Developer Relations Manager, Americas
Job Summary:
Our company, Circle, delves into the realm of financial technology at the heart of the emerging internet of finance. We enable the seamless movement of value akin to digital data, globally, swiftly, and affordably. This advancement in technology opens up new doors for payments, commerce, and markets, aiming to boost global economic well-being and foster inclusion. Our infrastructure boasts USDC, a blockchain-based dollar, which empowers businesses, organizations, and developers to leverage these advancements and capitalize on the revolutionary nexus of money and technology.
What You Would Be Engaged In:
Circle maintains a commitment to transparency and stability in all facets of our operations. As we expand across robust jurisdictions globally, speed and effectiveness drive our success, with our team embodying our core values: Stakeholder Engagement, Mindfulness, Commitment to Excellence, and Upholding High Integrity. Our team consistently evolves in a remote work environment, where collaborative effort fuels collective success. We have built a flexible and diverse work culture that fosters innovation and treats everyone as a valued stakeholder.
Key Responsibilities:
We are searching for an exceptional team member to join our Developer Marketing team, focusing on developer relations for the Americas region. You will lead our developer advocacy initiatives to enhance engagement, facilitating all developers to learn and create using Circle products and services. Your pivotal role involves creating content, conducting workshops, and speaking at meetups to motivate both curious and seasoned builders within the Web3 space. As a trusted advocate, you will support developers to enhance their platform experience, offer insights for continuous improvements to internal teams, and play a vital part in representing Circle at industry events to foster relationships and bolster visibility within the developer community.
Main Tasks Include:
- Active participation in Web3 communities as a credible representative of Circle
- Crafting engaging content for developers to facilitate quick start on building applications with Circle tools and services
- Implementation of strategic developer growth and engagement strategies supporting Circle's GTM objectives
- Attendance, speaking engagements, and presentations at crypto and blockchain conferences focused on developers and builders
- Advocating for customer needs in the dynamic crypto and blockchain landscape
- Collaboration with ecosystem partners to amplify transparency and trust of Circle amongst developers
Qualifications You Bring to Circle:
- Over 7 years of experience in Developer Relations, Software Engineering, or a related field, preferably in the crypto and blockchain domain
- Exceptional written and verbal communication skills, particularly in simplifying technically complex topics
- Ownership mindset, taking full responsibility for your vision and initiatives to ensure success
- Proficient hands-on development experience, willing to demonstrate and build as required
- Strong organizational skills to handle multiple projects simultaneously without compromising quality
- Willingness to travel up to 30%+
Additional Information:
- This position offers day-one PERM sponsorship for eligible candidates
- Analyzing various factors to determine the starting pay, including relevant experience, skill set, qualifications, and organizational requirements
- Compensation package includes Base Pay Range from $145,000 - $192,500, and an Annual Bonus Target of 15%
- Additional benefits comprise Equity & Benefits (medical, dental, vision, and 401(k)), 10 days of paid sick leave per year, and 11 paid holidays per year in the U.S.
Circle is an equal opportunity employer, fostering diversity and inclusivity. We do not discriminate based on race, religion, nationality, gender, sexual orientation, age, marital status, veteran status, or disability. Moreover, Circle participates in the E-Verify Program in specific locations as mandated by law.
Note: Detailed compensation ranges may vary for candidates in different locations.
Junior AI Engineer
Join one of our fast-growing portfolio startups and help build simple AI features. You’ll work with large language models, create basic automations and chat tools, test ideas, fix small bugs, and integrate AI into everyday products.
Skills & Requirements:
0–2 years of experience (fresh graduates or self-taught welcome)
Basic Python knowledge
Interest in AI, LLMs or chatbots (personal projects are a big plus)
Quick learner who enjoys trying new things
Good English for team communication
Salary: $95,000 – $135,000 USD base + equity in the startup + full benefits
Description:
Sirex.vc not only invests — we actively help our portfolio companies hire great people. This Junior AI Engineer role is inside one of our AI-native startups. You’ll get real hands-on experience, learn from the best, and build things users actually use — all with full support from the Sirex team.
High risk. Zero apologies.
AI Agent Engineer
Join one of our high-conviction AI-native portfolio companies and build autonomous AI agents from the ground up. You’ll design agent architectures, implement tool-calling & memory systems, connect them to browsers/shell/APIs, run long-horizon tasks, and ship features that make the product feel alive and truly useful.
Skills & Requirements:
2–5 years building LLM-powered agents (LangGraph, CrewAI, ReAct, custom frameworks)
Strong Python skills + experience with tool calling, RAG, vector stores and evaluation
Bonus: familiarity with browser automation, self-hosted models or decentralized compute
Fast executor who loves shipping in ambiguity
Passion for agents that actually do real work (not just chat)
Salary: $160,000 – $230,000 USD base + meaningful equity (in the portfolio company) + full benefits + carry from Sirex network
Description:
Sirex.vc doesn’t only write checks — we actively help our portfolio companies recruit the best people on the planet. This AI Agent Engineer role is inside one of our fastest-moving startups building the next generation of autonomous agents. You’ll get direct support, intros, and operational help from the Sirex team while working on frontier technology that can change how the world uses AI.
High risk. Zero apologies.
Investment Analyst
Help the team find and evaluate early-stage startups. Search for promising projects, do quick market checks, prepare short summaries, track portfolio companies, and assist with basic due diligence.
Skills & Requirements:
0–2 years of experience (recent graduates or startup background welcome)
Strong interest in AI, crypto, and new technologies
Good at research, writing clear notes, and using spreadsheets
Organized, fast learner, and comfortable with uncertainty
English at upper-intermediate level
Salary:
$85,000 – $115,000 USD base + small carry + full benefits
Description:
At Sirex.vc we back crazy ideas in AI and decentralized tech. As Investment Analyst you’ll be right in the middle of the action — scanning hundreds of startups every week, learning how real venture works, and helping decide where we put money. Perfect first step into VC for someone hungry and smart. High risk. Zero apologies.
Operating Partner
Work side-by-side with portfolio founders to scale their companies at speed. Lead talent acquisition for critical roles, build operational systems and processes, shape go-to-market strategy, track key metrics, and support follow-on fundraising.
Skills & Requirements:
4–6+ years of hands-on experience in high-growth startups (previous Head of Operations, Chief of Staff, or founding team member strongly preferred)
Deep understanding of AI, decentralized infrastructure or developer platforms
Strong talent network and proven ability to recruit top technical talent
Exceptional execution skills and comfort operating in ambiguity
Data-oriented and systems thinker
Salary:
$175,000 – $245,000 USD base + significant carry + equity + full benefits
Description:
Sirex.vc doesn't just invest — we build alongside our founders. As Operating Partner, you will be the difference-maker for our portfolio companies, rolling up your sleeves to help them move faster and smarter than their competition. If you live for turning chaos into momentum and want to help create the defining companies of the next decade, this is your role. High risk. Zero apologies.
Venture Associate – AI & Decentralized Infrastructure
Source, diligence, and close early-stage investments in AI-native technologies, decentralized protocols, developer platforms, and compute infrastructure. Work side-by-side with founders post-investment on strategy, hiring, product roadmap, and scaling operations.
Skills & Requirements:
2–4 years in venture capital, startup operations, or technical role (engineering/product background strongly preferred)
Deep understanding of AI models, blockchain infrastructure, open-source ecosystems, and compute markets
Proven ability to build founder networks and spot asymmetric opportunities early
Exceptional analytical skills, written/verbal communication, and comfort with high-uncertainty decisions
Self-starter who moves fast and doesn’t need hand-holding
Salary:
$150,000 – $220,000 USD base + meaningful carry + equity upside + full benefits
Description:
Sirex.vc backs visionary founders redefining the open digital economy with asymmetric, high-conviction bets. We move at startup speed and expect the same from our team. As Venture Associate you’ll be on the front lines hunting the next 100x opportunities in AI, crypto infra, and compute — while rolling up your sleeves to help portfolio companies win. High risk. Zero apologies. If you live for the thrill of early-stage tech and want to build the future instead of just funding it, we want to talk.