Lukasz Komur

Legacy forms modernization (React + Express)

2024-06 to Present | Sofomo | The Institutes (risk management and insurance education) | ongoing

Modernization of legacy Oracle-based internal forms/app ('SIMMS') into user-friendly React + Express tools for managing e-commerce operations (not building a storefront).

Roles

• Full Stack Developer
• Backend Engineer

Domains

• E-commerce management systems (not a storefront)

Responsibilities

• Rewrite legacy Oracle forms into modern web UI/UX.
• Implement features for: account creation, account archival, password management.
• Implement e-commerce operations tooling: order management, order views, reporting, statistics, and related admin workflows.

Stack / technologies

• React
• Express
• Node.js
• Oracle DB

Unified User Service (Support)

2024-05 to Present | Sofomo | Breast pump manufacturer (consumer medical device) | ongoing

Part-time backend technical support + targeted enhancements for the existing service after completion.

Roles

• Backend Engineer
• Senior Backend Engineer

Domains

• Authentication / Authorization / IAM

Responsibilities

• Ongoing support: system upgrades and maintenance (MongoDB upgrade, Node.js upgrade).
• Fixing failures/incidents and smaller improvements.
• Building new service functionality enabling new mobile app features (incl. MAM pump support).
• Integration with external AI Agent 'Emma' and delivering data to the frontend.
• Migrating/reconnecting CMS to a new solution.

Highlights

• Integrated external AI Agent 'Emma' and exposed the data to the frontend.
• Performed platform upgrades (MongoDB, Node.js) and stability fixes.
• Executed CMS migration/switch to a new solution.

Stack / technologies

• Node.js
• MongoDB
• TypeScript

Marketing system integration (ActiveCampaign)

2023-12 to 2024-06 | Sofomo | The Institutes (risk management and insurance education) | completed

Integrated a new marketing system (ActiveCampaign) with existing Oracle-based data sources using AWS serverless jobs; handled bidirectional sync and critical paths.

Roles

• Backend Engineer
• Senior Backend Engineer

Domains

• Marketing systems integration / data sync

Responsibilities

• Built AWS Lambda + Python jobs for data synchronization into ActiveCampaign.
• Handled a mix of live API sync calls and job-based sync triggers (DB triggers, DS scripts triggers).
• Focused on two-way synchronization rules and managing critical error paths and data quality constraints.

Stack / technologies

• ActiveCampaign
• AWS Lambda
• Python
• Oracle DB

Unified User Service

2023-03 to 2023-12 | Sofomo | Breast pump manufacturer (consumer medical device) | completed

Centralized scattered user data, provided authentication, integrated with legacy authorization systems, and supported a unified mobile app across multiple device generations.

Roles

• Senior Backend Engineer
• Solution Architect

Domains

• Authentication / Authorization / IAM

Responsibilities

• Designed and developed the Unified User Service.
• Implemented authentication flows and integrated with existing authorization systems.

Stack / technologies

• Node.js
• TypeScript
• JavaScript
• Docker
• GCP Cloud Functions
• GCP API Gateway
• MongoDB
• Firebase
• Pub/Sub

Federal authentication service

2022-02 to 2022-11 | Sofomo | Medical industry platform(s) (federal compliance) | completed

Centralized authentication/authorization for medical industry platforms with federal security compliance and integrations with Identity Providers.

Roles

• Senior Backend Engineer
• Solution Architect

Domains

• Authentication / Authorization / IAM

Responsibilities

• Designed and implemented the auth service with compliance in mind.
• Worked with clients on requirements and integrations with IdPs.

Highlights

• Defensive layer against DDoS and sniffing detection mechanisms.
• Secure login: phishing detection, temp lockouts, invalid token generation on phishing attempts, 2FA, anomaly alerts, token revocation on threat.
• Built SDK for easier adoption of new auth system and RBAC-based access management.

Stack / technologies

• Node.js
• TypeScript
• AWS Cognito
• React
• DocumentDB
• Redis
• Datadog
• Docker

E-commerce platform (core team)

2021-10 to 2023-02 | Sofomo | Large e-commerce retailer | completed

Core development on an e-commerce ecosystem (platform + tooling).

Roles

• Backend Engineer
• Senior Backend Engineer

Domains

• E-commerce management systems (not a storefront)

Responsibilities

• Designed and implemented new platform features.
• R&D/optimization ('green code').
• Built integrations and platform components across UI and backend.

Highlights

• Improved fraud checks: switched external integration Braintree -> Kount; built internal manual review mechanism.
• Salesforce Live Chat integration: React UI session init component + Ruby on Rails admin view + backend handling of complex config combinations.
• Improved scalability by splitting monolith into separate UI & backend; introduced JSON API serializer, Dry Transactions, Swagger docs.

Stack / technologies

• Ruby on Rails
• React
• PostgreSQL
• Redis
• Datadog
• Salesforce

Startup Social Media Platform

2021-04 to 2021-11 | Sofomo | Startup social media platform | completed

Cloud-agnostic, secure, scalable social platform built within ~6 months; designed to handle up to 5M simultaneous users.

Roles

• Backend Tech Lead
• Solution Architect

Domains

• Social platform / high scale

Responsibilities

• Managed backend team (3 devs + 1 QA).
• Designed microservices and functionality as part of product team.
• Owned backend Jira board and sprint goals.
• Worked with security and QA; participated in load tests; delivered end-to-end features.

Stack / technologies

• Node.js
• TypeScript
• Docker
• Kubernetes
• Istio
• Cassandra
• MongoDB
• Redis
• Kafka
• Datadog

Data Science Platform

2019-08 to 2021-03 | Accenture | Accenture internal / enterprise clients (various) | completed

End-to-end platform for creating/configuring servers for project needs.

Roles

• Full Stack Developer

Domains

• Internal platforms / provisioning / dev tools

Responsibilities

• SME for UI, backend ops, architecture, troubleshooting.
• Managed git repo (merges, milestones, release branches).
• Built new API endpoints using Lambda.
• Coordinated cross-team releases.

Stack / technologies

• AWS API Gateway
• AWS Lambda
• Python
• FastAPI
• Node.js
• Express
• Angular
• DocumentDB
• DynamoDB
• AWS Cognito
• NGINX

End-to-End Testing Framework

2018-12 to 2019-08 | Accenture | Accenture internal / enterprise clients (various) | completed

Roles

• Software Development Engineer in Test

Domains

• Automation testing frameworks

Responsibilities

• Set up and maintained Golem-based E2E automation framework.
• Trained testers (Python, API rules, Selenium, XPath).
• Built visual regression (OpenCV) and dedicated API test modules.
• Integrated GitLab pipeline, improved reporting, auto-created Jira bugs.
• Handled environment-specific test data gaps.

Stack / technologies

• Python
• Golem (testing framework)
• Selenium
• OpenCV
• MongoDB

Virtual HR Assistant

2018-08 to 2018-12 | Accenture | Accenture internal / enterprise clients (various) | completed

Roles

• Full Stack Developer

Domains

• Internal platforms / provisioning / dev tools

Responsibilities

• Built front-end chat.
• Built backend microservices for NLP.
• Designed intents/patterns and dialog logic in IBM Watson Assistant.

Stack / technologies

• AngularJS
• Node.js
• Express
• IBM Watson Assistant
• MongoDB

Salesforce-CloudCraze e-Commerce Platform

2018-01 to 2018-08 | Accenture | Accenture internal / enterprise clients (various) | completed

Roles

• QA Engineer
• Team Lead
• Full Stack Developer

Domains

• E-commerce management systems (not a storefront)

Responsibilities

• QA: updated documentation, wrote user stories, manual testing, scenarios, regression tests (Selenium).
• Team lead/UI dev: organized work for a team of 4 devs, task management, recruitment, implemented UX/UI redesign.
• Salesforce dev: backend operations.

Stack / technologies

• Salesforce
• CloudCraze
• JavaScript
• Bootstrap
• Selenium

Bring Data to Life

2016-07 to 2017-12 | CodeConcept | completed

Roles

• QA Engineer
• Software Development Engineer in Test

Domains

• Automation testing frameworks

Responsibilities

• QA: created test cases, maintained them in TestLink; prepared analysis models used during testing.
• Automation: UI automation tests (Ranorex 6.1 in C#), NUnit tests.

Stack / technologies

• .NET / C#
• Selenium

RPA Application Developer

2015-11 to 2016-05 | Confronter | completed

Roles

• Backend Engineer

Domains

• RPA / desktop automation

Responsibilities

• Fixed bugs in an existing app and evolved it into an RPA application.
• Rewrote from WinForms to WPF (MVVM), ensured Windows XP compatibility.
• Built JSON-instructions engine converting patterns into Selenium commands.
• Maintained XPath handlers; wrote unit tests (NUnit); integrated with SOAP APIs.

Stack / technologies

• .NET / C#
• WPF
• Selenium