Lead Security Engineer, Detection and Response

Status
Atlanta, USA
Full time
Remote
Compensation is not specified
Role
Security Engineer
Description

** :**

Circle operates as a financial technology firm situated at the heart of the emerging internet of money, enabling value to flow globally, almost instantaneously, and at a reduced cost compared to traditional settlement systems. This innovative internet layer opens up new avenues for payments, commerce, and markets, aiming to boost global economic prosperity and foster inclusivity. Our infrastructure, notably USDC, a blockchain-based dollar, empowers businesses, institutions, and developers to leverage these advancements and capitalize on the ongoing evolution of money and technology.

What You'll Become a Part of:

Circle prioritizes transparency and reliability in all operations. In our organizational growth journey, we are branching into robust jurisdictions around the world. Our success is fueled by speed and efficiency, with employees embodying our core company values of Multistakeholder commitment, Mindfulness, Pursuit of Excellence, and High Integrity. This effectively creates a remote work environment where teamwork thrives, encouraging new ideas and making everyone a stakeholder.

Responsibilities:

The Circle Security Team plays a critical role in safeguarding Circle, our customers, clients, and partners, as well as the financial markets supporting us. The team spearheads initiatives on information security, cybersecurity, business continuity, and managing vendor risks.

As a team member, you will primarily lead technical response efforts during various incidents and events, analyzing our cloud infrastructure (mainly AWS) and codebase. We seek an individual who can swiftly analyze logs, collaborate with technical peers, identify incident root causes, and possess that intuitive "a-ha" moment after exploring all possibilities.

You will also be tasked with formulating detections. The ideal candidate will exhibit proficiency in maintaining the team's technology stack and log pipelines for our security tools like SIEM and TIP.

You will maintain a proactive learning approach in a dynamic and engaging environment. As part of a small, global team, the role entails occasional on-call responsibilities during working hours, night shifts, and weekends to support security operations.

Key Areas of Engagement:

  • Engage in incident responses, collaborating across teams for investigations and resolutions.
  • Assume leadership during large-scale, multi-stakeholder incidents.
  • Develop and implement detection codes to identify anomalies and potential threats.
  • Drive enhancements in security incident management, event management, and security orchestration.
  • Foster relationships with peer teams in TechOps, engineering, and product development.
  • Contribute to the design and implementation of playbooks and response plans.
  • Participate in a global on-call rotation for handling security alerts and incident escalations.

Expectations in Line with Our Core Values:

  • Multistakeholder: Commitment to customers, shareholders, employees, families, and local communities.
  • Mindful: Emphasize respect, active listening, and keen attention to detail.
  • Driven by Excellence: Pursue excellence fervently and relentlessly, driven by our mission for customer success.
  • High Integrity: Uphold high moral and ethical standards, emphasizing open and honest communication.

Qualifications and Skills Needed:

  • 5+ years of incident response experience in a cloud environment.
  • Strong leadership and technical skills in Incident Response and Threat Detection.
  • Effective upward communication abilities.
  • Strong problem-solving skills and the ability to collaborate productively under pressure.
  • Proficiency in managing SIEM and SOAR solutions.
  • Experience with SQL, Python (or similar language), ISO 27001/27002, and NIST Cybersecurity Framework.
  • Familiarity with financial services or fintech environments is advantageous.
  • Proficiency in Google Suite, Slack, and Apple MacOS is preferred.
  • Ability to handle data from multiple sources.
  • Ideal candidates located in Eastern or Central Time Zones.
  • Senior engineers looking to progress in their careers are encouraged to apply.

Additional Information:

  • This role offers day-one PERM sponsorship for eligible candidates.
  • Compensation ranges are determined based on various factors such as experience, skills, and organizational requirements, among others.
  • Base Pay Range: $172,500 - $227,500 with an Annual Bonus Target of 15%.
  • Additional Inclusions: Equity, Medical, Dental, Vision, 401(k), vacation policy, paid sick leave, and holidays.
  • Circle values diversity and is an equal opportunity employer, fostering an inclusive work culture.

#LI-Remote

Skills Required
Avatar
Circle
Company size
Not specified
Location
United States
Description
Not specified
Status

More Full-time Jobs

Show more

Founder Success Manager (Web3)

Full time
Remote
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Middle
🌐 About Nomea VC
Nomea VC is a blockchain-focused venture fund investing in early-stage Web3, DeFi, and infrastructure startups. Beyond capital, we actively support founders with strategy, execution, and access to a global network.
🎯 Responsibilities
Act as the primary point of contact for founders across the portfolio
Support founders with non-investment needs: hiring, tooling, GTM, vendors
Coordinate introductions to mentors, advisors, and ecosystem partners
Organize founder check-ins, office hours, and internal syncs
Collect feedback from founders to improve portfolio support processes
Help standardize post-investment support playbooks
Work closely with investment, research, and marketing teams
✅ Requirements
2–4 years of experience in startups, VC, accelerators, or founder-facing roles
Strong communication and relationship-building skills
Solid understanding of startup operations and early-stage challenges
High level of ownership, empathy, and problem-solving ability
Comfort working in a remote, fast-moving environment
English — Upper-Intermediate or higher
➕ Nice to Have
Experience working directly with startup founders
Familiarity with Web3 / blockchain ecosystems
Background in operations, community, or program management
Network within startup, VC, or Web3 communities
💡 What We Offer
A front-row seat to early-stage Web3 building
Direct impact on founder outcomes and portfolio success
Fully remote setup with flexible working hours
Competitive compensation
High-autonomy role in a lean, founder-first VC team.
📩 How to Apply
Send your resume and a short note on why you enjoy working with founders
Payment in Crypto
3,500-6,000
Monthly
See details

Investment Analyst (Blockchain / Web3)

Full time
Remote
🚀 Job Opening: Investment Analyst (Blockchain / Web3)
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Junior+ / Middle
🌐 About Nomea VC
Nomea VC is a venture capital fund focused on blockchain, Web3, DeFi, and decentralized infrastructure. We invest in early-stage startups and actively support founders with strategic guidance, industry expertise, and global connections.
🎯 Responsibilities
Research and analyze early-stage Web3 and blockchain startups (pre-seed / seed)
Conduct investment research and due diligence
Prepare investment memos, pitch decks, and analytical reports
Evaluate tokenomics, business models, and market opportunities
Track and support portfolio companies
Communicate with founders and ecosystem partners
Monitor emerging trends across crypto, DeFi, infrastructure, and Web3
✅ Requirements
1–3 years of experience in venture capital, analytics, consulting, startups, or fintech
Strong analytical and research skills
Solid understanding of the blockchain and Web3 ecosystem
Ability to work with data, financial models, and presentations
Excellent written and verbal communication skills
English proficiency: Upper-Intermediate or higher
➕ Nice to Have
Previous experience in VC or high-growth startups
Knowledge of DeFi, tokenomics, L2s, and blockchain infrastructure
Financial modeling skills
Technical background or hands-on Web3 product experience
Active involvement in the crypto/Web3 community
💡 What We Offer
Opportunity to work in a global blockchain-focused VC fund
Exposure to top-tier Web3 founders and projects
Fully remote work with flexible hours
Competitive compensation with performance-based bonuses
Fast career growth in the venture capital ecosystem
Lean team with minimal bureaucracy and high impact
Payment in Crypto
3,333-5,833
Monthly
See details

Senior iOS developer for GameDev startup

Full time
Remote
Game Concept: “Reflex Arena”
Genre
Real-time competitive 1v1 / 2v2 skill-based action game
Platform
iOS (iPhone first, iPad optional)
Core Idea
A pure skill game where players compete in short, intense arena matches using precision timing, reflexes, and positioning — no RNG, no pay-to-win.
Each match lasts 60–90 seconds, making it ideal for mobile sessions while supporting competitive depth.
Core Gameplay Loop
Matchmaking
Skill-based MMR
Ranked & unranked queues
Arena Match
Small symmetrical arena
Players control a single character
Objective: score points by outplaying, not overpowering
Score & Progress
Win → rank up
Lose → learn (clear replay & stats)
Cosmetics only progression
Controls (Mobile-First, High Precision)
Left thumb: Movement (virtual joystick)
Right thumb: Aim + action swipe
Tap: Ability activation
Perfect timing windows reward precision (parries, counters)
👉 Designed to feel closer to a fighting game than a casual mobile title.
Mechanics (Skill > Stats)
Core Mechanics
Dash with cooldown (positioning skill)
Timed parry (frame-perfect defense)
Charged shots (risk vs reward)
Combo chaining (execution mastery)
No Randomness
Fixed damage
Fixed cooldowns
No crit chance
No loot boxes
Competitive Depth
Skill Expression
Reaction time
Prediction & mind games
Spacing & arena control
Cooldown tracking
Skill Ceiling
Easy to learn (1 minute)
Hard to master (1000+ matches)
Game Modes
Ranked Duel (Main Mode)
1v1
Best of 3 rounds
Seasonal leaderboard
Team Arena
2v2 coordinated play
Shared objectives
Training / Practice
Frame timing visualizer
Ghost replays of top players
Visual Style
Clean, minimalistic sci-fi arenas
High contrast for readability
60–120 FPS target (ProMotion)
👉 Performance clarity > visual noise.
Monetization (Fair & Competitive)
Skins (characters, arenas, effects)
Emotes / victory poses
Battle pass (cosmetic only)
🚫 No power boosts
🚫 No energy timers
🚫 No loot RNG
Technical Design (iOS-Optimized)
Native Swift
Metal / SpriteKit
Deterministic simulation
Server-authoritative logic
Rollback netcode (if real-time PvP)
Payment in Crypto
7,500-8,750
Monthly
See details

Rust/blockchain

Houston, USA
Houston, USA
Part time
Remote
I am seeking a world-class Systems Engineer / Rust Architect to build a proprietary asset extraction engine on the Solana network. This is not a "Web3 App" or a "DEX UI." This is a purely backend, low-latency machine designed to capture micro-value from market volatility.​The system mimics a "digital sluice," using high-precision math to harvest fractional differences that standard rounded-math bots ignore. We are scaling from a prototype to a 30-node distributed network managing 100+ concurrent execution "hands."​Core Technical Requirements​Low-Level Rust Mastery: You must be an expert in the Tokio runtime, asynchronous programming, and memory-safe mathematical operations.​Solana Network Physics: Deep understanding of the Sealevel runtime, custom WebSocket/Lumen bridges, and avoiding gRPC bottlenecks.​Jito & MEV Optimization: Proven experience with Jito Bundles, transaction shredding, and tip-optimization to ensure first-block inclusion.​Distributed Orchestration: Ability to architect a master-node system that manages 30+ regional nodes with seamless failover and zero-loss state management.​Precision Math: All logic must operate on u64 integers (Lamports) to avoid floating-point rounding errors. We do not "round" to the dollar; we capture the 9th decimal.​Key Responsibilities​Engine Hardening: Audit and optimize the core Rust logic for 0-latency execution.​Node Orchestration: Build the "Master Switch" to deploy, monitor, and update 30 nodes across global regions simultaneously.​The "Tax" Logic: Implement a secure, automated "sweeper" protocol that collects fractional value from all child-nodes into a master treasury without interrupting execution.​Redundancy: Ensure the system is "Anti-Fragile"—if a validator or node fails, the 50-drop safety protocol must trigger an instant failover.
Payment in Crypto
3,000
Monthly
See details

Frontend Developer

Full time
Remote
Create intuitive, responsive user interfaces that deliver exceptional user experiences across our platform. You'll transform designs into pixel-perfect, performant applications while ensuring smooth interactions and real-time data visualization. We're looking for developers who are passionate about user experience, have an eye for design details, and can build complex web applications that handle large datasets efficiently while maintaining responsive, accessible interfaces across all devices and browsers.
Responsibilities:
Build responsive, performant web applications
Implement designs with attention to UX detail
Integrate with backend APIs and manage application state
Ensure cross-browser compatibility and accessibility
Payment in Crypto
2,500-3,000
Monthly
See details