Solution Architect

Architecture practice rooted in solutions and design — concrete models, patterns, and hands-on implementation choices — rather than in governance frameworks. Works best in organizations that treat architecture as a delivery function.

me@lomov.tech · linkedin.com/in/alexander-lomov/

Solution Architect with 24 years of experience in the IT industry, specialising in data modelling and software engineering. Dedicated and results-driven professional with a proven track record of delivering high-quality solutions across various domains. Possessing extensive expertise in Solution and Data Architecture, with a keen focus on scalability, performance optimisation, and system architecture design. Demonstrated ability to drive development teams and collaborate effectively with stakeholders to achieve project objectives.

Core competencies

Independent Consultant, 02.2021 – present

Working as an independent consultant, taking on solution and data architecture engagements with enterprise clients.

06.2025 – present

Data and Solution Architect, T-Mobile Croatia (Hrvatski Telekom)

  • Authoring data contract designs using the Open Data Contract Standard (ODCS v3.1.0), including polymorphic contract patterns that route discriminated payloads to distinct Hub/Satellite pairs while preserving a single logical contract surface for producers.
  • Designed a three-zone data feed monitoring framework — Infrastructure, Pipeline, and Data Quality — separating signals by failure domain and binding each zone to its own escalation path. Defines the seam between platform-level observability and contract-level data quality assertions.
  • Established a four-tier severity model (P3/P2/P1/P1+) for data incident management, mapping technical signal severity to business impact and aligning incident routing across producer, consumer, and platform teams.
  • Specified Cockburn-style use cases for third-party data contract violation escalation, formalising the producer–consumer–operations workflow that governs cross-organisational data sharing.
  • Designed a Data Vault 2.0 raw-vault foundation for the Group's analytical platform, applying Multi-Active Satellites for slowly-changing reference data, JSON-typed satellites for high-cardinality event payloads, and PIT tables to stabilise downstream analytical queries against an append-only, source-agnostic substrate.
  • Designed outbound campaign management integration for the Group's unified contact center.
10.2023 – 03.2025

IT Architect Specialist, FIS Global

  • Served as a subject matter expert (SME) on the framework, providing guidance and support to downstream product implementors.
  • Offered hands-on expertise for implementing core changes within the framework, particularly in areas involving scalability and failover implementations.
  • Acted as a primary liaison for stakeholders, addressing technical and strategic inquiries related to the framework stack.
03.2022 – 08.2023

Hands-on Solution Architect, T-Mobile Croatia (Hrvatski Telekom)

  • Led the transformation of the Fixed Services BSS stack to harmonise with the Mobile BSS, fostering convergence and efficiency across platforms.
  • Improved the BSS system performance, decreasing resource consumption.
  • Designed and drove the implementation of the new Business Rule Engine to further facilitate the Digital Business Transformation by meeting the new business model requirements.
  • Designed and drove the implementation of the items availability system to empower new online retail strategy.
02.2021 – 02.2022

Scala Engineer, FedEx Express and TNT

  • Developed and deployed an automated booking system for Covid-vaccine container returns, resulting in a turnover time reduction.
  • Established a robust Code Vulnerabilities Control system, aligning with company-wide standards for code security and compliance.

Earlier experience

08.2020 – 02.2021

Scala Engineer · Evolution

10.2017 – 07.2020

Head of Development · FastForward.ai

  • Accomplished a monolithic MVP transition to a multi-tenant microservice-based solution for Telcos.
  • Drove the integration projects for Ooredoo and Digicel Telecom groups to implement the FastForward customer self-service solution.
  • Designed and drove the implementation of the self-service API for the Group Telco Business Units.
  • Designed and delivered an OpenID Connect-based solution for the Group Telco Business Units providing for seamless self-service authentication experience for Telco customers in 13 countries.
05.2015 – 09.2017

IT Architect · VEON

  • Designed and implemented Carrier Billing solution for VimpelCom (Veon) Telco group delivering the ability for Google Play, Microsoft Marketplace and Opera WebShop customers to employ their mobile wallet balance for check-outs.
  • Designed and implemented Unified Telecom Customer Profile near-realtime access data store for VimpelCom Russia Business Unit.
07.2011 – 04.2015

Senior Expert · AT Consulting

11.2008 – 06.2011

Senior Enterprise Architect · VimpelCom

  • Implemented a company-grade ESB solution to leverage SOA, which resulted in a 20% faster time-to-market for BSS solutions.
02.2007 – 11.2008

Technical Leader · Ajilon Consulting LLC

09.2005 – 02.2007

Software Developer · VimpelCom

Early career

Education

Skills

Hard skills

Software architecture, Software development, Solution architecture, Data modelling, API design

Soft skills

Teamwork, Stakeholder support and interaction, Leadership

Languages