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Senior Developer – FileMaker Platform

MainSpring


Job Location:

Frederick, MD - USA

Yearly Salary: USD 75000 - 90000
Posted: 6 November 2026 (12 hours ago)
Application Deadline: 3 February 2027
Vacancies: 1 Vacancy

Job Summary

Job Location:Remote

Type:Full-time Mon-Fri (EST)

Number of Openings:1

Start Date:Immediately

Salary Range: $75000-$90000 annually

Clearance Required:None

MainSpring Inc. is looking for an experienced innovative and forward-thinking Senior FileMaker Developer. The Senior Developer is responsible for planning designing developing and implementing creative application solutions for a variety of government and commercial U.S. and international clients. Adherence to proven processes and standards outlined in the MainSpring Agile Development process is required. The ideal candidate is efficient exhibits meticulous follow-through and possesses the ability to prioritize competing demands effectively. If youre looking to join an organization with an exceptional work-life balance look no further.

Essential Duties and Responsibilities

  • Design develop andmaintain custom FileMaker applications across desktop web and mobile andmaintain scripts calculations layouts custom functions and automation workflows.
  • Architect and implement integrations with third-party applications and services usingAPIs and other external connectivity.
  • Administer monitor andoptimize FileMaker Server environments to ensure performance reliability security and availability.
  • Troubleshoot and resolve complexapplication performance data integrity and server-related issues.
  • Manage projects and enhancement requests including effort estimation scope definition risk analysis and timeline with business stakeholders to gather requirements and translate them into scalable technical solutions.
  • Implement data migration synchronization and integration strategies between FileMaker and external systems.
  • Create andmaintain technical documentation system architecture diagrams and deployment procedures.
  • Participate in application lifecycle management including testing deployment upgrades and support.
  • Ensure project development/featuresremain in scope and proactively communicate with the team and the client throughout the course of projects.
  • Provide budget and schedule updates to the Team Lead.
  • Meet/exceed billableutilization targets.
  • Maintain proficiency and certification in development platforms asrequired.

Requirements

  • Bachelors degree in a related fieldpreferred;orcomparable experienceisrequired.
  • Excellent communication and customer service skills.
  • Extended experience withthecompleteClarisFileMaker Platform and completion of all currently availableClaris certifications.
  • Ability to effectivelyleverage AI-powered development tools and coding assistants as a force multiplier for application design code generation troubleshooting documentation testing and productivity enhancement whilemaintaining strong engineering judgment code qualitysecurity and solution ownership.
  • Strong experience with API integration including:
    • RESTOData andGraphQL APIs
    • JSONXML and other data structures
    • OAuth and token-based authentication
  • Advanced troubleshooting and root-cause analysis skills within the FileMaker platform including experiencediagnosing and resolving:
    • Script performance issues
    • Data integrity concerns
    • Server performance bottlenecks
    • Authentication and connectivity issues
    • Complex application defects
  • At least onetandem partnerdevelopmentskill such asSharepoint Salesforce PHPVueJS AppleScriptorSQLadministration.
  • Mid-levelskills in JavaScript HTML and CSS especially in relation to FileMakerwebviewer interfaces and Klai (FMBetterForms).
  • Experiencewith or understandingof the AgileLifecyclerequired. Demonstratea strong history of success with developing and managing development projects.
  • Advanced knowledge of relational database and application design relating to FileMaker; Including scripting data parsing and the ability to search technical documentation.
  • Demonstratethe ability to work as part of an application development team; create task liststimelines anddeliverables; work to meet project schedulesdetermined by others.

About MainSpring

MainSpring is an IT strategy and consulting firm that arms organizations with the strategy tools and resources to grow. We foster a family-friendly innovative challenging fun working environment earning the distinction of being one of The Washingtonians 50 Great Places to Work and countless awardsfor employee programs growth and innovation.

  • Medical Dental and Vision coverage for employee and family
  • 401k company matched contributions 4% match on 5% contribution Employee contribute on the 1st day of the month after 30 days; Company contributes on the first day of the quarter after 1 year no vesting period!
  • Group Term Life and Accidental Death and Dismemberment coverage (company provided)
  • Short-Term and Long-Term Disability coverage (voluntary enrollment company provided)
  • Health Reimbursement Account (HRA) w/ medical coverage
  • 7 Paid Holidays 1 Floating Holiday
  • Paid Time Off (PTO)
  • Bonus plans
  • Tuition Reimbursement Program
  • Employee Assistance Program
  • Employee Referral Program
  • Dynamic Recognition and Rewards
  • Work with Industry-Leading Talent
  • Promotion and Advancement Tracks

Founded in 1993 MainSpring is headquartered in Frederick Maryland and supports a wide range of clients including businesses non-profits and government agencies.

Like our clients people tend to stay at MainSpring. If you think youre a match lets connect.


Required Experience:

Senior IC


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