Top Tech Jobs & Startup Jobs in London

As a Business Development Representative, you will engage and qualify prospects for B2B solutions, manage sales pipelines, and collaborate with Sales and Marketing to drive revenue in the DACH region, focusing on the German market.

The Senior Data Engineer will design and build data pipelines on GCP, ensuring high data quality and reliability for analytics and ML products. Responsibilities include mastering ETL processes, managing workflows with Airflow, and collaborating closely with ML engineers.

The Sr Product Manager will lead the development of data-driven features, build reporting dashboards, and collaborate with cross-functional teams to enhance user insights and product adoption in a B2B SaaS environment.

Hack The Box welcomes candidates to share their CVs and career preferences to align with future job opportunities, emphasizing growth in cybersecurity.

Lead a 10–12 person data organization to run and scale a GCP-native data platform, complete Snowflake-to-BigQuery consolidation, establish SLOs, data governance, self-serve analytics, and support ML/AI feature and telemetry workloads across product lines.

Design, deploy, and operate Hack The Box’s global, multi-site data center network. Responsibilities include BGP, EVPN-VXLAN, JunOS and Juniper platform management, network automation, monitoring and observability, capacity planning, site expansions, troubleshooting, documentation, and on-call incident response. The role collaborates with systems, platform, SRE, security, and product engineering teams supporting VMware, Kubernetes, and Ceph environments.

Build, operate, and improve multi-region compute, virtualization, storage, networking, and Kubernetes platforms. Administer VMware vSphere, NSX, and Ceph; develop Ansible and Terraform infrastructure automation; monitor systems with Prometheus and Grafana; support hardware lifecycle operations and incident response. The role also contributes to migrating from VMware to an open-source virtualization platform, documents procedures, collaborates with network engineering, and participates in on-call support.

Own and evolve HTB’s internal platform stack, including identity and access management, Google Workspace, endpoint management, SaaS administration, security tooling, compliance automation, secrets management, and an AI/LLM gateway. Build integrations and workflow automations, maintain documentation and runbooks, support secure scaling, and participate in on-call for critical identity, email, and SaaS incidents.

Design and implement scalable onboarding, activation, and adoption flows and educational content. Use analytics to monitor portfolio health, trigger automated outreach, run 1-to-many programs, and flag accounts for human follow-up. Optimize systems (ChurnZero, HubSpot, Looker) and collaborate with Product, Marketing, Support, Sales, and RevOps to improve customer retention and growth.