Senior Software Implementation Engineer - Phase 1

About the Role

The Senior Software Implementation Engineer plays a key role in the successful technical delivery of Lumin Digital’s digital banking platform. Acting as both a solutions engineer and technical consultant, this role is responsible for implementing platform features, supporting data conversions, and working directly with clients from implementation kickoff through production launch.

The Senior Engineer gathers requirements, scopes and develops custom solutions using the company’s SDK, and supports platform operations throughout the implementation lifecycle. This individual also contributes to internal documentation, best practice improvements, and team knowledge sharing while ensuring client satisfaction and a seamless technical onboarding experience.

Essential Responsibilities

• Client Implementation: Lead full-cycle technical implementations of the Lumin Digital banking platform for new clients, from kickoff and requirements discovery through configuration, testing, and production launch.
• Technical Consultation: Serve as the primary technical point of contact for client stakeholders, translating business requirements into technical specifications and implementation plans.
• Configuration & Integration: Implement and configure banking product components (mobile and online banking modules) and validate third-party integrations and custom solutions.
• Environment Management: Manage client environments across staging, pilot, and production to support iterative testing and smooth go-live transitions.
• Custom Development: Develop and document custom solutions and integrations leveraging Lumin Digital’s SDK, APIs, and tooling to meet client-specific needs.
• Documentation & Architecture: Create and maintain project scope implementation details, data flow documentation, and integration specifications.
• Cross-Functional Collaboration: Partner with Product, Engineering, Services, and Support teams to coordinate deliverables, resolve dependencies, and maintain alignment.
• Data & Performance: Support data conversion, migration efforts, and load testing to optimize performance.
• Troubleshooting & Support: Identify risks, resolve blockers, conduct root cause analysis for technical issues, and provide Tier 2/Tier 3 post-launch support through final handoff.
• Continuous Improvement: Identify opportunities to improve implementation tooling, reusable templates, and delivery best practices.

Qualifications

• Education: Bachelor’s degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience).
• Experience:
  • 5+ years of software engineering experience.
  • 2+ years of experience in technical implementation and systems integration.
  • 2+ years of programming experience in languages such as C#, Java, Python, and SQL.
  • Proven background in digital banking, FinTech, or other regulated enterprise software environments.
  • Strong hands-on experience with SaaS application implementation and configuration.
  • Proficiency with Jira or similar Agile project management tooling.

Skills & Knowledge

• Advanced knowledge of digital banking software and SDK implementations.
• Familiarity with core banking system integrations (e.g., Fiserv, Jack Henry, FIS, Symitar) and standard data formats (JSON, XML, REST, SOAP).
• Familiarity with cloud-native technologies including AWS, Docker, Kubernetes, and observability tools (Datadog, Kibana).
• Solid understanding of microservices architecture and RESTful API design.
• Proficient in relational databases and SQL for validation, data mapping, and troubleshooting.
• Familiarity with modern software development workflows: Git, CI/CD pipelines, and deployment automation.
• Strong analytical and problem-solving skills with the ability to convey complex technical concepts to non-technical audiences.

Travel

• Minimal travel required (generally 12 days or less per year, typically for ~2 team gatherings annually).

Life at Lumin Digital & Benefits

• Comprehensive medical, dental, and vision insurance
• 401(k) with company match
• Flexible PTO plus 12 paid holidays and paid sick leave
• Paid parental and family leave
• Lifestyle spending account
• Tuition reimbursement
• Cell phone stipend