Fullstack Engineer, Sardine

Investigator Tools

€112-128k

+ Equity

React

TypeScript

Node.js

Senior and Expert level

Remote from Europe, UK

Fraud prevention & compliance infrastructure

Be an early applicant

Fraud prevention & compliance infrastructure

201-500 employees

FintechB2BComplianceMachine LearningSaaSAPICyber SecurityFraud

Be an early applicant

€112-128k

+ Equity

React

TypeScript

Node.js

Senior and Expert level

Remote from Europe, UK

201-500 employees

FintechB2BComplianceMachine LearningSaaSAPICyber SecurityFraud

Company mission

To remove the friction and risks associated with high velocity money movement, from banks and cards through to digital wallets and crypto.

Job

Company

Role

Who you are

Core technical stack: Extensive experience writing efficient, production-ready code in TypeScript, Node.js, React, Go and other server programming languages
Scale and data expertise: Proven experience working with data-intensive applications, complex workflows, and big data at scale
Pipeline proficiency: Deep background in technical data modeling and building robust production data pipelines
High-growth adaptability: The ability to thrive, execute, and deliver consistently in a fast-paced, high-growth startup environment
Independent execution: A proven track record of taking extreme ownership of ambiguous problems and independently turning them into polished, scalable features

What the job involves

As a Full Stack Engineer at Sardine, you will bridge the gap between complex technical backend systems and user-friendly interfaces to help us stop fraud in its tracks
This is a dynamic, high-impact role
On average, you will be working 60% on backend development and 40% on frontend development but are willing to help out wherever is needed
You will build out data-intensive applications, including advanced graph systems used to uncover complex fraud rings
You will own features end-to-end at a massive scale, ultimately empowering fraud analysts to uncover and investigate suspicious transactions faster than ever before
Own features end-to-end: Drive the product lifecycle from determining the initial problem space and user needs, to technical modeling, UX execution, and iterative improvements based on vague requirements
Translate complexity to usability: Build out complex technical systems into intuitive, user-friendly interfaces
Build fraud-fighting tools: Develop and optimize advanced graph systems to visualize fraud rings, and build performant search tools that help analysts rapidly identify suspicious transactions
Collaborate cross-functionally: Work tightly with Design, Data, Product, and Account Management teams to align engineering output with business and user needs
Ensure system health: Proactively diagnose, triage, and resolve bugs while writing highly efficient and performant code

Our take

Identity and payment fraud is one of the biggest dangers facing online businesses. Sardine is setting out to solve this problem by building the first zero-day fraud prevention technology.

Sardine's technology traces intrinsic behaviour patterns to identify so-called "bad actors" online, and detects fraudsters using machine-learned fraud scores and user behavior biometrics.

The company calls itself the world's first FaaS (Fraud Detection as a Service), and its solutions are already drawing business from next-gen crypto and financial service institutions. Onboarding these institutions and scaling its customer base at pace will ensure that Sardine maintains its frontrunner position.

Freddie

Company Specialist at Welcome to the Jungle

Insights

Top investors

21% employee growth in 12 months

Glassdoor (4.5)

Company

Funding (last 2 of 4 rounds)

Feb 2025

$70m

SERIES C

Sep 2022

$51.5m

SERIES B

Total funding: $145.6m

Company benefits

Generous equity compensation
Work from anywhere: Remote-first Culture
Unlimited paid time off and minimum 2 weeks/year of mandatory vacation
100% of health insurance, dental, and vision coverage for employees and 50% for dependents
4% matching in 401k
Company-wide offsites, the last one was at Miami
MacBook Pro delivered to your door
One-time stipend to set up a home office — desk, monitors, etc
Monthly meal stipend
Annual fitness allowance
Unlimited access to an expert financial advisory

Company HQ

SoMa, San Francisco, CA

Leadership

Soups Ranjan

(Co-Founder & CEO)

Previously worked as Director of Data Science & Risk at Coinbase, and was Head of Crypto at Revolut.

Zahid Shaikh

(Co-Founder)

Previously worked as a Senior Product Manager at both PayPal and Uber, and was Senior Product Owner at Revolut.

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