Frontend Developer building intuitive and seamless cross - platform sports betting applications at iGaming startup. Focusing on coding, debugging, and enhancing user experience in Lisbon.
About the role
- Sr. Front End Developer at MetroStar delivering secure, high-performance front-end applications. Leading UI/UX modernization efforts in a mission-critical federal environment.
Responsibilities
- Lead design and implementation of modern, responsive, high-performance user interfaces using Angular and/or React
- Translate mission and operational requirements into intuitive, accessible UI/UX solutions
- Modernize legacy web applications to current front-end frameworks
- Develop, test, and maintain enterprise applications using C#, .NET, .NET Framework, ASP.NET (WebForms, MVC, REST APIs)
- Integrate front-end components with secure backend services and SQL databases
- Apply secure coding practices aligned to OWASP, STIG, and enterprise security baselines
- Participate in Agile ceremonies, peer code reviews, and CI/CD workflows
- Troubleshoot and remediate production issues in a mission-critical environment
- Collaborate with security, infrastructure, and platform engineering teams
- Contribute to architectural decisions impacting performance, scalability, and maintainability
Requirements
- Active Top Secret with SCI eligibility security clearance
- Bachelor’s degree in Computer Science or Software Engineering preferred; relevant experience may substitute
- 8+ years of professional software development experience building, testing, and maintaining enterprise applications in mission-critical environments
- Certification meeting DoD 8140 requirements (e.g., Security+ or higher)
- Required certification: Azure Developer Associate, AWS Developer Associate, or recent/relevant software development certification
- Expertise with modern front-end development using: TypeScript, JavaScript, HTML, CSS, Node.js and Angular and/or React
- Strong understanding of modern UI/UX web design principles for performance and responsiveness
- Proficient in: C#, .NET, .NET Framework, ASP.NET (WebForms, MVC, REST APIs)
- Back-end experience with database development and administration including: SQL Server and T-SQL
- Experience with: Source code management tools (Azure DevOps, GitLab, or GitHub), CI/CD pipelines and Containerization using Docker
- Ability to contribute immediately with minimal ramp-up in a dynamic, mission-critical environment
Benefits
- Health, dental, and vision insurance
- 401(k) retirement plan with company match
- Paid time off (PTO) and holidays
- Parental Leave and dependent care
- Flexible work arrangements
- Professional development opportunities
- Employee assistance and wellness programs
- Performance-based bonuses
- Company-paid training and/or certifications
- Referral bonuses
Job title
Job type
Experience level
Salary
Degree requirement
Tech skills
Location requirements
Front - end Developer creating and maintaining web applications using React and Next.js at IntellectEU. Collaborating with QA engineers and architecture teams in a hybrid work environment.
Frontend Software Engineer leading the transition to modern Angular architecture for cloud - based solutions. Collaborating with teams to deliver secure, user - focused applications in a rapidly evolving environment.
Front End Developer implementing dashboards and data visualizations for government supply chain decision - making. Working under architectural governance to create actionable user interfaces.
Collaborating with technology team to assess user needs and resolve issues. Direct communication with candidates for humanized service and KPI management.
Software Developer focusing on user needs and technology team collaboration at a startup. Creating and managing quality KPIs for service efficiency.
Front - End Developer designing web applications to enhance flexible working at OfficeRnD. Collaborating with stakeholders to innovate and implement user - centric features.
Senior Frontend Developer creating high - performance user interfaces for Vivo. Responsible for defining application architecture and mentoring junior developers in an agile setting.
Staff Frontend Engineer for AI Copilot focusing on developing and delivering AI - enhanced customer service solutions. Collaborating across teams to build accessible and performant user interfaces with a focus on TypeScript and React.
Front - End Software Engineer developing KinaTrax data visualization tools for sports teams. Collaborating with product development team to enhance athlete performance data solutions.