Synack

Senior Software Engineer, AI

Synack
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2 months ago
Remote, United KingdomSenior
H1B Sponsor

Responsibilities

  • Design, implement, and deliver scalable AI-centric software systems.
  • Develop agentic AI capabilities for vulnerability identification, penetration testing automation, workflow optimization, and threat intelligence.
  • Own product features from ideation through production deployment and monitoring.
  • Drive the design and implementation of AI-enabled systems and effective software development processes.
  • Lead technical discussions, code reviews, and design sessions.
  • Mentor junior engineers and support their professional development.
  • Collaborate with cross-functional teams to integrate AI capabilities into broader systems and applications.
  • Help maintain Synack’s security and privacy posture.

Requirements

  • 7+ years of distributed-systems and backend software engineering experience.
  • Experience with AI technologies such as LLMs, RAG, and MCP, plus token and LLM cost optimization techniques.
  • Expert knowledge of Go with 4+ years of experience and solid hands-on Python experience.
  • Strong experience with microservices, REST API design, gRPC, unit testing, and BDD testing.
  • Strong software design skills; UML is a bonus and exposure to Domain-Driven Design is desirable.
  • Experience with asynchronous messaging technologies such as Google Pub/Sub and Kafka.
  • In-depth knowledge of NoSQL and RDBMS technologies.
  • Strong experience with Docker, Kubernetes, and cloud environments, preferably GCP.
  • Experience working on and scaling microservice-based applications and on agile teams.
  • Excellent communication, collaboration, and stakeholder-management skills.
  • Experience in a fast-paced startup environment and cybersecurity experience are nice to have.

Benefits

  • Position available across UK locations.
  • Compensation package may include equity and benefits.
Synack

About Synack

201-500 employees

Synack is the leader in human-led and agentic AI-powered Penetration Testing as a Service (PTaaS), transforming offensive security to help organizations proactively reduce risk, stay compliant and defend against evolving cyber threats. We are committed to making the world more secure by harnessing agentic AI innovations and a talented, vetted community of security researchers to deliver continuous penetration testing and autonomous vulnerability management. Founded by former NSA operatives, Synack has enabled nearly 10 million hours of expert testing to protect critical assets, from global financial systems to U.S. Defense Department networks.

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