A back-end programmer with extensive experience in supporting post-development lifecycle stages. This experience can be leveraged to make informed decisions during software development, thereby reducing the risk and cost of maintaining released code.I derive satisfaction from completing difficult tasks. I am eager to share knowledge. I value reliability, precision and robustness. I am not afraid to interact with clients being aware of delicate business aspects. If necessary, I do not hesitate to seek help or take on various roles. I am committed to building good relationships with the team and its environment based on professional domain knowledge.I have many years of experience in the development and maintenance of back-end systems, initially starting with Windows systems and, for a long time now, Linux, with episodes of embedded systems. I am proficient in technologies that lack a Garbage Collector. Among my key achievements, I include the ability to build solutions involving multithreading and concurrency, including the elimination of races and leaks.I have a grounds-up understanding of computer systems and networks that has been strengthened through both academic learning and hands-on experience. My experience includes configuring and diagnosing basic IP network mechanisms such as routing, firewalls, NAT, forwarding, load balancing, and high availability (HaProxy), reverse proxying, VPNs, VRRP (keepalived), SSL (let's encrypt), ciphers.I've experience with development work in environments like C++ Linux/GCC, Windows/MSVC, C# (.NET Core), x86 using STL and boost, prototyping, scripting, ad-hoc, and automation using bash and Python. Due to my operational experience, I pay attention to covering key aspects with unit tests and supporting post-deployment diagnostics when building solutions. I am proficient with version control systems GIT, including overlays (Gerrit and Gitlab).In recent years, I have particularly focused on the area of distribution, integration, and maintenance of solutions using docker containers.In the domain of databases, I possess particularly extensive knowledge of the distributed NoSQL database Cassandra. I work daily with solutions integrating MSSQL and also MYSQL (RDS) and previously PostgreSQL.Lately, I have been gaining experience in cloud technologies, particularly AWS (EKS, EC2), related to integration work, supported by the AWS Cloud Practitioner certification.