Design and build scalable web applications using Next.js and React, collaborate with cross-functional teams, and mentor junior engineers while optimizing performance and code quality.
Company Overview
Our client is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem.
About This Role
The Senior Software Engineer, Web is part of the Engineering team and reports to our Manager, Engineering. As a Senior Software Engineer, Web, you will be responsible for designing and building scalable, high-performance web applications using Next.js and modern front-end technologies.
You will partner with Product, Design, Backend, and DevOps teams to deliver performant, accessible, and secure user experiences while contributing to front-end architecture and engineering best practices.
Working hours 12:00 - 20:00 CET.
Key Responsibilities
- Design and implement scalable front-end features using Next.js, React, and TypeScript.
- Own end-to-end development of web features, including testing, deployment, and maintenance.
- Build modular and reusable UI components to support scalable development.
- Optimize web performance through SSR/SSG, lazy loading, and responsive design techniques.
- Monitor and improve performance metrics such as page load time, TTI, and Core Web Vitals.
- Collaborate cross-functionally with Product, Design, Backend, and DevOps teams to define requirements and deliver features.
- Contribute to front-end architecture decisions and engineering best practices.
- Participate in code reviews and mentor junior engineers to improve code quality and team standards.
- Partner with DevOps to support CI/CD pipelines and reliable deployment processes.
- Ensure high standards in code quality, accessibility, security, and automated testing (unit, integration, E2E).
Required Qualifications
- Bachelor’s or Master’s degree in Computer Science or related field.
- ~8 years of professional software engineering experience, or ~6 with an advanced degree.
- Strong communication and collaboration skills, motivation, problem solving mind set.
- Strong proficiency in Next.js, React, TypeScript, JavaScript, HTML5, and CSS3.
- Strong experience with GraphQL and REST API.
- Experience with performance optimization tools (Lighthouse, WebPageTest, Chrome DevTools).
- Solid understanding of SSR/SSG, CDN strategies, caching, and responsive design principles.
- Familiarity with front-end security best practices.
- Experience with Git, CI/CD pipelines, and modern deployment workflows.
- Exposure to cloud platforms such as AWS or GCP.
- Strong collaboration skills working with Product, Design, and Backend teams.
- Experience mentoring junior engineers and contributing to team development.
- Bonus: Experience with analytics instrumentation or blockchain-integrated front-ends (e.g.,ethers.js, wallet integrations).
We offer*:
- Flexible working format - remote, office-based or flexible
- A competitive salary and good compensation package
- Personalized career growth
- Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
- Active tech communities with regular knowledge sharing
- Education reimbursement
- Memorable anniversary presents
- Corporate events and team buildings
- Other location-specific benefits
*not applicable for freelancers
Similar Jobs
Information Technology • Travel
The Senior Frontend Engineer will develop high-quality code, utilize AI tools for efficiency, and collaborate on product improvements, while ensuring code quality and performance standards.
Top Skills:
Ai ToolsPHPReactTypescript
Artificial Intelligence • Hardware • Information Technology • Security • Software • Cybersecurity • Big Data Analytics
The Video Alta Specialist will support sales teams in closing Avigilon Alta Video sales, manage customer relationships, achieve sales targets, and drive adoption of products, while coordinating with various company resources.
Top Skills:
Building Automation ProductsCloud-Based Video SecurityVms
Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
The Senior Platform Architect advises customers on establishing a technical foundation in the ServiceNow Platform, ensuring effective governance and long-term success. Key responsibilities include engaging with teams, managing architectural strategy, and supporting sales efforts through technical insights and expertise.
Top Skills:
Ai-Powered ToolsCloud ApplicationsServicenow
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute
