Top Software Engineer Jobs in Hungary

Design and build durable, distributed data-streaming infrastructure that decouples process data from Camunda’s live execution engine. Develop customer-facing integrations such as Kafka connectivity, support analytics data consumption at scale, and make architecture decisions around consistency, durability, and storage. Participate in production support and on-call rotations while collaborating with Product, Data Layer, Distributed Systems, QA, SRE, and Support teams. Lead ambiguous, cross-functional engineering initiatives from design through delivery.

Build and maintain Camunda 8 backend data-layer services spanning relational databases and Elasticsearch/OpenSearch. Design scalable storage, query, retention, and streaming systems; improve performance, indexing, and production tooling. Lead engineering initiatives from solution design through delivery, collaborate across teams, provide L3 support, and participate in on-call rotations. Investigate production data issues and contribute to schema evolution, workflow automation, and CI improvements.

Build and maintain AI-powered spam and scam detection infrastructure: design, implement, deploy, monitor distributed pipelines, support data science workflows, handle production incidents, and improve system resilience and scalability.

Build and own end-to-end features across backend and frontend: design backend services and data models (Python/Django), implement RESTful APIs, create reusable frontend components (TypeScript/React), write tests, participate in code reviews, maintain production reliability and security, and collaborate with product and design.

Build and maintain hardened Ubuntu-based container images and the automated CI/CD pipelines to build, test, scan, sign, publish, and retire them. Integrate upstream open-source projects, ensure security and cloud-native compatibility, collaborate with cross-functional teams, document and share knowledge, mentor colleagues, and contribute to hiring. Work in a distributed agile environment with occasional travel.

As a Backend Software Engineer, you'll design scalable backend systems, optimize database performance, and collaborate with front-end and DevOps teams.

Design, build, and own DevOps and infrastructure for greenfield internal tools and backend services. Implement CI/CD, IaC, containerization, observability, automated deployments, and secure networking while collaborating with backend and frontend teams and internal sysadmins.

As a Senior Java Software Engineer, you will enhance software systems used in financial strategies, focusing on performance, scalability, and reliability.

Contribute to Juju's development, collaborate with teams on distributed systems, debug issues, and enhance cloud automation features.

Lead implementations and integrations of CMT backend customer solutions. Design, develop, test, deploy, and operate secure, scalable integrations; collaborate with Sales, Engineers, and Solution Architects; participate in architecture reviews, sprint planning, on-call rotation, and release/deployment pipeline improvements. Conduct remote and on-site due diligence with clients and support production systems in regulated environments.

Software Engineers at QuantCo will design and develop scalable solutions, integrate models into client businesses, and improve products based on client feedback.

As an Ubuntu Core Software Engineer, you will design and implement features for the embedded Linux operating system, maintain boot mechanisms, debug system-level issues, and collaborate with a global team.

Design and develop scalable C#/.NET applications, REST APIs, Angular features, and cloud services for regulated clinical-trial technology. Optimize SQL Server performance, implement automated testing and CI/CD, troubleshoot production issues, contribute to architecture, document solutions, collaborate with Product, QA, and DevOps, and mentor team members while providing technical leadership.

The Associate Software Engineer will develop backend components, collaborate with frontend developers, maintain secure services, and participate in team discussions while learning from experienced colleagues.

The role involves designing authentication flows for AI agents, building secure token systems, and creating high-performance server-side components while collaborating with frontend teams and improving system performance.

Design and implement backend trading services, own features end-to-end (schema, API, tests, UI integration), contribute to real-time infrastructure and client-facing APIs, and write integration tests against real dependencies.

Full-stack Developers at QuantCo build user interfaces for machine learning solutions, collaborating with data scientists and engineers to deliver actionable products.

Staff Software Engineer responsible for leading architectural evolution across a distributed rendering platform, contributing to core backend systems, and improving performance, reliability, scalability, testing, and delivery practices. The role includes mentoring engineers through pairing and design reviews, unblocking teams, shaping technical strategy, improving CI/CD and tooling, and aligning engineering investments with product and business goals.

Build and maintain integrations for North's agentic platform, own the end-to-end integration pipeline, create evals and tests to ensure reliability, tune tool descriptions, and help other engineers add and maintain integrations while using AI responsibly to improve performance and quality.

Design, build, ship, and own high-scale, user-facing product features across frontend, backend, and data systems. Define problems, scope and prioritize work, collaborate with Product, monitor production usage, debug incidents, improve reliability, review code, and mentor engineers. The role requires strong backend expertise alongside React proficiency and ownership from product discovery through long-term maintenance.

Build and ship production AI agents that help mobile app developers manage subscriptions and paywalls. Own agent orchestration, tool execution, context management, evaluation, observability, permissions, and human-in-the-loop controls. Develop reliable, secure, user-facing backend systems, scope projects independently, monitor adoption, improve features after launch, participate in architecture and incident response, and mentor engineers.

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 Software Engineer will develop backend systems using Rust, manage multimodal data, and improve data infrastructure with a focus on performance and design ownership.

Own and resolve production customer issues end-to-end: debug integrations, browser JS, agents and prompts, and database issues. Communicate directly with customers, build automation and runbooks to prevent recurrence, surface recurring patterns to Product, and raise team capability through tools and documentation.

Canonical seeks open-source enthusiasts to optimize Ubuntu for new silicon technologies, collaborating with teams and customers to enhance software quality and performance across various platforms.