Senior Backend Engineer

In Tandem

Senior Backend Engineer at In Tandem developing AI-native solutions for family technology platforms. Collaborating with teams to deliver impactful features for families and professionals.

Posted 7/13/2026full-timeRemote • Minnesota • 🇺🇸 United StatesSenior💰 $120,000 - $140,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in production software engineering with a focus on statically typed backend languages, spec-driven development, and AI coding agents. Capable of architecting solutions, collaborating with cross-functional teams, and delivering software continuously to production.

Highest-signal resume keywords

Production Software EngineeringSpec-Driven DevelopmentAI Coding AgentsRelational DatabasesObject-Oriented Analysis and Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaKotlinC#GoAPI DesignORM TechnologiesHibernateSoftware DeliveryDesign PatternsBackend Systems

Soft Skills

CollaborationJudgment on AI-Generated CodeProblem Solving

Tools & Technologies

Claude CodeCursorGitHub Copilot AgentOpenAI CodexMCP ServersClaude SkillsCursor RulesCopilot Extensions

Industry Keywords

Agile RitualsCross-Functional TeamContinuous ProductionAI-Integrated Product Experiences

Tech Stack

Tools & technologies

GoHibernateJavaKotlinSDLC

About the role

Key responsibilities & impact

Getting to know teammates, technology, and tactics. Your first day, you'll pair with your manager and a colleague to set up your local environment and ship a bug fix — using our agent workflows end to end. The following 29 days involve connecting with engineers across the professional experience and Reporting to understand how we prioritize, plan, build, and deliver value on OurFamilyWizard. You'll get immersed in daily and weekly agile rituals, the API guild, and our internal skills and plugins ecosystem. By the end of your first month, you'll be running your own spec-to-ship cycles inside Pro Core's domain — the professional user experience and Reporting.
Try, learn, ship. By day 60, you're operating our SDLC from planning through production release — authoring specs, orchestrating multi-file agent work, and reviewing outcomes rather than lines. You'll have a broad understanding of our backend architecture and deeper expertise in the services Pro Core owns and the APIs powering both the professional user experience on OurFamilyWizard and our Reporting product. You'll ship to production several times a day and start contributing skills and plugins that the rest of engineering can reuse.
Solidifying the foundation. Beyond month two, you grow into an autonomous operator — architecting solutions to complex problems, defining specs sharp enough that agents can execute them, and calibrating when a problem needs human hands vs. agent iteration. You'll partner with cross-functional teammates and leadership to shape execution plans for new features. We'll start conversations about long-term team alignment between days 30–60 and target a 3–4 month rotation.
Accelerate growth. With foundational understanding gained, you'll inform platform-level change and find your team home. Complex product problems, scale and modernization challenges, and the frontier of AI-integrated product experiences will establish you as a subject-matter expert and expand your ownership.

Requirements

What you’ll need

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: you can point to specs you've authored and features an agent shipped from them
Daily hands-on use of AI coding agents (Claude Code, Cursor, GitHub Copilot Agent, OpenAI Codex, or similar) as your primary development interface — not as autocomplete
Experience building and using skills, plugins, or custom agent workflows (MCP servers, Claude skills, Cursor rules, Copilot extensions, or equivalent) that your team or others reuse
Reviewer's judgment on AI-generated code: you can articulate failure modes, catch hallucinations, and decide when to accept, iterate, or take the keyboard back
Strong knowledge of relational databases, ORM technologies (Hibernate or equivalent), 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 that ships continuously to production.

Benefits

Comp & perks

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!