Oleksandr Troitskyi

Led a cross-functional engineering team driving automation of business processes and cost-efficient ad delivery in the Brand Marketing department. 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Built and scaled a new software engineering team, defining agile workflows, team ceremonies, and clear documentation practices (C4)   • Designed and delivered critical software solutions with a focus on minimising costs and accelerating time-to-market   • Drove long-term automation initiatives to streamline departmental operations and eliminate manual overhead   • Established structured collaboration with internal and external stakeholders, significantly improving clarity of requests and reducing inefficiencies in task planning 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Delivered process automation improvements that saved ~500 hours annually by identifying and executing high-impact "quick wins"   • Led a full migration to a new AdTech provider, cutting annual ad management costs by 32%   • Increased automation of a core business workflow from 15% to 90%, resulting in approximately €200K in yearly savings

Drove key technical initiatives that enabled rapid product scaling, improved developer workflows, and supported the company’s expansion into international markets. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Tripled the game offering within one month by leading the integration of multiple online casino providers   • Unblocked company expansion into Australia, Brazil, and Canada by meeting technical procurement and security requirements   • Improved performance of marketing landing pages by 60%, leading to a 20% reduction in marketing budget   • Reduced landing page delivery time from 1 week to 4 hours through the development of an automated review and deployment system 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Led cross-functional collaboration with Marketing, Product, Project Management, external vendors, and security teams   • Owned the end-to-end integration of third-party casino platforms, including technical coordination with external providers   • Refactored Google Tag Manager setup and migrated tracking to a server-side (S2S) architecture   • Advised executive leadership on technology strategy, team structure, and architectural direction   • Delivered infrastructure and software PoCs to improve product stability and performance   • Managed QA and SysOps teams, introducing best practices, improving internal workflows, and enhancing stakeholder communication   • Scaled the engineering team through structured hiring, onboarding, and mentorship   • Introduced C4 architecture documentation, CI/CD improvements, and testing pipelines to professionalise the development process   • Implemented consistent coding standards, peer review practices, and technical documentation workflows   • Maintained compliance with internal security standards across infrastructure and software development

Led the design and delivery of a scalable SMS service for Canada and the USA markets, which supported both external client campaigns and internal RocketBank service notifications. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Designed and launched a fault-tolerant SMS platform serving both business clients and internal operations   • Advocated for an MVP-first approach, enabling the first client onboarding 6 months ahead of schedule 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Architected the SMS service for high scalability, reliability, and seamless integration with RocketBank systems   • Directed the development process, managing a distributed team of freelance engineers   • Partnered with Business Analysts and Product Owners to align technical delivery with business goals   • Produced and maintained technical documentation, including C4 diagrams and BPMN workflows   • Defined the product roadmap, ensuring phased delivery from MVP to full-scale rollout

Managed a cross-functional engineering team to reverse engineer, refactor, and modernise the legacy Vendor Card Pay Service platform for the US market. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Cut infrastructure costs by 60% through database optimisation, server utilisation improvements, and adoption of AWS services   • Reduced deployment time for new self-hosted clients from 10 days to 1 day by streamlining rollout processes   • Achieved 99.5% service availability by implementing unit and integration testing, significantly reducing system crashes 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Reverse-engineered the legacy Vendor Card Pay Service, creating C4 and BPMN documentation for system architecture and workflows   • Developed and executed a strategy for code and infrastructure refactoring and optimisation, based on Domain-driven design practices   • Designed and oversaw migration to AWS, ensuring cost efficiency and scalability   • Optimised CI/CD pipelines to accelerate and stabilise releases   • Managed a cross-functional team, including DevOps engineers, through the modernisation process   • Collaborated with Business Analysts and Product Owners to define the product roadmap during and after the refactoring phase   • Coordinated integration with multiple third-party REST APIs

Guided the modernisation of a suite of outdated monolithic websites with complex business logic, migrating them to a modern technology stack. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Defined and implemented a baseline architecture that reduced the development lifecycle for each website by 60% 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Advised the engineering team on architectural and technical decisions to ensure a smooth refactoring process   • Oversaw the project roadmap, aligning technical milestones with business priorities   • Introduced engineering best practices, including Domain-Driven Design (DDD), deployment gateways, CI/CD pipelines, and structured code reviews   • Partnered with the Project Manager to deliver key milestones on schedule   • Supported the creation of comprehensive documentation covering service architecture, infrastructure, and business logic for each website

Led the engineering department of a travel startup, focusing on building a scalable, high-quality solution with Global Distribution System (GDS) integration at its core. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Built a fully functional IT department from scratch, scaling to 15 team members   • Delivered a development roadmap that enabled the company to acquire its first clients ahead of schedule   • Introduced and implemented several initiatives that allowed us to keep infrastructure costs considerably low, avoiding overspending 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Established and scaled the engineering team, defining workflows and development processes   • Set the technical vision, aligning technology choices with business objectives   • Directed research and development efforts, including third-party service integrations   • Created and managed timelines for the development and deployment of core application features   • Designed the fundamental architecture using Domain-Driven Design (DDD) principles   • Integrated GDS services like Amadeus and Galileo, including in-depth analysis, UML documentation, backend architecture, and service implementation   • Introduced Test-Driven Development (TDD) practices into the workflow   • Implemented Docker for internal services and CI/CD pipelines   • Made executive technology decisions in collaboration with company leadership   • Mentored senior engineers in architecture and software engineering best practices   • Maintained a customer-focused approach in delivering IT projects to market   • Monitored and evaluated emerging technology trends to guide strategic planning

Co-founded and managed a small web studio delivering websites and CRM solutions for clients across various industries. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Built strong client relationships that led to long-term, repeat business partnerships 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Managed day-to-day studio operations and project delivery   • Led a cross-functional team of five engineers, providing mentorship to mid- and senior-level developers   • Designed and developed full-stack websites for client projects   • Negotiated with clients to align technical solutions with business needs

Delivered freelance software development projects of varying scope and complexity through the Upwork platform. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Built a strong, trusted Upwork presence with consistently positive client feedback   • Established long-term collaborations with multiple companies and individual clients 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Communicated with clients to gather requirements and define project goals   • Estimated project timelines and managed delivery expectations   • Designed and developed tailored software solutions to meet client needs

Worked in a small web studio delivering client websites and establishing efficient development processes. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:   • Secured multiple client contracts by translating technical solutions into clear business value for non-technical stakeholders   • Introduced standardised workflows and processes, accelerating development timelines and improving delivery consistency 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:   • Communicated directly with clients to gather requirements and align deliverables with business goals   • Developed websites using WordPress, PHP, JavaScript, and various CRM platforms   • Provided technical guidance and mentorship to other engineers   • Advised the team on best practices to improve code quality and maintainability