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Laurentiu
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Laurentiu

Bucuresti, Romania --:--:--

Laurentiu is a Senior Software Engineer with over 20 years of professional experience. His strongest stacks are .NET, and C# with extensive knowledge using Restful APIs, Python, and Razor. Laurentiu has worked in various domains including, but not limited to: Telecommunications, Data Security, Cybersecurity, AI, Image & Video Processing, and Automating financial/HR/Sales/Logistics processes of a company. He has been a Senior Developer for over years 5 years with experience in leading, training, and developing teams of up to 7 members. He is strongest with Defect Tracking management, Test Case creation, and Test progress documentation. Along with software testing, he has been working with Agile methodologies for over 4 years. Laurentiu is fluent in English and has been working primarily with US-based companies where English communication was the standard.

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Skills
Years
1
2
3
4
5
6
7
8
9
10+
Docker
SQL
Git
ASP.NET Web API
Backend Development
.NET
Design Patterns
C
Microservices
SQL Server
Razor
ASP.NET MVC
C++
Clear Case
Azure
Microsoft Azure Cloud
Unix
REST API
C#
VxWorks
Node.js
JavaScript
Linux
Cryptography
Tornado
Entity Framework
Python
NUnit
SOLID Design Principles
RTOS
Typescript
Moq
Unit Testing
Jira
DirectX
Perl
Mantis
Pentium II
Bash
Clarify
WCF
JSON
IEEE
XUnit
TDD
MSTest
Developer Personality

Independent

Collaborative

Trailblazer

Conservative

Generalist

Specialist

Planner

Doer

Idealist

Pragmatist

Abstraction

Control

100
50
0
50
100
Feature Experience

Data Security & Data Authenticity

Resiliency & Availability

Performance & Scalability

Microservices

MODERATE
EXTENSIVE
EXPERT
Cultural Experience

Agile

Cybersecurity

Telecommunication

e-commerce

MODERATE
EXTENSIVE
EXPERT
Portfolio

Atos IT Solutions

Senior .NET Engineer

Work Experience : 2021-2022

Backend Software Developer for AIsaac Cybersecurity Solution with the mission to make the Event Collector Service more efficient within the AIsaac Solution Backend. Tasked with speeding up the set-up process of simulating high-density threats.

  • Slashed the set-up process from 1 week to just 1 hour by employing C# to design a highly efficient and customizable software solution to allow programming the number of security events per second.
  • Increased the number of simultaneous events handled by the cybersecurity solution by 20% by increasing the efficiency of the Event Collector module by designing a scalable solution in the context of continuous data input by automatically scaling up & down the number of services based on cache load.

Skills: C# / .Net, MS SQL, Entity Framework, REST, WCF, Test-Driven Development (NUnit, Xunit, MSTest), Microservices, Azure.

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Chara ERP Syntesio

Senior .Net Developer

Work Experience : 2021

Backend Engineer of an ERP Solution rewriting in .NET the Acquisitions and Timekeeping modules of the Backed Software. Tasked with reducing acquisition time and increasing the sell-through rate.

  • Reduced the time spent on acquisitions by 20 man-days a month for a particular company with ~ 10000 selling items, by designing the server side of the “Acquisitions” module, by implementing it as a REST API serving the WEB & mobile user interfaces.
  • Increased the sell-through rate by 20% by designing a custom-tailored solution to avoid inventory getting out of stock, by putting together insights from the database raising an alarm 10 days before a piece of inventory must be ordered so that it won’t get out of stock.

Skills: C# / .NET, MS SQL, Entity Framework, REST API, JSON, Node.js, Typescript.

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Data I/O

Senior .Net Developer

Work Experience : 2018-2021

Back-End Engineer adding support for several IoT Devices. Contributed to the increase of Data IO rank to #1 provider of automated security provisioning by significantly contributing to improving the existing solution to support several most trendy IoT devices by designing a highly-flexible secure provisioning algorithm.

  • Contributed to Data IO becoming NXP’s #1 security provisioning solution provider by understanding & solving the business needs of the client, by designing a “Counterfeit Device Detection” capability for the NXP SE050 device, and by participating in the design of a plug-and-play dynamic user-interface.
  • Reduced the time of NXP SE050 programming by 20%, by increasing the speed of the SE050 programming algorithm, by efficiently operating all CPU cores by using .NET Parallel Programming.

Skills: C# / .NET, Python, JSON, Test-Driven Development (NUnit, Moq), Cryptography.

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Avaya - Ethernet Routing Switch Family

Senior C/C++ Embedded Engineer

Categories

Work Experience : 2003-2017

The client, an important player in the telecommunication industry, was struggling to keep up with the market competition due to lacking a competitive development team.

  • Decreased the effort needed to sustain the VRRP feature from 5 developers/year to 1 developer/year by improving software architecture while leading a fast-paced team of 5 developers, redesigning VRRP to run on a different task, and by raising the priority for VRRP heartbeat packets through the protocol stack.
  • Contributed to winning a DoD contract of 30 million $ by implementing specific DoD requirements, and by improving the existing SSH and SSL design with stronger encryption keys and more secure key exchange algorithms.
  • Decreased the device connection downtime caused by a network topology change from 5 minutes to 5 seconds by redesigning the software architecture by event-driven programming connecting different tasks running on the device.
  • Increased the product lifetime by 5 years, by designing a custom-tailored solution to extend the lifetime of the flash memory, by designing a highly-efficient data caching solution optimizing the flash memory usage.
  • Skills: C/C++, VxWorks RTOS, Tornado, Clear Case, Jira, Mantis, Clarify, IEEE 802.xx telecommunication standards, C# / .NET.
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Previous Roles

Categories

Work Experience : 1996-2002
  • Senior Tcl/Expect Developer at Nortel Networks / Passport Voice Gateway (PVG) (1999-2002)
  • Verilog DHL Developer at Metaflow Technologies – Caesar (1997-1999)
  • Visual C++ Developer at NedGraphics (1996-1997)
  • Visual C++ Developer at Image Processing Lab (1996-2001)

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