Jobs Fullstack

Mirko Solutions is an international IT company specializing in web and mobile development for clients across the US, Canada, EU, and Australia. We are looking for an AI-Native Full-Stack Engineer who leverages AI as a core part of the software development lifecycle rather than just a coding assistant. In this role, you will build scalable web applications, rapidly prototype new ideas, integrate AI capabilities into products, and contribute to delivering innovative AI-first solutions.

Job Requirements:

• 4+ years of commercial experience as a Full-Stack Software Engineer
• Strong knowledge of React (Next.js is a plus)
• Strong experience with Node.js (NestJS and/or Express)
• Proficiency in TypeScript
• Experience working with PostgreSQL or other SQL databases
• Solid understanding of REST API design and integration
• Experience deploying applications using Vercel, Railway, Supabase, Render, AWS, or GCP
• Strong problem-solving skills and ability to work independently
• Excellent communication skills in English
• Daily use of AI development tools such as Claude Code, Cursor, Windsurf, GitHub Copilot, or similar
• Experience using AI for:
  • Code generation
  • Debugging and troubleshooting
  • Refactoring existing code
  • Rapid MVP development
  • Test generation
  • Documentation creation
• Strong understanding of AI-first development workflows
• Ability to effectively validate and review AI-generated code 
• LLM & AI Integration Experience

Nice-to-Have:

• Experience with LangGraph
• Experience with Model Context Protocol (MCP)
• Experience using n8n
• Experience with Supabase
• Experience with Vercel AI SDK
• Experience working with Vector Databases
• Docker
• AWS

Responsibilities:

• Design, develop, and maintain modern full-stack web applications
• Build new product features using React, Node.js, and TypeScript
• Rapidly prototype and deliver MVPs using AI-assisted development workflows
• Integrate LLMs and AI services into production applications
• Build AI-powered features such as intelligent search, recommendations, document processing, and conversational experiences
• Develop and maintain REST APIs and backend services
• Work with SQL databases and optimize application performance
• Review, validate, and improve AI-generated code to ensure production quality
• Collaborate closely with Product Managers, Designers, and other Engineers
• Continuously improve development processes through AI-native engineering practices

We provide the following for our employees:

• Competitive salary according to qualification
• Comfortable working environment
• Experienced colleagues
• Opportunity to work with innovative AI-driven projects
• Regular performance reviews
• Friendly atmosphere and support for professional growth

About the role

Small team, no legacy, no bureaucracy — just strong engineers making the right technical decisions together. This role lives in our Finance domain: settlements, reconciliation, bank integrations, and core banking.

Fintech experience is non-negotiable. You need to arrive with payments knowledge, take ownership fast, and become the go-to expert on settlement and reconciliation. The engineering bar is high — we expect independent judgment and quality delivery.
 

What you'll build

• Financial core — immutable ledger, settlement engine, IC++/blended pricing, rolling reserves
• Integrations — gateways, processors, KYC/KYB, SEPA/SWIFT via REST APIs
• Compliance workflows — Camunda 8, transaction monitoring, sanctions screening, SAR workflows
• Merchant & Ops portals — settlements, payouts, chargebacks, AML, disputes, underwriting
• Developer portal — API docs, integration guides, sandbox
• Reconciliation & reporting — full payment lifecycle; regulatory, scheme, and financial reports
• Quality — automated unit, integration, and E2E tests. No manual QA.
   

What you bring

• 6+ years Kotlin/Java (Spring Boot) — REST, JPA/Hibernate, transactions
• 3+ years Next.js/React — SSR, TypeScript, state management
• Strong PostgreSQL — complex queries, indexing, JSONB, migrations
• Webhook processing, event-driven systems, OAuth2/OpenID Connect
• Hands-on fintech experience — settlements, reconciliation, bank and core banking integrations
• AI fluency — daily use of Cursor, Claude Code, Codex, or similar with real engineering judgment
• Proactivity — you find problems before they find you and drive solutions to completion
• English — confident reading/listening; strong spoken English is a plus

About Us

Smart Capital Center is an end-to-end, AI-powered platform for Commercial Real Estate (CRE) investment and financial management. We power real-time underwriting, asset management, and portfolio analytics through a combination of live data, workflow automation, and AI-driven insights.

Operating at the intersection of Generative AI, finance, and real estate, we are building systems that digitize and simplify complex financial workflows.

Our clients include leading institutions such as JLL, Pacific Life Insurance Company, and KeyBank. We are a lean, high-performance team building category-defining technology in a $17 trillion industry.

The Role

We are looking for a Senior Fullstack Engineer / Team Lead who is equally strong in frontend and backend development and thrives in a hands-on, high-ownership environment.

This is a player-coach role—you will actively contribute to the codebase while helping guide technical decisions, system design, and engineering quality.

You will build end-to-end features across the stack, working on both data-intensive backend systems and high-performance, user-facing applications.

What You Will Do

Fullstack Development (Core Responsibility)

• Design, build, and ship end-to-end features (backend → API → frontend)
• Develop scalable backend services and APIs
• Build responsive, high-performance frontend applications (React/TypeScript)
• Own features from design through deployment
• Ensure clean integration between frontend, backend, and data layers

Frontend Engineering (Strong Focus)

• Build complex, data-driven user interfaces
• Translate financial workflows into intuitive UI/UX
• Optimize rendering performance and state management
• Contribute to component architecture and design systems

Backend Engineering

• Design and implement robust APIs and services
• Work with databases, data models, and integrations
• Handle performance optimization and scalability challenges
• Build systems that support real-time and data-heavy workflows

Technical Leadership (Lightweight)

• Guide decisions on architecture, design patterns, and best practices
• Lead by example through clean, maintainable code
• Participate in code reviews and mentor other engineers
• Help drive engineering quality without heavy people management

System Design & Architecture

• Contribute to scalable and modular system design
• Work on data flow, API contracts, and service boundaries
• Participate in POCs and technology evaluations
• Continuously improve system performance and reliability

Collaboration

• Work closely with Product and UX teams
• Participate in Agile ceremonies (standups, planning, retrospectives)
• Collaborate across teams to deliver high-quality features

Requirements

• 5+ years of software development experience
• Proven experience as a Fullstack Engineer

Frontend (Strong Requirement)

• Expertise in TypeScript, JavaScript (ES6+), HTML, CSS
• Strong experience with ReactJS
• Experience with state management (Redux, MobX, or similar)
• Ability to build scalable, maintainable frontend architecture
• Strong focus on performance and usability

Backend (Equally Important)

• Strong experience with backend development (Java/Spring Boot preferred, or Node.js/Python)
• Experience building scalable APIs and services
• Strong knowledge of SQL (PostgreSQL preferred)
• Experience with REST/GraphQL APIs and integrations

Core Engineering Skills

• Strong problem-solving and debugging abilities
• Solid understanding of system design and architecture
• Experience with Git and Agile/SCRUM workflows
• Ability to work across frontend, backend, and system layers
• Strong ownership mindset and attention to quality

Nice to Have

• Experience with data visualization (D3.js, ECharts, etc.)
• Familiarity with microservices or distributed systems
• Experience with cloud platforms (AWS preferred)
• Knowledge of caching, async processing, or event-driven systems
• Experience with DevOps, CI/CD, Docker
• Familiarity with design systems or component libraries
• Exposure to financial systems, analytics platforms, or real estate tech
• Experience with AI-assisted development tools (Copilot, Cursor, etc.)

Why Join Us

• Build in a massive ($17T) industry with real impact
• Work on complex, data-rich applications
• High ownership, minimal bureaucracy
• Collaborate with a strong, focused engineering team
• Flexible work environment
• Competitive compensation and benefits