Hybrid Cryptography & Key Management Engineer – Belgium

Capco Group; Brussel Hoofdstad; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

Capco in Belgium is seeking an experienced Cryptography & Key Management Security Engineer. You will apply PKI, HSMs, and secrets management to secure complex financial services environments with a hands-on yet advisory focus.

Collaborating with security architects, engineers, and application teams, you will design scalable cryptographic solutions, lead key ceremonies, and support PKI lifecycle activities. Fluent English is required; French is a plus.

Qualifications

• 5+ years of relevant professional experience in IT security, cryptography, PKI, or key management.
• Hands-on experience with highly available security infrastructure and enterprise cryptography.
• Experience working with multiple stakeholders in regulated environments (financial services).
• Knowledge of HSM technologies and certificates lifecycle management.
• Experience with HashiCorp Vault or similar secrets management platforms.

Responsibilities

• Manage lifecycle of cryptographic keys, digital certificates, and application secrets.
• Operate and support HSM infrastructures and cryptographic platforms.
• Lead cryptographic key ceremonies and PKI lifecycle activities.
• Investigate incidents related to encryption, certificates, and secrets management.
• Collaborate with engineering teams to integrate cryptographic services securely.

Skills

HSMs

PKI

Secrets Management

HashiCorp Vault

Cryptographic Standards

Crypto Agility

Post-Quantum Cryptography

Security Infrastructure

Encryption & Authentication

Tools

nCipher/Entrust

Job description

Cryptography & Key Management Security Engineer

About Capco

Capco is a global business and technology consultancy specializing in the financial services and energy industries. We bring together industry knowledge, technology expertise, and an innovative mindset to support clients in complex transformation initiatives.

At Capco, you will be part of a collaborative and entrepreneurial environment where you can work alongside experienced professionals, expand your expertise, and contribute to impactful projects across the financial services industry.

The Role

We are looking for an experienced Cryptography & Key Management Security Engineer with strong expertise in cryptographic technologies, PKI, Hardware Security Modules (HSMs), and secrets management.

This is a specialist role for security professionals who enjoy combining hands-on operational responsibilities with security advisory and strategic project work.

As a Cryptography & Key Management Security Engineer, you will support complex and business-critical security environments within the financial services sector. You will contribute to the secure management of cryptographic keys, digital certificates, and application secrets while helping organizations strengthen their cryptographic capabilities and prepare for future security challenges.

You will collaborate with security specialists, architects, application teams, infrastructure experts, and other stakeholders to translate security and regulatory requirements into secure, scalable, and operationally feasible solutions.

What You Will Do

Manage the lifecycle of cryptographic keys, digital certificates, and application secrets, including rotation, renewal, revocation, and access management.

Operate, monitor, and support Hardware Security Module (HSM) infrastructures and other cryptographic platforms.

Help ensure high availability, operational stability, and compliance of security-critical infrastructure.

Support and execute cryptographic key ceremonies.

Investigate and resolve incidents related to encryption, authentication, certificates, key management, and secrets management.

Support PKI and certificate lifecycle management activities.

Work with HashiCorp Vault or comparable technologies for secure application secrets management.

Identify security risks and contribute to structural improvements and automation.

Collaborate with engineering and application teams to integrate cryptographic services securely into their environments.

Act as a trusted subject matter expert on cryptographic technologies, standards, algorithms, and security best practices.

You will also have the opportunity to contribute to strategic security initiatives in areas such as:

Post-Quantum Cryptography – assessing cryptographic risks and helping organizations prepare for the transition towards quantum-resistant solutions.

Crypto Agility – improving the ability to replace, rotate, and manage cryptographic algorithms, keys, and certificates efficiently.

PKI & Certificate Readiness – preparing applications and platforms for evolving certificate and Extended Key Usage requirements.

HSM Lifecycle Management – supporting upgrades, migrations, configuration, and renewal of HSM platforms.

Key Management – improving governance and operational processes around cryptographic keys.

Security Automation – automating certificate, key, and secrets management processes where possible.

Platform Integration – integrating cryptographic and security services into broader enterprise technology environments.

What We Are Looking For

Experience

5+ years of relevant professional experience within IT Security, cybersecurity, cryptography, PKI, security infrastructure, or key management.

Strong hands-on experience in technically complex and business-critical IT environments.

Experience operating or supporting high-availability security infrastructure.

Experience working with multiple technical and business stakeholders.

Previous experience within financial services or another highly regulated environment is strongly valued.

Experience working in Agile environments is considered an advantage.

Business & Technical Skills

We are looking for a professional with strong knowledge in several of the following areas:

Hardware Security Modules (HSMs)

Public Key Infrastructure (PKI)

Digital certificates and certificate lifecycle management

Cryptographic key management

HashiCorp Vault or similar secrets management platforms

Cryptographic algorithms and standards

Encryption and authentication technologies

High-availability security infrastructure

Security and access management

Security compliance and regulatory requirements

Cryptographic key ceremonies

Hands-on experience with enterprise HSM technologies such as nCipher/Entrust or comparable platforms is a strong advantage.

Knowledge of the following is also valuable:

NIST cryptographic standards and recommendations

PCI-DSS and other security frameworks

European financial services security and regulatory requirements

Python, Bash, or other scripting languages

Security process automation

IT Service Management tools such as ServiceNow

Agile methodologies and tooling

Cryptography & Security Expertise

We are particularly interested in professionals with practical expertise in one or more of the following domains:

Hardware Security Modules

PKI

Certificate Management

Cryptographic Key Management

Secrets Management

HashiCorp Vault

Cryptographic Standards

Crypto Agility

Security Infrastructure

The ability to combine deep technical expertise with an understanding of business, regulatory, and operational requirements is particularly important for this role.

Soft Skills

Strong analytical and problem-solving skills.

Proactive and able to identify risks and improvement opportunities.

Excellent communication and stakeholder management skills.

Comfortable translating complex security requirements into practical technical solutions.

Able to balance security, compliance, operational stability, cost, and usability.

Collaborative and comfortable working with security teams, architects, application owners, developers, and infrastructure specialists.

Able to work independently while contributing effectively within a specialized team.

Comfortable operating in environments where technologies, threats, and regulatory expectations continue to evolve.

Strong focus on quality and production stability.

Client-oriented and pragmatic in your approach to solving security challenges.

Languages

English: fluent spoken and written.

French: fluent spoken.

Dutch: considered an advantage.

Working Model

This is a hybrid role based in Belgium.

Approximately 50% on-site and 50% remote working is expected.

Flexibility to work at client locations when required.

Why Join Capco?

Work on complex cybersecurity and cryptography initiatives within the financial services industry.

Develop deeper expertise in areas such as HSMs, PKI, secrets management, crypto agility, and Post-Quantum Cryptography.

Work alongside experienced security, business, and technology professionals.

Contribute to highly relevant security challenges where technology, regulation, and operational resilience come together.

Be part of an international consulting environment with opportunities to learn, develop, and broaden your expertise.

Work on assignments where you can combine hands-on technical expertise with advisory responsibilities and strategic security initiatives.

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