Senior .NET Engineer

Ciklum is looking for a Senior .NET Engineer to join our team full-time in Romania.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior .NET Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.

Client for this project is a leading global provider of audit and assurance, consulting, financial advisory, risk advisory, tax, and related services. They are launching a digital transformation project to evaluate existing technology across the tax lifecycle and determine the best future state for that technology. This will include decomposing existing assets to determine functionality, assessment of those functionalities to determine the appropriate end state and building of new technologies to replace those functionalities.

Responsibilities:

• Back-end development of new functionality
• Participating in code and architectural reviews, documenting architecture
• Communicating with stakeholders: PMs, developers, architects, QA engineers and other colleagues
• Proactive position in solution development, processes improvements
• Delivering the product roadmap and planning for the future
• Handle complex problems that might arise during solution development and provide field support with creative and rapid solutions
• Ensure that the highest coding standards are met and write highly testable, automatable and performant code over the whole SDLC
• Accelerated and Productive Development using AI Tools

Requirements:

• More than 4 years of experience in commercial software development
• Excellent knowledge of computer science and computing theory:
  • OOP, DDD, SOLID, TDD, BDD
  • Database theory (RDBMS, NoSQL)
  • Algorithms and data structure
  • Design, architectural and enterprise patterns
• Understanding of network protocols and conventions (e.g. HTTP, REST), authentication and authorization flows and practices
• Experience with NoSQL (e.g. Mongodb, DynamoDB)
• Knowledge of key-value storages (e.g. Redis, Memcached)
• Basic knowledge of containerization and orchestration (Docker, Kubernetes)
• Excellent knowledge and experience with C# and .NET
• Should possess exposure and hands on experience with AI tools preferably github copilot, and additionally exposure to Vibe coding
• Commercial experience with:
  • .NET Framework, .NET Core, ASP.NET (Core, MVC, WebAPI)
  • ORM (e.g. Entity Framework, Dapper)
  • RDBMS (especially SQL Server)
  • Messaging systems (e.g. RabbitMQ, ServiceBus)
  • Cloud providers (e.g. Azure)
  • Testing frameworks (e.g. NUnit, XUnit, MSTest)
  • Web Servers
  • Version control systems (e.g. GIT)
• Upper-intermediate English or above

Desirable:

• Experience with Search Engines (e.g. ElasticSearch, Azure Search)
• Experience with REST API development for mobile application
• Experience with integration with 3rd party solutions

Personal skills:

• Ability to relate positively to and engage with a wide range of people
• Strong self-motivation, reliable and flexible team-player. High attention to details
• Always seeking to improve processes and suggest alternative better solutions
• Be ready to embrace change, be flexible
• Ability and willingness to mentor more junior team members

What’s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
• Enjoy radical flexibility – work remotely or from an office, your choice
• Care: Medical subscription to Regina Maria, meal tickets of 16 ron net/day worked

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.

In Romania, we welcome top-tier tech talent — whether from our Bucharest office or fully remotely. Tap into deep industry knowledge, grow your career, and make an impact in an empowering environment.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

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