MissionSquare · 4 hours ago
Senior Engineer, Software (Full-Stack)
DC - HQ
Full-time
Hybrid
Mid, Senior Level
$107K/yr - $171K/yr
5+ years expMissionSquare is a financial services corporation dedicated to the retirement needs of public sector employees. The Senior Software Engineer (Full-Stack) will design, develop, and maintain web solutions while collaborating with Agile teams to deliver secure and high-performing applications.
Financial ServicesInsuranceRetirement
No H1B
Responsibilities
Design, develop, and maintain scalable, high-performance full-stack applications using modern front-end (React, HTML, CSS, JavaScript) and back-end frameworks (Node.js, Java/Spring Boot)
Build and integrate secure, maintainable RESTful APIs for enterprise-grade systems
Design and implement integrations with internal platforms and external third-party systems to ensure interoperability and data integrity
Collaborate with product, UX, QA, and platform teams to ensure seamless interoperability across applications
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 technical teams
Participate in Agile ceremonies (stand-ups, planning, reviews), communicate blockers, and report progress
Research emerging technologies (including AI) and recommend adoption strategies to improve 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
Performs other duties as assigned
Qualification
Required
BA/BS in Computer Science, Information Systems, Engineering, or related field; or equivalent experience
5–7 years of professional full-stack engineering experience, including enterprise-scale component development and integrations
Experience in financial services or regulated industries highly desirable
React, JavaScript, HTML, CSS; front-end architecture and componentization
RESTful API design and implementation; Java/Spring Boot and Node.js
SQL/Oracle fundamentals; familiarity with stored procedures for data access patterns
Cloud platforms and CI/CD (AWS/Azure); containerization (Docker)
Secure coding and SDLC controls; OWASP awareness
Git-based workflows (CodeCommit/GitHub); branching, code reviews, release management
AI-assisted development (code generation, automation, testing)
YAML/JSON literacy for configuration and data interchange
Jira or similar ALM tooling
Strong written and verbal communication for technical and non-technical stakeholders
Debugging and troubleshooting across the stack; test planning and execution
Continuous improvement mindset; ability to learn and apply emerging technologies
Independently drive complex problem solving and root-cause analysis
Work autonomously and within teams; manage priorities and deliver results
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
Company
MissionSquare
Since its founding in 1972, MissionSquare has remained dedicated to helping individuals and their families build financial security.
501-1000 employees
Funding
Current Stage
Late StageLeadership Team
Andrew Whiting
Chief Sales Officer
Lisa Raff
Chief Human Resources Officer
Recent News
2026-01-07
Company data provided by crunchbase