Front-end Tech Lead (React.js) in DiFFreight LLC

Hello! DiFFreight is an international logistics company looking for an experiencedFront-end Tech Lead. We are engaged in international transportation in the direction of China Ukraine, Ukraine - America, Ukraine - Europe. We are engaged in international transportation (China, USA, Europe) and are actively expanding our IT department

You will be responsible for the technical condition and development of the Front-end part of the company's key products:

• Personal account of the client

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Company website and Landings

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Technical skills:

• In-depth knowledge of React 18, TypeScript, React Router 6, React Query (Tanstack).

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Experience building quality: ESLint, Husky + lint-staged.

Understanding CI/CD principlestions), work with GitFlow and Pull Request review.

• Ability to work in Jira, conduct assessments, manage sprints and risks.

• 5 years of experience as a Front-end Developer, at least 1-2 years of experience as a Team Lead/Senior Developer responsibilities.

Architectural thinking:

• Ability to design scalable FE architecture

• Understanding interaction with the backend (AdonisJS / NestJS, PostgreSQL, Redis, S3).

Leadership skills style="font-weight: 400; font-style: normal; text-decoration: none">Ability to train and motivate a team

Will be a plus:

• Optimization of Vite bundles, experience with React Profiler / Web Vitals.

• Multilingual projects (i18n).

• E2E testing and integrations.

  Technical leadership (~80%)

  • Responsible for the development and support of the Front-end architecture of key products (ERP, Personal account of the client, Site), ensuring their stability and scalability according to the technical strategy

  • Maintain UI system based on Tailwind CSS + Ant Design, coordinating components with Design Lead.

  • Conduct code reviews, ensure the quality and consistency of the code in the team.

  • Design and implement testing strategy (Unit / Integration / E2E).

  • Collaborate with Back-end Lead on APIs, Socket.IO events, data schemas and versioning.

  • Configure CI/CD (GitHub Actions) for build/test/lint/preview/release processes.

  • Together with STO, analyze performance, optimize interfaces, coordinate changes.

  • Technical Accountability: Work directly under the CTO, managing the technical development of products.

  Team and processes (~20%)

  • Leadership and management of a small team of Front-end developers (2-4 people).

  • Team work planning, decomposition of complex tasks and their distribution among developers.

  • Close cooperation with Product/Project Manager, UI/UX designer and Back-end Team Lead, CTO to coordinate technical solutions and requirements.

  • Mentoring and development of technical skills of team members

  • Estimates, risks, dependencies - together with PM/BA; sprints - in Jira, work through Pull Requests.

  • Developer onboarding and development; participation in hiring (technical interviews).

  • Regular synchronization with Design/QA/BE leaders for agreed delivery.

  • Conducting technical reviews with members of the Front-end team with the aim of providing an expert assessment of development levels and determining development vectors (professional courses, etc.).

  How we work (processes)

  • GitFlow + Jira + Pull Requests (mandatory code review, protected branches, status checks).

  • Code standards: ESLint, Prettier, Stylelint; Husky + lint-staged (pre-commit).

  • CI/CD: GitHub Actions (build/test/lint/preview/prod).

  • Documentation in repositories (README, short ADRs for significant technical solutions).

  Technology stack (Front-end)

  • React 18, TypeScript, Vite.

  • Routing: React Router 6.

  • Data/state: @tanstack/react-query, Zustand (if needed), dayjs/date-fns.

  • Forms/validation: Formik + Yup (knowledge of react-hook-form is a plus).

  • Drag&Drop: @dnd-kit (core/sortable/modifiers).

  • UI/стилі: Tailwind CSS, Ant Design (узгодження бібліотек/темізації); vite-plugin-svgr.

  • Контент/редагування: TinyMCE (@tinymce/tinymce-react).

  • Мережа/утиліти: Axios, clsx, react-hot-toast, react-dropzone, sanitize-html, i18next/react-i18next, socket.io-client, uuid.

  • Якість: ESLint (+ react-hooks, import), Prettier, Stylelint; Husky + lint-staged.

  Короткий технічний контекст (Back-end & мікросервіси)

  • Back-end (основний): AdonisJS (Node.js, TypeScript), PostgreSQL, Redis, S3 (AWS), Socket.IO, Lucid ORM, JWT/Auth, Mail, Swagger, Bull-queue, логування (pino). Скрипти: ace serve --watch, build, queue, тестування.

  • Мікросервіс “Чати”: NestJS 11, TypeORM, PostgreSQL, Socket.IO, Swagger, Terminus (health), Helmet, class-validator/transformer; міграції, Jest-тести, CI/CD.

  • FE Lead узгоджує DTO/контракти/події з BE-стороною, працює в єдиній схемі версіонування клієнтських API.

  
  

  Ми пропонуємо:

  • Зручні умови роботи, комфортний офіс в Києві, проспект Академіка Корольова 1, БорщаHivka, Svyatoshynsky district;

  • Working schedule from MON - FRI from 10:00 to 18:00;

  • Work in the officeRemote considering!!!;

  • Probationary period 1 month with full salary and presence in the office every day

  • Decent salary: UAH 80,000; font-style: normal; text-decoration: none">, according to the results of the interview;
  • Experience in full-stack development; Dev-ops, Backend, UI/UX, what;

  • If necessary, we provide courses for training basic and additional skills;

  • Thematic conferences;

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  If all of the above matches your knowledge, skills and abilities, do not delay and send us your resume! See you soon!