Jobs JavaScript / Front-End

About Us

Smart Capital Center is the only end-to-end, AI-powered platform for CRE investment and financial management. Purpose-built to power real-time underwriting, asset management, and portfolio analysis, the platform combines live data intelligence, workflow automation, and AI-driven insights to accelerate decision-making, reduce risk, and spot opportunities others miss.

Operating at the intersection of Generative AI, finance, and real estate, we build technology that digitizes, automates, and delivers deep insight into every stage of real estate investment and financing transactions.

Our clients include some of the largest real estate and financial institutions in the U.S., including JLL, Pacific Life Insurance Company, and KeyBank. We are a lean, high-performance team building category-defining technology in a $17 trillion industry.

The Opportunity

We are looking for a Team Lead – Senior Frontend Engineer to drive the architecture, quality, and evolution of our frontend systems.

This is a hands-on leadership role. You will guide frontend development standards, mentor engineers, collaborate closely with Product and UX teams, and deliver high-performance, scalable, and elegant user interfaces that power complex financial workflows.

This role operates in an AI-augmented development environment, where engineers leverage modern AI code agents (such as Cursor, Claude Code, Windsurf, etc.) to accelerate development, improve code quality, and increase engineering productivity.

If you thrive in high-ownership environments and enjoy building sophisticated, data-driven platforms, this role is for you.

What You Will Do

Technical Leadership

-Lead frontend architecture decisions and establish engineering best practices
-Mentor and guide frontend engineers through code reviews and design discussions
-Ensure scalability, maintainability, and performance across the platform
-Drive high-velocity feature development while maintaining high code quality
-Establish and promote effective use of AI code agents and AI-assisted engineering tools across the frontend team

Product & UX Collaboration

-Work closely with product specialists and UX engineers to design and deliver a state-of-the-art UI
-Translate complex financial workflows into intuitive and elegant user experiences
-Maintain consistent UI/UX standards across the platform

Frontend Development

-Develop usable, performant, and maintainable frontend applications
-Contribute to component-based development in ReactJS using Redux/MobX
-Handle API integration and API payload preparation/processing
-Optimize application performance and ensure responsive, data-rich interfaces
-Use AI code assistants and code agents (Cursor, Claude Code, Windsurf, etc.) to accelerate development, refactoring, debugging, and code quality improvements

Requirements and Qualifications

-5+ years of successful web development experience
-2+ years in a senior or technical leadership capacity
-Strong programming skills in TypeScript, JavaScript (ES5/ES6), CSS, and HTML
-Deep experience with ReactJS; familiarity with Redux/Flux/MobX
-Experience designing scalable frontend architecture
-Strong problem-solving and system design skills
-Proficiency with Git or comparable version control systems
-Experience working in remote SCRUM teams (daily standups, grooming, sprint planning)
-Hands-on experience using AI-assisted development tools or AI code agents (e.g., Cursor, Claude Code, Windsurf, Copilot, etc.) to improve development velocity and code quality
-Ability to effectively guide teams in adopting AI-augmented engineering workflows
-Strong ownership mindset and ability to lead by example
-English proficiency: Beginner or higher

Nice to Have

-Strong sense of frontend design and UX
-Experience with Webpack, Gulp, or similar build tools
-Familiarity with SASS/SCSS
-Experience in data visualization using ECharts, D3.js, or similar
-Knowledge of Google Maps API or Mapbox
-Experience with testing frameworks such as Jest
-Familiarity with analytics and data-driven applications
-Experience with AI-assisted coding environments and AI engineering workflows
-Experience in high-velocity feature development environments
-Proactive, high-energy, competitive, and creative mindset
-Strong drive for continuous improvement

Benefits of Joining Our Team

-Be at the forefront of innovation in a $17 trillion industry and play a pivotal role in shaping its future

-Interact with leading fintech and real estate companies and the country’s largest financial institutions, assisting them in digital transformation

-Contribute to a product revolutionizing the U.S. real estate industry and trusted by prominent financial institutions

-Flexible work arrangement

-Collaborate with an efficient management team with no bureaucratic hurdles

-Play a vital role as a member of a lean, highly professional team

-Competitive compensation and benefits

-Generous paid time off

Visit us at: https://smartcapitalcenter.com

We are building a digital learning platform for maritime education and training.

This is an early-stage project focused on creating a modern learning experience for maritime professionals worldwide.

We are looking for a Frontend Engineer (mid level) to join our early team.

What you’ll work on:

• student-facing UI and learning experience 
• integration with LMS platform (openEdX) 
• building clean, modern and practical user journeys 
• collaboration with backend and vendor teams 

Tech:

• React / Next.js 
• REST APIs 
• modern web UI development 

What we’re looking for:

• 2+ years of frontend development experience 
• solid knowledge of React 
• ability to build clear and user-friendly interfaces 
• experience working with APIs 

What we offer:

• greenfield-style product work 
• flexible collaboration model (part-time possible) 
• real influence on product decisions 
• opportunity to grow with the platform 

If this sounds like something you’d be interested in discussing, please share your CV and feel free to reach out.
Let's connect and text here if you'd like to chat or have any questions!

We are a U.S.-based fintech startup operating in the investment and financial services space. Our distributed teams work across Poland, the United States, and Ireland, collaborating on technology-driven solutions related to stocks and investments.

Security, compliance, and the responsible handling of sensitive financial data are central to how we operate, as we build scalable products in a regulated environment.

Responsibilities

Design and develop full-stack applications using React.
- Build REST APIs following microservice standards.
- Implement user interfaces using Nexus design system.
- Refactor legacy components for modernization and performance. - Collaborate with architects to define scalable solutions.

- Participate in code reviews, testing, and sprint ceremonies.
- Optimize application reliability, performance, and maintainability. 

Skills
-  It will be beneficial if you have experience in Java, Spring Boot, REST API development. (4+ years of commercial experience)
- Expertise in React, JavaScript/TypeScript, UI state management.
- Experience with Nexus design system or similar component systems. - Understanding of cloud-native development and containerization.
- Knowledge of CI/CD, Git workflows, automated testing.
- Familiarity with security best practices for APIs.
- Good understanding of system integration patterns.

Peachy builds digital commerce experiences that drive results.

We’re a design and engineering partner for brands that expect performance. We specialize in high-converting, fully custom websites, apps, and commerce platforms. Everything we create is built to launch fast, scale easily, and stay ahead.

We’re not a marketing agency. We’re not a branding studio. We don’t separate strategy from execution or visuals from outcomes. Our work lives where product thinking, creative direction, and revenue meet.

Every project is shaped by data and built with conversion in mind. Our process combines UX, CRO, data driven design, and development into one tight, focused system. This is how we help brands grow faster, sell more, and outpace the competition.

What we build becomes an advantage. Our websites and platforms provide brands with speed, control, and a foundation to scale their marketing, launch new ideas, and grow without friction.

We are looking for a Shopify Developer who is confident working with complex e-commerce systems and understands not only technical implementation, but also the business logic behind what we build.

Requirements:

5+ years of experience in Shopify development (theme development / custom storefront work)
Hands-on experience with subscription management systems (Recharge or similar tools)
Experience working with Rebuy or comparable cart/personalization tools
Understanding of Klaviyo at the level of custom metrics and event-based tracking
Experience with bundling logic and product grouping systems
Strong understanding of e-commerce business logic (conversion, AOV, retention, LTV)
Ability to distinguish between business value and technical implementation
Comfort working in a dynamic environment with changing priorities
Strong communication skills and ownership mindset
 

Responsibilities:

Develop and maintain Shopify storefronts (themes, custom sections, cart & checkout extensions)
Integrate and manage subscription systems (e.g. Recharge and other subscription management apps)
Work with custom cart solutions (e.g. Rebuy and similar tools), including cart drawers and dynamic widgets
Implement bundling logic and product grouping across cart and checkout flows
Set up and maintain Klaviyo integrations, including custom metrics, event tracking, and segmentation logic
Build and support event tracking flows for analytics and marketing automation
Improve storefront performance and user experience (conversion-focused optimization)
Collaborate closely with designers, PMs, and stakeholders in a fast-paced US client environment
 

Work conditions:

Work with high-growth US e-commerce brands
Complex, product-driven challenges (not just “Shopify builds”)
Learning & growth plan supported by AI-powered tools and workflows
Fast, lean team with minimal bureaucracy
Fully remote setup
Real impact on product and technical decisions

At Crunch-IS, we don't just build technology — we create an environment where talented people can grow, develop innovative solutions, and truly feel their impact. We are a global team with a strong engineering culture, open communication, and genuine passion for what we do. No unnecessary hierarchy or bureaucracy — just professionals collaborating on meaningful and exciting challenges.

Crunch-IS is a trusted software development and technology consulting partner specializing in Artificial Intelligence, Machine Learning, Cloud/DevOps transformation, and Data Analytics. Since 2018, we've partnered with startups, fast-growing companies, and global enterprises across the USA and UK, helping them solve complex challenges in industries such as Healthcare, FinTech, Logistics, and Oil & Gas.
 

We're looking for a 3D Frontend Engineer to join a team building large-scale point cloud rendering pipelines, interactive 3D scenes, and custom WebGL-based viewer tooling — working deep in the Three.js / React Three Fiber / Potree stack.
 

Responsibilities:

— Build and optimize large-scale point cloud rendering pipelines using Potree
— Develop interactive 3D scene experiences with Three.js and React Three Fiber
— Implement custom viewer tooling on top of WebGL — Ensure performance and stability across complex 3D rendering scenarios
— Collaborate with engineering teams on architecture and feature delivery
 

Requirements:

— Strong hands-on experience with Three.js and React Three Fiber
— Experience working with point cloud data and Potree (or similar tools)
— Solid understanding of WebGL and 3D rendering fundamentals
— Ability to optimize performance for large-scale 3D scenes
— Experience in a product or engineering-focused environment
 

Nice to have:

— Experience with custom shader development (GLSL) — Familiarity with geospatial or LiDAR data formats — Background in building viewer or inspection tooling

We are building a talent pool of Web3 Frontend Developers for upcoming outstaff projects with international clients 🚀.
 

This is part of our candidate pipeline — there is no specific project at the moment, but once a suitable opportunity becomes available, you'll be matched based on your skills and experience.
 

We're looking for frontend developers who can build dApp interfaces for EVM and Solana products — from wallet connections and transaction flows to DeFi dashboards and protocol UIs.

 

🛠️ Key Responsibilities
 

🔹 Build dApp interfaces using React / Next.js

🔹 Integrate wallets using wagmi, WalletConnect, and wallet adapter libraries

🔹 Work with viem / ethers.js for on-chain reads and writes (EVM)

🔹 Handle async blockchain state with React Query / TanStack Query

🔹 Manage application state using Redux or Zustand

🔹 Build intuitive, reliable UIs for DeFi, NFT, and protocol products

🔹 Collaborate closely with smart contract and backend developers

🔹 Communicate directly with international clients in English

 

📋 Requirements
 

🔹 2+ years of commercial experience with React / Next.js

🔹 Hands-on experience building dApp interfaces (wallet connect, on-chain data, transactions)

🔹 Solid knowledge of wagmi and WalletConnect integration

🔹 Proficiency with React Query / TanStack Query

🔹 Experience with Redux or Zustand

🔹 Understanding of EVM basics (transactions, gas, contract reads/writes)

🔹 Experience with real-time UI reactivity — seamless UI updates after on-chain actions (optimistic updates, event subscriptions, polling)

🔹 Basic understanding of the Solana ecosystem (accounts, transactions, wallet model)

🔹 English: B2+

🔹 Ability to work independently

✨ Nice-to-Haves

🔹 Experience building Solana dApp interfaces (wallet adapter, on-chain reads, transaction flows)

🔹 Understanding of DeFi UX patterns (slippage, gas estimation, token approval flows)

🔹 Experience with TypeScript in large-scale production React codebases

🔹 Exposure to NFT marketplace or on-chain gaming UI

🌱 Why Join Our Talent Pool?

🔹 Real dApp Engineering — interfaces for real users and real protocols

🔹 International Clients — teams across Europe and North America

🔹 Remote & Flexible — outstaff format, async-friendly

🔹 Blockchain-First Team — we speak the same language

🔹 Fast Matching — when the right project appears, we move quickly

✨ Why This Is a Great Opportunity

🔹 Real-world exposure — every project is different: different chains, different protocols, different challenges

🔹 Outstaff done right — we stay involved, support you throughout the engagement, and match you only where your stack truly fits

🔹 Keep growing — instead of running out of things to do at one company, you move to the next challenge

📬 What Happens After You Apply

🔹 Our team reviews your profile within a few business days

🔹 If there's a good fit, we'll schedule a brief intro call — to learn about your background, stack, and what you're looking for

🔹 After the call, you'll join our talent pool and we'll reach out proactively once a matching project comes up

⚠️ Important

🔹 This is a talent pool position (pipeline)

🔹 No specific project at this moment

🔹 You'll be contacted once a suitable opportunity becomes available

At FuturiX Solutions, we connect skilled blockchain engineers with international Web3 clients — matching you to projects where your expertise matters most 🌐⚙️

The product we are working on is one of TOP-3 navigation systems, complex web-services and other solutions related to it. The web and mobile apps handle information at massive scale and extend well beyond the search giving people and companies a lot of new useful options.
 

Responsibilities:

• Analyzing requirements for new product features and services
• Hands-on development based on the requirements
• Covering the code with unit tests
• Improving existing software and fixing bugs
• Creating and maintaining code documentation

• Communicating with stakeholders and distributed teams of the product

   

Requirements:

• Location in Warsaw
• 5+ years of hands-on work experience as a Fullstack/Frontend developer
• Hands-on experience in implementing pixel-perfect designs over HTML/CSS
• Strong JavaScript and TypeScript skills
• Hands-on experience with more than one leading frontend framework (our focus is React, but it’s preferred you also have experience with either Angular, Vue, Ember.js, Polymer, etc)
• Strong hands-on skills with frontend toolkits (Gulp, Webpack, Karma, Jasmine, etc.)
• Experience with distributed version control systems (Git, Mercurial, Fossil, etc.)
• Upper-Intermediate English skills, or higher (both written and spoken)
• Experience in working in a Linux-based server environment
• Ability to learn new technologies

• Passion for products and users

   

Nice to have:

• Experience with at least one dynamic language implementation of a backend technology (Node.js, Python, Ruby)
• Experience with compiled, statically typed server technologies (Java, Go)
• Experience in ES6, TypeScript, CoffeeScript, React, and Redux.
• Experience with building, maintaining, and optimizing responsive web apps
• Hands-on experience in cloud technologies
• Experience developing high-load/high-traffic user-facing software
• Hands-on experience in writing unit tests
• Solid Linux/Unix skills
• Experience with mobile-specific sites, and mobile-web/native app integrations
• Experience in setting up and continuous improvement of the dev environment
• Experience in setting up and continuous improvement of a multi-stage production environment
• Experience working on a distributed team (not all in one physical location)

• Open source contributions

   

We offer:

• Opportunities to develop in various areas;
• Compensation package (20 paid vacation days, paid sick leave);
• Flexible working hours;
• Medical Insurance;
• English courses with a native speaker, yoga (Zoom);
• Paid tech training and other activities for professional growth;
• Hybrid work mode (∼3 days in the office);
• International business trips

• Comfortable office.

   

If your qualifications and experience match the requirements of the position, our recruitment team will reach out to you in a week maximum. Please rest assured that we carefully consider each candidate, but due to the amount of applications the review and further processing of your candidacy may take some time.

About the Role

Our client is seeking a talented and versatile Generalist to join their dynamic team, focusing on playable ads. This role is perfect for someone who thrives in a fast-paced environment, enjoys a mix of creative and technical challenges, and is passionate about mobile gaming. The ideal candidate will be responsible for the entire lifecycle of playable ads, from conceptualization and design to development, optimization, and analysis. This is a unique opportunity to make a significant impact on user acquisition strategies and contribute to the growth of a leading mobile gaming company.

Responsibilities

• Conceptualize and design engaging playable ad experiences that align with game mechanics and marketing goals.
• Develop playable ads using HTML5, JavaScript, CSS, and other relevant technologies.
• Collaborate with game designers, artists, and marketing teams to ensure brand consistency and optimal performance.
• Implement A/B tests and analyze data to identify areas for improvement and optimize ad performance.
• Stay up-to-date with industry trends and best practices in playable ad development and mobile marketing.
• Manage multiple projects simultaneously, ensuring timely delivery and high-quality output.
• Troubleshoot and debug playable ads across various platforms and ad networks.

• Contribute to the overall creative strategy for user acquisition campaigns.

   

Requirements

• Proven experience in developing and optimizing playable ads for mobile games.
• Strong proficiency in HTML5, JavaScript, and CSS.
• Experience with game development tools like Unity is a plus.
• Solid understanding of mobile marketing principles and user acquisition strategies.
• Ability to analyze data and translate insights into actionable optimizations.
• Excellent communication and collaboration skills.
• Creative mindset with a keen eye for detail and user experience.
• Proficiency in Adobe Creative Suite (Photoshop, Illustrator) and Figma is a plus.

• Experience working in an Agile environment.

   

About the Company

Our client is a leading mobile gaming company known for its innovative and engaging titles. They are committed to creating immersive experiences for players worldwide and are constantly pushing the boundaries of mobile entertainment. The company fosters a collaborative and creative work environment, encouraging employees to take ownership of their projects and contribute to a shared vision of success.

🌟 About SelfInspection

SelfInspection is an AI-driven vehicle inspection platform helping leasing companies, fleets, and financial institutions automate damage assessment and reporting.

We’re modernizing our frontend architecture and building scalable, modular React applications that power real-time inspection workflows and complex admin systems.

We’re looking for a Senior Frontend Engineer who can take ownership of the product experience — not just build screens.

🧠 What You’ll Do

• Build scalable frontend applications using React
• Work with Webpack-based micro-frontend architecture
• Implement state management using MobX
• Build SSR and performance-optimized pages using Next.js
• Contribute to and evolve our Design System
• Translate product requirements into clean, scalable UI architecture
• Own features end-to-end (from concept to production)
• Improve performance, bundle size, and maintainability
• Collaborate closely with backend, QA, AI, and product teams
• Help shape frontend architecture decisions

🏗 Tech Stack

• React (5+ years required)
• Next.js
• Webpack
• MobX
• TypeScript
• Design Systems / Component Libraries
• REST APIs
• AWS environment

✅ Requirements

• 5+ years of professional frontend experience
• Strong expertise in React
• Deep understanding of Webpack
• Experience with MobX or advanced state management
• Experience building or maintaining Design Systems
• Strong understanding of performance optimization
• Ability to work independently in a fast-paced startup environment
• Strong ownership mindset
• Product-oriented thinking (not just task execution)

💎 Nice to Have

• Experience with micro-frontends
• Experience in SaaS or B2B platforms
• Experience building complex dashboards or workflow-based UIs
• Strong UX sensitivity and attention to detail
• Experience improving legacy frontend systems

🔥 Who We’re Looking For

We want someone who:

• Is highly motivated and driven
• Thrives in fast-paced environments
• Takes responsibility for the product, not just the code
• Can identify problems and propose solutions
• Thinks long-term about maintainability and scalability
• Cares about quality

💼 What We Offer

• Ownership over meaningful product areas
• Influence on architecture decisions
• Startup speed + real customers
• Flexible work environment
• Competitive compensation

Senior Angular (v18+) and TypeScript Developer needed. Join the team for a UK-based healthcare company that enables remote patient monitoring, clinical research, and personalized healthcare.

What You’ll Do:

• Design and develop front-end features using Angular and TypeScript
• Contribute to front-end architecture decisions, ensuring scalability, performance, maintainability, and long-term code quality
• Work closely with UX/UI designers, product owners, backend engineers, and other stakeholders to shape product solutions
• Review code, provide technical guidance, and support other engineers in improving solution quality
• Identify technical risks, propose improvements, and help reduce technical debt
• Contribute to frontend standards, reusable components, and engineering documentation

What We’re Looking For:

• 5+ years of experience in frontend development, with strong hands-on expertise in Angular and TypeScript
• Deep knowledge of Angular v18+ and modern Angular patterns
• Strong experience with RxJS and reactive programming patterns
• Solid understanding of scalable frontend architecture, modularization, reusable components, and maintainable code structure
• Experience with Angular Material, SCSS/CSS3, responsive design, and cross-browser compatibility
• Strong knowledge of RESTful APIs, HTTP, authentication flows, and web application security principles
• Experience with unit and integration testing using tools such as Karma, Jasmine, Jest, or similar frameworks
• Strong Git experience and confidence working in collaborative development workflows
• Ability to mentor other developers, provide thoughtful code reviews, and raise engineering quality across the team

Nice to Have:
• Experience with performance optimization tools and techniques such as Lighthouse, lazy loading, bundle optimization, and runtime performance profiling
• Familiarity with CI/CD pipelines and deployment automation
• Exposure to backend development or full-stack experience
• Knowledge of accessibility standards (WCAG) and testing frameworks like karma

• Experience working with design systems or shared component libraries

About the client

Our client is looking for a hands-on Principal Integration Engineer & Architect to lead the design, evolution, and execution of our core data integration ecosystem. This role is built specifically for an elite technical leader who loves mapping out highly reliable distributed architectures but is driven by a strong desire to stay close to the metal- allocating approximately 70% of their time to writing mission-critical production code, core libraries, and internal SDKs, and 30% to high-level architectural design, API contract governance, and technical mentorship. 
Our client is a venture-backed AI-powered platform built specifically for consumer brands. It connects to sources like banks, POS systems, and advertising platforms to deliver daily profit & loss snapshots, cash flow plans, and peer benchmarking - all in real time. With integrations across finance, e‑commerce, and marketing tools, Iris provides the clarity and automation brands need to grow confidently 
 

What You’ll Do
 

• Write Foundational Code (70% Focus): Maintain a heavy, hands-on presence in the codebase. Author core integration libraries, internal SDKs, and high-performance data transformation engines in JavaScript (Node.js/NestJS) and Python to establish gold standards for the engineering team.
• Architect for Scale (30% Focus): Design and evolve a robust, multi-tenant integration architecture capable of handling data streams from hundreds of distinct third-party platforms concurrently.
• Build for Resilience: Establish bulletproof integration patterns to successfully navigate external API limitations, handling advanced OAuth state machines, dynamic webhook processing, elegant rate-limiting, sophisticated retries, and distributed tracing.
• Govern API & Data Integrity: Define and enforce strict schema validations, transaction boundaries, and end-to-end data transformation standards to guarantee accurate real-time financial reporting.

• Technical Leadership & Mentorship: Act as an elite technical sounding board for the engineering organization. Conduct comprehensive architecture reviews, upskill senior engineers, and champion modern DevOps, testing, and deployment workflows.Design, implement, and maintain core backend services using JavaScript and Python.

  
   

What We’re Looking For

• Deep Industry Experience: 8+ years of professional software engineering experience, with a proven history of designing, deploying, and maintaining high-throughput, distributed back-end integration solutions.
• Polyglot Mastery: Highly proficient in both JavaScript/TypeScript (Node.js, NestJS) and Python, knowing exactly when and where to leverage each language's native strengths.
• Advanced Integration Expertise: Extensively experienced interfacing with chaotic external REST/GraphQL APIs, webhooks, asynchronous event queues, and state management systems under high volumes.
• Data Modeling & Schema Excellence: Expert-level understanding of relational (SQL) and non-relational (NoSQL) databases, schema design, complex data validation, mapping workflows, and ETL pipeline design.

• True Builder Mentality: A strong architectural thinker who actively rejects the "ivory-tower" approach and remains deeply passionate about shipping high-quality production code every single week.
  
  Would Be a Plus

   

• Direct technical experience within FinTech, e-commerce SaaS platforms, or real-time data streaming architectures (e.g., Kafka, RabbitMQ).
• Familiarity with financial data aggregates or banking networks (e.g., Plaid, Yodlee, Stripe).
• Experience setting up data ingestion pipelines optimized for downstream AI/LLM analysis models.
   

What We Offer

• Competitive salary aligned with market standards, with annual salary reviews.
• A friendly, collaborative startup environment where you can drive impact in a mission-critical space for growing consumer brands.
• High-growth opportunity - join early and help shape a cutting-edge product used by high-velocity, finance-driven companies.
• Access to modern tech stack, including serverless/cloud-native solutions, event-driven pipelines, and experimentation with LLMs/AI for data validation.
• Generous time off, flexible work arrangements, and commitment to work-life balance.

About LumnixLumnix is a boutique technology talent agency that connects businesses with exceptional technology professionals from around the world. We specialize in sourcing, vetting, and managing top-tier remote talent to help startups and enterprises build high-performing, distributed technology teams.

Шукаємо розробника для створення та розвитку HTML5 слот-ігор на Pixi.js: від сцен і анімацій до інтеграції з сервером та стабільної роботи на мобільних пристроях. Для нас важливі акуратна архітектура, висока продуктивність і переюзабельні рішення.

Задачі:

• Розробка клієнтської частини слот-ігор на Pixi.js / TypeScript: сцени, стани, UI, анімації, ефекти та переходи
• Реалізація ігрових механік: барабани (reels), paylines/ways, каскади, sticky, respin, hold&win, бонусні раунди (залежно від проєкту)
• Інтеграція з ігровим API: ставки, спіни, результати, бонуси, автоспін, історія, відновлення сесії
• Організація пайплайну ассетів: атласи (TexturePacker), шрифти, preloading, керування памʼяттю, версіонування ресурсів
• Оптимізація продуктивності (FPS, памʼять), профілювання, усунення витоків, стабільна робота в браузерах iOS/Android
• Підтримка спільного ядра / фреймворку: переюзабельні модулі, конфігурованість, документація, code review

Вимоги:

• Впевнене володіння JavaScript / TypeScript
• Досвід розробки ігор або високонавантажених інтерактивних web-застосунків
• Практичний досвід роботи з Pixi.js (контейнери, спрайти, текст, маски, фільтри, взаємодія, менеджмент текстур)
• Розуміння ігрового циклу (update/render), подієвої моделі, таймінгів та анімацій
• Досвід збірки та доставки проєктів: Vite / Webpack, Git, базове розуміння CI/CD (на рівні проєкту)
  
  Архітектура та ігрові патерни (обовʼязково):
• Впевнене застосування : Service Locator / DI, Command, State, State Machine, pub/sub
• Розуміння та практичний досвід з ECS: розділення даних і логіки, системи як обробники, керований update
• Практика MVVM та реактивності: звʼязування UI зі станом, однонаправлений потік даних, передбачувані сайд-ефекти
• Проєктування розширюваної архітектури: модульність, переюзабельні компоненти, контроль залежностей, тестованість
  
  Буде плюсом:
• Досвід роботи зі Spine / DragonBones
• Particles, shaders / filters, WebAudio
• Досвід роботи зі слот-математикою та форматами серверних відповідей провайдерів
• Підтримка кількох аспектів та орієнтацій екрана
• Локалізація, CDN-кешування ассетів
• Досвід створення внутрішнього SDK / рушія та супроводу набору ігор
  Нам важливо:
• Відповідальність за якість результату та дотримання дедлайнів.
• Ініціативність.
• Бажання професійного зростання та розвитку.
• Уміння самостійно розбиратися в задачах, знаходити рішення й відповіді на запитання, що виникають.
  
  Ми пропонуємо:
• Участь у створенні яскравих та інноваційних слот-ігор; 
• Роботу в міжнародній команді професіоналів; 
• Гнучкий графік та можливість працювати віддалено;
• Конкурентну винагороду, що залежить від досвіду та рівня експертизи;
• Простір для творчості, ініціативи та професійного зростання.

Шукаємо Senior Front-End розробника з міцною базою у HTML5/JS/CSS та досвідом побудови SPA-додатків. Ключовий стек - TypeScript і React. Серед навичок, що стануть перевагою: Bootstrap, Figma, gRPC, WebSockets, глибоке знання HTTP, робота з картографічними даними, KMZ, XLSX та Elm.
 

     Обовʼязки:

• Розробка, вдосконалення та підтримка фронт-енду на TypeScript і JavaScript.
• Комунікація між фронт-ендом і бекендом через HTTP API (JSON) та gRPC.
• Робота з компонентною бібліотекою Bootstrap та іншими UI-інструментами.
• Самостійне макетування й прототипування; за потреби - верстка макетів із Figma.
• Написання коду, що відповідає стандартам безпеки, ефективності та надійності.
• Самостійне планування роботи та розстановка пріоритетів відповідно до задач.
   

     Вимоги:

• Практичний досвід роботи з JS\TypeScript.
• Впевнена робота з асинхронним API - Promise, async\await, обробка помилок.
• Досвід написання продуктивного коду з мінімальним споживанням пам'яті та високою швидкодією.
• Розуміння принципів побудови компонентної архітектури та SPA.

• Вміння читати та інтерпретувати UI-макети, працювати самостійно без детального технічного завдання.

  
  Ми пропонуємо:

• Роботу над продуктами, що мають прямий вплив на обороноздатність України.
• Команду сильних інженерів, які створюють рішення для реальних викликів сьогодення.
• Можливість бронювання відповідно до чинного законодавства.
• Офіційне працевлаштування та соціальні гарантії згідно з КЗпП України.
• Оплачувану відпустку та лікарняні.
• Компенсація оренди житла при переїзді з інших регіонів.
• Конкурентну винагороду.
• Можливість відряджень.
• Простір для професійного розвитку, ініціатив та впливу на кінцевий результат.
   

Job Title: Senior Front-End / Web Developer (Next.js · React · TypeScript, Payments)
Company: VCG Tech Limited
Location: Remote (Global)
Employment Type: Full-Time

Role Purpose

You will own the web interfaces at the heart of our payments experience: the deposit and withdrawal journeys clients rely on, the screens where they track payment status and history, and the back-office tooling our operations teams use to monitor and resolve payment activity. In a regulated fintech and online trading context, these flows must be fast, clear and correct every time. Money movement leaves no room for ambiguity, so the quality of the UI you build directly shapes client trust and operational efficiency.

Day to day you will work in a focused, cross-functional product team, turning designs and API contracts into polished, accessible Next.js applications. You will partner closely with backend engineers integrating a gRPC-based backend through Next.js route handlers, with designers on usable and consistent interfaces, and with product and operations on requirements and edge cases. You will be expected to own features end to end, from technical approach through testing and release, and to set the bar for front-end quality. This is a senior, remote role reporting into engineering leadership within the Payments team.

Key Responsibilities

Build payment journeys

• Design and build deposit, withdrawal and payment-status interfaces in Next.js (App Router), React and TypeScript
• Translate designs into responsive, accessible and pixel-accurate UI with Tailwind CSS across devices and browsers
• Model and manage complex client-side state for multi-step, asynchronous payment flows with Redux Toolkit, and build robust forms with react-hook-form and Zod
• Handle loading, error, retry and edge-case states so users always understand what is happening
• Build internal back-office and operations screens for monitoring and resolving payment activity

Integrate with backend services

• Integrate the front end with a gRPC backend through Next.js API route handlers and server components, owning data fetching, caching and error handling
• Collaborate with backend engineers on gRPC / protobuf contracts, payloads and edge-case behaviour
• Ensure correct, defensive handling of sensitive payment data on the client
• Reflect server-side validation and asynchronous status changes accurately in the UI, including real-time deposit-status updates over WebSockets / SSE

Quality, testing and performance

• Write component, unit and integration tests to safeguard correctness of payment-critical flows
• Optimise rendering, bundle size and load performance for a fast, reliable experience
• Uphold accessibility standards so journeys are usable by everyone
• Contribute to code review and maintain consistent, high-quality front-end standards

Collaboration and ownership

• Own features end to end, from technical approach through release and post-release monitoring
• Partner with designers to refine flows, interactions and a shared component library
• Work with product and operations to clarify requirements and surface edge cases early
• Ship iteratively through CI/CD pipelines with confidence and clear release hygiene

Required Experience & Skills

• Senior-level experience building production web applications with Next.js (App Router), React and TypeScript
• Strong command of modern JavaScript, HTML and CSS, including responsive layout with Tailwind CSS (or similar)
• Strong experience with Redux Toolkit (or comparable state management) and with form handling and validation (react-hook-form, Zod or similar)
• Proven track record integrating front-ends with backend APIs — gRPC and/or REST — including robust error and edge-case handling
• Solid front-end testing practice across component, unit and integration levels
• Fluency with modern build tooling, package management and front-end performance optimisation
• Strong Git workflow skills and experience shipping through CI/CD pipelines
• Care for usability, correctness and accessibility, with attention to detail in user-facing flows
• Ability to own features end to end and collaborate effectively in a cross-functional, remote team
• Clear written and verbal communication for working with backend, design, product and operations

Nice to Have

• Experience building UI for payments, fintech or other transactional, money-movement domains
• Familiarity with online trading, brokerage or CFD/FX products
• Experience contributing to or maintaining a design system or shared component library
• Working knowledge of accessibility standards such as WCAG
• Basic familiarity with Node.js or a backend-for-frontend (BFF) layer
• Exposure to observability and front-end monitoring tooling in production
• Experience designing UI for sensitive or compliance-driven workflows
• Experience with Next.js server components and route handlers, and with gRPC / protocol buffers
• Familiarity with internationalised apps (i18next), a component library such as NextUI, and animation with Framer Motion
• Experience working in a pnpm / Turborepo monorepo and building real-time UI over WebSockets or SSE

Are you an experienced technical leader ready to shape the future of scalable AdTech platforms? We are seeking a Principal Engineer to drive architectural transformation and lead high-impact projects for a Sweden-based industry innovator.

This is a senior-level role with full remote flexibility across Europe. At Sigma Software, we partner with global leaders to deliver cutting-edge technology solutions that automate and optimize revenue-focused operations. You will work on strategic initiatives, collaborate with cross-functional teams, and influence technical direction in a fast-paced, evolving domain.

Why join us? You’ll have the opportunity to work on globally recognized platforms, contribute to architectural innovation, and enjoy a supportive culture with challenging projects.
 

CUSTOMER

Our Customer is a Swedish AdTech company that transforms the way publishers and advertisers interact. They provide state-of-the-art self-serve advertising platforms that enable seamless, direct transactions between advertisers and some of the world’s largest publishers. Their mission is to make advertising more accessible, automated, and efficient through innovative technology. Together, we serve globally recognized clients, including TripAdvisor, Bloomberg, The Washington Post, Opera, Dow Jones, etc. 

PROJECT

The project represents a strategic transition to a Platform-First, API-driven architecture. The company is moving away from monolithic, client-specific codebases to a standardized ecosystem. As a Senior TypeScript/Vue.js Developer, you will be the technical visionary for the platforms, ensuring the technology remains high-performing and scalable.

Job Description

• Act as a key technical liaison between business and engineering teams, translating commercial goals into actionable technical solutions
• Evaluate publisher technical environments and design scalable, maintainable architectures
• Prepare client-ready solution proposals, including features, integrations, and tools
• Lead cross-functional delivery teams, including developers, designers, DevOps, and technical PMs
• Provide architectural oversight throughout the development lifecycle to ensure continuity and quality
• Manage distributed teams across multiple time zones
• Mentor engineers, conduct code reviews, and guide technical growth
• Make architectural decisions at component and plugin levels, balancing trade-offs and communicating choices clearly

Qualifications

• At least 6+ years of hands-on experience in JavaScript / TypeScript, Vue.js, and Node.js
• Experience in microservices architecture and distributed systems integration
• Hands-on experience with AWS Lambda or similar serverless technologies
• Deep understanding of plugin-based systems and extensibility points
• Proven ability to customize and extend existing solutions without breaking core functionality
• Experience in AdTech environments with evolving requirements
• Knowledge of Vite, Cypress, and Vitest for modern development workflows and testing
• Experience with AWS S3 and CloudFront for scalable storage and content delivery
• Strong commercial acumen and ability to translate business goals into technical infrastructure
• Fluent English communication skills for enterprise stakeholder management

WILL BE A PLUS

• Experience with other serverless frameworks (e.g., Azure Functions, Google Cloud Functions)
• Familiarity with enterprise e-commerce platforms
• Knowledge of performance optimization and security best practices
• Prior work in media publishing technology solutions

PERSONAL PROFILE

• Proactive, solution-oriented mindset
• Strong problem-solving skills and ability to unblock dependencies
• Comfortable working in fast-paced environments with evolving requirements
• System-thinking approach — seeing beyond individual tasks to the bigger picture