The Firm

Castleton Tower is a boutique consulting firm founded by executives who have built and led quantitative research, data science, and technology teams at top-tier hedge funds and asset managers. We work exclusively with investment management firms (asset allocators, asset managers, hedge funds…

About BlockTech

BlockTech is a fast-paced algorithmic trading firm facilitating global cryptocurrency derivatives and spot trading while expanding into new markets. Positions, PnL, and hedging all run through our Core team. When the numbers our traders and risk team rely on are wrong, this is where i…

About Modus

We’re building the future of audit.

Modus Audit is backed by Lightspeed Venture Partners to invest in and modernize accounting firms using Agentic AI. We streamline financial audits from the ground up — starting with real customers and real revenue. We've partnered with our first firm, and…

About Fieldguide

Fieldguide is redefining trust in global commerce by modernizing how cybersecurity, privacy, and financial audits are done. We build software that empowers the practitioners who enable trust between businesses—automating and streamlining their work to deliver faster, higher-quality r…

Our Business

FISPAN Services Inc. (FISPAN) is an Enterprise SaaS FinTech company that allows banks to deploy embedded financial products and services to create a seamless banking connection for their corporate clients. Our product aims to provide instant scale and reach for banks who want to remove f…

Company Introduction

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-comm…

About BlockTech

BlockTech is a fast-paced algorithmic trading firm facilitating global cryptocurrency derivatives and spot trading while expanding into new markets. As we continue to grow rapidly, we are looking for a Software Engineer to join our Core team amid our exciting scale-up phase!

The role

In…

San Francisco, CA (Hybrid – 3 days onsite)

About LiveFlow

LiveFlow is building the next-generation accounting and finance platform - enabling lean finance teams to run massive enterprises.

We’ve raised over $21M from top-tier investors including YC, YC Continuity, Valar, Seedcamp, WndrCo, Moonfire, and…

Backend Engineer – AI Integrations

Location: Madrid, Spain
Department: Engineering

About Vic.ai

Vic.aiis building the future of autonomous accounting using AI. We help finance teams eliminate manual invoice processing and unlock real-time financial intelligence by combining advanced machine learning, OCR,…

This role is open to candidates based in LATAM, Africa, and Eastern Europe. Please note that as this role supports U.S.-based clients, candidates must be available to work during U.S. business hours aligned with the client’s time zone.

Our client is an established group of companies operating across…