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Ajdin Lojic

@ajdinlojic

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Backend Software Engineer at Klika building Spiro’s Ruby on Rails CRM backend and ERP and e-commerce integrations.

Bosnia and Herzegovina

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What I'm looking for

I'm open to full-time, part-time, or contract opportunities, working remotely. I'm based in CET and flexible for US hours.

At Klika, I build backend services and integrations for Spiro, an AI-powered CRM used by 200+ manufacturers and distributors. I sync customer, order, and product data from systems including Epicor P21, NetSuite, and Shopify using Ruby on Rails and PostgreSQL.

I also built internal tools to show integration status and customer data, and automations for recurring integration and operations work. My work includes asynchronous workflows with Sidekiq and AWS services for file storage, processing, and encryption.

Previously at Klika, I developed WhatCampaign from early development to a pilot with its first clients, integrating Meta, Google, and Snapchat advertising APIs. I’ve also built React and Next.js frontend features at Trinity and Experfy, and the Scanspire website.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer (Backend)

Current

Klika

Jan 2026 - Present (10 months)

Build backend services, REST API endpoints and product features for Spiro, an AI-powered CRM used by 200+ manufacturers and distributors, on Ruby on Rails and PostgreSQL. Build and maintain ERP and e-commerce integrations (Epicor P21, NetSuite, Shopify and more), pulling data from customers' SQL databases and syncing customers, orders and products into Spiro.

Ruby on Rails PostgreSQL Sidekiq AWS S3 Lambda AWS ECS KMS Heroku REST APIs Epicor P21 NetSuite Shopify SQL Unique Job Processing CI CD

Software Engineer (Full Stack)

Klika

Sep 2024 - Dec 2025 (1 year 3 months)

Built an early-stage startup platform for media planning and launching ad campaigns across social networks from one place. Integrated advertising platform APIs (Meta for Facebook & Instagram, Google, Snapchat and more) for campaign creation and publishing.

Ruby on Rails React TypeScript REST APIs ActiveRecord Meta Facebook Instagram Google Ads Snapchat Twilio

Frontend Engineer (Freelance)

Scanspire

Mar 2024 - Dec 2025 (1 year 9 months)

Built the website for Scanspire, a penetration testing and security assessment company. Used Next.js server-side rendering (SSR) and static site generation (SSG) for fast first loads and SEO.

Next.js SSR SSG SEO

Software Engineer (Frontend)

Trinity

Feb 2024 - Aug 2024 (6 months)

Built frontend features for Texttelligent's automotive product, mostly customer and service-department communication flows that let car dealerships text customers from one compliant inbox. Developed TypeScript + React/Next.js applications with a consistent Material UI component system, working closely with backend engineers on API contracts.

TypeScript React Next.js Material UI API Contracts

Software Developer (Frontend)

Experfy

Aug 2021 - Dec 2023 (2 years 4 months)

Developed the frontend of Experfy's talent marketplace and hiring platform with React and Ember. Built responsive, cross-device interfaces and improved page speed and usability.

React Ember Responsive Design Performance Optimization