Senior Backend Engineer

Role Description

At In Tandem, we build technology that helps families manage everyday routines and navigate life’s biggest transitions. Through our four brands—OurFamilyWizard, Cozi, FamilyWall, and Custody Navigator—we help families stay organized, communicate well, and foster healthy childhoods.

This is a senior engineering role for someone who has already made the shift to AI-native development. Your day is built around writing specifications, orchestrating agents, and reviewing the features they deliver. Your output is measured in features shipped and outcomes validated.

• Getting to know teammates, technology, and tactics.
• By day 60, you're operating our SDLC from planning through production release.
• Beyond month two, you grow into an autonomous operator.
• With foundational understanding gained, you'll inform platform-level change and find your team home.

Qualifications

• 5+ years of production software engineering, with demonstrable depth in a statically typed backend language (Java preferred; Kotlin, C#, or Go acceptable with strong backend systems experience).
• Fluency in spec-driven development.
• Daily hands-on use of AI coding agents as your primary development interface.
• Experience building and using skills, plugins, or custom agent workflows.
• Reviewer's judgment on AI-generated code.
• Strong knowledge of relational databases, ORM technologies, and API design.
• Object-oriented analysis and design using common design patterns.
• Proven experience delivering software from inception to production in a cross-functional team.

Requirements

• Java/Spring/Spring Boot background (our primary stack).
• Full-stack range across React/Web, iOS, or Android on top of backend depth.
• Experience with Docker and Kubernetes.
• Experience with Atlassian tooling for CI/CD.
• Experience with Confluent Cloud (Kafka).
• Experience with iterative, agile-based software delivery.
• Experience working across multiple product teams or in rotational capacities.
• Experience in family technology, legal technology, or complex platform environments.
• Contributions to shared AI-native tooling in your current organization.

Benefits

• Medical: In Tandem pays 100% of the premium for employees AND 99% for all additional family members.
• 401k: Up to a 4% match with immediate vesting.
• Paid leave for all new parents.
• Learning & Development stipend for employees.
• Paid Time Off: 11 Holidays + Winter Break (3 Days) + Volunteer Time Off (1 Day) + Floating Holiday (1 Day).
• Personal Time Off: 15 days for 0-1 years of employment, 20 days 1-3 years of employment.
• Supportive and flexible working environment – work from anywhere!