: Tel Aviv, Israel (dual headquarters also in Boston, Massachusetts, USA)
Founded: 2014
Founders: Mickey Boodaei and Rakesh Loonkar

Core Business

Primary industries: Cybersecurity, Identity and Access Management, Fraud Prevention, Customer Identity and Access Management (CIAM)
Target customers: B2B, primarily large enterprises in banking, insurance, retail, and healthcare
Mission/purpose: To give businesses the modern tools they need to build secure, trusted and end-to-end digital identity journeys to innovate and grow.

Products & Services

Mosaic: Identity Orchestration: A no-code, drag-and-drop platform to build, test, and optimize user journeys across identity, authentication, fraud, and verification processes. Supports journey-time orchestration for both human and machine identities. (Type: SaaS platform)
Customer Identity & Access Management (CIAM): AI-driven solution for managing customer identities, authentication, and authorization.
Fraud Detection & Response: Real-time fraud prevention engine using machine learning and behavioral analytics to detect account takeover, payment fraud, and identity fraud.
Identity Verification: Automated verification of identities using document checks, biometrics, and liveness detection.
AI-Driven Threat Intelligence: Dark web research and threat intelligence to identify emerging attack patterns.

Market Standing

Valuation: Not publicly disclosed
Key Metrics:
- Annual Revenue: $132.4M (estimated, per LinkedIn data)
- Total Funding: $583M (largest round: $543M Series A in June 2021)
Notable Investors/Partners: Insight Partners, General Atlantic, Citi Ventures, GS Growth, Geodesic Capital, Artisanal Ventures
Growth Signals: 265 employees (+3.2% YoY); recognized as a Leader in the 2025 Gartner Magic Quadrant for Access Management; serves organizations collectively responsible for over $3.1 trillion in annual commerce; named one of Fast Company’s Most Innovative Security Companies (2022)

Competitive Advantages

Unified platform: Combines customer identity, fraud prevention, and identity verification into a single orchestration layer, eliminating silos.
AI-first approach: Proprietary fraud prevention engine with high accuracy; active dark web monitoring and generative AI threat research.
No-code orchestration: Mosaic allows enterprises to rapidly build and modify identity workflows without engineering resources.
Enterprise scale: Proven in some of the world’s largest banks and insurers, handling high-volume, mission-critical identity transactions.

Strategic Focus

Expanding AI capabilities to counter generative AI-driven identity attacks (e.g., deepfakes, automated fraud).
Strengthening Access Management leadership (recent Gartner MQ Leader designation).
Growing channel and partner ecosystem (recent channel leadership appointments).
Continuing R&D in identity orchestration and machine identity protection.

Sources

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Why work at Transmit Security

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