07/23/2026 updated
100 % available
Senior Software Engineer | Python, Node.js, AWS | B2B SaaS & Event Technology Platforms
Radom, Poland
Only remote
Bachelor's Degree, Computer ScienceAbout me
Senior Software Engineer with 8+ years of experience building multi-region B2B SaaS platforms, event technology infrastructure, real-time registration and ticketing systems, and exhibitor management portals at scale.
RAGTailwind CSSLLMLangChainSupabaseJava (Programming Language)JavaScriptAmazon Web ServicesDjangoPython (Programming Language)PostgreSQLNext.jsTypeScriptReact.jsFastAPI
Python & Node.js Backend Development
Extensive experience building high-traffic backend services and microservices using Python (FastAPI, Flask) and Node.js, powering real-time registration, ticketing, and data orchestration platforms serving tens of thousands of concurrent users across international markets.
AWS Cloud Infrastructure & Multi-Region Deployment
Deep expertise in AWS services including Lambda, SQS, S3, RDS, EC2, CloudFront, and CloudWatch, with hands-on experience deploying containerized, high-availability systems across multiple global regions including London, Miami, Singapore, and Sydney.
Data & Database Engineering
Strong proficiency in PostgreSQL, Redis, and MongoDB for high-volume data modeling, caching, and real-time analytics, including schema design for multi-tenant event registration systems supporting millions of attendee and lead records.
CRM & Third-Party API Integrations
Proven track record integrating Salesforce, HubSpot, and Marketo APIs for real-time CRM sync, automated lead routing, exhibitor onboarding, and post-show follow-up pipelines across large-scale B2B event platforms.
Vue.js & Frontend Dashboard Development
Development of exhibitor-facing and organizer dashboards using Vue.js, providing real-time attendee analytics, badge scan lead capture, session engagement data, and post-show lead export functionality.
GDPR & CAN-SPAM Compliant Data Architecture
Design and implementation of GDPR and CAN-SPAM compliant data pipelines across 6+ international jurisdictions, including consent management, encrypted record storage, role-based access control, and automated data retention and deletion workflows.
CI/CD & DevOps with GitHub Actions
Establishment of automated CI/CD pipelines using GitHub Actions, including integration testing, containerized deployments on AWS ECS, and autoscaling configurations ensuring zero downtime during high-traffic event launch windows.
SEO, AEO & GEO Optimization
Leadership of technical SEO infrastructure upgrades, answer engine optimization (AEO) with structured Q&A schema, and generative engine optimization (GEO) strategies to maximize visibility in AI-generated search responses across platforms like ChatGPT, Perplexity, and Google Gemini.
Real-Time WebSockets & Event-Driven Architecture
Implementation of real-time WebSocket communication and AWS SQS/Kafka event-driven architectures for asynchronous notification workflows, badge scanning deduplication, and live attendee engagement tracking at scale.
TypeScript & GraphQL API Development
Experience building RESTful and GraphQL APIs using TypeScript, supporting internal dashboards, external client integrations, and mobile app backends with strict data privacy and sub-100ms response time requirements.
Extensive experience building high-traffic backend services and microservices using Python (FastAPI, Flask) and Node.js, powering real-time registration, ticketing, and data orchestration platforms serving tens of thousands of concurrent users across international markets.
AWS Cloud Infrastructure & Multi-Region Deployment
Deep expertise in AWS services including Lambda, SQS, S3, RDS, EC2, CloudFront, and CloudWatch, with hands-on experience deploying containerized, high-availability systems across multiple global regions including London, Miami, Singapore, and Sydney.
Data & Database Engineering
Strong proficiency in PostgreSQL, Redis, and MongoDB for high-volume data modeling, caching, and real-time analytics, including schema design for multi-tenant event registration systems supporting millions of attendee and lead records.
CRM & Third-Party API Integrations
Proven track record integrating Salesforce, HubSpot, and Marketo APIs for real-time CRM sync, automated lead routing, exhibitor onboarding, and post-show follow-up pipelines across large-scale B2B event platforms.
Vue.js & Frontend Dashboard Development
Development of exhibitor-facing and organizer dashboards using Vue.js, providing real-time attendee analytics, badge scan lead capture, session engagement data, and post-show lead export functionality.
GDPR & CAN-SPAM Compliant Data Architecture
Design and implementation of GDPR and CAN-SPAM compliant data pipelines across 6+ international jurisdictions, including consent management, encrypted record storage, role-based access control, and automated data retention and deletion workflows.
CI/CD & DevOps with GitHub Actions
Establishment of automated CI/CD pipelines using GitHub Actions, including integration testing, containerized deployments on AWS ECS, and autoscaling configurations ensuring zero downtime during high-traffic event launch windows.
SEO, AEO & GEO Optimization
Leadership of technical SEO infrastructure upgrades, answer engine optimization (AEO) with structured Q&A schema, and generative engine optimization (GEO) strategies to maximize visibility in AI-generated search responses across platforms like ChatGPT, Perplexity, and Google Gemini.
Real-Time WebSockets & Event-Driven Architecture
Implementation of real-time WebSocket communication and AWS SQS/Kafka event-driven architectures for asynchronous notification workflows, badge scanning deduplication, and live attendee engagement tracking at scale.
TypeScript & GraphQL API Development
Experience building RESTful and GraphQL APIs using TypeScript, supporting internal dashboards, external client integrations, and mobile app backends with strict data privacy and sub-100ms response time requirements.
Languages
EnglishFluent
Project history
Contracted to lead digital discoverability and B2B content infrastructure upgrades, building SEO foundations, GEO optimization pipelines, and automated demand generation systems. Audited and rebuilt technical SEO foundations, engineered structured Q&A content for AEO, developed a GEO playbook for AI-generated search presence, implemented entity-based SEO strategies, and built a multi-channel visibility dashboard integrating Google Search Console, Ahrefs, and custom AI-citation tracking.
Led backend platform engineering building Python and Node.js microservices on AWS for real-time B2B data orchestration, attendee engagement analytics, and multi-region platform infrastructure for enterprise clients running large-scale events and conferences globally. Architected real-time registration and ticketing pipelines, CRM integrations with Salesforce, HubSpot, and Marketo, AWS SQS Lambda-based exhibitor management engines, B2B attendee matchmaking portals, Vue.js dashboards, PostgreSQL and Redis badge scanning systems, GDPR-compliant data architecture, and a multi-region localized web platform across London, Miami, Singapore, Sydney, Amsterdam, and New York.
Built scalable Python backend services and multi-tenant data pipeline infrastructure for Benchling's enterprise platform serving 1,300+ organizations globally. Designed Python RESTful APIs and webhook adapters for third-party integrations, integrated SQS and Kafka event queues, designed and optimized PostgreSQL schemas for multi-tenant event registration data, built Redis and MongoDB caching layers, deployed containerized Python services on AWS with GDPR compliance, established CI/CD pipelines with GitHub Actions, and built automated email and SMS notification systems for event lifecycle communications.