Senior Software Engineer (Front-End)

Join a great place to work with MissionSquare, a financial services corporation with approximately $79 billion in assets under management and administration and over 600 employees. Founded in 1972, MissionSquare is dedicated to the retirement needs of public sector employees. We focus on delivering results-oriented retirement and retiree health savings plans,

, investment options, personalized guidance, and related services to public sector participants in more than 9,200 plans and nearly 2 million participant accounts. We strive to make the administration of retirement programs as easy and cost-effective as possible. We have an extraordinary talent base and invite you to consider joining MissionSquare. $107,070.00 - $171,320.00 The Senior 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. We cannot work on C2C either.*** Essential Functions For This Role Include • 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. If you have the following skills, we encourage you to apply: • BA/BS in Computer Science, Information Systems, Engineering, or related field; or equivalent experience. • 5–7 years of professional front-end engineering experience, including enterprise-scale component development and custom integrations. • Experience in financial services or regulated industries highly desirable. • React, JavaScript, HTML, CSS, front-end architecture and componentization. • 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. To benefit your career and support your wellbeing, we offer: • Competitive Total Rewards package, including base pay, incentive programs,