Top Software Engineer Jobs in Budapest

Lead design and delivery of scalable microservices for a global, real-time messaging platform. Own end-to-end feature development, improve observability and reliability, ensure security and regulatory compliance, influence technical strategy, mentor engineers, and drive platform scalability and developer productivity.

Design, develop, test and operate highly scalable cloud microservices for enterprise collaboration. Own features end-to-end, work with Node.js/TypeScript and Go, ensure compliance (PCI/HIPAA/GDPR), implement logging, metrics, CI/CD, and automated tests, and recommend new technologies.

Improve reliability, observability, and scalability of Enode's connectivity layer. Build and maintain API integrations with OEMs and energy partners, reduce incidents, enhance monitoring and alerting, drive complex projects to release, uphold code quality and testing, collaborate with product, and mentor teammates while applying AI tooling strategically.

Design, implement, test, deploy, and maintain cloud-native full‑stack applications. Collaborate cross-functionally, follow software engineering best practices, use event-driven patterns, leverage AWS, participate in code reviews, troubleshoot issues, and improve CI/CD workflows.

Lead design and development of scalable, user-friendly iOS applications for clinical and customer use. Define technical architecture, implement and optimize features, build modular frameworks, ensure high quality via automated tests, apply Apple design and accessibility standards, and collaborate with cross-functional teams in agile processes.

Design, implement, test, and maintain cloud-first web applications. Build secure, maintainable code using event-driven architecture and cloud services (AWS/Azure). Collaborate with cross-functional teams, mentor junior engineers, and support CI/CD and PWA development.

The Lead Software Engineer will design and develop Java microservices for network management, ensuring scalability and reliability within a telco environment. Responsibilities include backend development, system integration, and mentoring team members.

Design, develop, and deploy AI-driven applications by integrating ML models and APIs into scalable backend systems. Collaborate with cross-functional teams, contribute to architecture, build CI/CD and containerized environments, use cloud platforms, ensure code quality, monitor production AI features, and stay current on ML frameworks.

Design, build, and harden Chromium-based browser components in C++ to power Menlo's AI/agent initiatives; apply networking and HTTP security expertise; integrate AI agents and MCP servers; build tooling in Python or Rust; deploy and operate cloud infrastructure (AWS/GCP, Kubernetes, Terraform); debug and optimize performance-critical systems; collaborate cross-functionally.

Design, build, and operate Threat Protection and ShadowAI services: scalable distributed systems and APIs that detect and control risky web and generative AI usage. Own features end-to-end, maintain availability and latency SLOs, write tests, perform code reviews, use AI-assisted tools, and collaborate with cross-functional teams to improve detection accuracy and production reliability.

Design and own test strategy and automation frameworks for a multi-cluster cloud control plane. Build API-first REST test suites, automate end-to-end data application migrations (Spark, Airflow, data warehouses), validate Kubernetes workloads/CRDs/Helm, and integrate cross-team services. Provide technical leadership, mentor engineers, and ensure testability across CI/CD pipelines and distributed systems.

Build and own backend integrations connecting Voxie's SMS platform to CRMs, POS, marketing tools, and messaging providers. Design scalable, testable serverless systems on AWS, handle high-throughput messaging, implement reliable API/webhook/SFTP/batch pipelines, and collaborate with sales, partners, and customers to scope and deliver integrations.

Lead and own platform architecture across Infrahub ecosystem, implement high-impact architectural improvements, reduce technical debt, champion AI-first engineering, provide hands-on technical leadership, mentor engineers, and collaborate with product and leadership to ensure scalable, extensible systems.

Develop cloud-native production systems that process large data volumes. Engage in backend development with Rust and frontend with Angular. Collaborate on product development.

As a Senior Software Engineer, you'll design and build scalable market data systems, improve API architecture, and enhance overall system performance, contributing to Alpaca's infrastructure for trading financial assets.

Build and maintain core post-trade clearing systems and securities-finance infrastructure. Own projects end-to-end, design reliable distributed services and RESTful APIs, integrate new clearing partners, participate in on-call rotation, and improve systems to enable new product offerings.

Build and own end-to-end features across Sona’s platform using AI-assisted development. Direct and correct agent-produced code, work cross-functionally, engage customers in discovery and workshops, and contribute across scheduling, payroll, HR, and mobile domains.

Design, implement, test, and document software for logistics systems. Responsibilities include maintaining software, implementing new features, and guiding junior members.

Design, implement, test, and operate the Kimchi AI inference and agent platforms end-to-end. Build scalable inference APIs, distributed datastores, billing/metering, harnesses, and secure agent fleets. Diagnose performance issues, optimize latency and databases, ensure observability and CI/CD, and collaborate with product and users to ship features rapidly.

Design, implement, and maintain desktop applications, cloud services, and automation testing. Lead architecture and feature implementation, perform code reviews, write unit/integration tests, support CI/CD and DevOps, and collaborate within Agile/Lean Scrum teams to improve product quality.

Design, build, operate, and support resilient distributed platform services. Write maintainable code, troubleshoot production issues, improve reliability and observability, and assist internal teams. Participate in on-call rotations and collaborate on platform evolution.

Lead design and delivery of scalable, secure cloud-native backend services, shape platform architecture, mentor engineers, contribute hands-on (Go/C++ backends, React frontends), establish engineering standards, improve observability and reliability, and collaborate with product and architecture teams to align technical investments.

As a Senior Software Engineer, you will develop secure, scalable medical imaging platforms, architect distributed systems, and work with AI diagnostic tools.

The Principal Software Engineer leads the design and implementation of telephony systems, ensuring scalability and performance. Responsibilities include providing technical leadership, mentoring engineers, and managing complex software projects.

Design, implement, and scale robust Rust services and libraries for trading, payments, and crypto. Build low-latency distributed systems using RPC, Kafka, and event-driven patterns. Write testable, high-performance asynchronous network code, debug across OS/network/application stacks, own systems end-to-end, and mentor other engineers while collaborating with product teams.