{"id":3868065,"url":"https://alion.io/job/hitachi-energy-senior-fullstack-developer","title":"Senior Fullstack Developer","company":{"id":92953,"name":"Hitachi Energy","domain":"hitachienergy.com","url":"https://alion.io/company/hitachienergy","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kraków, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Apache Kafka","optional":false},{"name":"C++","optional":false},{"name":"DNP3","optional":false},{"name":"IEC 61850","optional":false},{"name":"OPC UA","optional":false},{"name":"Azure","optional":true},{"name":"Azure DevOps","optional":true},{"name":"C#","optional":true},{"name":"Docker","optional":true},{"name":"Git","optional":true},{"name":"Helm","optional":true},{"name":"Kubernetes","optional":true},{"name":"Rest API","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-11-06T08:36:16Z","employer_posted_date":null,"last_verified_at":"2026-11-06T08:36:16Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"The opportunity\nWe are seeking an experienced R&D Software Developer focused on .NET application development for performance‑critical systems to join our technology organization.\n\nIn this role, you will develop, high-performance, and secure software systems built with .NET technology, with a strong focus on real-time behavior, reliability, and long product lifecycle support.\n\nAs an R&D Software Developer within the Grid Automation domain, you will help shape innovative solutions for the power systems of tomorrow.\nYou will work closely with global technology teams that bring niche expertise and cutting-edge capabilities. Your work will directly support the development of real-time software used in critical infrastructure worldwide software designed for long-term reliability, high efficiency, and uncompromising security.\n\nWe value diverse experience and fresh perspectives. Even if you do not meet every listed requirement, we encourage you to apply. We are excited to learn more about you and the unique strengths you can bring to our team.\n\nMore about us\n\nWe pride ourselves on offering a holistic range of competitive benefits to support your financial, physical and mental wellbeing and personal development. We want you to truly thrive with us, in work and out. \nWe can provide more information during the recruitment process.\nOur benefits offering for this role generally includes:\nPrivate medical care and life insurance\nAccess to fitness and wellness programs\nAccess to benefits platform with discounts and perks\nEmployee Capital Plans (PPK)\nEquipment for working from home or allowances for setting up a workplace at home\nSpectacles and contact lenses allowance\nCompany events and team‑building activities\nPsychological support program\nFree parking available\n\nYou will receive more specific information during the recruitment process.Zakres obowiązków\nHow you’ll make an impact:\nAchieve business goals through designing and developing code in the .NET technologies. \nDesign, develop and maintain microservices architecture for back-end. \nParticipate in code review. \nTroubleshooting and bug fixing for all issues discovered during E2E testing \nShare your experience and skills with other team members. \nProposing and elaborating with other team members on how to improve code quality, performance and stability. \nWork closely with Product Owner, QA engineers to ensure successful project delivery \nWymagania\nYour Background:\n\nUniversity degree in computer science, engineering, or a related technical field. \n8+ years of experience in senior technical roles. \nAdvanced proficiency in .NET technology stack: C#, REST Web Services and .NET Core. \nAssure high code quality through unit tests and adherence to software development best practices like Clean Code, SOLID, and code reviews. \nHands on knowledge in following areas: \n Git version control system \nBuild management - Azure DevOps Pipelines, MSBuild, \nDocker / podman \nKubernetes + Helm \nSQL database knowledge \n Demonstrate understanding of the concepts API Development and Consumption. \nPractical knowledge of Kafka and C++ development in plus. \nDemonstrated experience with performance profiling, optimization, and low-latency systems. \nUnderstanding of software architecture principles and secure, scalable system design. \nExcellent problem-solving skills and the ability to tackle complex technical challenges. \nGood understanding of unit and integration testing techniques and testing frameworks. \nKnowledge of non-functional requirements (performance, scalability, security). \nPractical experience developing systems for power grid management and monitoring having familiarity with WAMS/WAMPAC, PMU data, and protection and control applications. \nUnderstanding of power grid operations and applicable standards. \nExperience with industrial automation systems (SCADA, IED, RTU) in plus. \nExperience with industrial protocols and standards (IEC 61850, IEC-60870-5-104, DNP3, OPC UA, IEEE C37.118) in plus. \nPractical experience working directly with power grid industry clients and exposure to system integration, simulators, or lab environments. \nProven ability to translate customer requirements into clear technical designs. \nSolid understanding of numerical methods, signal processing, and control fundamentals and ability to work with high‑frequency, time‑aligned time‑series data \nGood understanding of power system dynamics and the stability challenges introduced by high penetration of renewables \nEffective team player with strong communication skills and willingness to learn. \nExcellent command of English (written and spoken). \n Tech stack\nR\n.NET\nSecurity\nMicroservices architecture\nBackend\nTesting\nQA Engineer\nDegree\nC#\nREST API\nWeb Services\n.NET Core\nClean Code\nGit\nAzure DevOps\nMSBuild\nDocker\nKubernetes\nHelm\nSQL\nAPI\nKafka\nC++\nIntegration test\nSCADA\nProtocols\nIEC\nIEEE\nSystem integration\nCommunication 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