---
title: 'Staff Software Architect at Seon'
canonical: 'https://feeny.ai/job/staff-software-architect-seon-budapest-28248f9xemnf'
type: 'job'
last_seen: '2026-10-18'
---

# Staff Software Architect at Seon

- **Company:** Seon
- **Location:** Budapest, Hungary
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-10-16
- **Last confirmed live:** 2026-10-18
- **Apply:** https://jobs.ashbyhq.com/seon/8f436767-0a91-4807-bb4e-20883f316187

## 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. You will join SEON's Engineering team, reporting to the Director of Engineering. As a Staff Software Architect, you will embed with our Customer Platform and Scoring engineering teams, helping define feasibility during product research and shaping the technical vision. Together these teams own the path a customer request follows through SEON: the platform customers configure and use, and the scoring engine that turns SEON’s vast dataset into a decision. Architectural challenges include multi-tenant isolation, integrating external data vendors within cost and latency limits, low-latency rule and model evaluation, scaling applications, and privacy and consent constraints on shared data. Location: Budapest, hybrid

## WHAT YOU’LL DO:

- Embed in the daily life of up to three engineering teams: Customer Platform (customer-facing applications, APIs, tenant management and provisioning) and Scoring (rules, scoring models and real-time decisioning).
- Ensure that all initiatives delivered by the teams have a technical design which is in-line with SEON's architectural best-practices, pragmatic (solves the right problems without being overly complicated), and complete and precise (covering all necessary aspects without loose ends).
- Ensure that security, scalability, and compliance are built into the foundation of all technical designs.
- Collaborate with the Tech Lead and Product Managers of the teams to identify the right ways to solve business problems.
- Deliver proof-of-concept solutions to demonstrate potential technical directions to take.
- Support the estimation effort during the initiative planning phase.
- Contribute to the delivery of initiatives via hands-on work when needed.
- Act as a technical mentor to the engineers within the Customer Platform and Scoring teams, elevating the overall engineering standards and practices.
- Surface recurring architectural challenges to the centralized Architecture team and contribute to company-wide solutions to those problems.
- Document design decisions in the form of Architecture Decision Records.
- Own the design of the interfaces between the three teams, such as the contract between enrichment data and scoring rules, so that changes in one team do not break the others.
- Occasionally support the revenue organization and customers when technical challenges like high-load events arise.

## WHAT YOU’LL BRING:

- Strong working knowledge of modern web development technologies, specifically TypeScript, Java, and Python.
- Experience with distributed system design.
- Experience designing and scaling high-throughput, low-latency distributed systems.
- Strong understanding of how web services and SaaS applications work.
- Experience designing multi-tenant SaaS platforms, including tenant isolation, provisioning, and configuration management.
- Experience integrating third-party data providers and APIs, and designing around their cost, latency, and reliability limits.
- Experience with real-time decisioning systems, such as rules engines, feature computation, or machine learning model serving.
- Expertise with Amazon Web Services (AWS).
- Experience with relational databases (specifically PostgreSQL or YugabyteDB).
- Experience with modern DevOps tools, particularly Kubernetes, Terraform, and ArgoCD.
- Strong understanding of data security best practices and designing systems that comply with strict data privacy standards (e.g., GDPR).
- Strong organizational skills and ability to work together with both technical and non-technical stakeholders.
- Experience and continuous curiosity on utilizing AI tools to improve engineering practices and SEON’s product
- Ability to work independently, prioritize your workload.
- Excellent written and verbal English communication skills.

## AMAZING IF YOU ALSO HAVE:

- Familiarity with the fraud prevention, AML, KYC, or cybersecurity domains is a strong advantage.
- Experience with Kafka and Flink is a plus.
- Experience with analytical or columnar databases, such as ClickHouse, is a plus.
- Experience with multiple database/search technologies, specifically Elasticsearch is a plus.

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/)

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