Senior Software Engineer (Behavioral Security Products)

Location: Remote - UK

Company

hirify.global is a cybersecurity startup developing protection against evolving adversaries, including account takeover protection and email security products.

What you will do

• Design, build, and iterate on scalable backend and ML systems, APIs, frameworks, and internal tools for the account takeover protection platform.
• Own end-to-end delivery of complex features that affect customer experience.
• Ensure stability, reliability, monitoring, operational excellence, and performance of critical production systems.
• Write and review technical design documents, participate in code and design reviews, and influence adoption across teams.
• Collaborate with product managers, designers, and engineers to define priorities, break down complex projects, and deliver long-term technical plans.
• Mentor peers, share knowledge, contribute to engineering practices, and participate in on-call rotations.

Requirements

• 7+ years of industry experience, including proven experience as a Senior Software Engineer.
• Strong backend proficiency in Python and experience designing and scaling production systems.
• Proven experience with large-scale system design and resilient, scalable, fault-tolerant applications.
• Strong knowledge of relational databases and modern data storage technologies.
• Familiarity with service-to-service communication using gRPC and Kafka, and caching with Redis.
• Experience with AWS services including S3 and RDS, deployment practices, containerization, and orchestration with Docker, Kubernetes, and Helm.
• Strong understanding of service health, monitoring, incident response, code quality, reliability, and performance.
• Experience writing technical design documents and influencing adoption across teams.
• Ability to independently lead complex projects, collaborate across teams, mentor peers, communicate effectively in an async-first distributed environment, and plan for long-term scaling.

Nice to have

• Proactive use of modern developer productivity tools, including GenAI assistants.

Culture & Benefits

• Remote work from the UK in a distributed, async-first environment.
• Hands-on ownership of infrastructure, ML models, APIs, and internal tools supporting a customer-facing security product.
• Employment is subject to successfully completed pre-employment checks if a conditional offer is made.
• Recruiting may use AI-assisted tools to prepare interview questions, but hiring decisions are made by people.
• Equal opportunity employment practices apply in line with relevant legislation and company policies.