Tomaš L.-Senior Frontend Engineer
Check rate
Experience
Full-stack web developer (freelance)
Self-employed
Akmens Materija — akmensmaterija.lt
Premium flexible-stone catalog for architects and designers. Owned design, build, and deploy end to end.
Designed and shipped a Lithuanian product catalog (Astro, React, Sanity, Cloudflare)
Replaced a static PDF with a searchable, CMS-editable site (families, products, color variants, high-res textures)
Enabled the client to update catalog content without a developer; fast, SEO-ready pages on the edge
Skills: Astro, React, Tailwind, Sanity CMS, Cloudflare Pages, SEO, UI/UX, headless CMS, SSG
Front-end Developer
Visma Tech
- Frontend development on a multi-tenant case management platform for the Dutch public sector
- Engineered and maintained a large-scale SaaS platform, focusing on codebase refactoring, performance optimization, and architectural scalability
- Re-architected legacy large-scale AngularJS application into modern Angular SPA, rebuilt Angular 21+, Signals, Vite, and Tailwind CSS 4.
- Developed a component design system with enforced layer boundaries (Figma to Storybook)
- Ensured WCAG 2.2 AA compliance and frontend security (strict CSP, input sanitization, dependency audits)
- Scrum Master for frontend team: led retrospectives, planning, refinements, and dailies
- Authored and published a custom extension for the Azure DevOps Marketplace "Sprint Backlog Organizer"
Tech stack: Angular, TypeScript, RxJS, Tailwind CSS, Jest, Vite, Vitest, Nx, Storybook, Zod, Azure DevOps.
Research Assistant
Baltic Institute of Advanced Technology
- Built a customer churn prediction model in Python
- Queried and analyzed data from BigQuery
- Performed data cleaning and preprocessing
- Performed feature engineering, evaluated multiple classifiers (e.g., Random Forest, XGBoost), and tuned hyperparameters via grid/random search
Tech stack: Python, BigQuery, Pandas, NumPy, scikit-learn, Matplotlib, Seaborn, LaTeX.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology and Government and Administration.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Project Management, Business Intelligence, and Research and Development.
Summary
Senior frontend engineer with 5+ years of experience building and architecting complex, large-scale SaaS environments. Experienced in developing complex user interfaces, integrating APIs, and creating scalable frontend architectures. Expert in Angular (TypeScript) with background in Python, machine learning and generative AI workflows (LangGraph, LangChain, Agents SDK).
Skills
- Angular 21+
- Astro + React
- Javascript/Typescript
- Python (Project Experience)
- Core Web Vitals Performance
- Wcag 2.2 Aa Compliance
- Strict Csp Compliance
- Multi-Tenant Architectures
- Algorithms & Data Structures
- Css/Tailwind 4
- Vitest/Jest
- Storybook/Design Systems
- Agents Sdk/Langgraph
- Ai Tooling (Cursor/Copilot)
Languages
Education
Vilnius Gediminas Technical University (Vilnius Tech)
Bachelor Degree of Informatics · Engineering Informatics · Vilnius, Lithuania
Certifications & licenses
Scrum Alliance
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Tomaš is based in Vilnius, Lithuania and prefers 100% remote projects.
Tomaš speaks the following languages: Lithuanian (Native), Russian (Native), English (Advanced), Polish (Intermediate).
Tomaš has at least 7 years of experience. During this time, Tomaš has worked in at least 3 different roles and for 3 different companies. The average length of individual experience is 2 years and 2 months. Note that Tomaš may not have shared all experience and actually has more experience.
Based on recent experience, Tomaš would be well-suited for roles such as: Full-stack web developer (freelance), Front-end Developer, Research Assistant.
Tomaš's most recent position is Full-stack web developer (freelance) at Self-employed.
In recent years, Tomaš has worked for Self-employed and Visma Tech.
Tomaš is most experienced in industries like Information Technology, Government and Administration, and Construction. Tomaš also has some experience in Manufacturing.
Tomaš is most experienced in business areas like Information Technology, Product Development, and Project Management. Tomaš also has some experience in Business Intelligence and Research and Development.
Tomaš has recently worked in industries like Information Technology, Government and Administration, and Construction.
Tomaš has recently worked in business areas like Information Technology, Product Development, and Project Management.
Tomaš holds a Bachelor in Engineering Informatics from Vilnius Gediminas Technical University (Vilnius Tech).
Tomaš has 1 certificate: Certified ScrumMaster (CSM).
Tomaš is immediately available part-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 26 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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