Nico Kalkusinski

Full-Stack Engineer • SaaS Founder • Forward Deployed Engineer

Hyper-generalist 5+ years of experience in Tech. Built two SaaS products: LanguageEverest, a language learning platform with AI tutoring, and CULTINEXT, an enterprise agricultural management system. Implemented over fifty automations & integrations between CRMs, ERPs, and business tools. Sharing knowledge through writing, events, and meetups when time allows. Worked in technical roles requiring direct customer interaction, partnership negotiation, and cross-functional collaboration. Native in English and Polish, professional in Spanish. Currently in Spain after living and working across four countries. Outside of work: dancing bachata and rethinking how people learn languages.

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Experience

Multiverse ComputingDec 2025 – Present

Software Engineer, Platform Engineering

Platform engineering in a regulated, security-sensitive environment supporting multiple internal and external products. Own production reliability, API evolution, security remediation, and CI/CD migration while improving developer experience across teams.

Qu8Sep 2025 – Nov 2025; Ad-hoc (Current)

BDR & Technical Solutions Architect

Worked as both BDR and technical owner from discovery through implementation, tailoring solutions to each customer context and turning commercial discussions into executable delivery plans. Continue supporting qu8 in an ad-hoc technical consultant capacity.

Neotic TechnologySep 2024 – Aug 2025

Technical Solutions Lead, Business Operations, Customer Success Manager

Led development of CULTINEXT agricultural SaaS from concept to market. Built 50+ business automations, established key CRM partnerships, and implemented systems that reduced client onboarding time by 65%.

LanguageEverestSep 2021 – Present

Founder & Full-Stack Software Engineer

Built and launched a complete AI-powered language learning SaaS. Architected real-time AI tutoring system with multi-tenancy, implemented LLM orchestration with task-specific model selection, and shipped production-ready PWA with CI/CD.

Resume and cover letter are in English only, regardless of selected locale.

Selected Work

Language Everest2021 – Present

Language learning B2C SaaS with real-time AI tutoring, active recall practice, 14k+ vocabulary items with full context, 30 languages supported. Features AI chat with streaming responses, context-aware corrections, all practice angles (writing, reading, speaking, listening), A1-C2 content and truly premium and modern UX on all devices.

Next.jsReactTypeScriptPostgreSQLSupabaseAICI/CD
Portfolio Website (This Page)2026

Multilingual portfolio platform built with Next.js App Router, React, and TypeScript to present experience, projects, and personal story in EN/PL/ES. Includes an AI-powered 'Ask About Nico' assistant, downloadable resume and cover letter files, locale-aware routing, and SEO-focused static delivery with metadata and sitemap generation.

Next.jsReactTypeScripti18nAI ChatSEOSSR
CULTINEXT Agricultural Platform2025

Enterprise agricultural management platform using Next.js, React, TypeScript, Supabase. Features include multi-tenancy, multi-layered security, Auth, bilingual support (EN/ES), type-safe everything, smart caching, automated deployments.

Next.jsReactTypeScriptSupabaseMulti-tenancyCI/CD
Task & Hour Management for Sensem2025

Daily time-tracking and project allocation system that eliminated paperwork by letting employees log hours against specific projects. Provided management and clients with live visibility into work progress. Replaced manual paper status updates and enabled angles for data-driven resource planning.

Bubble.ioLow-CodeBusiness ApplicationTime TrackingProject Management

As an Individual, in a Team, and in Ambiguity

How I Work

Individually, I move fast but never at the cost of clarity. Ownership end-to-end matters to me, so discovery, implementation, and production reliability stay in the same conversation from day one. I prefer shipping real progress over performing progress, and I treat quality as part of speed, not as something bolted on later. I proactively look for things to improve, fix, or add instead of idly waiting for tasks to be assigned. If something new shows up in tech, I usually know about it and try it the same day. In teams, I keep everyone in the loop and keep communication explicit. Over-communication is better than under-communication. A good team gets you miles ahead. When I give feedback, I give full context, direct feedback, and concrete proposals. I actively ask for feedback on my own work, proactively help others, and make a point of unblocking teammates when they get stuck. I do not throw loose ideas left and right: I validate first, pressure-test from multiple angles, and bring a draft people can build on instead of something that gets forgotten in five minutes. I am a high-volume doer and learner, comfortable jumping across docs, projects, and contexts and stitching them together quickly. I consume as much information as I can find. Ambiguity is often where I shine, because it gives my creative side space to take ownership, propose solutions, and act. I iterate fast, drop work when it stops moving the needle, and constantly test decisions against reality, constraints, and trade-offs. My weak spot is simple: my quality bar is very high, so I can keep polishing longer than needed. The output is usually strong, but if I do not control scope, it can burn extra time and energy.

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Capabilities

Development

TypeScript,Next.js,React,Node.js,PostgreSQL,Python,FastAPI,Django,Firebase,Supabase,N8N,Make,Zapier,GitHub,GitLab,CI/CD,APIs,OpenRouter,RPCs,Vercel,ArgoCD,Docker,K8s,Teleport,Rust,Grafana,Aikido,AWS,Clerk,LogTo,Sentry,Codex,Cursor,Claude Code,Creatio,Bubble.io

AI & Automation

LLM Orchestration,AI Workflows,Prompt Engineering,RAG,MCP,Model Training,Process Automation,Skills

Business Tools

Notion,Monday,Slack,ClickUp,Photoshop,Canva,WordPress,Calendly,Creatio CRM,Stripe,Raynet CRM,Atera

Leadership

Strategic Negotiation,Technical Consultation,Customer Success Management,Partnership Development,Team Leadership,Cross-functional Collaboration,Process Optimization,Growth Strategy

Education

University of Bradford

Bachelor of Science in Computer Science

Bradford, England

Colorado Mesa University

Bachelor of Science in Computer Science (Exchange Program)

Colorado, USA