Available to hire
I’m Mohammad Mostajab, a backend and integration-focused software engineer based in Budapest, Hungary. I’ve spent 24+ years delivering robust ERP backends, IoT connectivity, and enterprise integrations (OPC UA, BACnet, MQTT), with a track record of integrating SAP R/3 and SAP HANA and driving reliable, scalable systems.
Beyond backend work, I enjoy building web UI features using HTML/CSS/JavaScript and modern frameworks (Angular, React, Vue.js). I value collaboration, clean architecture, and thorough observability with tools like DataDog.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Persian
Fluent
Work Experience
Software Engineer at FunnelCloud (Canada)
August 1, 2024 - May 31, 2025Developed C#/.NET Core microservices to ingest shop-floor telemetry data using MQTT and OPC UA protocols, buffered data with SQLite, and persisted it to PostgreSQL and SQL Server. Integrated this data with Oracle, SAP, and MES systems, ensuring seamless data flow and system interoperability. Utilized tools such as Data Dog for monitoring.
Software Engineer at EfficientIO (Austria)
October 1, 2023 - May 31, 2024Mapped BACnet devices and objects on an OPC UA server to enable visibility and bidirectional communication between BACnet and OPC UA. Supported subscription and notifications between these protocols and developed using technologies including IoT, C#, OPC UA Foundation server, BACnet client, MQTT, React JS, Raspberry Pi, and Linux services.
Software Engineer at SoftLab (Italy)
October 1, 2023 - March 31, 2024Created dynamic forms and reports by leveraging React JS, Formik, Material UI, React Redux, Java, and Spring Boot, enhancing user interactivity and data presentation.
Software Engineer at Intec (Greek)
June 1, 2023 - July 31, 2023Set up UA-.NETStandard-master and integrated a honey-pot algorithm to secure OPC UA servers by detecting unauthorized connection attempts. Managed data storage in JSON format and utilized ASP.NET Core, C#, SQL Server, GitLab, and Jira.
Software Engineer at Deltabloc (Austria)
May 1, 2023 - June 30, 2023Implemented a project tracking application using ASP.NET Core, C#, REST API, Blazor, and SQL Server to streamline project management processes.
Software Engineer at DataMagic (Hungary)
May 1, 2022 - August 31, 2023Developed three ASP.NET and Angular components including a calendar (FullCalendar), business graphs (GoJS), and an RTF editor (CKEditor5). Utilized SQL, Agile methodologies, Docker, GitLab, and Jira for agile project management and deployment.
Software Engineer at Successfactory (Netherlands)
July 1, 2022 - August 31, 2022Built a small ticket selling project for an event in Abu Dhabi using PHP, MySQL, AWS, and Stripe for payment processing.
Software Engineer at ExxonMobil (Hungary)
October 1, 2021 - August 31, 2022Developed Linux scripts to convert MySQL data to XML for transfer to SQL Server, implemented RESTful APIs for data transfer, created stored procedures and functions to process XML data, and developed applications to move data to SAP via API calls. Worked extensively with Agile, Git CI/CD, Linux commands, and XML technologies.
Software Engineer at Revize (USA)
June 1, 2021 - October 31, 2022Developed websites using CMS, PHP, Java, and MySQL. Provided site support using Slack, Monday.com, and Microsoft Teams. Played key roles in front-end and back-end support and development.
Software Engineer at EURACO GROUP EU Kft (Jersey Island)
February 1, 2021 - October 31, 2021Implemented warehouse, purchasing, and ordering applications using Cake PHP, MySQL, HTML, JavaScript, jQuery, and Bootstrap, designed to work on packet PCs for receipt and picking.
Front-End & Back-End Programmer at ECOSOSH (Germany)
November 1, 2020 - June 30, 2021Developed solutions for reading and storing data from various IoT devices into DynamoDB, created tokens for database access using Identity Pool, processed JSON data, and built data visualizations using JavaScript, Python, and Django. Technologies included AWS, IoT, Amazon Web API Gateway, DynamoDB, and Python.
Software Engineer at IKCo (Automotive Industry)
January 1, 2014 - December 31, 2020Senior software and web-based application developer for Human Resources Department designing and developing an HRMS with five subsystems covering over 23,000 employees. Developed systems include Job Analysis, Employee Performance Evaluation, Competency System, DISC Test, and SMS Communication. Technologies used: C#, ASP.NET, MVC, Windows Service, SQL Server, Web API, Entity Framework, XML, XSLT, JSON, REST API. Also developed Logistics Information System with over 2000 users covering supply chain management, ETL processes, SAP customization using ABAP, and coordination of the SAP implementation project. Managed SDLC, testing, and end-user training.
Software Developer at Etebar Sanji Hafez Saman (Banking)
January 1, 2014 - December 31, 2015Developed Client Evaluation System to manage client information, credit scoring, and loan eligibility for over 1,000,000 users by implementing the Experian company algorithm. Technologies used: ASP.NET MVC, Entity Framework, SQL Server, Web Service.
Software Developer at Parsian Electronic Commerce (Banking)
January 1, 2004 - December 31, 2006Developed Online Banking System providing online banking, credit scoring, and bill payment services for more than 1,000,000 customers. Technologies included ASP.NET, SQL Server, and Web Services.
Software Engineer at EneRies (Austria)
August 1, 2025 - September 16, 2025EfficientIO has changed its name to EneRies. The project involves integrating BACnet data with an OPC UA Server to allow data modification on BACnet via OPC UA and reflect updates on the OPC UA server. MQTT is used to persist the data. Project developed in C#.NET and installed on Raspberry Pi.
Software Engineer at FunnelCloud (Canada)
May 1, 2025 - September 16, 2025Develop C#/.NET Core microservices to ingest shop-floor telemetry (MQTT, OPC UA), buffer with SQLite and persist to PostgreSQL/SQL Server. Integrate data with Oracle, SAP & MES, Azure.
Software Engineer at EfficientIO (Austria)
May 1, 2024 - September 16, 2025Mapping BACnet devices and objects on an OPC UA Server to expose BACnet devices on OPC UA, subscribe to OPC UA on BACnet and receive notifications; changes on OPC UA reflect on BACnet and vice versa. MQTT used for data persistence.
Software Engineer at SoftLab (Italy)
March 1, 2024 - September 16, 2025Creating dynamic forms and reports using ReactJS, Formik, MUI, React-Redux, Hooks, Java and Spring Boot.
Software Engineer at Intec (Greek)
July 1, 2023 - September 16, 2025Set up UA-.NETStandard-master and add Honey-pot algorithm to secure server; log connection attempts; data stored as JSON in fields. Technologies: ASP.NET Core, C#, SQL Server, JSON, OPC UA.
Software Engineer at Deltabloc (Austria)
June 1, 2023 - September 16, 2025Implemented an application for tracking projects using ASP.NET Core, C#, REST API, Blazor, SQL Server, Azure, ADO.NET.
Software Engineer at DataMagic (Hungary)
August 1, 2023 - September 16, 2025Created three components: 1) calendar (FullCalendar); 2) business graph (GoJS); 3) RTF editor (CKEditor5); implemented with SQL, Agile, Git, Docker, Web API, JSON, REST API; Tech stack: C#, ASP.NET Core.
Software Engineer at ExxonMobil (Hungary)
August 1, 2022 - September 16, 2025Implemented Linux scripts to generate XML files from MySQL to SQL Server; built Web API to transfer XML to SQL Server; created stored procedures to process XML data; implemented data transfer to SAP via API; worked with Linux commands.
Contractor - Software Engineer at Revize (USA)
October 1, 2022 - September 16, 2025Developing websites using CMS, PHP, Java and MySQL. Providing site support via Slack, Monday, and Microsoft Teams. Technologies: HTML, CSS, JavaScript, PHP, Java, MySQL; CI/CD; Bitbucket.
Contractor - Software Engineer at EURACO GROUP EU Kft (Jersey Island)
October 1, 2021 - September 16, 2025Implemented an application for warehouse, purchasing and ordering using CakePHP, MySQL, HTML, JavaScript, jQuery, Bootstrap; designed for use on packet PCs for receipt and picking.
Full Stack Developer at FULLSTACK ECOSOSH (Germany)
June 1, 2021 - September 16, 2025Reading data from various IoT devices and storing them in DynamoDB; token-based access via Identity Pool; scanning data (JSON), processing data and drawing graphs using JavaScript, Python and Django.
Software Engineer at IKCo (Automotive Industry)
December 31, 2020 - September 16, 2025Senior software and web-based HRMS developer responsible for designing and developing an HRMS with multiple subsystems supporting over 23,000 employees; modules include Job Analysis, Performance Evaluation, Competency, DISC tests, SMS, and SAP integration; managed SDLC, release, testing, quality control, and end-user training.
Software Engineer at IKCo (Automotive Industry)
December 31, 2014 - September 16, 2025Logistics Information System (LIS) design and development for supply chain management; ETL on mainframe ( Supra ), data tracing from SQL Server, and data from Oracle; SAP module customization (GR, RTP, IM, WM, PUR); led SAP implementation and trained end users; managed all SDLC phases.
Software Developer at Etebar Sanji Hafez Saman (Banking)
December 31, 2015 - September 16, 2025Client Evaluation System; implemented Experian scoring algorithm and loan eligibility for over 1,000,000 users; management of client information and credit scoring features.
Software Developer at Parsian Electronic Commerce (Banking)
December 31, 2006 - September 16, 2025Online Banking System development including online banking, credit scoring and bill payment services used by more than 1,000,000 customers.
Software Engineer at EneRies (Austria)
August 1, 2025 - September 29, 2025Developed BACnet-to-OPC UA integration on C#.NET for Raspberry Pi; enabling BACnet data modification via OPC UA and reflecting BACnet updates on the OPC UA server; MQTT used for data persistence and transmission.
Software Engineer at FunnelCloud
May 1, 2025 - September 29, 2025Developed C#/.NET Core microservices to ingest shop-floor telemetry (MQTT, OPC UA), buffered with SQLite, and persisted to PostgreSQL/SQL Server; integrated data with Oracle, SAP & MES; deployed in Azure.
Software Engineer at EfficientIO
May 1, 2024 - September 29, 2025Mapped BACnet devices/objects onto an OPC UA Server to expose BACNET devices/variables on OPC UA; enabled OPC UA subscriptions to update BACnet in real-time; MQTT and Raspberry Pi involved; Linux packaging.
Software Engineer at SoftLab
March 1, 2024 - September 29, 2025Created dynamic forms and reports using React.js, Formik, MUI, React-Redux; integrated front-end with Java/Spring Boot backend.
Software Engineer at Intec
July 1, 2023 - September 29, 2025Set up UA-.NET Standard-based server and integrated Honey-pot analysis to log connection attempts; represented data as JSON within fields to monitor security.
Software Engineer at Deltabloc
June 1, 2023 - September 29, 2025Implemented a project-tracking application using ASP.NET Core, C#, REST API, Blazor; deployed on Azure.
Software Engineer at DataMagic
August 1, 2023 - September 29, 2025Created three components: 1) calendar (Full Calendar) 2) business graph (GoJS) 3) RTF editor (CKEditor5); involved SQL, Agile, Git; Docker, Jira.
Software Engineer at ExxonMobil
August 1, 2022 - September 29, 2025Linux scripting to transform MySQL XML to SQL Server; web API to move XML data to SQL Server; implemented stored procedures/functions to process XML data; integrated with SAP API.
Software Engineer at Revize
October 1, 2022 - September 29, 2025Developed CMS-based websites using PHP, Java and MySQL; site support via Slack, Monday, and Microsoft Teams; involved CI/CD with Bitbucket.
Software Engineer at EURACO GROUP EU Kft
October 1, 2021 - September 29, 2025Implemented a warehouse, purchasing, and ordering application using CakePHP, MySQL, HTML/JS; designed for use on packet PCs with reliable performance.
Software Engineer at FULLSTACK ECOSOSH
June 1, 2021 - September 29, 2025Read data from various IoT devices, stored in DynamoDB; created a token-based identity pool; scanned data, processed JSON, and generated graphs using JavaScript, Python, Django.
Senior Software Engineer at IKCo (Automotive Industry)
January 1, 2020 - September 29, 2025Led HRMS development across 5 subsystems for 23,000 employees; technologies include C#, ASP.NET, MVC, Windows Service, SQL Server, Web API, EF; implemented SAP modules (GR, RTP, IM, WM, PUR); acted as IT coordinator for SAP implementation; managed SDLC, release, testing, quality control, and end-user training.
Software Engineer at IKCo (Automotive Industry)
January 1, 2014 - September 29, 2025Designed and developed Logistics Information System (LIS) for end-to-end supply chain; ETL across mainframe, SQL Server, Oracle; created online dashboards; supported SAP module customization (GR, RTP, IM, WM, PUR).
Software Developer at Etebar Sanji Hafez Saman (Banking)
January 1, 2015 - September 29, 2025Client Evaluation System implementing Experian-like scoring; system supports over 1,000,000 users; technologies include ASP.NET MVC, EF, SQL Server, Web Service, ADO.NET.
Software Developer at Parsian Electronic Commerce (Banking)
January 1, 2006 - September 29, 2025Online Banking System with online banking, credit scoring, and bill payment services for over 1,000,000 customers.
Software Engineer at EneRies (Austria)
August 31, 2025 - September 29, 2025Develop C#.NET-based integration for BACnet data with an OPC UA Server, enabling BACnet data modification via OPC UA and reflecting updates on BACnet to the OPC UA server. MQTT is used for data persistence. Project deployed on Raspberry Pi.
Software Engineer at FunnelCloud (Canada)
May 31, 2025 - September 29, 2025Develop C#/.NET Core microservices to ingest shop-floor telemetry (MQTT, OPC UA), buffer with SQLite and persist to PostgreSQL/SQL Server; integrate data with Oracle, SAP & MES, Azure.
Software Engineer at EfficientIO (Austria)
May 31, 2024 - September 29, 2025Mapping BACnet devices and objects on an OPC UA Server to expose BACnet devices/variables on OPC UA and enable bidirectional updates with MQTT notifications.
Software Engineer at SoftLab (Italy)
March 31, 2024 - September 29, 2025Creating dynamic forms and reports using React.js, Formik, MUI, React-Redux, and integration with Java and Spring Boot.
Software Engineer at Intec (Greece)
July 31, 2023 - September 29, 2025Set up UA-.NET Standard and added honeypot security measures; stored data as JSON and designed secure data access.
Software Engineer at Deltabloc (Austria)
June 30, 2023 - September 29, 2025Implemented a project-tracking application using ASP.NET Core, C#, REST API, Blazor; Azure; SQL Server.
Software Engineer at DataMagic (Hungary)
August 31, 2023 - September 29, 2025Created three components: 1) Calendar (FullCalendar), 2) Business graph (GoJS), 3) RTF editor (CKEditor5); technologies include ASP.NET Core, Angular, SQL Server; Agile, Git, Docker.
Software Engineer at ExxonMobil (Hungary)
August 31, 2022 - September 29, 2025Implemented Linux scripts to convert MySQL to XML and transfer to SQL Server; developed Web API to move XML to SQL Server; created stored procedures for XML processing and SAP API integration.
Software Engineer at Revize (USA)
October 31, 2022 - September 29, 2025Developing website using CMS, PHP, Java and MySQL; site support via Slack, Monday, MS Teams; CI/CD and Bitbucket.
Software Engineer at EURACO GROUP EU Kft (Jersey Island)
October 31, 2021 - September 29, 2025Implemented warehouse, purchasing and ordering application using CakePHP, MySQL; runs on packet PCs for receipts and picking.
Full-Stack Developer at FULLSTACK ECOSOSH (Germany)
June 30, 2021 - September 29, 2025Reading data from various IoT devices and storing in DynamoDB; token-based access via Identity Pool; data processing and graphing with JavaScript, Python, Django.
Software Engineer at IKCo (Automotive Industry)
December 31, 2020 - September 29, 2025Senior software and web-based HRMS development; multiple HR subsystems; ETL, SAP coordination; managed a team of 18; SDLC, release management, testing and training.
Software Engineer at IKCo (Automotive Industry)
December 31, 2014 - September 29, 2025Designed and developed Logistics Information System; implemented SAP modules with ABAP; performed SDLC governance and end-user training.
Software Engineer at Etebar Sanji Hafez Saman (Banking)
December 31, 2015 - September 29, 2025Client Evaluation System implementing Experian scoring and loan eligibility; system supports over 1,000,000 users.
Software Developer at Parsian Electronic Commerce (Banking)
December 31, 2006 - September 29, 2025Online Banking, credit scoring and bill payment services.
Software Engineer at 10XOne
January 1, 2025 - PresentDevelopment and support of enterprise ERP applications using C#/.NET and SQL Server.
Industrial Automation Engineer at EneRies / EfficientIO
January 1, 2025 - PresentIndustrial integration of BACnet and OPC UA systems with MQTT and LoRaWAN-based data persistence using PostgreSQL and Kubernetes-based deployment.
Software Engineer - .NET Microservices at FunnelCloud
January 1, 2024 - January 1, 2025.NET microservices for shop-floor telemetry ingestion and integration with ERP and MES platforms.
Software Engineer - Industrial Automation at EfficientIO / SoftLab / Intec
January 1, 2023 - January 1, 2024Industrial automation, OPC UA integrations, and full-stack web development.
Data Integration Engineer at ExxonMobil
January 1, 2021 - January 1, 2022Enterprise data integration involving SAP HANA, SQL Server, and Linux-based automation.
Full-Stack Developer at Revize
January 1, 2021 - January 1, 2022CMS-based enterprise web platforms using PHP, Java, and MySQL.
Software Engineer at Euraco Group
January 1, 2021 - January 1, 2021Warehouse and ordering systems developed with CakePHP and MySQL.
Senior Software Engineer / ERP & Logistics at IKCO
January 1, 2000 - January 1, 2020Enterprise ERP and logistics platforms developed with ASP.NET, C#, VB.NET, SQL Server and Oracle, with SAP R/3 integrations.
Software Engineer at WEC
September 1, 2025 - January 1, 2026Implemented edge-side LoRaWAN (ABP) decryption on Dragino OpenWrt gateways for offline/low-latency deployments. Built decoders and published JSON telemetry to local MQTT; documented operations.
Software Engineer at EneRies
May 1, 2025 - August 1, 2025Built .NET integration between BACnet and OPC UA (bi-directional updates) with MQTT synchronization; deployed on Raspberry Pi/Linux.
Software Engineer at FunnelCloud
August 1, 2024 - May 1, 2025Built .NET microservices for telemetry ingestion (MQTT/OPC UA), buffering (SQLite), and persistence (PostgreSQL/SQL Server). Integrated with enterprise systems (Oracle/SAP/MES) and improved observability (DataDog).
Software Engineer at ExxonMobil
October 1, 2021 - August 1, 2022Built XML-based integrations and Web APIs; implemented SQL procedures for data processing and loading; integrated business flows with SAP HANA (data exchange/integration).
Software Engineer at EfficientIO
October 1, 2023 - May 1, 2024Mapped BACnet devices to OPC UA for visibility/subscriptions and enabled change propagation between OPC UA and BACnet.
Software Engineer at SoftLab
October 1, 2023 - March 1, 2024Created dynamic forms/reports in React (Formik/MUI/Redux) with Java/Spring Boot backend components.
Software Engineer at DataMagic
May 1, 2022 - August 1, 2023Delivered Web API + Angular features with SQL backend; built reusable UI components (FullCalendar, GoJS, CKEditor 5).
Software Engineer at Revize
June 1, 2021 - October 1, 2022CMS-driven websites and support. Tech: PHP, Java, MySQL, HTML/CSS/JS.
Software Engineer at Ecososh
November 1, 2020 - June 1, 2021AWS IoT ingestion to DynamoDB + dashboards.
Software Engineer at IKCO
January 1, 2000 - December 31, 2020Large-scale HRMS (23k+ employees) + logistics systems; ETL/integrations; worked with SAP R/3.
Education
BSc at Tehran University
January 1, 1998 - December 31, 1998IT Programming at Wekerle Business School (Hungary/Budapest)
January 1, 2021 - December 31, 2021Computer Science (BSc) at Tehran University
January 11, 2030 - January 1, 2005IT Programming at Wekerle Business School
January 11, 2030 - January 1, 2021BSc at Tehran University
January 11, 2030 - January 1, 2005IT Programming at Wekerle Business School
January 11, 2030 - January 1, 2021IT Programming at Tehran University
January 11, 2030 - January 1, 1998BSc Computer Science at Tehran University
January 11, 2030 - January 1, 2005Course/Program at Wekerle Business School
January 1, 2021 - September 29, 2025IT Programming at Wekerle Business School (Budapest)
January 1, 2021 - March 6, 2026BSc in Computer Science at Tehran University
January 11, 2030 - January 1, 1998Qualifications
SAP ABAP Programming Course
January 1, 2013 - December 31, 2013SAP Overview Course
January 1, 2013 - December 31, 2013ITIL@v3 Foundation Course
January 1, 2012 - December 31, 2012Oracle 9i Introduction and PL SQL
January 1, 2004 - December 31, 2004UML (Relational Data Base Design)
January 1, 2002 - December 31, 2002SAP ABAP Programming Course
January 1, 2013 - January 1, 2013ITIL@v3 Foundation Course
January 1, 2012 - January 1, 2012Oracle 9i Introduction and PL SQL
January 1, 2004 - January 1, 2004UML (Relational Data Base Design)
January 1, 2002 - January 1, 2002SAP ABAP Programming Course
January 1, 2013 - January 1, 2013ITIL v3 Foundation
January 1, 2012 - January 1, 2012Oracle 9i Introduction and PL SQL
January 1, 2004 - January 1, 2004SAP ABAP Programming Course
January 1, 2013 - September 29, 2025ITIL v3 Foundation Course
January 1, 2012 - September 29, 2025Oracle 9i Introduction and PL SQL
January 1, 2004 - September 29, 2025UML (Relational Data Base Design)
January 1, 2002 - September 29, 2025ITIL v3 Foundation
January 11, 2030 - March 6, 2026SAP ABAP Programming
January 11, 2030 - March 6, 2026Oracle 9i & PL/SQL
January 11, 2030 - March 6, 2026UML/Relational DB Design
January 11, 2030 - March 6, 2026Industry Experience
Software & Internet, Manufacturing, Energy & Utilities, Financial Services, Professional Services, Other, Transportation & Logistics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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