Senior Security Engineer

LemFi (Series B) is building the go-to financial app for the Global South.

Moving to a new country shouldn’t mean starting from zero. That's why our team of 400+ spanning 20+ countries is building a financial ecosystem that helps immigrants stay connected to home, build stability, and create wealth regardless of where they are from or where they live.

What began as fast, affordable remittances is now evolving into a complete platform for multi-currency accounts, payments, credit, and long-term financial growth.

With over 2 million users across the globe, we process over $1.5B in monthly transactions to 30+ countries, proving that borders shouldn't limit financial opportunity.

The Role

You will be the engine behind LemFi’s security posture, ensuring our infrastructure, processes, and controls meet the highest standards for resilience, compliance, and customer trust.

You won’t just configure security tools—you will strengthen cloud security, embed security into workflows, improve detection and response, and translate regulatory requirements into actionable, measurable improvements across the business.

How You'll Contribute

• Secure & Harden Infrastructure: Manage and enhance AWS security, including IAM, network segmentation, key management, logging, and cloud hardening.

• Implement Monitoring & Detection: Configure and maintain SIEM, vulnerability scanners, IDS/IPS, endpoint protection, and alerting for critical systems.

• Embed Security in CI/CD: Integrate security controls, monitoring, and automation into development pipelines to prevent vulnerabilities and ensure operational efficiency.

• Maintain Compliance & Audit Readiness: Support ISO 27001, PCI DSS, and DORA compliance, preparing regulatory reports, coordinating audit evidence, and maintaining security documentation.

• Incident Management & Threat Intelligence: Operate and tune SIEM to detect suspicious activity, lead incident triage and post-incident reviews, and maintain playbooks for vulnerabilities, incidents, and threat intelligence.

• Collaborate & Report: Align security strategy with Risk, Compliance, and IT, providing metrics for executive reporting and advising on third-party/vendor compliance.

• Drive Continuous Improvement: Identify and implement process improvements, automation, and reporting enhancements to strengthen detection, response, and overall security posture.

Who You Are

• Impact-Oriented: You thrive in a fast-growing fintech environment, balancing security rigor with business agility.

• Technically Grounded: You have deep expertise in cloud security, SIEM, vulnerability management, and incident response within AWS environments.

• Proactive & Accountable: You take ownership of security initiatives, act independently, and drive measurable improvements.

• Collaborative: You communicate clearly with Engineering, Security, Compliance, and leadership, translating complex topics for non-technical stakeholders.

• Analytical & Structured: You approach challenges methodically, focusing on continuous improvement, operational resilience, and automation.

What You'll Bring

• 5+ years in Security Engineering, Cloud Security, or Infrastructure Security, ideally within AWS environments.

• Hands-on experience with AWS security services (IAM, KMS, CloudHSM, Security Hub, CloudTrail) and SIEM/vulnerability management.

• Familiarity with financial-sector compliance frameworks such as DORA, PCI DSS, ISO 27001, and NIST CSF.

• Experience preparing security reports, audit documentation, and regulatory evidence (e.g., CBI, PCI QSA).

• Proficiency in Infrastructure-as-Code (Terraform), CI/CD security integration, and scripting/automation (Python, Bash, or similar).

• Strong ownership, accountability, and collaborative mindset, with excellent communication skills; experience in regulated financial institutions is a plus.

The Interview Process

• Chat with a Talent Partner (30 mins)

• Behaviours & Culture Interview (60 mins)

• Final Interview (60 mins)

Why Join LemFi?

Love shouldn’t be expensive, yet those working hardest for their families often face predatory fees and banking exclusion. We're changing this.

At LemFi, you won’t be just a cog in a machine. Whether designing products, scaling operations, or telling our story, you’ll tackle complex challenges with real, immediate impact. Your work goes beyond metrics - it puts money back in families’ pockets and offers access to the previously excluded. Join us to make a meaningful difference, where high performance is a lifeline for millions.

Our Values: How We Win

• Sharp Customer Focus 🎯 We cut through the noise and prioritize ruthlessly based on what drives real value.

• Lead with Data 📊 We trade instinct for insight. We test, analyze, and own the outcomes.

• Ownership 🤝 We take responsibility for global outcomes, not just local wins.

• Grit 💪 We navigate ambiguity with resilience and keep pushing until the customer feels the impact.

You can connect with us on LinkedIn and Instagram and if you haven't already, download the app on the App Store or Google Play.

Diversity & Inclusion at LemFi

To build the best financial tools for the global diaspora, we need a team that reflects the world we serve. We welcome builders from all walks of life who embody our values over a perfect resume.

Don’t meet every single requirement in the job ad? Research shows that candidates from underrepresented backgrounds often hesitate to apply if they don't check every box. If you are excited about this role and our mission, we encourage you to apply anyway. You might be just the right person for this, or other roles.