Senior Software Engineer

Collaboration.Ai • Minneapolis, MN

13d

About The Position

Collaboration.Ai is seeking a Senior Software Engineer to join their mission-focused, AI-powered software and services company. This role involves shipping product across the full NetworkOS stack, from Kotlin/Spring Boot microservices to Next.js/React interfaces, ensuring the platform remains reliable, performant, and architected for significant growth in regulated enterprise and defense environments. This is a hands-on execution role within a small, senior team where engineers own complete vertical slices of the product, from database schema to UI, with direct impact on the roadmap and high visibility from day one. The company emphasizes whole-stack ownership, weekly production releases, and code that drives the roadmap forward.

Requirements

• 5+ years of professional software engineering experience, backend-weighted with real production frontend contributions.
• Strong proficiency in Kotlin and Spring Boot (or Java/Spring with willingness to adopt Kotlin).
• Working proficiency in TypeScript and React (Next.js preferred) — able to ship UI features within an established design system.
• Solid experience with Python and modern frameworks (FastAPI preferred).
• Experience with PostgreSQL, relational database design, and migration management.
• Proven track record in continuous delivery environments with automated testing.
• Hands-on Docker, Kubernetes, and AWS; strong grasp of microservices patterns, API design, and distributed systems.
• AI-native workflows — demonstrated ability to leverage Claude Code/Codex or similar agentic coding tools to accelerate development.
• US citizenship required (DoD contracting — IL4/IL5 environments — and FedRAMP compliance).

Nice To Haves

• GraphQL API development and schema design at scale.
• LLM/AI integration patterns (structured outputs, LLM workflow orchestration).
• Security-conscious development and compliance frameworks (SOC 2, NIST 800-171/800-53).
• Depth in AWS services (EKS, RDS, S3, Secrets Manager) and DataDog observability.
• Greater Twin Cities, MN based.
• Open-source contributions or active technical community involvement.

Responsibilities

• Deliver features end-to-end, owning complete vertical slices (PostgreSQL schema, Kotlin service, GraphQL contract, Next.js UI) and shipping production features without waiting on handoffs.
• Own core API and service health by designing and maintaining GraphQL and REST APIs with clean domain boundaries, ensuring low latency and high reliability under growing load.
• Master the data layer by designing PostgreSQL schemas, optimizing queries for scale, managing zero-downtime migrations with Liquibase, and building effective caching strategies.
• Ship with confidence through comprehensive test suites (unit, integration, contract, UI) at 80%+ coverage, with CI/CD quality gates that catch problems before production.
• Build resilient systems using structured logging, distributed tracing, custom metrics, circuit breakers, and graceful degradation patterns.
• Elevate the team by mentoring mid-level and junior engineers through code reviews, architectural discussions, and pair programming.
• Automate with agents by building agentic primitives that make everyday full-stack work faster, embracing AI-native development.

Benefits

• Work that matters. We build AI-powered solutions for defense, healthcare, and regulated industries — SOC 2 and NIST compliance, FedRAMP readiness, and customers whose missions demand the most trustworthy software.
• AI-native by default. We build with AI, not just for AI. Agentic coding tools (Claude Code/Codex/etc.), agent SDKs and harnesses, MCP servers, and Agent Skills standards are how we work daily. You'll push the boundaries of what AI tooling can do across the full stack.
• Real ownership. High-autonomy culture on a small, senior team. You'll own outcomes end-to-end — and your work will be seen, used, and valued.
• Modern stack, no legacy drag. Cloud-native Kubernetes infrastructure, Kotlin and Next.js, continuous delivery — built for growth, not maintenance mode.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed