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.

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.

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.

Design and develop the core vCluster Platform, focusing on Kubernetes internals, tenant isolation, container orchestration, and scalable resource-sharing systems. Build high-performance Go software, own features from technical design through release, solve complex systems-architecture problems, and contribute to open-source projects. The role requires autonomous technical leadership, active collaboration with the Kubernetes community, and experience in high-growth startup environments.

Design and build the vCluster Platform using Kubernetes internals and Go. Own features end to end from technical design through release, solve complex systems architecture problems, contribute to open-source projects, and develop scalable tenant isolation and resource-sharing solutions. The role requires autonomous technical problem solving, strong Kubernetes expertise, and participation in a high-growth startup environment.

Develop and maintain ABBYY Vantage cloud-native services supporting document AI capabilities, including OCR pipelines, AI skill workflows, APIs, infrastructure, and analytics. Design, test, deploy, and monitor reliable software; participate in code reviews; improve tooling and delivery workflows; resolve production incidents; and collaborate with product, UX, ML, and engineering teams.

Develop a highly optimized, open-source AI inference framework using low-level C/C++/Rust software, GPU kernels, hardware offloads, and RDMA networking. The role focuses on Linux systems, network performance, computer architecture, scalability, benchmarking, and high-performance computing across large data centers and supercomputers.

Design, develop, and maintain scalable, highly available backend services. Collaborate with product and UX teams to build secure, reliable features, perform code reviews, troubleshoot production issues, and own features end-to-end from design through deployment.

Develop and maintain a C++ backend application supporting market risk management and regulatory requirements. Investigate software issues, identify root causes, implement fixes, and write automated tests. Work in Linux using GCC and command-line tools, while responsibly using AI-assisted development tools for design, coding, debugging, testing, and review. Collaborate independently, understand business context, and deliver clear, maintainable, reliable code.

Maintain and enhance automated market-making software while developing C++ and Python backend services for brokerage systems. Investigate production issues, debug existing code, implement reliable fixes, and write tested, maintainable software in a Linux environment. Collaborate with developers and stakeholders, use AI-assisted development tools responsibly, and take ownership of assigned work. Candidates may be junior or mid-level, with financial systems experience preferred.

Build and maintain scalable automated testing infrastructure for systems processing over one billion order events daily. Responsibilities include designing unit, integration, and acceptance test suites; developing data quality checks; monitoring test infrastructure; reporting on coverage and reliability; investigating failures; and collaborating with engineers and data scientists to improve software quality and market surveillance reliability.