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Senior OnBase Developer

Quincy, Massachusetts - Posted on October 31, 2025
Published By Timothy Mason

Trillium Professional is now seeking a Senior OnBase Developer in Boston, MA for a hybrid position.

Our client is seeking an exceptional individual to join the MassAbility application development team as a Senior OnBase developer. This is an exciting opportunity to join a skilled team and contribute to a critical and highly visible project. This role will be responsible for designing, developing, and maintaining our enterprise case management solutions using the Hyland OnBase platform to support critical disability services and case management operations. The primary work location for this role is 40 Broad Street Boston; however, this position is currently a remote telework position. The candidate would be expected to report to the primary work location with 24-hour notice, occasionally and regularly if/when telework guidelines change.

The work schedule for this position is Monday through Friday, 8:45 AM to 5:00 PM EST. Pay rate is $80/hour.

Key Responsibilities:
•    Design, develop, and implement OnBase solutions that meet business requirements. 
•    Develop and maintain custom workflows, Unity Forms, scripts, and integrations using OnBase APIs and .NET framework. 
•    Write efficient SQL queries and manage database interactions related to OnBase. 
•    Collaborate with business users, analysts, and technical teams to gather requirements and translate them into robust solutions. 
•    Ensure solutions comply with accessibility standards (ADA, WCAG) and support assistive technologies (JAWS, NVDA, Dragon). 
•    Test and troubleshoot solutions thoroughly to minimize impact and cascading issues. 
•    Prepare and document solutions for deployment, working closely with deployment teams. 
•    Mentor junior developers and provide technical guidance to cross-functional teams. 
•    Support integration efforts with external systems (ERP, HR, CRM, etc.) using APIs or other middleware. 
•    Stay current with OnBase product updates and best practices to improve solution quality. 

Apply now!

Qualifications 
•    5+ years of professional OnBase development experience required; 8+ years preferred. 
•    Strong knowledge of SQL and experience writing complex queries. 
•    Proficiency in JavaScript and .NET (C# preferred) for custom scripting and API integration. 
•    Experience with OnBase API (Unity API, REST API) for integrations and automation. 
•    Strong analytical and problem-solving skills with the ability to manage shifting priorities. 
•    Excellent communication skills and ability to work collaboratively with business and technical stakeholders. 
•    Experience mentoring junior developers or working in team environments is a plus. 
•    Experience building ADA-compliant solutions and working with accessibility tools like JAWS and Dragon is a plus 
•    Active Hyland OnBase certifications is a plus

 


Trillium has been recruiting and placing professionals for over 30 years. From Fortune 100 companies to small businesses, our philosophy remains the same: to achieve excellence by providing quality employees and an uncompromising level of service. We believe in honesty, integrity, and a simple philosophy of providing value to our customers and our employees. We strive to be unsurpassed in the recruitment and placement of quality and skilled professionals. Trillium is an Equal Opportunity Employer.

Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for the employers and the California Fair Chance Act.

By applying to this job, I agree to receive electronic communications including SMS text and email regarding future opportunities, referral bonus incentives, and other promotions from Trillium. You may opt out at any time from future communications by responding STOP to any electronic communication. You may view our full privacy policy at https://trilliumstaffing.com/jobs/privacy/.

Trillium offers a comprehensive benefit package that includes the ability to participate in health insurance and retirement plans, paid holidays, state required leave, and vacation days, if applicable. Trillium’s offerings are dependent on the state in which the assignment is located, length of time worked, and may change depending on assignment. Benefit packages for direct hire placements vary based on the client company.

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