Jobs JavaScript / Front-End

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.

We are looking for a Senior Front-End Engineer (Pixi.js) to join our team! 

Requirements: 
- 5+ years in frontend engineering, 2+ years with 2D JavaScript Framework experience (Pixi.JS, Phaser, or similar)
- Expert in HTML5, CSS/SCSS, responsive layouts, and component-driven architecture.
- Familiar and can apply TDD/BDD like practices
- Performance optimization (change detection, lazy loading, bundle splitting)
- API integration: REST, WebSockets; robust error/edge-case handling.
- CI/CD familiarity; feature flags, environment config, release hygiene.
Security basics (OWASP for web), auth flows (OAuth/OIDC/JWT). 

Responsibilities: 
- Design, develop, and maintain scalable frontend services using modern web frameworks.
- Take part in technical discussions to come up with solutions for challenging issues;
- Optimize application performance, scalability, and security.
- Collaborate closely with product managers, designers, and other developers to deliver seamless user experiences.
- Write clean, maintainable, and well-documented code, following coding standards.

Our benefits to you:

☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed

🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided

🏖Paid vacations, sick leave, personal events days, days off

💵Referral program — enjoy cooperation with your colleagues and get the bonus

📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences

🎯Rewards program for mentoring and coaching colleagues

🗣Free internal English courses

✈️In-house Travel Service

🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more

🎳Other benefits could be added based on your location. 

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 🌐⚙️

About us:

Farsight Vision converts flight footage into digital 2D and 3D twins for real-time intelligence in GNSS-denied environment, making analytics and situational awareness convenient and accessible while saving time and effort. We create multi-layered digital twins of terrain with dynamic tracking and object/landscape monitoring and predicting.

We’re looking for a Frontend Developer to join our young, fast-paced product team. You’ll contribute to rapid development and prototyping, focusing on quickly building new features and launching a new platform version soon.

Responsibilities:

• Define and implement complex, scalable frontend architecture, ensuring high quality and maintainable code.
• Lead the translation of high-level technical requirements and user stories into robust and high-performing user interfaces.
• Serve as the technical authority in team discussions, including architectural planning, defining coding standards, and conducting detailed code reviews.
• Own the requirements refinement process, providing expert assessment on technical feasibility, performance optimization, and UX best practices.
• Initiate, propose, and implement significant improvements to existing codebases, development workflows, and CI/CD processes.
• Take full ownership of resolving critical and complex frontend issues, establishing performance metrics, and ensuring architectural resilience.
• Mentor and coach Junior and Mid-level developers, fostering a culture of technical excellence and high accountability within the team.

Requirements:

• 7+ years of hands-on experience in the full software development lifecycle.
• Deep expert knowledge of browser internals (LocalStorage, SessionStorage, etc.) and performance optimization techniques.
• Exceptional mastery and deep expertise in JavaScript/ES6+ and its modern ecosystem.
• Proven ability to architect complex applications using TypeScript, including advanced typings and design patterns.
• Extensive experience (as a primary technology) with React v19, with a focus on building scalable and maintainable component libraries.
• Expert experience in evaluating, implementing, and managing state management solutions (Zustand, Redux, MobX) in large-scale applications.

Would be a plus if you have:

• Practical experience working with AWS services (S3, Lambda) and containerization (Docker).
• Experience working with geospatial data and mapping libraries (Leaflet, Folium).
• Experience working with 3D models and/or complex data rendering.
• Basic understanding of Python and Postgresql DB.

Why you should join us:

• With us, you will become part of a team of professionals who strive to contribute to the development of advanced technologies.
• We value teamwork and create an atmosphere of mutual support where everyone can unleash their potential.
• Flexible work schedule.
• Paid vacation and sick days.

Security Eligibility
Our platform is actively used by the Armed Forces in live operations. As an Estonian-Ukrainian defense technology company handling sensitive operational data, we have a responsibility — legal, ethical, and practical — to ensure the integrity of everyone on our team.
All candidates must be able to confirm the following:
- Neither you nor your close relatives (parents, spouse, siblings, children) reside in Russia, Belarus, or temporarily occupied Ukrainian territories
- You have no regular personal, financial, business, or professional contact with individuals in those territories
- You consent to a deeper security verification if the process advances to later stages
If any of the above criteria are not met, please do not proceed with your application.

Why this role exists:

The purpose of this role is to design and implement scalable software solutions, ensuring high-quality delivery within established timelines. The role focuses on solving complex technical challenges, improving engineering practices, and contributing to software reliability and performance. A Senior Developer mentors peers, shares technical expertise, and collaborates with cross-functional teams to deliver solutions that meet business requirements.

What you’ll drive:

Architecture and development

• Designing and implementing scalable and efficient software architectures.
• Writing, testing, and debugging complex code for new and existing software applications.
• Delivering code to production in a timely manner according to business expectations.

Leadership and collaboration

• Providing guidance and mentoring to junior engineers and team members.
• Conducting thorough code reviews to ensure code quality, security, and best practices.
• Managing software development projects, ensuring timely delivery and quality.
• Collaborating with cross-functional teams to design and align technical solutions that meet business objectives
• Communicating effectively with stakeholders on technical concepts.

Engineering processes and quality assurance

• Creating and maintaining comprehensive technical documentation for software development and system design.
• Creating and maintaining comprehensive technical documentation for software development and system design.
• Researching and implementing new technologies and methodologies to improve software performance and development processes.
• Identifying and resolving complex software issues and technical challenges.
• Developing and enforcing testing protocols to ensure software reliability and performance.
• Driving continuous improvement in software development practices and processes.

What makes you a GR8 fit:

Must-have

• Minimum of 5 years of experience in a similar senior engineering role;
• Deep knowledge of JavaScript, TypeScript, React, HTML, CSS, state management libraries, build tools, package managers, and web testing frameworks;
• Experience with microfrontend architectures and Module Federation patterns (Webpack Module Federation, dynamic remote loading, shared dependency management);
• Ability to analyze code, debug complex issues, optimize performance, and develop proofs of concept (PoCs);
• Understanding of web performance metrics and browser performance optimization, including Core Web Vitals (LCP, INP, CLS), FCP, TTFB, TBT, Speed Index, Time to Interactive (TTI), bundle size, and JavaScript parsing and execution performance;
• Understanding of browser internals, SPAs and static websites, client-server architecture, REST APIs, SSR, web security, and UI/UX patterns;
• Effective communication skills with both technical and non-technical audiences;
• Upper-Intermediate English level.

About Flamingo

Flamingo is revolutionizing the Managed Service Provider (MSP) industry with an AI-driven, open-source platform for IT and security. Our goal is to empower MSPs with automation, optimization, and scalability tools to enhance their operations.

Role Overview

As a Front-end Engineer at Flamingo, you’ll play a key role in building the core user experience and backend logic behind our AI-powered platform.

This is a hands-on engineering role with ~80% frontend and ~20% backend where you’ll collaborate with product designers, DevOps, and fellow engineers to ship quickly, iterate often, and build systems that scale.

Key Responsibilities

• Build and maintain core product features using Next.js and TypeScript
• Work with Relay and GraphQL on our main product; integrate REST APIs on internal tooling
• Collaborate with backend engineers on API and schema design
• Translate product and design specs into high-quality, user-centric interfaces
• Ensure performance, accessibility, and responsiveness across modern browsers
• Collaborate closely with the design team to evolve and maintain our design system
• Write clean, modular, well-tested code and contribute to code reviews
• Participate in architecture discussions and technical decision-making

Must-Have

• 5+ years of experience in frontend development
• Strong proficiency with React, Next.js (App Router), and TypeScript
• Hands-on experience with Relay and GraphQL - fragment colocation, pagination, store management
• Solid understanding of modern frontend architecture and component design
• Strong understanding of web standards, performance, and responsive design
• Experience working with REST APIs and integrating third-party services
• Strong Git workflow and code review culture

Nice-to-Have

• Experience with Supabase or similar BaaS platforms
• Familiarity with server-side rendering and performance optimization
• Understanding of database design (SQL)
• Exposure to authentication flows (OAuth, JWT, magic links)
• Familiarity with accessibility and internationalization best practices
• Experience with CI/CD workflows and deployment pipelines

Why Join Flamingo?

• High-impact role: As a front-end engineer, you’ll work across the entire product experience from backend architecture to the user interface, shaping how thousands of MSPs interact with our platform.
• Ownership & Equity: Competitive compensation and a meaningful equity stake in a high-growth, early-stage startup.
• Modern Tech Stack: Built with React, Node.js, and open-source tools, all in a scalable microservices architecture.
• Remote-first Culture: Work from anywhere and collaborate with a team of senior engineers, designers, and product leaders.
• Mission-Driven Team: Be part of a company that’s redefining how IT and security services are delivered, making powerful automation tools accessible to all MSPs, not just the enterprise giants.

Product that needs your engagement 

You will be at the heart of building a new generation web-based application fully powered by AI technologies. This product is envisioned as a cutting-edge tool that redefines how professionals interact with complex data and workflows. We’re not just adding AI features into an existing app - we are designing an AI-first experience from the ground up, where automation, personalization, and intelligence are embedded in every interaction. The application will combine scalability, intuitive UX, and deep AI integration to create a solution that is both technically robust and delightful to use.

Your future team of professionals 

You will join a young but growing, ambitious team that thrives on collaboration and innovation. 

Today the team includes:

• 1 Software Architect defining the overall technical direction and system design
• 2 skilled Backend Engineers + 1 Frontend Engineer who ensure strong architecture and data handling
• 1 Product Manager driving the vision, roadmap, and priorities
• 1 QA Engineer guaranteeing product quality and reliability

As we expand, this team will grow rapidly, and your role will be pivotal in setting both the technical and cultural tone of our engineering organization.

Your future challenges 

As a Senior Front-end Developer, you will take on a founding role in building this application from scratch. Your challenges will include:

• Shaping the architecture and technical stack of a greenfield AI-driven web app
• Translating ambitious product ideas into production-ready features
• Partnering closely with backend engineers to define clear API contracts for AI services
• Solving novel technical problems, from real-time data visualization to seamless human-AI interactions
• Balancing speed of delivery with long-term scalability and performance
• Setting engineering standards and mentoring less experienced developers
• Acting as a thought partner to the Product Manager in exploring “what’s possible” with modern AI technologies.

This is a rare chance to work on a zero-to-one product, where your decisions will directly shape the outcome.

Impact you will make 

• Develop responsive, scalable UI components using HTML, CSS, JavaScript/TypeScript, and React.js
• Ensure cross-browser compatibility and accessibility compliance (WCAG standards)
• Work closely with backend developers to integrate APIs
• Partner with UX/UI designers to translate designs into seamless user experiences
• Participate in code reviews and contribute to continuous improvement of team practices
• Identify and resolve performance bottlenecks in React apps

Tech stack you'll be working with

• UI/Styling - Tailwind
• State Management - Zustand + TanStack Query
• Forms - React Hook Form + Zod
• Routing - TanStack Router
• Monorepo orchestration - Turborepo

Skills we are looking for 

• At least 4 years of experience as a Front-end Developer, preferably in a tech environment
• Higher education in Computer Science, Information Technology, or a related field (relevant certifications are a plus)
• Strong proficiency in JavaScript and TypeScript 
• Deep understanding of software principles: SOLID, IoC, OOP, design patterns, and client/server architecture
• Expertise in React.js and state management
• Version control with Git and collaborative workflows (branching, pull requests, reviews)
• Familiarity with authentication concepts and secure application development
• Experience with testing frameworks 
• Knowledge of Docker/docker-compose and basic CI/CD processes
• Performance optimization skills: profiling JS/React apps, identifying bottlenecks, keeping apps fast

Benefits you get

• Maintain your work-life balance

Manage your own working hours with our flexible schedule

19 days of annual vacation granted on a pro-rata basis

No overtimes required

• Hybrid/remote type of cooperation

Whether you prefer to work remotely in the comfort of your home office or from one of our 4 offices, you can still take part in increasing the world`s awareness about quality Ukrainian products from any part of the world

• Stay healthy

Medical insurance from one of the top insurance companies in Ukraine with a wide range of included services, as well as special programs for relatives; and special options for those who live abroad.

15 working days of sick leave per year — because your health is a priority.

• Grow with us

In-house English courses — increase your proficiency through our online courses and speaking clubs with a native speaker

Online learning activities — workshops, lectures, and webinars to enhance your leadership, management, and self-awareness skills

Experience exchange — we are proud of our team of professionals who gladly share their deep expertise in all kinds of fields with the rest of the team

Promotions, rotations, and transitions — when you believe your skills could benefit a different role or team.

• Stand with Ukraine!

We have an active pro-Ukrainian position, and that means we help our army, our servicemen, and their families not only through constant donations and volunteering, but also through our military leave policy, special health insurance options, and financial help

We are a perfect match if you share our values

We are professionals in our field.

We know how to turn up our professionalism to the maximum, because we are experts who enjoy solving complex tasks.

We know how to focus on the product, think big, and at the same time delve deep into the details.

We create a calm and friendly atmosphere within the company.

We value the freedom of open and transparent communications.

Radical honesty is embedded in the foundation of our culture.

We are open to new things and constantly develop and practice regular knowledge sharing, which helps us evolve continuously.

Most importantly, the company creates an environment where we can fulfill our potential upon a solid foundation.

Our Hiring Process

• Recruitment Interview
• Technical Interview
• Offer Call

We are building a revolutionary AI-based image and video processing platform and are looking for an Integrations Engineer to help expand our customer base through your technical expertise. We are open to candidates who can contribute significantly to developing our solutions and improving the customer experience.

​

Role Overview
​The responsibilities of a Solutions Engineer include sharing expertise on the product and its integration—specifically focusing on front-end understanding and a strong overall grasp of web technologies. You will use your analytical and interpersonal skills to guide our clients and maximize the value they gain from using our technology.
 

​The ideal candidate should have excellent communication and interpersonal skills, as well as the ability to meet KPIs and deadlines, demonstrating strong analytical abilities.

​Key Responsibilities

• Be the Product Expert: Act as the product expert and trusted advisor that clients can turn to for guidance on maximizing value from our technology.
• Expand Technical Expertise: Gain experience in front-end and back-end development, web optimization, performance best practices, AI/ML, cloud computing, media compression, and CDN.
• Support & Troubleshoot: Support customers’ technical queries, solve integration issues, and demonstrate the possibilities of the technology.
• Onboard Customers: Manage the technical onboarding of new customers and translate their desired outcomes into an implementation plan that will provide value.
• Define Requirements: Define new technical requirements for integration and prioritize project timelines.
• Cross-functional Collaboration: Ensure all customer requests and issues are handled promptly, working in collaboration with relevant teams including Customer Success, R&D, Sales, and Marketing.
• Quality Assurance: Utilize QA practices to ensure high-quality integrations

Requirements

• Language Proficiency: Strictly C1-C2 English level required.

  Candidates at an Upper-Intermediate (B1-B2) level will not be considered. Exceptional written and verbal presentation skills are a must.

• Working Hours: High flexibility and ability to operate within the US time zone.
   

​Technical Skills:

• 5+ years of experience as a Solutions Engineer, Front-End professional, or in QA within a global, fast-paced environment.
• Experience with Full-Stack technologies (e.g.,Node.js, React, Angular) or QA skills (e.g., automated testing, performance testing).
• ​Hands-on experience with web and cloud technologies.
• Experience with basic debugging/QA tools (e.g., Chrome Dev Tools).
• Problem Solving: Ability to effectively assess and quickly resolve technical issues while working with both technical and non-technical teams. High-level technical, project, and problem-solving skills.

• Mindset: Strong critical thinking and analytical skills with an entrepreneurial, proactive, and result-oriented mindset. Highly motivated, a fast learner, and open-minded.

   

Nice to Have​

• BS, BA, BEng degree or equivalent in Computer Science or a related field.
• ​Experience with Full-Stack technologies (e.g., Node.js, React, Angular) or automated/performance QA testing skills.
• ​Relevant certifications, courses, or experience in adjacent technologies.

We OFFER:

• ​A fast-paced, highly professional, international team environment with a flat structure and rapid decision-making.
• ​Competitive compensation packages commensurate with your background and product portfolio.
• ​Flexible, remote-first workflow optimized for seamless global alignment.
• Medical Insurance in Ukraine and a Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leave, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement.

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 (Office-based role in Warsaw).
• 6+ 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;
• Office-based role (5 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.

Requirements: 


-5+ years of experience in JavaScript game development
- Strong knowledge of HTML5, Canvas API, and DOM manipulation
-Proven track record in creating HTML5 games
-Advanced proficiency in JavaScript (ES6+), including async/await, modules, closures, and classes
-Experience with popular libraries/frameworks such as Phaser, Pixi and Three.js
-Solid understanding of object-oriented programming and expertise in performance optimization algorithms, memory management, and threading
-Experience integrating and optimizing Spine animations in game engines
-Experience with slots
-experience in leading and mentoring front-end development teams.
-strategic, structured and analytical thinking.
-strong collaboration and communication skills.


Responsibilities:

-Manage front-end developers team, and perform code reviews;
-Write clean, efficient, testable, and scalable code;
-Collaborate closely with the team to identify and prioritize areas for enhancement;
-Take part in the full development cycle and ensure smooth development and cooperation between the dev team and product owners
- Hands-on experience with AI tools as part of everyday work is a must


Nice to Have:

+ Experience optimizing HTML5 games for mobile browser performance
+ Understanding of CI/CD


Work conditions:

— Flexible working hours and the freedom to work remotely;
— Paid vacation of 20 workdays/year and 5 workdays/year for sick leaves;
— Unlimited unpaid day-offs to take care of personal matters;
— A range of paid benefits to choose from;
— Personal development plan to support your growth
— Skills training to sharpen your expertise;
— Education office featuring internal and external experts and mentorship programs;
— Structured processes through our corporate confluence;
— Open-minded management style with transparent communication of company strategy and plans;
— Performance-based reviews to recognize and reward your contributions;
— Stress management initiatives, including 1-1 meetings and a feedback culture;
— Engaging in corporate team-building events, marathons, and online challenges;
— Family-friendly policies, including special congratulatory gifts for personal milestones like the birth of a child or a wedding.

If you are an ambitious and enthusiastic professional, always eager to learn and achieve the best results, Twin Win Games is the place for you! We offer ample opportunities for personal development and professional growth. Join us as we continue to create innovative and exciting gaming experiences.
 

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!

Eleven — рекрутингова агенція, яка спеціалізується на пошуку працівників для компаній у галузі військових технологій. Наша мета — підтримувати розвиток оборонної промисловості та допомагати об’єднувати тих, хто наближає до перемоги.

Роботодавець — українська компанія, яка займається виробництвом компонентів електроніки від ідеї до втілення! 

Компанія пропонує можливість реалізувати рішення та впливати на події уже зараз.

У зв’язку з активним розширенням шукаємо в команду JavaScript developer.

Обовʼязки:

• Архітектурне проєктування та технічні рішення для frontend частини.
• Розробка й підтримка інтерфейсу веб-порталу за допомогою Angular. Ініціювання та впровадження оптимізацій роботи веб-порталу.
• Співпраця з командою розробки від етапу Feature idea до Delivery. У
• часть у code review та дотримання командних стандартів розробки.

Вимоги:

• Знання Angular, TypeScript, HTML5, CSS3, SCSS.
• Практичний досвід з Angular 16+ (робота з signals)
• Досвід роботи на комерційних проєктах на позиції Frontend Developer не менше 5 років.
• Розуміння побудови інтерфейсів та best practices в UI/UX
• Досвід з performance optimization (lazy loading, code splitting, bundle analysis)
• Досвід з WebSockets для real-time додатків
• Увага до деталей і аналітичне мислення
• Розуміння принципів Reactive Programming (RxJS).
• Розуміння Git (створення гілок, коміти, мерджі).
• Розуміння принципів SPA та REST API.
• Вміння працювати з Figma або іншими UI-дизайнами.
• Базовий рівень англійської (читання технічної документації).

Що ми пропонуємо:

• Бронювання з першого робочого дня (відповідно до законодавства, за наявності необхідних документів).
• Офіційне працевлаштування, оплачувана відпустка, повна компенсація лікарняних згідно законодавству.
• Медичне страхування.
• Конкурентна винагорода
• Участь в створенні амбітних та цікавих продуктів
• Мінімум бюрократії — короткий шлях від ідеї до її реалізації
• Ефективні рішення не відкладаються, а впроваджуються.
• Швидке професійне зростання у сфері defense-tech.
• Сучасна техніка для комфортної і продуктивної роботи.
• Комфортний офіс зі снеками та фруктами, а також паркомісця для співробітників (робота full-time в офісі).
• Гнучкий графік роботи ( 8:00-17:00/ 9:00-18:00/ 10:00-19:00/11:00-20:00).

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.

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

Role Overview:

We are looking for an experienced Senior Front-End Developer with strong proficiency in JavaScript and extensive expertise in React and Angular. The primary responsibility of the candidate will be to develop the UI of our product alongside a team of seasoned professionals.

Key Responsibilities:

• Developing web applications and ensuring they adhere to high-quality standards and best practices;
• Developing reusable components and front-end libraries to streamline future development efforts;
• Optimising components for maximum performance across various browsers and devices;
• Writing and maintaining unit tests to ensure code reliability and application stability;
• Upholding and enhancing code quality by following established coding standards and practices;
• Communicating and collaborating with team members to drive project success and foster a productive work environment.

Required Skills & Experience:

The ideal candidate will have 4+ years of experience as a Front-End Developer and demonstrate proficiency in:

• Strong understanding of pure JavaScript and extensive experience with TypeScript;
• Solid understanding of Design Patterns;
• Proficiency in React and Angular 2+ frameworks (minimum two years of experience with each);
• Familiarity with React-related libraries such as ReactQuery, React Hooks, Zustand, Ant Design, and Material Design;
• Knowledge and experience with build tools like Webpack and Vite;
• Professional-level proficiency with Git, including branching strategies and collaborative workflows;
• Experience with unit testing frameworks (e.g., Jest, React Testing Library);
• Upper-intermediate level of English proficiency.

The company guarantees you the following benefits:

• Global Collaboration: Join an international team where everyone treats each other with respect and moves towards the same goal;
• Autonomy and Responsibility: Enjoy the freedom and responsibility to make decisions without the need for constant supervision;
• Competitive Compensation: Receive competitive salaries reflective of your expertise and knowledge as our partner seeks top performers;
• Remote Work Opportunities: Embrace the flexibility of fully remote work, with the option to visit company offices that align with your current location;
• Flexible Work Schedule: Focus on performance, not hours, with a flexible work schedule that promotes a results-oriented approach;
• Unlimited Paid Time Off: Prioritise work-life balance with unlimited paid vacation and sick leave days to prevent burnout;
• Career Development: Access continuous learning and career development opportunities to enhance your professional growth;
• Corporate Culture: Experience a vibrant corporate atmosphere with exciting parties and team-building events throughout the year;
• Referral Bonuses: Refer talented friends and receive a bonus after they successfully complete their probation period;
• Medical Insurance Support: Choose the right private medical insurance and receive compensation (full or partial) based on the cost;
• Flexible Benefits: Customise your compensation by selecting activities or expenses you'd like the company to cover, such as a gym subscription, language courses, Netflix subscription, spa days, and more;
• Education Foundation: Participate in a biannual raffle for a chance to learn something new unrelated to your job as part of your commitment to ongoing education.

Interview process:

• HR Interview with the Recruiter;
• A technical interview to assess your skills and abilities;
• A final 1.5-hour interview to gauge your fit with our culture and working style.

If you find this opportunity right for you, don't hesitate to apply or get in touch with us if you have any questions!