08/11/2026 updated

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Senior Frontend Engineer - Angular

Cluj, Romania
Worldwide
B.Sc. Informatics
Cluj, Romania
Worldwide
B.Sc. Informatics

Profile attachments

Sergiu_Tigan_Resume_2026.pdf

JavaScriptApple XcodeCascading Style Sheets (CSS)PostgreSQLNode.jsAngular 2+IonicNext.jsTypeScriptAngular MaterialGoogle FirebaseBackendSAP FioriKotlinFull Stack DevelopmentSAP UI5GraphQLFront End Software DevelopmentNestJSAngular Ui
Angular & Frontend Architecture
Over 8 years of specialization in Angular (versions 8-18), including micro-frontend architectures with Module Federation, Nx monorepos, white-label and multi-brand platforms, as well as NgRx state management (Store, Effects, Entity).

TypeScript & Modern JavaScript
Deep expertise in TypeScript and JavaScript (ES2023), used across all professional engagements to build scalable, maintainable, and production-ready frontend applications in regulated and high-traffic industries.

UI Development & Styling
Extensive experience with Angular Material, Tailwind, Bootstrap, Ag-Grid, Highcharts, ngx-datatable, Figma, responsive design, accessibility (WCAG), Storybook, PWA, and i18n for building modern, accessible user interfaces.

Testing & Quality Assurance
Proficiency in Jasmine, Karma, Jest, Playwright, unit, integration and e2e testing, as well as code review practices including automated pre-PR Angular code-review pipelines.

Backend & Data Integration
Solid experience working with REST APIs, GraphQL, Firebase, Supabase, and PostgreSQL to integrate frontend applications with backend services.

Tooling & DevOps
Hands-on experience with Git, CI/CD pipelines, GitHub CLI, Azure DevOps, Agile/Scrum methodologies, and performance optimization techniques.

React & Next.js
Practical experience with React and Next.js, applied in own SaaS products such as PULSE (AI fitness platform) and HORAE (multi-tenant production platform).

Node.js & NestJS
Backend development experience using Node.js and NestJS, applied in own product development including food-ordering and multi-tenant platforms.

SAP Technologies
Early career experience with SAP ABAP, S/4HANA, SAPUI5, and SAP Fiori, gained during an internship at Draexlmaier Group in Germany.

Experience

Professional experience10+ years
Freelancer since2020

Languages

GermanGoodEnglishFluentRomanianNative speaker

Project history

Senior Frontend Engineer

Confidential Client
Developing the core frontend of a white-label consumer platform serving 10 brands across regulated European markets in a modular Angular/NgRx architecture. Built a custom theming system and automated pre-PR Angular code-review pipeline cutting review turnaround by ~80%.

Independent Frontend Engineer - Contract

Next Level Tech (own company)
Senior Angular contractor delivering for clients across automotive, banking, compliance, and regulated consumer platforms in concurrent and sequential Agile/Scrum engagements.

Founder & Solo Developer

Next Level Tech (own product - PULSE)
Designed, built, shipped and operated solo an AI fitness platform using Next.js and Firebase. Features include trainer-client workflows, AI-driven workout generation, 70+ exercise library, and white-label branding.

Founder & Solo Developer

Next Level Tech (own product - DOBBY)
Built and operated a food-ordering platform with ~250 daily active users using Angular, Node.js, and Supabase. Migrated SQLite to PostgreSQL to support growth with real-time order updates.

Founder & Solo Developer

Next Level Tech (own product - HORAE)
Built a multi-tenant production platform using Next.js, NestJS, and PostgreSQL for recipes, FIFO stock, and orders, serving web, iOS and Android clients with white-label per tenant.

Senior Frontend Engineer

Exadel - Compliance Cockpit
Built the Campaigns module frontend of an enterprise regulatory-compliance platform as an Angular 18 micro-frontend with Module Federation in an Nx monorepo. Designed a multi-step campaign wizard and built interactive dashboards with real-time completion tracking using Highcharts.

Sole Frontend Engineer

MTD Technology
Sole frontend engineer on a mission-critical software-update management tool used across five Volkswagen Group brands. Built data-dense UI with Ag-Grid, ngx-datatable, Angular Material and Bootstrap, and led the full frontend handover.

Frontend Engineer

SHE Group
Delivered a solution for managing tax reports, integrating closely with backend teams. Used Nx to manage multiple frontend applications in a monorepo and designed reusable Angular Material and vanilla SCSS components.

Frontend Engineer

Be | Shaping the Future
Built financial applications for a leading Romanian bank, including a financial-planning tool and a drag-and-drop PDF generator. Developed modern, responsive UIs and partnered with backend and business teams.

Frontend Engineer

Wirtek Romania
Led frontend development of a green-energy application within a 10-person team. Integrated closely with backend via Azure DevOps and mentored junior developers.

Frontend Engineer

Fabrit Global
Built and maintained the frontend of a sports arena booking platform using Angular 8/5 and Azure DevOps, optimizing performance across mobile and desktop.

Frontend Engineer

P4B Group
Led the frontend of an Angular 12 product with a PHP backend, coordinating two other frontend developers and enforcing code consistency, performance and clean integration.

Junior Frontend Developer

msg systems Romania
Built a medical/insurance application for AOK Plus using Angular 8, SCSS, and SAP Spartacus. Led the migration to the production version of Spartacus, improved load times and ensured cross-browser compatibility.

Backend Developer Intern

Draexlmaier Group
SAP ABAP training; built front- and back-end features for a retail app on S/4HANA, SAPUI5 and SAP Fiori in Germany.

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