Top Software Engineer Jobs in Hungary

Develop and maintain production web scrapers in Python for SEON’s real-time data enrichment platform. Investigate cross-component issues, work with proxy infrastructure, write comprehensive tests, participate in incident response, and apply reliability, observability, and SRE practices. The role includes code reviews, deployment pipeline work, AI-assisted development, and collaboration with backend, infrastructure, and product teams. Candidates should have 1–2 years of software engineering experience or equivalent project experience, web scraping exposure, and foundational networking knowledge.

Build and maintain end-to-end ERP features across Django backend services and Next.js frontend applications. Develop models, APIs, database migrations, tenant isolation, and row-level security; understand legacy C++ desktop behavior; write tests, monitor production releases, conduct code reviews, and collaborate with senior and junior engineers. The role requires independent delivery, strong communication, attention to quality, and a focus on reliable, performant systems.

Designs, develops, tests, deploys, and maintains reliable software systems and services. Collaborates with stakeholders, writes maintainable code, participates in reviews and Agile ceremonies, troubleshoots issues, supports monitoring and platform health, and contributes to planning, estimation, and technical decisions.

Design and build Go services for Telnyx’s serverless platform, function deployment pipeline, global control plane, and edge infrastructure. Own backend APIs, resource lifecycles, workload deployment, asynchronous workflows, observability, and reliability. Work with Kubernetes, distributed systems, relational databases, and multi-region services. Improve developer experience through APIs, CLI tooling, and clear error handling, while participating in on-call and diagnosing production performance and reliability issues.

Design and implement robust Rust and C++ services and libraries for trading, payments, and cryptocurrency systems. Build scalable, low-latency distributed systems, network services, and asynchronous applications supporting revenue-critical infrastructure. Collaborate with product and engineering teams, debug across the operating system, network, and application layers, and take end-to-end ownership of reliable, secure, and high-performance systems.

Build and operate foundational backend systems powering a globally distributed ecommerce search platform at massive scale. Responsibilities include designing high-traffic, highly available services, improving performance and reliability, managing deployment automation, capacity planning, observability, and production operations. The role involves working across the technology stack and collaborating within an ownership-driven engineering team.

Build and maintain a scalable React component library and design system integrated with a custom CMS. Deliver accessible, responsive, pixel-perfect interfaces, establish frontend architecture and coding standards, document reusable components, optimize performance and developer experience, and mentor engineers. Collaborate closely with design, product, marketing, and engineering teams across multiple fast-moving initiatives.

Develop frontend and full-stack healthcare software for an oncology team using Angular, TypeScript, C#, and .NET. Build responsive interfaces, backend services, and REST APIs while delivering secure, tested, maintainable code. Collaborate with UX, QA, Product, and engineering teams, participate in design discussions and code reviews, troubleshoot performance issues, and improve engineering practices. Senior developers may take technical ownership, contribute to architecture, and mentor colleagues.

Develop Angular and TypeScript web applications, with optional C# and .NET full-stack responsibilities. Build responsive interfaces, backend services, and REST APIs while maintaining secure, tested, and maintainable code. Collaborate with UX, QA, product, and engineering teams; participate in design discussions, code reviews, troubleshooting, and performance improvements. Senior developers may own technical areas, contribute to architecture, and mentor colleagues.

Build and operate full-stack systems for an AI-powered offensive security platform. Responsibilities include developing React frontends, TypeScript APIs, Kotlin and Go backend services, deploying on AWS, designing scalable systems, optimizing databases, supporting production, and owning features from concept through deployment. The role involves close collaboration with AI and security researchers in a fast-paced remote startup.

Design, implement, and scale Rust services and libraries for trading, payments, and crypto. Build reliable, high-performance distributed systems, collaborate on architecture, write testable async network code, and own production systems end-to-end.

Supports software application development and testing while gaining hands-on experience across front-end, back-end, full-stack, and test automation areas. Responsibilities include writing and testing code, participating in Agile ceremonies, collaborating with technical teams, documenting work, and learning development tools, frameworks, and quality practices under mentorship.

Lead backend engineering for GEO products that analyze and improve brand visibility across AI-powered search platforms. Responsibilities include architecting LLM integrations, evaluating AI-generated results, and ensuring observability, testing, cost efficiency, resilience, and graceful degradation. The role provides technical leadership, guides delivery, assesses emerging AI technologies, and partners with Product and Engineering to build scalable backend solutions.

Develop and maintain scalable full-stack customer platform features using Node.js, TypeScript, React, NestJS, REST, and database technologies. Design modular systems and microservices, optimize performance, write automated tests, review code, improve architecture, and contribute throughout the software development lifecycle. Mentor engineers, collaborate in cross-functional Agile teams, support continuous delivery, and help evolve SEON’s fraud prevention and customer-facing applications.

Build and maintain developer tools across SDKs, React Email, CLI, MCP, integrations, and supporting backend services. Collaborate on APIs, compatibility, testing, releases, documentation, and shared tooling. Support developers through GitHub issues and pull requests while designing reliable interfaces, error handling, and backward-compatible experiences. The role also involves operating systems with authentication, retries, rate limits, queues, monitoring, and error recovery.

Develop and maintain a Java-based web application using Agile Scrum or Kanban. Responsibilities include feature development, bug fixing, reusable and scalable code design, collaboration with product, support, and QA teams, and demonstrating completed features to internal and customer audiences. The role requires full-stack experience with Java, Spring, Angular, TypeScript, databases, Git, and continuous integration, with additional exposure to web security, testing, documentation, and business analysis.

Builds software solutions for end users as a general full-stack engineer. The role emphasizes collaboration, ownership, accountability, fast-paced execution, adaptability, multitasking, rapid learning, and an ambitious, outcome-driven approach.

Develop and maintain Linux kernel and BIOS software for Arista hardware products and EOS. Responsibilities include kernel feature development, upstream integration, CPU and BIOS vendor integration, hardware bring-up, debugging, performance tuning, project ownership, and customer interaction. The role requires strong C/C++ and Python experience, software engineering fundamentals, troubleshooting ability, and solution design skills.

Own end-to-end migration of business domains from a legacy desktop ERP to a modern web ERP. Design data models, APIs, tenant isolation, cutover and rollback plans; execute safe live-data migrations; maintain production reliability; review backend and frontend code; collaborate with Product; mentor engineers; and occasionally modify legacy C++ code.

Sets architectural direction across assessment products and services, drives cross-team technical decisions, writes architecture and design documentation, defines service boundaries, evaluates vendors, mentors senior engineers, establishes AI engineering practices, and improves reliability and testing strategy.

Build and improve Canvas features across frontend, backend, and cloud infrastructure. Write tested code, participate in code reviews, investigate production issues using logs and dashboards, and collaborate with product and design. The role supports learning in accessibility, security, infrastructure, and software quality while requiring TypeScript and React experience, database knowledge, testing familiarity, Git, and strong Hungarian and English communication.

Owns end-to-end test strategy, designs scalable backend and UI automation frameworks, integrates automated testing into CI/CD pipelines, performs exploratory testing, and advocates for testability and reliability across engineering and product. The role requires strong programming, Kubernetes and distributed-systems knowledge, debugging ability, and cross-functional ownership in a fast-moving startup.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Design, develop, and maintain high-quality web applications using CodeIgniter and PHP. Collaborate with cross-functional teams to define and ship features, ensure application performance and quality, identify and fix bugs, and maintain code quality and automation.

Senior Software Engineer to design and implement C++/Python software, accelerate workloads with CUDA, develop and maintain Linux kernel modules and system services, optimize system and GPU performance, manage Linux systems, mentor junior engineers, and integrate AI technologies across products.