Senior Rust Engineer - On-Chain Security Infrastructure

Location: Remote - Europe

Compensation: $165K - $200K

We are building a Credible Layer—a step-level improvement for on-chain security designed to safeguard the crypto industry and restore credibility after billions were lost to hacks. We are creating an on-chain protocol and off-chain infrastructure that enables protocols to enforce security rules for every transaction. Backed by world-class investors, we are seeking a Senior Rust Engineer to work on bleeding-edge infrastructure at the heart of our mission.

You will play a crucial role in shipping cutting-edge features that extend the EVM (Ethereum Virtual Machine) to enable security rules to be checked after every state transition. This is a high-impact, deeply technical role requiring expertise in performance optimization and low-level systems programming within a collaborative, fast-iteration environment.

Key Responsibilities:

Senior Core Systems Engineer - Secure 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: $180K - $260K

Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Senior Core Systems Engineer to design, build, and scale the low-level systems at the heart of our platform, where performance, security, and correctness are non-negotiable. This is a high-impact role focused on turning advanced cryptography into fast, resilient, and trusted production infrastructure.

As a Core Systems Engineer, you will work deep in the stack, designing and scaling reliable distributed services and integrating them with cloud, hardware, and blockchain environments. You will collaborate across product, research, and security to implement advanced cryptographic and security protocols using low-level systems languages.

Responsibilities:

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.

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:

With more than 20 years of proven experience, QUALCO Group is a leading Fintech solutions provider, offering a wide range of analytics-driven, highly scalable enterprise software solutions in over 35 countries worldwide. Our end-to-end technology solutions cover a wide range of needs for Banking, Financial Services, Utilities, Insurance, Retail organizations, and beyond.

We are looking for an Identity & Access Management Architect for the development of architectural artefacts and the provision of expert guidance, with an emphasis on supporting the team in responding to shifting priorities and delivering value across priority initiatives.

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 Solutions Architect in United States.

This role offers an exciting opportunity for a technically skilled and strategically minded professional to guide customers through both pre-sales and post-sales engagements. As a Solutions Architect, you’ll work alongside customer security, infrastructure, and engineering teams to craft robust, scalable solutions tailored to their business needs. You’ll combine technical expertise with consulting acumen to shape solution strategies, drive implementation success, and deliver long-term value. Your contributions will directly impact customer satisfaction and solution adoption.

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 Staff Software Engineer, Security in United States.

In this role, you will take ownership of establishing and leading the security strategy for a growing dental tech platform. As the first dedicated security leader, you'll have the opportunity to create and formalize security practices, implement the right tooling, and establish compliance protocols, including HIPAA. You will also play a pivotal role in ensuring the security of cloud infrastructure, leading incident responses, and driving security across a fast-paced development lifecycle. This is a leadership position that offers autonomy, responsibility, and the chance to make a significant impact in a rapidly growing company.

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 Security Engineer, Detection & Response (Eastern Preferred) in Canada, Mexico, United States.

As a Senior Security Engineer specializing in Detection & Response, you will be responsible for enhancing the security visibility and threat detection capabilities across various platforms. You will design, implement, and maintain high-fidelity log ingestion pipelines, monitor and respond to cybersecurity threats, and work closely with cross-functional teams to improve Docker’s security posture. This role involves automating processes, investigating incidents, and refining security strategies to ensure a secure infrastructure. Your expertise in detection engineering will contribute to advancing the company’s security initiatives and supporting continuous improvement in security operations.

Accountabilities: