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(2 reviews)

Dobrivoje

@dobrivojej

5.0

1.4

100%

🚀 Full Stack Engineer | AI Specialist 🤖

$30 USD / Hour

・

Serbia (5:42 PM)

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Joined on April 23, 2026

$30 USD / Hour

・

Results-driven Full Stack Engineer with 7 years of experience developing and delivering scalable web platforms, intelligent applications and production-grade AI solutions from concept to deployment. Strong background across frontend, backend and cloud architecture with hands-on expertise building modern user experience, secure APIs, automation systems and LLM-powered products that solve real business problems. Experienced in Python, JavaScript/TypeScript, Node.js, FastAPI, databases and AWS with a track record of shipping high-quality products in fast-paced startup and enterprise environments. Known for combining strong engineering fundamentals with practical AI implementation, clean communication, and a business-focused mindset that helps clients move quickly and grow efficiently.

Verifications

On time

100%

On budget

100%

Accept rate

100%

Repeat hire rate

50%

See all Python Developers in Serbia

Portfolio

- Built AI-driven outbound sales tools for prospecting, sequencing, lead prioritization, call preparation and sales coaching using LLMs, automation logic and real-time data enrichment.
- Developed backend services for AI dialer workflows, lead scoring, conversation intelligence, call summaries, CRM synchronization, and sales activity tracking.
- Created responsive frontend dashboards using React, TypeScript, Next.js and API integrations to help sales teams manage campaigns, monitor pipeline activity and review AI-generated insights.
- Improved outbound performance through AI recommendations, automated follow-up generation, signal-based targeting, analytics dashboards, A/B testing and scalable cloud deployment on AWS.

AI Outbound Sales Site Development

- Built AI-powered workflow automation features that extract data from websites, research leads, enrich contact information and qualify prospects using LLM-based reasoning and structured data pipelines.
- Developed full stack automation dashboards using React, TypeScript, Python, FastAPI and PostgreSQL to let users create, monitor and manage lead-generation workflows from one interface.
- Integrated third-party tools such as Google Sheets, Airtable, Notion, Linkedin-style data sources, CRM APIs, and email tools to automate repetitive sales and operations tasks.
- Improved AI workflow accuracy through prompt engineering, data validation, entity extraction, deduplication, retry handling and human-in-the-loop review for high-volume business automation.

AI-powered Website Development

- Built secure fintech web apps using React, TypeScript, Node.js, Python, PostgreSQL and AWS, covering user onboarding, account dashboards, transaction history, payment flows and admin portals.
- Developed backend APIs for wallets, payments, subscriptions, invoicing, KYC workflows, fraud checks and financial reporting, with strong validation, audit logging, encryption and role-based access control.
- Integrated third-party fintech services such as Stripe, Plaid, Wise, banking APIs, card processors, identity verification tools and payment gateways to support real-world money movement and financial data aggregation.
- Improved platform reliability and compliance readiness through CI/CD pipelines, automated testing, monitoring, transaction reconciliation, error handling and secure cloud deployment, helping fintech products operate safely at scale.

Full Stack development

- Built full stack real-estate platforms using React, TypeScript, Next.js, Node.js, Python, PostgreSQL and AWS, including property search, listing pages, agent profiles, saved homes and user dashboards.
- Developed backend APIs for property listings, MLS-style data ingestion, map search, filters, mortgage calculators, appointment scheduling, lead management and CRM workflows.
- Integrated third-party services such as Google Maps, Mapbox, Zillow/MLS-style feeds, payment APIs, email/SMS tools, calendar APIs and document-signing platforms to to support real estate transactions and user engagement.
- Improved platform performance and usability through fast search, geolocation, image optimization, caching, analytics, responsive design, SEO, automated testing and cloud deployment, helping buyers, renters, agents and property managers use the platform smoothly.

Full Stack Development

- Built secure healthcare web apps using React, TypeScript, Next.js, Python, PostgreSQL and AWS, including patient portals, provider dashboards, appointment booking, intake forms and admin panels.
- Developed backend APIs for patient records, scheduling, telehealth workflows, lab results, prescription/referral tracking, clinical notes, billing support and healthcare document management.
- Integrated healthcare and communication services such as EHR/EMR systems, FHIR/HL7 APIs, Stripe billing, Twilio SMS, email notifications, calendar APIs, video consultation tools and secure file storage.
- Improved security, reliability and compliance readiness through role-based access control, audit logging, encryption, data validation, automated testing, monitoring, CI/CD and HIPAA-aware cloud deployment.

Full Stack Development

AI Outbound Sales Site Development

AI-powered Website Development

Full Stack development

Full Stack Development

5.0 · 2 Reviews

2 Reviews

Website architecture

Working with Dobrivoje was a great experience. They demonstrated strong full-stack development skills, from designing the architecture to implementing frontend and backend features. They understood requirements quickly, provided valuable technical suggestions, and delivered high-quality, maintainable code. I would definitely recommend Dobrivoje for complex full-stack development work and look forward to collaborating again.

Android

Amazon Web Services

Android App Development

Android SDK

+1 more

AI Specialist / Full-Stack AI Developer

Dobrivoje is a highly skilled full-stack developer with strong problem-solving abilities. They delivered clean, scalable solutions and communicated effectively throughout the project. The quality of work exceeded expectations, and I would highly recommend them for future development projects.

Python

Django

Web Development

Full Stack Development

Backend Development

+4 more

Senior Full Stack AI Engineer

May, 2024 - Mar, 2026

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1 year, 10 months

Deel

May, 2024 - Mar, 2026

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1 year, 10 months

- Built AI-powered workflow tools using Python and LLM APIs to support global payroll, HR operations and compliance automation across distributed workforce systems. - Developed secure services for employee onboarding, contractor management, document processing and payroll-related workflows. - Integrated retrieval-augmented generation workflows with internal knowledge sources to help support teams answer payroll, contract and compliance questions faster and more consistently.

San Francisco, United States

May, 2024 - Mar, 2026

•

1 year, 10 months

Full Stack Engineer

Jun, 2021 - Apr, 2024

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2 years, 10 months

Airbyte

Jun, 2021 - Apr, 2024

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2 years, 10 months

- Built full stack features for data integration platform using React, TypeScript, Python, Java, REST APIs, Docker and PostgreSQL to support source-to-destination data movement. - Developed connector management workflows that helped users configure, test, monitor and troubleshoot data syncs across APIs, databases and SaaS platforms. - Enhanced services for sync scheduling, job orchestration, connection status tracking, schema discovery and error handling across large-volume ETL pipelines.

San Francisco, United States

Jun, 2021 - Apr, 2024

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2 years, 10 months

Software Engineer

Jul, 2019 - May, 2021

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1 year, 10 months

Turing

Jul, 2019 - May, 2021

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1 year, 10 months

- Delivered full stack application features for remote U.S.-based client projects using React, JavaScript, Node.js, Python, REST APIs, SQL and cloud-hosted backend services. - Built reusable frontend components, API integrations and backend workflows that helped client teams ship product features faster in distributed engineering environments. - Improved application performance by optimizing SQL queries, API response handling, frontend rendering behavior and server-side data processing logic.

Palo Alto, United States

Jul, 2019 - May, 2021

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1 year, 10 months

Belgrade University

2015 - 2019

•

4 years

Bachelor's Degree in Computer Science

Serbia

2015 - 2019

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4 years