Top Software Engineer Jobs in Romania

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Design, build, and operate high-scale backend services in Go supporting authentication, authorization, billing, audit trails, pricing, notifications, feature flags, and savings reporting. Own features from design through production rollout, debug security- and money-critical issues, optimize databases and high-load systems, and collaborate on product direction. The role requires Kubernetes experience, strong API and systems engineering skills, complex project ownership, and participation in on-call rotations where needed.

Design, build, and operate internal platform capabilities including CI/CD pipelines, GitOps systems, observability tooling, local development environments, and cloud-native infrastructure. Debug complex production issues across Kubernetes and cloud systems, improve developer workflows, contribute to platform strategy, and participate in on-call rotations. The role requires strong Go and systems engineering skills, end-to-end project ownership, performance optimization, and familiarity with AI coding agents.

Build and scale backend systems for AI-native construction procurement software. Own data models, GraphQL APIs, distributed processing semantics, integrations with construction ERPs, authorization, approvals, and transactional business workflows. Develop in Go with Postgres and AWS, while contributing to AI-driven document extraction, optimization, observability, and complex integrations. Collaborate in a fast-moving startup environment with evolving product requirements and strong ownership expectations.

Build core components of a diagnostic and personalization platform: backend data pipelines, frontends, services for genomic data ingestion, ML model integration, APIs, and cloud infrastructure. Collaborate with product and ML teams, iterate on prototypes and MVPs, and make architectural decisions supporting scalability and reliability.

Design and build the on-prem software stack for ModelVault appliances: containerized inference engines, model integration (LLMs/vision), deployment tooling, CLIs/GUI/APIs, OS and GPU setup, remote updates, telemetry, and collaborate with customers and founding team to iterate and scale the engineering org.

Develop and maintain high-performance Modern C++ components for a ROS2-based embedded vision and traffic management platform. Integrate sensors and distributed system interfaces, contribute to architecture, write unit and integration tests, optimize runtime performance, debug Linux applications, maintain containerized build environments, and provide technical guidance to junior developers.

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 reliable frontend banking applications using TypeScript or JavaScript and React. Design maintainable architectures, collaborate with financial experts, improve application quality, support users, and contribute to testing, builds, deployments, and technical decisions. Participate in Agile delivery, knowledge sharing, pair programming, and team development while optimizing client-facing banking tools, web services, and frontend core components.

Design and deliver internal systems, Go services, APIs, data models, dashboards, visualizations, and LLM-powered workflow features. The role includes writing specifications, estimating work, code reviews, testing, documentation, security, performance, accessibility, and collaboration with nontechnical stakeholders. The engineer will handle sensitive people data, mentor colleagues, and improve team practices in a globally distributed environment.

Develop and evolve C++ APIs, tools, and real-time simulation middleware for cloth, hair, and rigid objects in AAA games. Research new simulation features, including machine learning applications; optimize performance; integrate SDKs with game development pipelines; troubleshoot bugs; document systems; and collaborate with global teams in an Agile environment.

Design, develop, and maintain high-quality web applications using CodeIgniter and PHP. Collaborate with cross-functional teams to define and ship features, ensure application performance and quality, identify and fix bugs, and maintain code quality and automation.

Design and build APIs, full-stack applications, and accessible user interfaces using C#/ASP.NET Core and Angular. Collaborate with product, UX, and R&D teams; write unit, integration, and end-to-end tests; conduct code reviews; continuously deploy applications; and improve frameworks, libraries, testing practices, and CI/CD processes.

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.

Build and operate production AI infrastructure powering intelligent agents at scale. Develop high-performance Rust services for model inference, orchestration, and execution; design scalable distributed systems; establish MLOps, observability, guardrails, and failure recovery; and optimize latency, throughput, reliability, and cost. Partner with agent systems and infrastructure teams to turn prototypes into hardened services serving millions of users.

Lead backend software engineering for LSEG Workspace, architecting and implementing scalable cloud-native services using Node.js, C#, Azure, and AWS. Responsibilities include system design, development, infrastructure support, CI/CD automation, code reviews, performance and security improvements, and collaboration with global product and engineering teams. The role also involves solving complex operational problems, applying DevOps and observability practices, and providing technical leadership.

Develop and support scalable MES applications, reporting solutions, CI/CD pipelines, and event-driven integrations for global manufacturing operations. The role involves Java and SQL development, troubleshooting integrated systems, root-cause analysis, documentation, process improvement, and collaboration with engineering, DevOps, and manufacturing teams.

Leads software engineering initiatives on Google Cloud Platform, combining hands-on architecture, design, coding, and code review with team leadership. Owns complex client engagements, manages delivery timelines and resources, establishes security best practices, and provides technical thought leadership. Develops and mentors a team of approximately eight developers through coaching, performance management, skill development, and change leadership while maintaining strong client relationships.

Analyze anti-bot and bot-mitigation systems, identify how websites detect and block scraping activity, and develop repeatable testing and bypass approaches. Build a greenfield agentic environment for evaluating anti-bot behavior, contribute to backend systems at scale, investigate complex incidents, and communicate findings clearly. The role requires deep web protocol knowledge, strong Node.js, TypeScript, and Python skills, scientific problem-solving, AI coding agent proficiency, and independent execution in a remote-first team.

As a Senior Software Engineer, you will lead architecture decisions, mentor engineers, and build scalable cloud services while collaborating closely with product and design teams.

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.

Staff Software Engineer responsible for designing, building, and operating distributed market data systems. The role focuses on real-time blockchain data ingestion, streaming, normalization, storage, APIs, reliability, data correctness, observability, incident recovery, and production support. The engineer will lead technical decisions, mentor teammates, translate ambiguous requirements into designs, and use AI-assisted development throughout the software lifecycle.

Develop and maintain automated testing frameworks and scripts for cloud-based software, covering functional, integration, regression, performance, and security testing. Integrate automated tests into CI/CD pipelines, collaborate with developers and QA leadership, diagnose defects, support test environments and data, and advocate for software testability, reliability, scalability, and quality throughout development.

Design, build, operate, and improve scalable services for an affiliate marketing billing and payments platform. Responsibilities include developing clean and secure code, designing AWS-based microservices and event-driven systems, maintaining CI/CD pipelines, troubleshooting production issues, improving testing and engineering quality, participating in agile practices, and mentoring engineers. The role also contributes to technical direction, AI adoption, system reliability, and cross-functional collaboration.

Develop and maintain Java software for Garmin’s Marine Cloud platform, including complex Spring Boot microservices and cloud-native applications. Responsibilities include designing new functionality, applying coding standards, using configuration and build tools, participating in code reviews, testing, debugging, and solving software problems. The role is fully office-based in Cluj-Napoca, five days per week.