Senior Software Engineer
Summary
Senior on-site engineer at Upper Hand (sports/fitness SaaS in Indianapolis) who leads software projects end to end — scoping, design, delivery, rollout — while writing production code in Ruby on Rails, React, Java, and PostgreSQL. Also serves as the team's AI-enablement lead, setting AI-assisted development workflows and mentoring mid-level and junior engineers.
*This is an in-person role at our office in Indianapolis, Indiana. We will not consider remote candidates.*
JOB SUMMARY
You lead software development projects end to end — scoping, technical design, delivery, and rollout — while writing production code across Ruby on Rails, React, and Java. You think in service boundaries, you raise the engineering bar around you, and you have made AI-assisted development a measurable advantage for your whole team, not just for yourself.
OUR STACK
Ruby on Rails · Java · React · PostgreSQL · Node.js · Microservices · Metabase · REST/GraphQL APIs · GCP · Git · CI/CD · AI-assisted development
WHAT YOU'LL DO
- Lead software development projects end to end — scoping, technical design, execution, rollout, and post-launch measurement
- Own the architecture and implementation of features spanning React front ends, Rails and Java services, and PostgreSQL
- Define service boundaries, API contracts, and data models across our microservice architecture
- Serve as the team's AI-enablement lead — establish the workflows, patterns, and guardrails for AI-assisted development, and teach mid-level and junior engineers to use them well
- Mentor mid-level and junior engineers through design reviews, pairing, and 1:1 guidance
- Set coding standards, review practices, and architectural patterns across the team
- Drive PostgreSQL optimization — query tuning, indexing, partitioning, connection pooling, replication
- Own technical risk assessment and mitigation for major feature releases
- Champion observability — logging, alerting, and monitoring best practices in GCP
- Collaborate with engineering leadership on roadmap planning and capacity estimation
- Evaluate and introduce new tools, libraries, and approaches with disciplined rigor
- Participate in the on-call rotation and lead incident response
WHAT YOU BRING — TECHNICAL (ALL REQUIRED)
- 6+ years building and shipping production software, including 2+ years as the technical owner of projects or a team
- A proven track record leading software development projects end to end — scoping, design, delivery, rollout, and accountability for the outcome. Be ready to walk us through two projects you led.
- Ruby on Rails in production — you have owned Rails services and their data models, not just contributed tickets to them
- React in production — component architecture, hooks, state management, and front-end testing. TypeScript strongly preferred.
- Java in production — modern Java with Spring or an equivalent framework, plus the build and test tooling around it
- Microservice frameworks and distributed systems — service decomposition, inter-service communication, caching, queuing, and consistency trade-offs. Strangler Fig migrations a major plus.
- A proven record of using AI/LLM development tools to increase throughput — and of teaching others to do the same. Come prepared to describe your workflow, what you measured, and how your team's output changed, not just your own.
- Sound judgment about AI-generated code — you can tell when it is wrong, when it introduces a security or performance problem, and when to throw it out entirely
- Strong PostgreSQL engineering — performance tuning, indexing, schema design, and migrations at scale; comfort with analytics and reporting pipelines (Metabase or similar)
- Strong API design — REST and GraphQL, versioning, and backward compatibility; production Node.js experience
- Hands-on GCP or equivalent cloud experience (IAM, Cloud Run, Pub/Sub, BigQuery), containerized services, and ownership of CI/CD pipelines
- Automated testing discipline and security-conscious engineering — OWASP, auth/authz patterns, and PCI DSS or comparable regulated-data experience
WHAT YOU BRING — BEYOND THE CODE
- Leads through influence — engineers look to you for patterns, not just answers
- Coaches deliberately — you measure your impact partly by how much better the engineers around you get
- Executive presence in technical conversations — you hold your own with product, design, and business stakeholders
- Constructive and direct — you give hard feedback kindly and receive it professionally
- Strategic thinker who balances long-term architecture with short-term delivery pressure
- Visible culture carrier — you model the engineering values you want the team to have
NICE TO HAVE
- Experience leading a team through a platform migration or re-architecture, especially monolith to microservices
- Experience introducing AI tooling at an organization — standards, guardrails, or a formal enablement program
- Experience in vertical SaaS or sports/fitness tech
- Contributions to technical strategy or engineering hiring
- Experience with payments or other regulated data domains
HOW WE'LL EVALUATE
- A project-leadership deep dive on something you owned end to end — how you scoped it, what went wrong, and what you decided
- A practical working session with AI tools allowed and encouraged — we care whether the result is correct and whether you can defend every line of it
- A system design conversation on service boundaries, API contracts, and data modeling
- A short session on how you would raise this team's AI-assisted throughput in your first 90 days