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Quant Capital

Quant Capital

www.quant-capital.co.uk

3 Jobs

19 Employees

About the Company

Executive Search and Recruitment to the Quantitative Trading and Financial Technology space.

We provide a discrete search capability for the best known and most prestigious Hedge Funds & Prop Trading firms in the world.

Our specialized experience, market knowledge, extensive network, and commitment to client service ensure that every search is conducted effectively.

Quant Capital has been the Recruitment Partner to the Fintech50 for many years.

Our goal is to be recognised as a partner to the most interesting trading and financial technology businesses in the market.

Listed Jobs

Company background Company brand
Company Name
Quant Capital
Job Title
Linux Infrastructure Engineer
Job Description
**Job title:** Linux Infrastructure Engineer **Role Summary:** Senior engineer responsible for designing, operating and improving global Linux‑based infrastructure across datacentres, cloud and hybrid environments. Focus on building secure, reliable systems, advancing platform security, and integrating with engineering and research teams. **Expectations:** - Lead large‑scale, mission‑critical infrastructure projects. - Own end‑to‑end lifecycle: design, deployment, monitoring, troubleshooting, and optimisation. - Deliver high‑availability, secure, and scalable solutions that meet performance and regulatory requirements. - Mentor junior staff and collaborate with cross‑functional global teams. **Key Responsibilities:** 1. Design and manage global Linux infrastructure architecture. 2. Build and maintain secure, reliable systems for datacentres, cloud, and hybrid deployments. 3. Develop and maintain configuration management, automation scripts, and CI/CD pipelines. 4. Integrate platform services (DNS, DHCP, Kerberos, storage, Windows/Linux interoperability). 5. Troubleshoot complex issues using advanced host‑level tracing, network diagnostics, and performance profiling tools. 6. Contribute to platform security, network design, operating system hardening, and core service development. 7. Collaborate with engineering, research, and DevOps teams on platform design and integration. **Required Skills:** - 10+ years Linux systems engineering in large‑scale or mission‑critical environments. - Proficient in Python scripting for automation; experience with Rust, Go, Java, C, or C# is a plus. - Deep knowledge of Linux internals (kernel, boot, filesystems, networking). - Expertise in configuration management tools (Ansible, Puppet, Chef, SaltStack, etc.). - Strong debugging and diagnostic skills (host‑level tracing, network diagnostics, performance profiling). - Familiarity with CI/CD pipelines, automated build/deployment systems, and container orchestration. - Experience with DNS, DHCP, Kerberos, storage solutions, and Windows/Linux interoperability. - Excellent communication and teamwork skills for global collaboration. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent practical experience). - Relevant certifications (e.g., RHCE, LPI Linux Engineer, AWS Certified Solutions Architect, or equivalent) preferred but not mandatory.
London, United kingdom
On site
Senior
05-12-2025
Company background Company brand
Company Name
Quant Capital
Job Title
Lead Infrastructure Engineer
Job Description
**Job Title:** Lead Infrastructure Engineer **Role Summary:** Senior technical leader responsible for the design, migration, and operation of a low‑latency trading platform across cloud (AWS) and on‑premises environments. Owns infrastructure strategy, delivery, and scale, leading a small high‑performing DevOps team and partnering with engineering, trading, and risk functions. **Expectations:** - Drive end‑to‑end AWS migration and modernization initiatives. - Build and maintain greenfield trading and research environments. - Ensure highly available, low‑latency global infrastructure. - Lead network security, segmentation, and access control strategy. - Automate provisioning, deployment, and observability using IaC. - Optimize cost and reliability at scale. **Key Responsibilities:** - Architect and evolve hybrid (cloud + on‑prem) infrastructure for trading workloads. - Own and manage AWS services (VPC, Direct Connect, Transit Gateway, CloudFormation, ECS/EKS, S3). - Maintain Microsoft services, Active Directory, and identity solutions (Entra ID). - Engineer secure, low‑latency connectivity across firewalls, routing, MPLS, BGP, OSPF, SD‑WAN. - Implement network security policies, firewalls (Cisco ASA, Fortinet), and segmentation. - Lead the provisioning and deployment pipeline using IaC tools (CloudFormation, Terraform, Ansible). - Operate CI/CD workflows (GitLab CI or similar). - Monitor, troubleshoot, and optimize system performance (CloudWatch, Prometheus, Grafana). - Scale monitoring, capacity, and cost‑optimisation measures. - Grow and mentor a senior infrastructure/DevOps team. - Collaborate closely with trading, risk, and engineering stakeholders. **Required Skills:** - 8+ years of infrastructure experience, 3+ years in leadership within trading or high‑performance environments. - Deep AWS architecture expertise (VPC, IAM, EC2/ECS/EKS, Direct Connect, Transit Gateway). - Hybrid on‑prem/cloud operations proficiency. - Strong networking foundation (routing, switching, BGP, OSPF, MPLS, VLANs, VPNs, SD‑WAN). - Microsoft services and Windows Server administration, Active Directory/Entra ID. - Linux administration. - IaC & automation (CloudFormation, Terraform, Ansible). - CI/CD pipeline management (GitLab CI or equivalent). - Scripting (Python, Bash). - Observability and monitoring (CloudWatch, Prometheus, Grafana). - Knowledge of security tools (firewalls, IDS/IPS). **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Engineering, or related field. - AWS Certified Solutions Architect – Professional or equivalent architectural certification. - Relevant networking certification (CCNP/CCIE, or equivalent). - Experience with AD/Entra ID security best practices (optional).
London, United kingdom
On site
Senior
05-12-2025
Company background Company brand
Company Name
Quant Capital
Job Title
Java Software Engineer
Job Description
**Job Title:** Java Software Engineer **Role Summary:** Junior‑to‑mid level Java backend engineer focused on building and maintaining data ingestion services for a market‑making firm. Primary duties include developing Java APIs, batch jobs, and integrations; secondary responsibilities involve managing Python ETL pipelines, AWS infrastructure, and PostgreSQL databases. **Expectations:** - 2–5 years of production development experience (or equivalent). - Strong grasp of Java fundamentals (OOP, concurrency, design patterns). - Comfortable writing clean, testable code and participating in code reviews. - Working knowledge of SQL/PostgreSQL, Python for scripting/ETL, and AWS services. - Ability to collaborate with cross‑functional teams and contribute to service reliability and scalability. **Key Responsibilities:** - Design, implement, and refactor Java backend services (REST APIs, batch jobs, integrations). - Write unit, integration, and regression tests; maintain high code quality standards. - Manage and extend Python ETL pipelines that ingest data into AWS and PostgreSQL. - Define and evolve PostgreSQL schemas, handle migrations, and optimize queries for performance and data validation. - Enhance service reliability through logging, monitoring, alerting, and CI/CD‑driven deployments. - Participate in incident response, production support, and post‑mortem analysis. - Collaborate with UI developers on data‑driven features and occasionally contribute to front‑end code. **Required Skills:** - Java (8+): OOP, interfaces, concurrent programming, API design, unit testing frameworks (JUnit, Mockito). - SQL & PostgreSQL: schema design, migrations, query optimization, indexing, data validation. - Python: scripting, ETL, pipeline maintenance (Airflow, Luigi, or custom). - AWS: EC2, ECS/ECR, Lambda, RDS, S3, CloudWatch, CloudFormation, or equivalent. - Source control: Git; CI/CD pipelines (Jenkins, GitLab CI, CircleCI, or similar). - Monitoring/Logging: CloudWatch, Datadog, Grafana, ELK stack. - Optional: front‑end experience (React, Angular, or similar). - Excellent written and verbal communication skills; self‑motivated, detail‑oriented. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or a related discipline, or equivalent professional experience.
London, United kingdom
On site
Junior
13-02-2026