security engineer

Lead Security Engineer

posted by: spj_bot

About LawnStarter

LawnStarter is the nation's leading on-demand marketplace for lawn care and outdoor services, with over $150M in annual bookings. We're expanding beyond lawn care to become the one-stop shop for all home services — operating across three brands (LawnStarter, Lawn Love, Home Gnome) on a single shared platform, with customers and pros on both sides and real money moving every day.

About Security at LawnStarter

Security is already part of how we build — today it's owned by our Cloud & DevOps team, who've kept it solid as we've scaled. As we grow a $150M+ marketplace that processes payments, holds customer and pro data, and runs on AWS — and as AI agents let us ship faster than ever — we're ready to take security to the next level with a dedicated leader.

Job Skills

draw php threat modeling customer data marketplace data flows security engineering manager job description collaborate application security read react lawn care map threat models secure coding plan com rehearsed laravel build control IAM automating triaged safe m vulnerability management kubernetes build automated automated devops gnome technical controls codebase triaging leadership ul managing heavy lifting muscle write abstract runbook traceable blob prioritize sharpens vulnerabilities threat model security engineer operating planning infrastructure security script github design review automate deliberate PCI management mapping leveling safely tooling collaborator risk register processes payments case audit hardening business case security voice datadog layer mapped infrastructure encryption data protection typescript scale security engineers audits
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Senior Security Engineer

posted by: spj_bot

Azumo builds and operates production AI systems for companies ranging from seed-stage startups to Meta. We are hiring a Senior Security Engineer to own the technical security posture of those systems once they are live: the infrastructure they run on, the pipelines that feed them, and the agents that act on their output. The role is fully remote across Latin America, aligned to your client's working day.

This is not an audit seat. Azumo has shipped production AI since 2016, and the work here is in the systems themselves — hardening infrastructure, closing vulnerabilities, and building the guardrails that keep AI-driven workflows safe in front of real users.

Where this role sits

At Azumo, ownership is split by what gets built: the pipelines, the method behind a decision, the product, and what an AI system does once it's live. Security doesn't work that way. It has to be right across all of them, and that's what this role owns.

Gap or breach, it's yours. If there's a gap, you find it and close it before anyone outside the team does. If there's a breach, you run it: containment, root cause, and the fix that keeps it from happening twice.

Whoever builds the system answers for whether it works. You answer for whether it's safe to run. That split is agreed before the work starts, not reported after.

Job Skills

dss professional endpoint security risk assessments secure patterns threat modeling hipaa api design security engineering senior engineer application security banking communication skills operations information security harden security community plan powered systems operational investigation safe toolchain career development open source vulnerability management anomaly detection automated offensive security stage codebase incident response aws security specialty grading terraform operates reliability web systems ul access control self directed cloud security root cause act workflows fix git software development vulnerabilities logging prioritization english maternity support engineers security engineer operating cloud infrastructure infrastructure security file github code review penetration testing PCI management devsecops computer science translation San latin tooling remuneration SIEM closing teaching testing code bank auditor philanthropy audit hardening infrastructure as code layer technical writing infrastructure embedded encryption production system
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Senior Security Engineer

posted by: spj_bot

Senior Security Engineer

Azumo builds and operates production AI systems for companies ranging from seed-stage startups to Meta. We are hiring a Senior Security Engineer to own the technical security posture of those systems once they are live: the infrastructure they run on, the pipelines that feed them, and the agents that act on their output. The role is fully remote across Latin America, aligned to your client's working day.

This is not an audit seat. Azumo has shipped production AI since 2016, and the work here is in the systems themselves — hardening infrastructure, closing vulnerabilities, and building the guardrails that keep AI-driven workflows safe in front of real users.

Where this role sits

At Azumo, ownership is split by what gets built: the pipelines, the method behind a decision, the product, and what an AI system does once it's live. Security doesn't work that way. It has to be right across all of them, and that's what this role owns.

Gap or breach, it's yours. If there's a gap, you find it and close it before anyone outside the team does. If there's a breach, you run it: containment, root cause, and the fix that keeps it from happening twice.

Whoever builds the system answers for whether it works. You answer for whether it's safe to run. That split is agreed before the work starts, not reported after.

What you will build

Job Skills

dss professional endpoint security risk assessments secure patterns threat modeling hipaa api design security engineering senior engineer application security banking communication skills operations information security harden security community plan com powered systems operational investigation safe toolchain career development open source vulnerability management anomaly detection automated offensive security stage codebase incident response aws security specialty grading terraform operates reliability web systems access control self directed cloud security root cause write act workflows fix git software development vulnerabilities logging prioritization english maternity support engineers security engineer operating cloud infrastructure infrastructure security file github code review penetration testing PCI management devsecops computer science translation San latin tooling remuneration SIEM closing teaching testing code bank auditor philanthropy audit hardening infrastructure as code layer technical writing infrastructure embedded encryption production system
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Senior Security Engineer, Platforms & AI - Remote - Latin America

posted by: spj_bot

Azumo builds and operates production AI systems for companies ranging from seed-stage startups to Meta. We are hiring a Senior Security Engineer to own the technical security posture of those systems once they are live: the infrastructure they run on, the pipelines that feed them, and the agents that act on their output. The role is fully remote across Latin America, aligned to your client's working day.

You will not be writing policy. Azumo has shipped production AI since 2016, and the work here is in the systems themselves — hardening infrastructure, closing vulnerabilities, and building the guardrails that keep AI-driven workflows safe in front of real users.

Where this role sits

Most engineering organizations split ownership by what's built: pipelines and data infrastructure, the model or the method behind a decision, the product itself, and — once AI systems are live — what they actually do in front of users. Security isn't one more slice next to those. It's the discipline that has to hold inside every one of them, and on any team large enough to carry a dedicated specialist, this is the role that owns it.

Job Skills

professional endpoint security threat modeling hipaa api design security engineering senior engineer application security banking communication skills information security harden security community com powered systems investigation safe toolchain career development open source accountability vulnerability management anomaly detection automated offensive security stage codebase incident response aws security specialty grading terraform operates ul access control integration delivery model cloud security root cause write hardened data infrastructure act workflows fix git software development vulnerabilities logging english maternity support engineers security engineer cloud infrastructure infrastructure security file github code review penetration testing management devsecops computer science translation San latin tooling build pipeline remuneration SIEM closing teaching testing code philanthropy audit hardening infrastructure as code layer technical writing infrastructure embedded encryption production system
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Lead Security Engineer

posted by: spj_bot

About LawnStarter

LawnStarter is the nation's leading on-demand marketplace for lawn care and outdoor services, with over $150M in annual bookings. We're expanding beyond lawn care to become the one-stop shop for all home services — operating across three brands (LawnStarter, Lawn Love, Home Gnome) on a single shared platform, with customers and pros on both sides and real money moving every day.

About Security at LawnStarter

Security is already part of how we build — today it's owned by our Cloud & DevOps team, who've kept it solid as we've scaled. As we grow a $150M+ marketplace that processes payments, holds customer and pro data, and runs on AWS — and as AI agents let us ship faster than ever — we're ready to take security to the next level with a dedicated leader.

Job Skills

draw php threat modeling customer data marketplace data flows security engineering manager job description collaborate application security read react lawn care map threat models secure coding plan com rehearsed laravel build control IAM automating triaged safe m vulnerability management kubernetes build automated automated devops gnome technical controls codebase triaging leadership ul managing heavy lifting muscle write abstract runbook traceable blob prioritize sharpens vulnerabilities threat model security engineer operating planning infrastructure security script github design review automate deliberate PCI management mapping leveling safely tooling collaborator risk register processes payments case audit hardening business case security voice datadog layer mapped infrastructure encryption data protection typescript scale security engineers audits
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Product Security Engineer

posted by: spj_bot

As our platform continues to scale, security becomes a core product capability rather than a separate function. We're looking for a Product Security Engineer who can partner directly with engineering teams to build secure systems from the ground up.

This is a highly technical, hands-on role where you'll improve the security of our applications, cloud infrastructure, APIs, and development lifecycle.

Responsibilities

Application Security

  • Review application architecture and new product features from a security perspective.
  • Identify security vulnerabilities across backend services, APIs, mobile applications, and web platforms.
  • Perform threat modeling and security design reviews.
  • Support internal and external penetration testing activities.

Secure Development

  • Build and improve Secure SDLC across engineering teams.
  • Integrate security tooling into CI/CD pipelines.
  • Improve developer security practices and provide technical guidance.
  • Help engineering teams remediate vulnerabilities.

Cloud & Infrastructure Security

  • Improve the security posture of our cloud infrastructure.
  • Secure Kubernetes environments, IAM policies, secrets management, and infrastructure components.
  • Implement security monitoring and hardening best practices.
  • Work closely with Platform and DevOps teams.

Security Automation

Job Skills

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Principal Security Engineer

posted by: spj_bot

Location: Remote - US or EU

Remote | Full-time

Compensation: $160K - $240K

Our client operates a core banking platform designed specifically for digital assets, enabling fintechs and systemically important financial institutions to build, operate, and scale onchain infrastructure. The platform secures over €100B in assets and powers critical operations—including key management, transaction processing, treasury, and compliance—for over 400 global institutions.

Our client is seeking a Principal Security Engineer to lead product security across the entire ecosystem. In this role, security is built directly into the system's architecture rather than applied as a secondary control. The ideal candidate will take ownership of hardening key management, signing workflows, authentication systems, policy enforcement, and multi-chain integrations.

Beyond core product security and vulnerability management, this position plays a pivotal role in shaping the long-term architectural vision of a platform trusted by tier-one financial institutions. As an organization committed to technical excellence, our client also encourages contribution to the broader security community through research, publications, and industry events.

Key Responsibilities

Job Skills

layers professional key management secure patterns threat modeling communication policy enforcement cryptographic protocol security engineering work environment banking operations supply chain professional development supply chain security architectural design problem solving management system authorization root cause analysis security community security security policy threat models security sensitive research mitigation nist cybersecurity framework problem solve computing platform communicate developer environments vulnerability management cloud computing financial institution stage track incident response leadership operates new product designed specifically environment security authentication protocol treasury networking protocols distributed networking protocols managing security distributed networks managed securely digital asset workflows layered blockchain investigate initial screening think leadership external representation chain integrations security engineer infrastructure security critical thinking operate version control security research distributed systems defense in depth transaction processing backend security control enforce rust platform trusted long term presentations workflows systems development budget external auditor audit hardening infrastructure as code security architecture infrastructure embedded scale typescript applicable data audits core product
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Product Security Engineer

posted by: spj_bot

Location: Remote - Remote APAC & EU

Remote | Full-time

Compensation: $75K - $85K

Our client is a fast-growing, enterprise-grade software organization committed to supporting, developing, and servicing a leading open-source, proof-of-stake distributed ledger platform. As an EVM-compatible network built to meet the rigorous demands of global developers and institutions, the platform prioritizes speed, security, stability, and sustainability, and is governed by industry-leading organizations across multiple sectors and regions.

As the platform scales with new protocol upgrades, EVM-compatible services, cross-chain infrastructure, and cryptographic primitives, managing the expanding attack surface is paramount. The Product Security Engineer will be responsible for embedding security directly into the product development lifecycle, ensuring that security remains a first-class property of every protocol upgrade, smart contract, and node shipped to production. This role focuses on hands-on vulnerability discovery, adversarial testing, and proactive threat mitigation before code reaches production.

Key Responsibilities

Job Skills

map supporting developing analysis dynamic analysis nodes large scale systems professional auditing automation polynomial embedding security policy managing product lifecycle research secure coding mitigation code review threat modeling triage solving complex distributed systems design protocol static analysis building custom sustainability security test prioritizes translate tooling experience design enforce manager security testing rust open source security assessments integrating attack pattern managed securely constructions workflows blockchain coding innovation automated audit compatible governed ethereum developing custom read security architecture node bridges attack surface layer vulnerabilities exploitation collaborative infrastructure grammar scale json rpc applicable data security engineer vulnerability discovery codebase e java operating remote remote track
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Security Engineer

posted by: spj_bot

Location: Austin, United States (Hybrid)

Hybrid | Full-time

Compensation: $150K - $175K

Our client is an innovative firm operating at the intersection of institutional finance and emerging blockchain technology. Backed by $40M in funding from premier venture capital firms including Electric Capital and Paradigm, the organization is bridging the gap between decentralized finance and traditional Wall Street by rebuilding financial infrastructure to be faster, safer, and fully on-chain.

In this environment, security is viewed as a primary client-facing differentiator and a core pillar of institutional trust. The security program is integral to client due diligence, auditor engagements, and enterprise contract negotiations. Our client is seeking a Security Engineer to serve as the hands-on execution layer of a security strategy designed by the CISO.

This is a builder role focused on the technical implementation of a modern, cloud-native security stack. The successful candidate will stand up identity enforcement, endpoint protection, cloud posture management, threat detection, and GRC evidence pipelines. This position reports directly to the CISO, offering high technical autonomy and executive visibility within a production-grade environment.

Key Responsibilities:

Security Infrastructure & Implementation

Job Skills

professional security strategy cloudtrail audit quality aws certified security governance endpoint protection security engineering manager finance electric standard operating procedure operations security log data governance threat detection evidence collection frameworks nist investment enforcement execute manage security policy due diligence bridging IAM operational m accountability scripting API patch management integrations security program contract negotiation incident response leadership mentorship automation managing revocation integration cloud security environment security aws services integrates cloud native validating service account management threat managed securely collaboration deep dive blockchain investigate innovative mfa tracking venture capital security engineer operating manage security operate vulnerability security infrastructure management test scenarios continuous improvement professional certifications tooling security control application layer tools e SSO behavioral interview audit layer infrastructure applicable data triage audits
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Senior Blockchain Security Engineer

posted by: spj_bot

Senior Blockchain Security Engineer
Employment: Full-time via MLabs
 Engagement: Contracted to a UAE-based enterprise blockchain / fintech client
 Location: Remote (Eastern Europe / MENA / India preferred)

Job Description
MLabs is hiring a Senior Blockchain Security Engineer to support a large-scale blockchain and financial technology program for a UAE-based enterprise client.
You will be responsible for securing smart contracts, blockchain integrations, and protocol-level components within a custom enterprise blockchain ecosystem. This role requires deep expertise in smart contract vulnerabilities, secure architecture design, and threat modeling in decentralized systems.
The ideal candidate has hands-on experience auditing smart contracts and identifying vulnerabilities in production blockchain environments.

Responsibilities

Job Skills

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