Principal Security Engineer - Blockchain Wallet Infrastructure

Location: Remote - Location: US or EU (remote-first, office optional). Must be in the US, not Canada or in the European Union. France or Paris or as close as possible, always preferred

Compensation: $220K - $300K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and infrastructure to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Principal Security Engineer to lead security design and development across our entire platform. Reporting directly to the CISO, you will set the strategy to protect our high-stakes financial systems, fix vulnerabilities, and keep client wallets safe.

This is a strategic and highly technical role spanning the full security lifecycle. You will make security part of every layer of the stack, from architecture design to incident response. Beyond defense, you will champion secure development practices, mentor engineers, and represent the company's security posture to clients and the wider community.

Responsibilities:

About us:

Soar is a global fintech startup that specializes in financing and investment. Currently headquartered in Saudi Arabia, Soar is growing throughout the region with a mission to help people achieve their financial goals with innovative financial and property investment solutions and tools through its multi-purpose platform, designed to offer a simple and seamless user experience.

Role Summary:

We are seeking a highly skilled and motivated Senior Penetration Tester to join our growing security team. In this critical role, you will be responsible for proactively identifying and mitigating security vulnerabilities across our innovative fintech platform. You will conduct advanced penetration tests on our web applications, mobile apps, and cloud infrastructure, working closely with our development and operations teams to embed security into the core of our products and protect our customers' sensitive financial data. 🛡️

About the Role
We are seeking an experienced Staff Software Engineer to lead the design and delivery of secure, scalable backend systems. This is a hands-on leadership role with responsibilities spanning architecture, coding, and mentoring, while partnering closely with Product and cross-functional teams.

Key Responsibilities

• Design and build reliable, testable, production-ready backend services.
• Drive architectural decisions and own features end-to-end.
• Write clean, maintainable code with strong test coverage.
• Mentor engineers and set best practices across the team.
• Oversee system monitoring, incident response, and workflow improvements.
• Collaborate cross-functionally and contribute to hiring efforts.

Requirements

• 5+ years backend experience, 4+ years with Node.js & TypeScript.
• Strong expertise in AWS (Lambda, Cognito, S3, DynamoDB, SQS/SNS, CloudFormation).
• Experience with serverless, microservices, event-driven architectures.
• Skilled in TDD, CI/CD, REST/GraphQL APIs, secure coding.
• Proficiency in SQL and NoSQL databases.
• Startup/fast-paced environment experience preferred.

A DevSecOps Engineer is responsible for integrating security practices into the entire software development lifecycle, ensuring that applications, infrastructure, and operations are secure by design. This role blends development, operations, and security expertise to maintain high-availability systems while proactively managing security risks and compliance requirements.

Responsibilities:

• Security Integration in CI/CD: Embed security checks, vulnerability scanning, and automated compliance tests into CI/CD pipelines.
• Infrastructure Security: Implement secure cloud and on-premises infrastructure using best practices for access control, encryption, and network segmentation.
• Container & Kubernetes Security: Manage and harden containerized environments, including image scanning, runtime protection, and pod security policies.
• Monitoring & Incident Response: Use observability tools to monitor systems for security threats, respond to incidents, and implement continuous improvements.
• Collaboration & Education: Work closely with developers, SREs, and QA teams to ensure security-first development practices, provide guidance on secure coding, and conduct threat modeling.
• Compliance & Governance: Ensure systems and processes comply with standards like ISO27001, SOC 2, GDPR, NIST, and maintain audit readiness.

Requirements

At Quento, the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

Quento Technologies seeks a highly motivated and experienced Security Testing Specialist to prepare and execute analysis of the applications from a security point of view. At Quento, we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Our high-performing, dynamic, and collaborative environment fosters professional growth at every stage. As a Security Testing Specialist, you will be responsible for including an analysis of the available documentation source code, of the architecture, and penetration testing.

Contract duration: Start with 6 months

Location: JHB

Pay rate: Negotiable

Security Architectures

The Head of Security Architecture for the organization is responsible for designing, implementing, and maintaining robust security architectures that protect sensitive data in compliance with regulations such as POPIA, GDPR. This role is critical in safeguarding the confidentiality, integrity, and availability of electronic health records (EHR), patient and employee information, medical devices, and cloud-based healthcare services. The role will focus on designing and developing security architecture that aligns business and corporate security strategy. The role will collaboratively direct Security Architects, IT, and Engineers to design and build security controls and solutions compliant with approved enterprise architecture frameworks and standards across business and digital.

What will you bring?

Risk-based decision-making - expert in ISO 27001 / NIST / CIS controls, able to quantify and articulate risk, then select proportionate, cost-effective controls.

Pen-testing & threat-modelling - scoping, overseeing, and translating results into enforceable patterns and backlog items.

Influential communication - proven ability to engage C-suite and delivery stakeholders alike, adapting style to gain agreement and drive secure-by-design culture.

InfyStrat is seeking a motivated Cyber Security Analyst to join our team and contribute to our mission of safeguarding our digital assets and infrastructure. In this role, you will monitor, detect, and respond to security threats, vulnerabilities, and incidents across our systems. You'll perform risk assessments, analyze security breaches, and provide remediation recommendations while collaborating with various teams to enhance our security posture. This is a fantastic opportunity to grow your skills in a fast-paced environment while playing a critical role in protecting our organization from cyber threats.

Job title: Information Security Architect

Contract duration: Start with 6 months

First preference: EEE candidates

Location: JHB

The Head of Security Architecture for the organization is responsible for designing, implementing, and maintaining robust security architectures that protect sensitive data in compliance with regulations such as POPIA, GDPR. This role is critical in safeguarding the confidentiality, integrity, and availability of electronic health records (EHR), patient and employee information, medical devices, and cloud-based healthcare services. The role will focus on designing and developing security architecture that aligns business and corporate security strategy. The role will collaboratively direct Security Architects, IT, and Engineers to design and build security controls and solutions compliant with approved enterprise architecture frameworks and standards across business and digital.

Key Responsibilities:

About Jobgether:

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

One of our companies is currently looking for a Staff, Application Security Engineer in Canada.

This is an exciting opportunity for a senior-level Application Security Engineer to play a critical role in enhancing security across high-scale, cloud-native applications. In this role, you will drive secure development practices, implement automated security solutions within CI/CD pipelines, and collaborate with cross-functional teams to ensure resilient and secure software delivery. You’ll be a key player in shaping security strategy, leading initiatives to reduce vulnerabilities, and staying ahead of emerging threats. This is a remote-first role open to candidates based in Alberta, Ontario, or British Columbia.

Accountabilities:

About Jobgether:

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

One of our companies is currently looking for a Senior Product Engineer in United States.

As a Senior Product Engineer, you will play a key role in shaping and enhancing the user experience by designing, building, and launching innovative features for a high-impact platform. You will work closely with cross-functional teams, including product managers, designers, and data scientists, to improve and scale the provider search and recommendation system. Your expertise in full-stack development will allow you to deliver high-quality solutions that will make a direct impact on the healthcare experience for users. This role requires both technical leadership and the ability to work collaboratively in a fast-paced, agile environment.

Accountabilities: