Top Software Engineer Jobs in Bucharest

Build and maintain automated test frameworks for an AI Gateway and cloud integrations. Develop end-to-end, API, integration, regression, performance, load, and resilience tests across multiple AI providers. Automate authentication scenarios, validate streaming and model API behavior, create mocks and test environments, integrate tests into CI/CD, and investigate distributed-system defects using logs, metrics, traces, and source code.

Ipsos is a global research and insights organization serving major companies across numerous markets. The provided description introduces the company but does not include specific responsibilities, qualifications, technologies, compensation, or work-location details for the Software Engineer role.

Lead the design and development of scalable Java microservices and Angular interfaces. Collaborate across teams, optimize performance and SQL workflows, maintain code quality, support test automation and CI/CD, and contribute to cloud-native deployments. Mentor junior developers, explore modern technologies, and coordinate with analysts, architects, and infrastructure teams in an agile, cross-border environment.

Develop and deliver full-stack software solutions using Java Spring and Angular. Responsibilities include technical design, coding, unit testing, data modeling, debugging, performance optimization, documentation, defect investigation, and collaboration with product, QA, DevOps, and international engineering teams. The role involves cloud-native development, microservices, secure software, continuous integration, and Agile practices in a global French- and English-speaking environment.

Develop and integrate GIS software in an Agile team, contribute to architecture, maintain development and CI/DevOps environments, troubleshoot anomalies, and support software throughout its lifecycle. Provide L1-L3 GIS support, manage GIS deployments, databases, licensing, and infrastructure across Windows and Linux. Collaborate with product teams using SAFe and travel to France as project needs require.

Build and operate foundational backend systems powering a globally distributed ecommerce search platform at massive scale. Responsibilities include designing high-traffic, highly available services, improving performance and reliability, managing deployment automation, capacity planning, observability, and production operations. The role involves working across the technology stack and collaborating within an ownership-driven engineering team.

Build and operate the internal developer platform used by AI researchers and ML engineers. Responsibilities include secure development environments, container image builds, CI/CD tooling, training instrumentation, self-service debugging tools, automation, infrastructure as code, observability, and production troubleshooting. The role also includes establishing infrastructure best practices, collaborating with research teams, and participating in a compensated 24/7 on-call rotation.

Develop and own software solutions using PHP and/or Python with AI agents, agentic workflows, and coding harnesses. Evaluate, validate, debug, and improve AI-generated code while maintaining strong design and engineering standards. The role requires independent technical decision-making, accountability, and potentially mentoring or technical leadership. Cybersecurity experience is beneficial but not required.

Build and operate a governed AWS lakehouse data platform ingesting Kafka events into Apache Iceberg. Responsibilities include data contracts, schema evolution, privacy controls, access management, query services, migrations, performance and cost evaluation, and curated datasets for BI and AI analytics. The role requires production software engineering, testing, SQL, data pipeline, and data modeling skills, with preferred experience in lakehouses, Kafka, Avro, personal data, JVM technologies, Terraform, and AWS services.

Develop and lead implementation of embedded cryptographic libraries and security countermeasures for ARM Cortex-M and RISC-V platforms. Responsibilities include implementing cryptographic algorithms, including post-quantum cryptography; designing protections against side-channel and fault-injection attacks; collaborating with architects, firmware, testing, and evaluation teams; guiding technical direction; supporting product certification and security evaluations; and ensuring secure software integration.

Develop and implement cryptographic algorithms and embedded security software for ARM Cortex-M and RISC-V platforms. Design countermeasures against side-channel and fault-injection attacks, collaborate with architects, firmware, OS, testing, and certification teams, and lead technical topics through design, implementation, reviews, and planning. Support secure product integration and security evaluations across automotive, payment, identification, mobile, industrial, and IoT markets.

Develop and implement secure embedded cryptographic libraries, including traditional and post-quantum algorithms, for ARM Cortex-M and RISC-V platforms. Design countermeasures against side-channel and fault-injection attacks, perform code reviews, contribute to architecture and planning, integrate with firmware and operating-system teams, support testing, debugging, certification, and security evaluations.

Build and maintain Java software for large-scale electricity market platforms supporting trading, settlement, balancing, and capacity auctions. Own the full software lifecycle from architecture through deployment and support. Optimize distributed systems, transactions, caching, messaging, REST APIs, databases, concurrency, and JVM performance. Collaborate with domain experts to implement market rules and regulatory requirements while contributing to code quality, CI/CD, security, and technical standards.

Lead front-end development for partner-facing financial web products, including embeddable onboarding modules, partner dashboards, and self-service workflows. Build complex multi-step forms and data-heavy interfaces with React and TypeScript, contribute to Node.js server layers, collaborate on API contracts, and work closely with product, design, and backend teams. Own features from design handoff through production release while maintaining multiple codebases and upgrading business-account APIs.

Own an Android IoT application end to end, including Kotlin and Firebase development, architecture, releases, debugging, production issue resolution, code quality, testing, documentation, and operational stability. Collaborate with product, design, backend, QA, and support teams while contributing to incident management, fleet operations, firmware and APK rollouts, and continuous improvement.

Design, develop, test, deploy, support, and improve enterprise UiPath automation solutions. Translate business requirements into scalable automations, integrate systems through APIs and databases, expand solutions with Microsoft Power Platform and AI capabilities, and ensure robust logging, testing, exception handling, security, and maintainability. Collaborate with stakeholders and technical teams, contribute to solution design and code reviews, mentor colleagues, and drive continuous improvement.

Develop and improve high-performance Angular front-end applications supporting bank cash transactions. Responsibilities include researching and tailoring solutions, writing high-quality code, refactoring, troubleshooting, performance testing, collaborating with technical and client stakeholders, providing consultancy, and mentoring colleagues. The role requires strong JavaScript/TypeScript, Angular, web standards, REST, agile, Git, testing, and German and English communication skills.

Owns end-to-end automated testing for software features, developing and maintaining tests across UI, API, contract, integration, and E2E layers. Responsibilities include debugging failures, improving test reliability, analyzing defects, supporting releases and on-call activities, contributing to CI/CD and quality metrics, collaborating with cross-functional teams, mentoring junior testers, and evaluating AI-powered testing tools.

Develop low-level software for Arista’s EOS networking operating system on the Platform team. Work closely with hardware and programming chips while building reliable, multithreaded embedded systems using state-oriented, Linux-based architecture. Responsibilities involve software architecture, algorithms, system programming, and implementation across ASIC, FPGA, physical, virtual, and containerized platforms.

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.

Design, develop, test, deploy, and support scalable Node.js and TypeScript backend services using microservices architecture. Build cloud-native solutions on AWS and Azure, maintain mobile infrastructure, automate deployments, and manage GitLab CI/CD pipelines. Provide Level 3 production support, collaborate on product roadmaps and release timelines, document systems, evaluate emerging technologies, and ensure software quality, security, scalability, and operational excellence.

Build and maintain backend services and APIs for Masabi’s cloud-native Justride fare-payment platform. Design scalable distributed systems, integrations, and event-driven services; write tested, maintainable code; collaborate across engineering, testing, and product teams; and improve service performance, reliability, and observability. The role involves Java or Kotlin, REST APIs, AWS, Kafka, Terraform, and production ownership in a fully remote Romania-based contract position.

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.