Senior Full-Stack Software Engineer

Job Description

Job Description

Position Overview

Kollabio is building an AI-native platform designed to transform how organizations manage knowledge, workflows, and decision-making. We are seeking a Senior Full-Stack Software Engineer who operates with ownership and delivers systems-ready code at scale. You will own significant portions of the platform across the entire stack, translating product intent into clean system design and production-ready implementation.

This is a systems-oriented engineering role for someone who builds with structure, clarity, and durability. You'll work in a focused, high-accountability environment where architectural thinking, disciplined execution, and long-term maintainability are non-negotiable. You're comfortable navigating ambiguity, making pragmatic tradeoffs, and delivering robust solutions with minimal oversight.

AI-Native Engineering: We are an AI-forward engineering team. You will be expected to use AI-assisted development tools (Cursor, Windsurf, Claude Code, GitHub Copilot) as part of your daily workflow—not as an experiment, but as a core productivity and quality multiplier. You'll also design and integrate AI/LLM capabilities directly into our products, translating AI innovations into measurable user value. Comfort with AI-augmented development is a baseline expectation for this role.

What You Will Own

• Design and implement modular, scalable backend services using NestJS and TypeScript

• Architect and build responsive front-end applications using Next.js, React, or Vue

• Integrate AI/LLM APIs into platform features, including prompt engineering and orchestration patterns

• Build and maintain CI/CD pipelines, infrastructure-as-code, and cloud-native deployments on AWS

• Translate product requirements into well-structured technical designs and decompose features into clean, independently deployable increments

• Enforce code quality through disciplined pull requests, peer reviews, and meaningful automated tests

• Ensure APIs are clearly documented and aligned with OpenAPI standards

• Contribute to architectural decisions, threat modeling, and DevSecOps practices within defined platform principles

• Participate actively in technical grooming, risk identification, and sprint planning

Requirements

Core Engineering

• 8+ years of full-stack development experience in production environments

• Deep proficiency in TypeScript across the entire stack

• Strong backend architecture experience using NestJS or comparable Node.js frameworks (Express, Fastify)

• Advanced experience with React, Next.js, or Vue for front-end development

• Experience designing, building, and scaling RESTful APIs

• Strong understanding of application state management, front-end performance, and responsive design

AI-Assisted Development

• Active, daily use of AI-powered development tools (Cursor, Windsurf, Claude Code, GitHub Copilot, or similar)

• Experience integrating AI/LLM APIs (OpenAI, Anthropic, etc.) into production applications

• Understanding of prompt engineering, token management, and AI-augmented system design patterns

Infrastructure & DevSecOps

• Experience with AWS services (EC2, ECS/EKS, Lambda, S3, RDS, CloudFront, IAM)

• Hands-on experience with CI/CD pipelines (GitHub Actions, GitLab CI, or similar)

• Working knowledge of containerization (Docker) and orchestration (Kubernetes or ECS)

• Familiarity with infrastructure-as-code (Terraform, CDK, or CloudFormation)

Process & Collaboration

• Experience working in structured Agile environments with clear Definition of Done standards

• Comfort operating in small, high-accountability teams with minimal oversight

• Strong written and verbal communication of technical decisions and tradeoffs

Preferred Experience

• Redis caching strategies and message queue architectures

• Experience building SaaS or enterprise platform products (not just client projects)

• Familiarity with federal compliance requirements (FedRAMP, NIST, ATO processes)

• Experience with monorepo tooling (Nx, Turborepo)

• Contributions to open-source projects or technical blog posts

• Active security clearance (Secret or above)

What Success Looks Like

• Clean architectural decisions with minimal rework

• Features delivered production-ready without “temporary” shortcuts

• Measurable productivity and quality gains from effective use of AI-assisted development tools

• Strong PR discipline and thoughtful, constructive code reviews

• Infrastructure that is reproducible, documented, and secure by default

• Clear communication of tradeoffs, risks, and technical debt implications

• Contributions that improve system robustness, observability, and developer experience over time

Who Will Thrive in This Role

• Engineers who prefer ownership over task lists

• Developers who think in systems and platforms, not just tickets and features

• Individuals who view AI-assisted development as a force multiplier, not a crutch

• Professionals who care about maintainability, security, and operational discipline

• People who are comfortable building in evolving, fast-paced environments with high expectations

About Kollabio

Kollabio is a design and engineering firm that creates human-driven, AI-empowered solutions for federal agencies, GovCon primes, and commercial enterprises. We combine Experience Thinking — practical design thinking with the how-to included — with Agile delivery and continuous deployment to ship measurable value in multiple increments and with continuous feedback loops.

Kollabio is an Equal Opportunity Employer.