lemon.markets Tech Stack

Brokerage-as-a-Service API for banks and fintech platforms

Financial Services Berlin, BE 51–200 employees Founded 2020 Privately Held

lemon.markets provides a Brokerage-as-a-Service platform that abstracts away the complexity of capital-markets infrastructure for Banks, Asset Managers, and FinTechs. Their stack—Python, FastAPI, PostgreSQL, Go, AWS—is deliberately lean and API-first, built to handle regulated financial transactions at scale. Active hiring across security, engineering, and ops (alongside a notable Chief of Staff and Head of Sales hire) reflects a company stabilizing compliance foundations while ramping distribution.

Tech Stack 19 technologies

Core StackPython FastAPI AWS PostgreSQL Go Java Ruby JavaScript TypeScript Kubernetes Terraform Helm GitHub AWS GuardDuty AWS Control Tower CloudTrail OPA VPC AWS WAF

What lemon.markets Is Building

◆Challenges

Investment product expensive
Brokerage infrastructure broken
Cumbersome investment product launch
Balancing greenfield approach with enterprise governance
Complexity for partners

▲Active Projects

Annual/quarterly planning and budgeting
Provider selection framework
Trading api product improvement
Brokerage api platform
Brokerage api offering
Joint gtm with dwpbank
Build outbound engine
Scale sales engine
Iso 27001 certification journey
People talent & founders associate functions

Hiring Activity

Decelerating20 roles · 5 in 30d

Department

Security

Engineering

Executive

Ops

Sales

Legal

Risk

Seniority

Senior

Lead

Mid

Intern

Notable leadership hires: Chief of Staff, Head of Sales

Company intelligence

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About lemon.markets

lemon.markets builds infrastructure that allows financial institutions and fintech platforms to offer investment products to end customers without managing brokerage operations directly. The core offering is a REST API that abstracts securities trading, clearing, and settlement workflows. Founded in 2020 and based in Berlin, the company operates across the European market with a focus on reducing the friction and cost barriers that make investment products expensive and slow to launch for their customers. Current work spans platform API improvements, GTM partnership execution (including a joint GTM with a regional bank), and compliance maturity (ISO 27001 certification journey).

HeadquartersBerlin, BE

Company Size51–200 employees

Founded2020

Hiring MarketsGermany

Frequently Asked Questions

What tech stack does lemon.markets use?

Python, FastAPI, PostgreSQL, Go, Java, AWS (including Kubernetes, Terraform, GuardDuty, Control Tower, CloudTrail, OPA, VPC, WAF), plus GitHub for version control.

Is lemon.markets hiring engineers?

Yes. Active engineering roles total 3 (mostly senior/lead level); 19 total open roles across security, ops, sales, legal, and risk. Hiring is Germany-based.