---
title: 'Software Engineer (AML Team) at Seon'
canonical: 'https://feeny.ai/job/software-engineer-aml-team-seon-budapest-ctrjz6q71fcy'
type: 'job'
last_seen: '2026-11-01'
---

# Software Engineer (AML Team) at Seon

- **Company:** Seon
- **Location:** Budapest, Hungary
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-10-20
- **Last confirmed live:** 2026-11-01
- **Apply:** https://jobs.ashbyhq.com/seon/d269d5d6-621e-4ed6-b794-a8968fc8772b

## Job description

SEON is the command center for fraud prevention and AML compliance, helping thousands of companies worldwide stop fraud, reduce risk and protect revenue. Powered by 900+ real-time, first-party data signals, SEON enriches customer profiles, flags suspicious behavior and streamlines compliance workflows - all from one place. SEON provides richer data, more flexible and transparent analysis, and faster time to value than any other provider on the market. We’ve helped companies reduce fraud by 95% and achieve 32x ROI, and we’re growing fast, thanks to our partnerships with some of the world’s most ambitious digital brands like Revolut, Wise, and Bilt.

As a Software Engineer on the AML team, you’ll build and maintain the TypeScript applications and services behind SEON’s AML products. You’ll work closely with product managers to understand what customers actually need, turn requirements and customer requests (including those raised through NRQs) into well-scoped features, and ship them with quality, performance and security in mind. We want someone who asks “why”, flags gaps early and challenges solutions when something doesn’t add up. You are a continuous learner biased towards action. You take ownership of your work from scoping through delivery, and you help teammates grow. This position is in Hungary, with the flexibility to work remote or hybrid.

## WHAT YOU’LL DO:

- Implement TypeScript features for our AML services (case management, business backends and person service), and our customer facing Admin Panel, making sound design choices for small features and considering performance and error handling as you build
- Contribute to design discussions with informed questions, and explain the reasoning behind design decisions in your team’s domain
- Scope your work independently, confirm with your PM and partners what “complete” means before you start, and raise issues with requirements early
- Consistently deliver high-quality code with simplicity, security, testability, performance, and scalability in focus, and with tests that make your code a good example for the team
- Maintain and develop client-side JavaScript libraries, the Node.js backend of AML Services and Nest.js / ExpressJS services
- Debug moderately complex issues independently using observability tools, find root causes rather than symptoms, and close the monitoring and alerting gaps you discover
- Write tests for the features you build, and design the testing approach for more complex features
- Fix issues reported by QA and customers based on discussed priorities
- Track implementation progress using company processes and software (github / jira)
- Review code written by the team with an eye on security, performance and quality, giving specific, constructive feedback that helps others grow
- Cooperate with your PM, the QA team, Architects and the Devops team on a continuous basis, and frame technical decisions in terms of customer outcomes.
- Contribute to planning and estimation.
- Improve CI/CD pipelines and development tooling for your team by removing bottlenecks, and keep pull requests small and reviewable
- Mentor junior teammates with structured intent
- Work with large datasets, such as screening and watchlist data, keeping them performant, accurate and auditable.
- Use AI-assisted development tools in your day-to-day work, and help us find where AI can improve our products and the way we build them.
- Help teammates adopt AI practices by sharing prompting patterns that work, and know when AI output needs heavy human review

## WHAT YOU’ll BRING:

- Excellent problem-solving skills
- At least 3 years of experience in Software Development
- Good working knowledge JavaScript/Typescript and stable knowledge of HTML5/CSS3 and RESTful API development
- Ability to cooperate with team members in an Agile development environment
- Experience scoping and delivering features independently, from ambiguous requirements to validated work
- Experience debugging issues across services using observability tools
- Out-of-the-box thinking combined with the ability to adapt to a fast-paced environment
- Fluency in English
- Technical requirements:
- JavaScript, Typescript, React, Node and NestJS
- HTML5, CSS3 (Sass)
- PostgreSQL

## AMAZING IF YOU ALSO HAVE:

- Experience with data heavy applications
- Experience working in a regulated industry, such as AML, KYC or financial services
- AWS
- Terraform

SEON Technologies collects and processes personal data in accordance with applicable data protection laws. If you are a European Job Applicant see the [privacy notice](https://apply.workable.com/seon-technologies-1/gdpr_policy?lng=en) for further details. SEON is an equal opportunity employer. We strive to embrace what makes each one of us unique; we each have our own story. Whether looking at our current staff or future team members, we believe that everyone has something to contribute, and our employment practices reflect that. We do not make an employment decision based upon race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. Please let your recruiter know if you need reasonable adjustments to our recruitment process.

## About Seon

## Company Overview
- **One-liner**: SEON provides an AI-powered fraud prevention and AML compliance platform that uses over 900 real-time data signals to help businesses detect hidden threats, automate compliance, and deliver seamless customer experiences.
- **Entity Type**: Private (Series C; $187mn total funding)
- **Headquarters**: Budapest, Hungary (with offices in Austin, London, Jakarta, and Singapore)
- **Founded**: 2017
- **Founders**: Tamás Kádár and Bence Jendruszák

## Core Business
- **Primary industries**: Fraud prevention, AML compliance, identity verification, risk management
- **Target customers**: B2B – fintech, payments, eCommerce, iGaming, and other online businesses
- **Mission**: “Redefine global fraud prevention by safeguarding the entire customer journey, allowing businesses to operate confidently and stay ahead of evolving risks.” [seon.io/about-us](https://seon.io/about-us/)

## Products & Services
- **AI Fraud Prevention Platform**: Real-time risk scoring using 900+ first-party signals, device intelligence, behavioral analysis, and customizable rules/ML models. Covers pre-onboarding, onboarding, payments, and post-login activity. (SaaS)
- **AML Compliance Suite**: Automated AML screening, suspicious activity report (SAR/STR) generation, regulatory reporting, case management, and network analysis to detect money laundering rings. (SaaS)
- **Identity Verification**: Document, selfie, and address verification enriched with fraud signals to accelerate onboarding of legitimate users. (SaaS)
- **AI Tools & Automation**: AI rules builder, model tuning, score explainability, context-rich summaries, and AML screening agent that cross-validates hits. [seon.io](https://seon.io/)

## Market Standing
- **Valuation/Market Cap**: Not publicly available
- **Key Metric**: Total funding of $187mn (Series C led by Sixth Street); has prevented over $300bn in fraud and money laundering; serves 5,000+ businesses globally.
- **Notable Investors/Partners**: Sixth Street (lead investor, Series C); global partner program launched in 2025.
- **Growth Signals**: Grew from 200 to 300+ employees between 2024 and 2026; opened offices in London (2025) and Singapore (2026); launched identity verification and opened data layer to external AI tools (2026); daily transactions secured exceed 15 million. [seon.io/about-us](https://seon.io/about-us/) [linkedin.com](https://www.linkedin.com/company/seon-tech)

## Competitive Advantages
- **Data breadth**: 900+ first-party real-time signals (device, IP, email, behavioral) that other tools miss.
- **Speed of implementation**: Average 14 days from deployment to impact, with hands-on support.
- **Transparent AI**: Every decision is explainable and auditable – users see which signals drove the risk score.
- **End-to-end coverage**: Single platform covers fraud prevention, AML, identity verification, and regulatory reporting across the customer lifecycle.
- **Flexible analysis**: Supports both rules-based and AI-driven approaches with full customisation. [seon.io](https://seon.io/)

## Strategic Focus
- **AI-driven efficiency**: Cutting manual review time by up to 50% through automated case summaries, model tuning, and AI-generated regulatory reports.
- **Global expansion**: New offices in APAC (Singapore) and EMEA (London) to serve a growing international customer base.
- **Platform extensibility**: Opening data layer to third-party AI tools and building a partner ecosystem.
- **Identity verification launch**: Expanding from fraud detection into identity assurance to cover the full onboarding journey. [seon.io/about-us](https://seon.io/about-us/)

## Why Work Here
- **Culture**: “No hierarchy,” open communication, transparency, customer obsession, innovation, and ownership. [seon.io/careers](https://seon.io/careers/)
- **Work policy**: Hybrid – encouraged to work from home a few days per week, with office collaboration the rest.
- **Perks**: Flexible hours, private health insurance, enhanced parental leave, employee assistance & mental health support, ESOP (employee stock ownership plan), weekly language courses (40+ languages), learning & development budget.
- **Team**: 300+ employees across the Americas, EMEA, and APAC; 120+ R&D engineers; strong emphasis on impact and autonomy.
- **Growth**: Rapidly scaling company with clear career progression and exposure to cutting-edge AI/ML fraud-fighting technology. [seon.io/careers](https://seon.io/careers/) [apply.workable.com](https://apply.workable.com/seon-technologies-1/)

## Sources
1. [seon.io – Product overview](https://seon.io/)
2. [seon.io/careers – Careers & perks](https://seon.io/careers/)
3. [seon.io/about-us – Mission, milestones, team](https://seon.io/about-us/)
4. [linkedin.com – Company page](https://www.linkedin.com/company/seon-tech)
5. [apply.workable.com – Open positions (archived)](https://apply.workable.com/seon-technologies-1/)

## Other roles at Seon

- [Senior AI & ML Engineer - AML Search Quality](https://feeny.ai/job/senior-ai-ml-engineer-aml-search-quality-seon-budapest-c8bmtqjxywe1) — Budapest, Hungary
- [Senior Fraud Consultant (Spanish Speaking)](https://feeny.ai/job/senior-fraud-consultant-spanish-speaking-seon-austin-jj2hyr7b9jpm) — Austin, TX
- [Implementation Consultant](https://feeny.ai/job/implementation-consultant-seon-budapest-94py6kh0bwss) — Budapest, Hungary
- [Senior Motion Designer](https://feeny.ai/job/senior-motion-designer-seon-budapest-2sxts8wgjvrn) — Budapest, Hungary
- [Senior Software Engineer (AML Team)](https://feeny.ai/job/senior-software-engineer-aml-team-seon-budapest-b98fs3qg9nt7) — Budapest, Hungary
- [Director of Information Technology](https://feeny.ai/job/director-of-information-technology-seon-united-states-kg16qyhzje7e) — United States
- [Workplace Operations Associate](https://feeny.ai/job/workplace-operations-associate-seon-london-qx6hgv3yqzef) — London, United Kingdom
- [Staff Software Architect](https://feeny.ai/job/staff-software-architect-seon-budapest-28248f9xemnf) — Budapest, Hungary
- [Senior FP&A Manager](https://feeny.ai/job/senior-fp-a-manager-seon-budapest-0stjw8yy9fbb) — Budapest, Hungary
- [Associate Software Engineer – Web Scraping](https://feeny.ai/job/associate-software-engineer-web-scraping-seon-budapest-w1t6c4630aj2) — Budapest, Hungary