Delavan Holdings is hiring two Software Engineers in Delavan, WI to build internal applications, system integrations, and AI-assisted automation in Python, TypeScript, and React on Azure. Full-time and on-site, working directly with the teams who use what you ship.Turn real operating-company problems into working software: internal tools, integrations between line-of-business systems, and AI-assisted automations that remove manual work.
Job Details- Job type: Full-time
- Schedule: Monday to Friday, day shift
- Work location: On-site in Delavan, WI 53115
- Benefits: [confirm standard Delavan Holdings package - health, dental, vision, 401(k), PTO]
Commutable from Lake Geneva, Elkhorn, Whitewater, Burlington, East Troy, Janesville, and Walworth County, and within reach of the Milwaukee, Madison, and Rockford metro areas.
We are hiring two software engineers into the Office of the CTO. This is a hands-on building role: you will work directly with the people who use what you ship, prototype fast, validate, harden what sticks, and retire what does not.
One of the more interesting parts of the job: our non-technical teams build their own automations with Claude, and part of this role is deciding which of those deserve to become real systems, then rebuilding them as production-grade software without losing what made them useful in the first place.
What You'll Do- Build and ship internal tools and applications end to end, across front end, back end, and data, that solve concrete operating-company problems
- Prototype quickly, validate with real users, harden what sticks, and replace or retire what does not
- Integrate line-of-business systems using their APIs, exports, and webhooks, building the custom glue where off-the-shelf options fall short
- Build AI-assisted automations and agent workflows where they materially reduce manual effort, applying the same engineering discipline as any other software
- Take automations that non-technical users built with Claude and rebuild them as production-grade, scalable software, preserving the original intent and logic while adding the reliability, security, and maintainability production requires
- Work directly with operating-company stakeholders to understand a problem, then translate loose requirements into shippable software with a fast feedback loop
- Keep everything in GitHub with code review, and write tests proportionate to what the solution touches
- Take work through design, build, test, and release, deploying through staged Azure environments with controlled releases
- Participate in sprint planning, backlog refinement, standups, reviews, and retrospectives, keeping work current in Asana and raising blockers early
- Document what you build: what it does, what it connects to, how it authenticates, and how it deploys
- Handle credentials, access, and data responsibly across entities, following least-privilege access, keeping secrets out of code, and respecting entity boundaries and data governance
- Design for resilience and adaptability, preferring simple architectures and open, portable formats that survive tool and vendor changes
- Support and monitor what you ship: reproduce, diagnose to root cause, fix, communicate status to affected teams, write the RCA, and run the lessons-learned review
- Track the impact and reliability of what you build, share reusable patterns and components with the team, and help prioritize which problems to take on next
Requirements
What We're Looking For- 3 or more years of experience in software engineering, full-stack development, or systems integration, shipping working software
- Working proficiency in Python and in TypeScript or JavaScript, with hands-on React experience building and maintaining web applications front to back
- Strong SQL, ideally PostgreSQL, and experience with an ORM such as SQLAlchemy, Prisma, or Entity Framework, including designing schemas and diagnosing slow queries
- Experience integrating systems through REST APIs, webhooks, and file exports, with common authentication patterns such as OAuth, API keys, and service accounts
- Comfort with a modern development workflow: Git and GitHub, code review, an editor such as VS Code, and writing tests as a routine part of the work
- Experience with Azure services and deployment patterns
- Sound security and data governance habits: least-privilege access, secret management, and careful handling of sensitive data across multiple entities
- A pragmatic, iterative working style, with good judgment about when scrappy is appropriate and when it is not
- Strong written and verbal communication, and genuine willingness to sit with non-technical operators and understand their work before writing code
What Sets You Apart- Hands-on production experience with LLM APIs, retrieval-augmented generation, or agent frameworks, with judgment about where AI genuinely helps and where it does not
- You have been the technical lead on a project, owning architecture decisions and guiding other engineers
- You have set engineering standards on a team: code review practice, testing expectations, CI/CD, or documentation
- You have mentored other engineers, formally or informally
- You have been the first or second engineer somewhere and know how to build for a team that does not exist yet
- Experience with event-driven architectures such as queues, pub/sub, or streaming, for example with Redis
- Experience deploying and operating production systems, including containers, serverless, CI/CD, and monitoring
- You have worked under financial-reporting controls or audit requirements such as change logging and access review
- You have trained users and driven adoption of something you built, rather than handing it over and moving on
- Background in automotive retail, hospitality, logistics, or multi-entity or holding company environments
Why Delavan Holdings- A small, senior team where you own real surface area instead of a slice of someone else's system
- Greenfield work: much of what you build will be the first version of itself at this company
- A portfolio spanning automotive retail, RV, hospitality, logistics, and fulfillment, which means genuinely varied technical problems
- AI is not a side project here. It is budgeted, used daily by leadership, and expected to be part of how engineering work gets done
- Direct access to the CTO and to the operators you are building for, with a short path from idea to production
- Based in the Lake Geneva region of southeastern Wisconsin, with an entrepreneurial, low-bureaucracy culture
