Freelance Flutter App Developer Jobs in Springfield, MA

Position Title: Full Stack Engineer

Location: Remote — EST Time Zone

Employment Type: Full-Time, Salaried Exempt

Schedule: Monday–Friday

About the Opportunity

Cascadience, a VIABILITY Company, is building Volio, an innovative AI-powered digital companion designed to support neurodivergent individuals, including people with ADHD, Autism, and Anxiety.

Volio is evolving into an engaging student companion that combines AI-powered support, intelligent scheduling, long-term memory, and gamified experiences to help reduce cognitive overload and support independence.

This is a unique opportunity to join a startup initiative backed by a 56-year established organization. As a Full Stack Engineer, you'll help build and scale the technology behind Volio while working closely with product, operations, marketing, and external partners.

If you're a product-minded engineer who enjoys solving complex problems and wants your work to have a meaningful impact, we'd love to hear from you.

Key Responsibilities

• Build and maintain our Python/FastAPI backend running on AWS ECS Fargate.
• Develop and improve AI-powered multi-agent workflows using Amazon Bedrock and LangGraph.
• Build and optimize RAG pipelines and long-term semantic memory.
• Develop mobile features using React Native, Flutter, or native iOS/Android technologies.
• Create lightweight 2D gamification and student progression features.
• Integrate GPS/geolocation functionality for school and class-related experiences.
• Design and maintain data models across PostgreSQL, DynamoDB, and MongoDB Atlas.
• Contribute to AWS infrastructure, Terraform, and secure cloud architecture.
• Build and maintain CI/CD pipelines using GitHub Actions.
• Support mobile releases through Apple App Store Connect and Google Play.
• Monitor application performance using tools such as New Relic, OpenTelemetry, and AWS X-Ray.
• Collaborate with cross-functional teams to turn ideas into accessible, reliable products.

 Required Qualifications

• 3+ years of professional software engineering experience building production applications, APIs, or mobile applications.
• Strong experience with Python and preferably FastAPI.
• Experience with relational and/or NoSQL databases such as PostgreSQL, DynamoDB, or MongoDB.
• Experience with AWS cloud infrastructure and CI/CD automation.
• Strong problem-solving, communication, and collaboration skills.
• Ability to work independently and take ownership in a fast-paced startup environment.
• Genuine interest in accessibility, inclusion, and technology that improves people's lives.

Preferred Experience

Prior experience with any of the following is a plus:

• LangGraph, LangChain, Amazon Bedrock, or OpenAI
• React Native, Flutter, Swift, or Kotlin
• RAG, vector databases, or AI/LLM applications
• AWS ECS Fargate
• Terraform
• MongoDB Atlas Vector Search
• Google OR-Tools / CP-SAT
• Mobile application deployment
• Observability and distributed systems

 Benefits

VIABILITY is pleased to offer the following benefits to eligible full-time employees:

• Medical/Rx Insurance offered through Blue Cross Blue Shield (BCBS): Competitive medical coverage with two plan options for employees and their families.
• Health Savings Account (HSA): Employee-funded HSA with pre-tax payroll deductions for eligible healthcare expenses.
• Flexible Spending Accounts (FSA): Options include Health FSA, Limited Purpose FSA for dental and vision expenses, and Dependent Care FSA.
• Dental Insurance (BCBS)
• Vision Insurance (BCBS)
• Life Insurance: Life insurance benefit equal to 100% of the employee’s salary.
• 403(b) & Roth Retirement Plans: VIABILITY matches contributions up to 4%, subject to annual review. Employees may also contribute on a post-tax basis through the Roth plan.
• Paid Time Off (PTO): Available for vacation and personal time after three months of continuous employment, with additional PTO based on length of service.
• Paid Holidays: VIABILITY observes 11 paid holidays annually.
• Long-Term Disability Insurance: Eligible employees receive a percentage of their salary following the applicable elimination period.
• Tuition Reimbursement: Reimbursement of up to $1,000 per fiscal year for eligible full-time employees; part-time employees may be eligible for up to $500.
• Employee Emergency Assistance Grant: Eligible employees may receive up to $1,200 to help address unexpected and disruptive circumstances.
• Employee Referral Bonus: Employees may be eligible for a referral incentive when a referred candidate is hired and begins employment with VIABILITY.
• Employee Assistance Program (EAP): 24/7 confidential assistance for employees and their dependents, including access to counseling and other support services.

The description of these benefits is subject to the terms and conditions of the applicable insurance policies and plan documents and may be changed at VIABILITY’s discretion.

Cascadience and VIABILITY are committed to creating an inclusive, collaborative, and mission-driven workplace. We value diverse perspectives and seek individuals who are passionate about using technology to create meaningful, accessible, and empowering experiences for the people we serve.

For more details visit cascadience.org