Principal Engineer @ Sophos | Email Security & Threat Detection at Scale | Distributed Systems, AWS, Kafka, Java | GenAI/LLM Detection Platforms | Cloud Security

Bengaluru, Karnataka, India

Bengaluru, Karnataka, India

Bengaluru, Karnataka, India

Greater Kuala Lumpur

Pune Area, India

Bengaluru, Karnataka, India







B.Tech, Information Technology
Galgotias College of Engineering and Technology
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Download Tal BossPrincipal Engineer @ Sophos | Email Security & Threat Detection at Scale | Distributed Systems, AWS, Kafka, Java | GenAI/LLM Detection Platforms | Cloud Security
Principal / Staff Software Engineer with 12+ years of experience designing and building large-scale, distributed, cloud-native next-generation email security systems focused on AI-driven threat detection across security, enterprise platforms, and telecom domains. I specialize in hands-on backend and platform engineering, system design, and performance optimization for high-throughput, highly reliable services. My core expertise lies in Java, Spring Boot, AWS, microservices, and distributed systems, with strong experience building secure APIs, event-driven architectures, and scalable backend platforms. I have worked extensively on cloud-native architectures, Infrastructure as Code, CI/CD pipelines, and containerized deployments using Docker, Kubernetes, EKS, OpenShift, and Helm. I enjoy solving complex system-level problems—from designing HLD/LLD and data flows to improving latency, reliability, and operational resilience in production systems. I am comfortable working end-to-end: architecture, implementation, performance tuning, and production support. My core expertise lies in: • Designing high-throughput event-driven systems (Kafka, microservices) • Building cloud-native platforms on AWS (ECS, Lambda, DynamoDB) • Developing real-time security detection pipelines • Scaling systems processing millions of events Recent work: • Architected a shared GenAI/LLM inference platform for email threat detection, consolidating model serving across the security org • Led root-cause analysis and remediation for an ML detection service failure during a Kafka outage — fix shipped, failure-mode analysis extended across the service • Cut AWS S3 cost on a high-volume workload by 20% by re-architecting write patterns • Built cross-product threat-intelligence signal sharing across email, endpoint, firewall, and XDR I’m particularly interested in: • AI-powered security platforms • Large-scale distributed systems • Real-time data processing architectures Always open to discussing system design, AI in security, and platform engineering. I am passionate about building simple, scalable, and resilient systems and continuously learning modern engineering practices. Open to Principal / Staff Software Engineer (IC) opportunities focused on platform, backend, and distributed systems. How I work: I go after the problems nobody owns — reliability gaps, cost blowouts, the architecture decision three teams are each half-making. Most of my impact lands through other teams' roadmaps, not my own commits.
Bengaluru
claude code
codex
cursor
github copilot
Microsoft Copilot
Synthesia
Principal Engineer 1 at Sophos, Jan 2024 - Present · 2 yrs 9 mos, Bengaluru, Karnataka, India, Own organization-level architecture for email security processing and ML-based threat detection. - Architect and implement secure, distributed backend systems processing millions of email transactions daily, with strong guarantees around availability, latency, and data integrity. - Building AI/LLM driven email security platform. - Drive design decisions for cloud-native, event-driven services using Java, Kafka, AWS, and microservices architecture. - Lead deep technical problem-solving across scalability, performance, and resilience, including latency reduction and reliability improvements. - Define and evolve core architectural patterns, APIs, and best practices adopted across teams to improve long-term maintainability and delivery speed. - Act as a technical anchor for complex initiatives, providing hands-on guidance from design through production rollout and operations. - Identified and re-architected S3 write patterns on a high-volume workload, cutting PUT-request spend by 20%. Built multi-tenant cost attribution so teams see their own spend. Stack: Java, AWS (S3, SQS, Lambda), Kafka, Postfix, Kubernetes, Python, LLM inference
Senior Software Engineer 2 at Sophos, Nov 2021 - Jan 2024 · 2 yrs 3 mos, Bengaluru, Karnataka, India, Worked on Sophos’ enterprise Email Security platform, contributing to the design and development of scalable, cloud-native backend services. - Designed and implemented email threat detection pipelines, including spam, impersonation, and ML-based scanning workflows. - Built and enhanced microservices using Java and Spring Boot, focusing on scalability, fault tolerance, and performance. - Integrated third-party services including machine learning models and Google APIs to extend detection capabilities. - Collaborated closely with product and security teams to translate complex requirements into reliable technical solutions. - Ensured code quality and operational stability through rigorous reviews, testing, and production support in AWS environments.
Senior Software Engineer 1 at Sophos, Mar 2021 - Oct 2021 · 8 mos, Bengaluru, Karnataka, India, Contributing in developing email security SAAS enterprise product. Invovled in code reviews, metorship.
Software Development Specialist at Amdocs, Aug 2019 - Feb 2021 · 1 yr 7 mos, Greater Kuala Lumpur, - Designing project architecture - Enable developers to code - Communication between technical stakeholders and resolving conflicts - Peer reviews - Designing and closing technical solutions - Technology stack: AWS, Microservices, Spring Boot, React, Redux, AEM, SOLR, ELK
Full-stack Developer at Amdocs, Mar 2015 - Aug 2019 · 4 yrs 6 mos, Pune Area, India, Worked as SSME in my project along with handling a scrum team and providing expertise in solution designing. • Worked as a full-stack developer with end to end application development. • Worked on UI technologies like ReactJS, HTML5, CSS3, Knockout, RequireJS, JSON etc. • Responsible for end-to-end development of Widgets which includes the UI and its interaction with backend REST/SOAP API’s. • Also handling the scoping of current project with the client and Product Owners. • Communicating with Client on any module changes and requirements (CRs and SRs).
Senior System Engineer at Infosys, Oct 2012 - Mar 2015 · 2 yrs 6 mos, Bengaluru, Karnataka, India, 2+ experience - Java and Infrastructure Automation. - Worked in Frontend technologies like Bootstrap, Knockout - Worked as ServiceNow Admin
B.Tech, Information Technology, Galgotias College of Engineering and Technology