What are the responsibilities and job description for the Senior Full Stack Engineer position at Planstin?
Advance Your Career at Planstin
Located in Southern Utah, Planstin is at the forefront of benefits administration and business services. We simplify health insurance for employers and individuals, emphasizing cost-effectiveness and excellent service in a complex market. As our company grows, we’re looking for talented individuals eager to progress in their careers.
About The Role
We are looking for a Senior Full Stack Engineer to help build out the next generation of the Planstin Membership Platform—a complex system that spans membership management, pricing engines, CRM integrations, ETL pipelines, and an evolving AWS-based microservice architecture. In this role, you’ll work directly with the founder/architect who built the current system, take ownership, anticipate problems before they surface, and propose thoughtful solutions. The right engineer must be comfortable adapting their plan when the business direction shifts. This is not a narrow feature-factory role. We need someone who can see the whole system, understand how the parts interact, and help push the architecture forward.
Backend (Primary)
130,000 - 160,000 USD per year(STG)
Located in Southern Utah, Planstin is at the forefront of benefits administration and business services. We simplify health insurance for employers and individuals, emphasizing cost-effectiveness and excellent service in a complex market. As our company grows, we’re looking for talented individuals eager to progress in their careers.
About The Role
We are looking for a Senior Full Stack Engineer to help build out the next generation of the Planstin Membership Platform—a complex system that spans membership management, pricing engines, CRM integrations, ETL pipelines, and an evolving AWS-based microservice architecture. In this role, you’ll work directly with the founder/architect who built the current system, take ownership, anticipate problems before they surface, and propose thoughtful solutions. The right engineer must be comfortable adapting their plan when the business direction shifts. This is not a narrow feature-factory role. We need someone who can see the whole system, understand how the parts interact, and help push the architecture forward.
- This position is based in St. George Utah but we'll consider full time remote and out of state for the right candidate.
Backend (Primary)
- A large Nest.js backend powering:
- Distributed services deployed with AWS CDK (Lambda, RDS, S3, EventBridge, ECS/Fargate, etc.)
- React SPA for internal and external membership tools
- Admin dashboards, configuration UIs, step-based workflows, and data visualization
- Integration with partner systems
- AWS CDK (TypeScript) for infrastructure automation
- CI/CD optimization
- Observability, error handling, and performance tuning
- Implementing and refining a high-complexity relational schema
- Helping convert messy real-world data into stable, normalized structures
- Identifying inconsistencies in business rules — and proposing solutions
- Spot architectural risks early
- Suggest simplifications and abstractions
- Build tooling when manual work becomes repetitive
- Improve reliability of pipelines ingesting external data
- Question things that “don’t smell right”
- Understand the why behind every model, process, or mapping
- Ask great questions
- Provide options, not just code
- 6 years professional experience building production systems
- Deep experience with:
- Node.js / TypeScript
- Nest.js (or equivalent DI-based frameworks)
- React
- AWS (Lambda, S3, RDS, IAM, EventBridge, API Gateway)
- AWS CDK (TypeScript)
- Relational databases (PostgreSQL strongly preferred)
- SQL, migrations, schema design, performance tuning
- Strong grasp of system architecture and distributed workflows
- Ability to reverse-engineer complex datasets and design clear abstractions
- Comfortable reading messy real-world data and making sense of it
- Very strong debugging and production-troubleshooting skill
- Writes clean, maintainable, well-structured code
- Proactively identifies problems and proposes solutions
- Comfortable shifting direction when priorities change
- $130,000-$160,000 base salary DOE
- 12 paid holidays plus 3 weeks of paid time off to balance work and life.
- Comprehensive insurance coverage including health, dental, vision, and accident plans tailored for your well-being.
- Discounted membership to Zion HealthShare.
- Free membership for you and your dependents to Primestin Care Clinic.
- Invest in your future with a 401k plan backed by a solid 4% match from us.
- Free snacks and regular lunches available onsite.
130,000 - 160,000 USD per year(STG)
Salary : $130,000 - $160,000
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