Expert Engineer, Software (Front-end)

MissionSquare • District of Columbia - Remote, DC

2d • Hybrid

About The Position

The Expert Software Engineer (Front-End) is responsible for designing, implementing, and optimizing MissionSquare’s next-generation web experiences. This role collaborates within Agile teams, including products, UX, and engineering; to deliver secure, scalable, and high-performing front-end applications. The position ensures interoperability, reliability, and quality through disciplined engineering practices and continuous improvement. MissionSquare cannot sponsor or hire candidates with H1B, STEM or OPT visas for this role.

Requirements

• BA/BS in Computer Science, Information Systems, Engineering, or related field; or equivalent experience.
• 7–10 years of professional front-end engineering experience, including enterprise-scale component development and custom integrations.
• Experience in financial services or regulated industries highly desirable.
• Experience using React, SASS, SCSS, JavaScript, HTML, CSS, front-end architecture and componentization.
• Experience authoring and creating NPM packages.
• SQL/Oracle fundamentals; familiarity with stored procedures for data access patterns.
• Cloud platforms and CI/CD (AWS/Azure; pipelines, build/deploy automation).
• Secure coding and SDLC controls; OWASP awareness.
• Git-based workflows (CodeCommit/GitHub); branching, code reviews, release management.
• AI-assisted development (code completion/generation/debugging).
• YAML/JSON literacy for configuration and data interchange.
• Jira or similar ALM tooling.
• Strong written and verbal communication for technical and non-technical stakeholders.
• Building responsive, cross-browser UIs; performance tuning.
• Debugging and troubleshooting across the stack; test planning and execution.
• Continuous improvement mindset; ability to learn and apply emerging technologies.
• Translate UX specifications into high-quality components; collaborate across product/design/engineering.
• Independently drive complex problem solving and root-cause analysis.
• Work autonomously and within teams; manage priorities and deliver results.

Responsibilities

• Design, develop, and optimize user interfaces using modern front-end frameworks (React, JavaScript, HTML, CSS).
• Translate UX specifications into reusable React components and integrate with server-side APIs (REST/GraphQL) in collaboration with UX and back-end teams.
• Deliver responsive, cross-browser experiences optimized for multiple devices and viewports.
• Collaborate with product, UX, QA, and platform teams to ensure seamless interoperability across applications.
• Build and maintain reusable component libraries and design systems to ensure UI consistency and accelerate development.
• Develop and execute unit and integration tests; contribute to test planning to ensure quality and reliability.
• Provide production support, troubleshoot issues, and lead root-cause analysis in collaboration with SRE and platform teams.
• Participate in Agile ceremonies (stand-ups, planning, reviews), communicate blockers, and report progress.
• Research emerging front-end and AI technologies; recommend adoption strategies to enhance automation, analytics, and developer productivity.
• Document technical designs, decisions, and implementation details; maintain comprehensive system documentation.
• Evaluate and recommend frameworks, libraries, and testing tools based on functionality, quality, and performance.
• Perform other related duties as assigned.

Benefits

• Competitive Total Rewards package, including base pay, incentive programs, benefits, and a 401(k) plan with matching contributions
• Flexible and hybrid work schedules to support work-life balance
• Tuition reimbursement to support continued education
• Professional and career development opportunities, including courses and certifications
• Comprehensive wellness programs promoting physical, mental, and emotional health
• Volunteerism initiatives to encourage community engagement

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: Associate degree