Senior Associate - Investor

645 Ventures; New York (NY); Hybrid; USD 120,000 - 230,000; Full time

Job summary

645 Ventures is seeking an Investor to join the Investment & Research team in New York City, focused on Fintech and B2B AI/Enterprise. You will work from the NYC office at least four days per week and help source, evaluate, and invest across seed, Series A, and growth investments.

You will collaborate with Co-Founders and General Partners, leverage Voyager and the firm’s network, and contribute to rigorous due diligence and investment execution to back the next generation of category-defining

Qualifications

• 3-6 years of experience in Venture Capital, Startups, or Angel investing (or equivalent)
• Strong sourcing, due-diligence, and investment evaluation skills
• Excellent written and verbal communication; ability to build relationships with founders and ecosystem partners
• Access to high-quality entrepreneurial talent and deal-flow networks

Responsibilities

• Source high-quality investment opportunities using firm networks and proprietary tools.
• Evaluate and invest in competitive early-stage startups aligned with fintech and B2B AI/Enterprise.
• Support due diligence and advocate for investments while building relationships in the tech community.
• Collaborate with Engineering and Portfolio Operations to support portfolio companies and scale investments.

Skills

Venture Capital

Seed/Series A

Networking

Financial Modeling

Due Diligence

Deal Sourcing

Job description

About the Role

As an Investor on our Investment & Research team, you will play a critical role in deepening 645 Ventures’ presence in our coverage areas including: Fintech & B2B AI/Enterprise.

This role will be responsible for investing in seed, Series A, and growth investments. 645 is a venture capital firm that leads and participates in investments from seed through the growth stage, with initial core investments ranging from $1M to $10M. This is complemented by a small-check program that backs high-potential founders in large markets with $100K initial investments and with reserves of $10–15M to double down on breakout winners at the late stages.

You will work closely with one of 645’s Co-Founders and Managing Partners. You will be deeply embedded in founder, developer, university, and entrepreneurial ecosystems to surface and invest in innovative companies in growing markets, while leveraging 645’s proprietary software platform, Voyager, our team’s domain expertise, and our extensive network to identify, diligence, manage, and lead investments in the next generation of category-defining startups.

About the Investment & Research Opportunity

We’re looking for an investor to join our Investment and Research (I&R) team who are passionate about innovation that is driven by software and people who are committed to partnering with founders to bring their visions to life. You will work from our New York City office at least four days per week with a focus on Fintech & B2B AI/Enterprise.

In this role, you will work closely with the firm’s full I&R team, Investment Partners and General Partners to source, evaluate, and invest in competitive early-stage startups that aspire to category defining businesses. Individuals will join a team committed to a standard of excellence and rigor in early stage sourcing, due diligence, and investment execution.

The hire will support due diligence and advocate for investments, while simultaneously building personal relationships and thought leadership in the tech community. The hire will also work with the firm’s Engineering team to use and build innovative software and AI tools to evolve how we work and the Portfolio Operations team to win competitive investments and support portfolio companies.

By contributing to the firm’s constantly increasing standard of excellence, quality of work, and investment returns, our team members are positioned to grow with us and become senior leaders in the organization and venture capital industry. We work best with people who are collaborative, versatile, curious, hard-working and always ready to pitch in.

Sourcing/Operations responsibilities may include (but not limited to):

• Sourcing responsibilities: Source high-quality investment opportunities using our proprietary technology and networks. Investment pipeline management and vetting for highest priority investments, organize sourcing and deal screening efforts, work on high priority due diligence.

• Investment Management, Evaluation, and Winning: Investment pipeline management and vetting for highest priority investments, organize sourcing and screening efforts, work on high priority due diligence, and use our proprietary technology and networks to evaluate high quality investments. Work with the full I&R team and General Partners to negotiate, structure, and win investments.

• Relationship building: Deepen relationships with top seed, early-stage and growth investors, founders, accelerators, portfolio companies, universities and other communities that can help us source billion-dollar companies.

• Investment Strategy: Support the firm’s investment strategy, enabling us to build out a leading practice over multiple years that enables us to source, win, and help scale early stage companies billion-dollar growth stage businesses. Identify the technology market waves that will be driving the growth of these companies.

Skills and Experience Requirements:

• At least 3-6 years of experience in Venture Capital, Startups, or Angel investing

• If not previously a full-time venture investor, ability to translate technical and operational skills to strong investment acumen over the long term, specifically in categories listed above.

• If previously working in Venture Capital, demonstrated ability to source high-quality investments that have exited or attracted competitive follow-on funding.

• Access to high-quality entrepreneurial talent coming out of leading fintech companies such as Ramp, Coinbase, Kalshi, RobinHood, Revolut, and others.

• Network in the startup community including exceptional founders, venture capitalists, and access to elite sources of deal flow that have produced exits in the $1 billion + range.

• Detail-oriented financial modeling and analytical skills

• Very strong written and communication the role will require both written and verbal communication to the firm’s stakeholders.

• Excellent ability to listen, understand, connect and build strong relationships

• Time management and team coordination, and strong ability to multitask.

About 645 Ventures

645 Ventures is a venture capital firm that partners with exceptional founders building iconic companies. The firm invests at the Pre-Seed, Seed, Series A, and growth stages across fintech, cybersecurity & B2B software, consumer, AI infrastructure/developer tools and deep tech. 645 Ventures supports founders through its resource-intensive approach encompassing hiring, customer introductions and growth strategy, leveraging its proprietary software platform Voyager and deep Connected Network. 645 Ventures manages over $550M in AUM across five funds with investments in industry leaders including True Anomaly, Shield AI, Setpoint, Circeus, and Iterable, among others.

We have offices in both New York City & South Park, San Francisco. We have built a team and culture that is inclusive, collaborative, and which prioritizes a client-service mindset. 645 is deeply committed to diversity, equity and inclusion—and our team and community reflect that commitment.

Learn more at www.645ventures.com.