Top Software Engineer Jobs in Budapest

Develop, test, deploy, and maintain full-stack SaaS software. Integrate LLM APIs and external services, troubleshoot and improve existing systems, collaborate with product and design, and produce technical documentation.

As a Software Engineer II, you will collaborate on back office processes, create applications for operations and finance, own key initiatives, and troubleshoot production issues.

As a Backend Engineer, you will build and maintain scalable backend systems, work on significant development tasks, and collaborate with teams to enhance the Wise platform while ensuring code quality and stability.

Build end-to-end full-stack AI features on a Ruby on Rails backend and React frontend, design and run experiments (A/B tests and AI evaluations), implement AI infrastructure for reliable LLM inference, and iterate quickly to scale production-ready LLM-powered products.

The Frameworks Software Engineer will build complex backend solutions, maintain code quality, architect abstractions, and collaborate with engineering and product teams.

As a Staff Software Engineer, you will enhance replication support for Cloudera Data Platform, mentor junior engineers, and build robust replication systems.

Lead Site Reliability/DevOps engineer responsible for designing, building, and scaling AWS cloud infrastructure, implementing IaC and CI/CD, managing Kubernetes/EKS, improving availability and monitoring (Prometheus), mentoring team members, troubleshooting production issues, and developing automation and tooling in Go/Python/Rust/Bash.

Develop and maintain Arista's EOS networking software: write design and functional specs, implement C/C++ features, create automated tests, debug issues, collaborate with customers and test teams, and mentor junior engineers.

Design, implement, and own platform-level networking features close to hardware. Develop and debug C/C++ (and Python) code on Linux for ASIC/FPGA/Network Processor datapaths, collaborate on architecture, test and document features, and support field/customer integration.

Design, build, and operate scalable, secure cloud-native messaging and social integrations. Implement message routing, delivery, tracking, analytics, observability, automated tests, and CI/CD. Collaborate with product, security, and operations, participate in on-call rotations, drive reliability and performance improvements, and influence architectural direction while using AI-assisted engineering tools responsibly.

Build secure, serverless microservices and AI-powered features using TypeScript, Node.js, React and AWS. Own stories end-to-end, mentor junior engineers, design LLM integrations and agentic workflows, participate in code reviews, testing, CI/CD, and architectural discussions.

Lead design and implementation of scalable backend systems for the Mitigation Platform. Collaborate across teams, balance short-term needs with long-term architecture, mentor engineers, drive technical strategy, and document platform capabilities to enable automation and servicing processes.

The Senior Python Software Engineer will develop software for large-scale quantitative research operations, focusing on building scalable platforms and coding in Python and Linux, with optional experience in C++ and machine learning.

Design and develop proprietary trading tools. Collaborate with teams, optimize performance, mentor junior engineers, and troubleshoot issues.

The role involves designing and implementing cloud-native Java applications, conducting code reviews, mentoring juniors, and collaborating with teams for project delivery.

The Software Engineer will design, develop, and maintain backend APIs and oversee the full backend API landscape while collaborating with cross-functional teams on product strategy.

This role involves data collection for model training, maintaining cloud infrastructure, collaborating with scientists on data quality and cost, and developing an AI dataset roadmap.

The AI Software Developer will create AI-driven applications, collaborate with teams, analyze requirements, and design scalable products to solve real-world problems.

Join the Fraud Handling team to automate fraud investigations, improve tooling, and optimize workflows, focusing on customer experience.

Develop, maintain, and support the Tulip OS for embedded hardware, collaborating with product management and technical teams to enhance product performance and features.

Design, build, and maintain scalable data infrastructure and ETL/ELT pipelines (Snowflake, dbt, Airflow). Develop backend APIs and cloud-native services on AWS, collaborate with data scientists and engineers, implement resilient distributed systems, and support the full software lifecycle.

As a FullStack Developer, you will design and develop web applications, contributing to both frontend and backend components while ensuring performance and usability.

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 deliver medium/high-complexity features for advanced visualization services. Write production-quality Java code, create automated tests, participate in Agile delivery, document quality artifacts, debug performance issues, and collaborate with product owners and architects across a global team.

Design, implement, and maintain cloud connectors integrating Cloudera's platform with AWS, Azure, GCP. Build scalable data ingestion and synchronization code, lead architecture and design, mentor engineers, perform code reviews, troubleshoot production issues, and document APIs and designs.