Top Software Engineer Jobs in Budapest

Develop and maintain scalable full-stack software for social media products, including content libraries, campaign management, scheduling, publishing workflows, and AI-powered content creation. Responsibilities include participating in the full software development lifecycle, building backend services and storage systems, writing tested code, deploying reliable systems, collaborating across teams, and responsibly evaluating AI-assisted development output.

Build and maintain TypeScript-based AML applications and services, including customer-facing panels, Node.js backends, and client libraries. Scope and deliver features, debug distributed systems, write tests, review code, improve CI/CD tooling, and collaborate with product, QA, architecture, and DevOps teams. Work with large screening and watchlist datasets while maintaining performance, security, accuracy, and auditability. Mentor junior engineers and promote effective use of AI-assisted development tools.

Build and scale Canvas video, media, transcription, accessibility, and analytics services using TypeScript, React, and Ruby on Rails. Develop resilient AWS-based cloud services and integrate AI agentic workflows, Claude skills, autonomous development tools, and automated engineering pipelines. Collaborate with product and UX teams on intelligent educational features while maintaining testing, accessibility, CI/CD, and distributed application performance.

Develop and modernize the Market Risk platform using Java, Spring, and relational databases while supporting business-as-usual requests and production operations. Architect scalable, secure solutions; maintain and optimize applications; implement unit testing and engineering best practices; and contribute to technical strategy, code reviews, design discussions, and technology adoption. Mentor junior and mid-level engineers, collaborate with global stakeholders, and use automation and AI tools across development, validation, and deployment.

Develop and operate SaaS services, APIs, carrier integrations, dashboards, automation tools, and AI agents. Own software throughout its lifecycle, including planning, development, testing, deployment, monitoring, production support, and on-call responsibilities. Improve system reliability, performance, documentation, and maintainability while collaborating with internal teams and external partners.

Design, build, and operate TypeScript-based AML applications and services, including backend systems, client libraries, and customer-facing interfaces. Lead technical design reviews, planning, testing, incident response, monitoring, CI/CD improvements, and cross-team initiatives. Ensure performance, scalability, security, observability, and auditability while mentoring engineers, reviewing code, managing large datasets, and incorporating customer and stakeholder feedback.

Lead the design, development, and deployment of scalable AI-powered customer support automation. Build Java microservices using Kafka, contribute to TypeScript and Python systems, develop intent detection and routing pipelines, integrate LLM and AI agent solutions through AWS Bedrock, optimize platform reliability and performance, collaborate on conversational experiences, and mentor engineers.

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, develop, test, and maintain scalable, highly available backend services. Collaborate with product and UX teams to build reusable customer solutions, ensure secure and reliable platform features, review code, troubleshoot production issues, and own features from design through deployment and acceptance testing.

Develop and maintain features for PTC’s Codebeamer enterprise ALM platform across the full software development lifecycle. Design scalable solutions, write clean Java code, troubleshoot defects, contribute to automated testing and CI/CD, and collaborate with Product Management, QA, UX, and engineering teams in an Agile environment.

Build and maintain Ruby on Rails APIs for internal workflows, from stakeholder discovery and requirements refinement through design, testing, release, and evaluation. Write secure, maintainable code handling authentication, authorization, and sensitive data. Troubleshoot API issues, add regression coverage, participate in design discussions, review code, document decisions, and collaborate asynchronously in a distributed agile team.

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.

Develop production Rust code for managing, reconfiguring, and adapting cloud resources within a Kubernetes development platform. Collaborate on architecture, infrastructure, and feature design; use AI to improve delivery; and work directly with users to gather requirements and debug complex distributed environments. The role requires strong systems thinking, cloud-native infrastructure knowledge, and effective async collaboration in a remote-first startup.

Build and operate backend services for Genesys Cloud Copilot, including AI agents, tool integrations, APIs, event-driven services, evaluations, monitoring, security, and cost optimization. Own features from design through production support, lead larger technical initiatives, collaborate with product and partner teams, and mentor engineers. The role requires backend engineering, distributed systems, AWS, DevOps/SRE, and experience or interest in LLM technologies such as tool calling, RAG, evaluations, and guardrails.

Leads architecture, development, optimization, testing, and delivery of modern C++ 3D software for clinical dental applications. Owns rendering, geometry, APIs, CI/CD, and cross-language integrations while applying AI-assisted development practices. Investigates complex defects, mentors engineers, leads technical discussions, collaborates across product and manufacturing teams, and ensures compliance with medical device software quality processes.

Build and scale Nuitee’s flight infrastructure from a production product into reliable API-first platform services. Responsibilities include API design, caching volatile flight offers, modeling booking data, supporting booking changes, cancellations and refunds, integrating NDC and legacy GDS flows, and improving performance and reliability. This hands-on individual contributor role requires deep backend and API expertise, flight-domain knowledge, Python experience, and ownership in a small team.

Build and maintain ERP business management features across backend services, APIs, databases, and user interfaces. Develop reliable software, implement database models and schema changes, investigate issues, write tests, monitor releases, conduct code reviews, and communicate risks. The role requires professional software development experience and offers opportunities to grow into larger engineering responsibilities while working with technologies including Python, Django, React, PostgreSQL, AWS, and Kubernetes.

Designs and builds Notabene’s Go-based transaction platform for secure, scalable, multi-tenant crypto transfers. The role focuses on distributed systems correctness, PostgreSQL performance, cloud infrastructure, observability, auditability, and regulated-data security. The engineer owns production operations, writes technical designs, reviews code, mentors teammates, collaborates with product and compliance teams, uses AI coding agents, and participates in on-call rotations.

Design, build, maintain, and optimize scalable cloud applications for a global transportation platform. Collaborate with product and engineering teams to deliver features, ensure platform stability and security, write automated tests, resolve technical issues, document solutions, estimate effort, and provide third-level support. The role requires JavaScript and Node.js development experience, database expertise, containerized environments, and interest in AI-assisted development.

Build and maintain scalable .NET backend services, REST APIs, commerce platforms, billing systems, and payment integrations. Develop customer-facing features, modernize critical systems, support platform reliability, and contribute to technical decisions. Collaborate with engineering, QA, database, product, finance, data, and operations teams to deliver secure global payment experiences.

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.

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.

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.

Develop and maintain Python/Pytest automated tests for embedded wireless products, focusing on Bluetooth Low Energy features. Own test planning, strategy, coverage, CI execution, debugging, root cause analysis, and quality improvements. Collaborate with developers, product managers, application engineers, and global QA teams to resolve defects and communicate testing risks. The role also uses AI-assisted development tools, supports continuous integration, and validates firmware and embedded products.

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.