SEON Technologies Ltd. logo

Java Fullstack Software Engineer

Job Overview

Location

Budapest

Job Type

Full-time

Category

Full-Stack Engineer

Date Posted

March 12, 2026

Full Job Description

đź“‹ Description

  • • Join SEON Technologies Ltd. as a Java Fullstack Software Engineer and become an integral part of our dynamic Scoring Team, the very core of our cutting-edge fraud prevention and AML compliance solutions.
  • • In this pivotal role, you will contribute significantly to the development and enhancement of our sophisticated platform, which empowers thousands of companies globally to combat fraud, mitigate risk, and safeguard their revenue streams.
  • • SEON's proprietary technology leverages over 900 real-time, first-party data signals to enrich customer profiles, detect suspicious activities, and streamline compliance processes, all within a unified and intuitive interface.
  • • You will be instrumental in delivering high-quality, robust code, with a keen focus on simplicity, exceptional performance, and long-term scalability, ensuring our platform remains at the forefront of the industry.
  • • Your responsibilities will extend to developing and maintaining critical database-related application features, ensuring the integrity and efficiency of our data infrastructure.
  • • You will actively contribute to both the backend and frontend development of our applications, working with core technologies such as Java, Spring Boot, RESTful APIs, and Relational Database Management Systems (RDBMS).
  • • A key aspect of your role will involve maintaining and evolving existing features across our system, ensuring they meet the highest standards of functionality and user experience.
  • • You will play a proactive role in supporting, refining, and suggesting innovative improvements to the current codebase, fostering a culture of continuous enhancement.
  • • Providing technical expertise and conducting thorough code reviews for your fellow team members will be a crucial part of your contribution, promoting best practices and knowledge sharing.
  • • You will be involved throughout the entire Software Development Life Cycle (SDLC), from the initial design phases of new features and services to their successful implementation and deployment.
  • • Supporting and mentoring other members of the Scoring Team will be a valued aspect of your role, contributing to a collaborative and high-performing team environment.
  • • You will be tasked with investigating and resolving issues reported from our production systems, ensuring the stability and reliability of our services for our global clientele.
  • • This role offers a unique opportunity to work within a product-led growth environment, where your contributions directly impact the success and evolution of SEON's offerings.
  • • You will collaborate closely with cross-functional teams, including product, design, and other engineering disciplines, to deliver cohesive and impactful solutions.
  • • Embrace an agile mindset with end-to-end responsibility, embodying the 'you build it, you run it' philosophy, which fosters ownership and accountability.
  • • Contribute to the continuous improvement of our fraud prevention capabilities by enhancing our complex real-time analysis and optimizing user experience flows.
  • • This position offers flexibility with a hybrid work schedule, based in our Budapest office, allowing for a healthy work-life balance.
  • • You will be part of a company that has a proven track record of success, having helped clients reduce fraud by up to 95% and achieve significant ROI, and are partnered with industry leaders like Revolut and Wise.
  • • Your work will directly contribute to SEON's mission of making the digital world safer by providing advanced tools for fraud prevention and compliance.
  • • We encourage a culture of innovation and continuous learning, providing opportunities to explore new technologies and methodologies.
  • • You will have the chance to work on challenging problems at scale, dealing with large volumes of data and complex real-time processing requirements.
  • • Your input will be valued in shaping the future direction of our scoring and fraud detection algorithms.
  • • This role is ideal for an engineer who is passionate about building impactful products and thrives in a fast-paced, growth-oriented environment.
  • • We are committed to fostering a diverse and inclusive workplace where every individual's unique contribution is recognized and valued.
  • • You will be working with a talented and motivated team dedicated to solving complex challenges in the fintech and cybersecurity space.
  • • The opportunity to grow your skills and career within a rapidly expanding international company is significant.
  • • You will be at the forefront of developing solutions that protect businesses and consumers from financial crime.
  • • Contribute to the development of robust and scalable microservices that power our fraud detection engine.
  • • Participate in architectural discussions and contribute to the technical roadmap of the Scoring Team.
  • • Ensure the security and integrity of our systems through best-practice coding and development processes.
  • • Collaborate with product managers to translate business requirements into technical specifications and actionable development tasks.
  • • Drive innovation by researching and implementing new technologies and approaches to fraud detection and prevention.
  • • Mentor junior engineers and share your knowledge to elevate the team's overall technical capabilities.
  • • Actively participate in agile ceremonies, including sprint planning, daily stand-ups, and retrospectives, to ensure efficient project delivery.
  • • Contribute to the development of comprehensive documentation for features, services, and system architecture.
  • • Proactively identify and address technical debt to maintain a healthy and sustainable codebase.
  • • Champion a culture of quality and continuous improvement within the engineering team.
  • • Leverage your expertise to enhance the efficiency and effectiveness of our fraud prevention algorithms.
  • • Work on challenging problems related to data processing, real-time analytics, and distributed systems.
  • • Contribute to the development of a highly available and fault-tolerant platform.
  • • Be a key player in a team that is passionate about building a world-class product that makes a real difference.
  • • This role is an excellent opportunity for a seasoned full-stack engineer looking to make a significant impact in the rapidly evolving field of fraud prevention.

Skills & Technologies

TypeScript
Java
React
Spring
AWS
Full Stack
Hybrid

Ready to Apply?

You will be redirected to an external site to apply.

SEON Technologies Ltd. logo
SEON Technologies Ltd.
Visit Website

About SEON Technologies Ltd.

SEON Technologies provides fraud prevention software for online businesses. Its platform combines device fingerprinting, IP and email analysis, behavioral biometrics, and real-time risk scoring to detect and block fraudulent transactions, account takeovers, and bonus abuse. The system integrates via API or SDKs into e-commerce, fintech, igaming, and BNPL workflows, enabling risk teams to automate decisions and investigate cases through a dashboard. Founded in Budapest in 2017, the company serves mid-market and enterprise clients globally.

Get more remote jobs like this

Subscribe to the weekly newsletter for similar remote roles and curated hiring updates.

Newsletter

Weekly remote jobs and featured talent.

No spam. Only curated remote roles and product updates. You can unsubscribe anytime.

Similar Opportunities

Argentina
Full-time
Expires May 20, 2026
JavaScript
TypeScript
React
+4 more

1 month ago

Apply
Argentina
Contract
Expires May 9, 2026
JavaScript
TypeScript
React
+4 more

2 months ago

Apply
⏰ EXPIRES SOON
Argentina
Full-time
Expires May 2, 2026 (Soon)
Python
JavaScript
TypeScript
+6 more

2 months ago

Apply
❌ EXPIRED
Argentina
Full-time
Expired Apr 14, 2026
JavaScript
TypeScript
Kotlin
+5 more

2 months ago

Apply