
Stefan Stojanović
Full Stack Engineer

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About me
DevOps Engineer with coding skills | Web3 | Automations | AWS Integrations | Kubernetes Workloads | CI/CD Pipelines
Education

Belgrade Open School
-Advanced Undergraduate Program SOCIAL SCIENCESThe Future Studies program provides an answer to the question of how contemporary society is shaped by past experiences simultaneously opening issues of relevance to the contemporary, social, cultural, political and anthropological development of a modern man. It stimulates debates about the most important trends of the second decade of the 21st century. Likewise, it enables students to investigate the most important issues that will be posed in the future before modern humanity including but… Show more The Future Studies program provides an answer to the question of how contemporary society is shaped by past experiences simultaneously opening issues of relevance to the contemporary, social, cultural, political and anthropological development of a modern man. It stimulates debates about the most important trends of the second decade of the 21st century. Likewise, it enables students to investigate the most important issues that will be posed in the future before modern humanity including but not limited: the state-society relationship, the challenges of the post-democratic world, the development of a new multipolar world, the scope of globalization, sustainable development, the issue of identity and the nation-state, the political unification of Europe and the future of European integration, the media impact to the world, the knowledge society and new technologies, nanotechnology and the new technological revolution, the future of labor, genetics. Show less

The School of Electrical and Computer Engineering of Applied Studies
2018 - 2022Bachelor's degree Information TechnologyActivities and Societies: Teaching Assistant on the subject Engineering Mathematics where I educated students on usage of Matlab School of Electrical and Computer Engineering of Applied Studies in Belgrade is a state established, independent higher education institution. Shortened name of school is VISER.Information Systems study program aims to enable students to design, realize and implement information systems, as well as to apply modern information and communication technologies in business.The objectives of Informational Systems study program are:- training for design, implementation and… Show more School of Electrical and Computer Engineering of Applied Studies in Belgrade is a state established, independent higher education institution. Shortened name of school is VISER.Information Systems study program aims to enable students to design, realize and implement information systems, as well as to apply modern information and communication technologies in business.The objectives of Informational Systems study program are:- training for design, implementation and administration of information systems- training for designing and developing software applications for clients' needs, including dynamic web-based electronic stores;- training for e-business implementation activities in companies and financial sector- training for design, implementation and maintenance of computer networks;- training for management of small and medium sized enterprises, financial sector Show less
Experience

Viablee
Jun 2019 - Dec 2019Full Stack EngineerWorked on viablee.com, an e-commerce platform oriented to selling only sustainble products:- Implemented and maintained efficient and scalable web applications using Python, NodeJS and NextJs( React )- Integrated front-end elements with server-side logic and third-party APIs- Managed and maintained AWS servers to ensure high availability and optimal performance- Developed and maintained Python scripts to automate various tasks on the AWS EC2s- Created scripts to handle data processing, backups, and other routine operations- Worked closely with MongoDB and debugging issues caused by multi-threaded insertion Show less

BlueGrid.io
Dec 2019 - Aug 2022Software Engineer / DevOps EngineerI was mainly Included in CloudOps on DataGridSurface - a cybersecurity product that determines Internet Attack Surfaces by collecting and validating data on vulnerable public devices: - Implemented the whole current infrastructure using Python, Jenkins Pipelines, AWS EC2 ,S3 and Linodes that created pipelines between data collection and data validation on daily basis- Implemented a multi-threaded Python application that spins up multiple servers using Pulumi and takes screenshots using Xvfb- Database Experience with dynamoDB and MongoDB- Doing full-stack web development on our web app using NextJs with combination of NodeJs, AWS API Gateway and Lambdas- Lifting up CloudFront for S3 buckets to incorporate for faster content delivery. Also used awesome request signing feature that Cloudfront offers- Saved approximately 50% of work time per day by automating infrastructure processes- R&D on various cybersecurity tools and topics such as nuclei, masscan, zmap, axiom, scrying, nmap- Handling AWS Workloads on RDS, API Gateways, ECS, EFS, Load Balancers, Route53, Python Lambdas and CodeBuildmihot.io - a cybersecurity product that can check if your credentials have been compromised or not- Full stack development with NextJs and AWS- Data Engineering with Python - Making processes for data insertionInternal Projects:- Created Jenkins CI/CD Workflows- Created Docker Environments- Managed Linux staging and production environments for multiple projects which use PHP ( Laravel ), MySQL ,mongoDB, NodeJS, React ,Vue.js- Setting up Nagios ( Infrastructure Monitoring Tool ) and nrpe agents across multiple boxesInventiveness proved to be effective on many activities such as:- Writing tech blogs ( Kubernetes and AWS, AWS Lambdas, AWS DynamoDB )- Brand Ambassador; Conference Speaker- Creating content ( Developer Struggles ) Show less

BlueGrid.io
Nov 2022 - Sept 2024DevOps EngineerWorking on a DeFi protocol that solves problems of inefficiencies on the current trading market by making a system that executes orders over time rather then having instant finality:- Containerization of services with Docker- Making a configuration system in Python apps by using hydra config- Handling in-code migration from Python brownie to Apeworx for smart contract management and deployment- Planing, working on and automating on-premise Kubernetes clusters with microk8s and k0s- Setting up monitoring, logging and alerting stack with Prometheus, Grafana, Loki, Promtail, Cloudwatch and Cloudwatch Logs, Sentry- Automating deployments of a Geth private testnet and Avalanche private subnet using Pulumi - Automating infrastructure and multiple environments staging/qa/prod with Terraform and Pulumi and among those: AWS EKS stack, RDS Postgres, ElastiCache, IAM roles and permissions, ELBs, Auto Scaling Groups, Karpenter- Setting up Cloudflare Domains with Cloudflare Proxying and WAF to enhance system security- Building Kubernetes stack ( deployments, services, stateful sets ) for all applications with Kustomize from scratch- Integrated CI/CD pipelines using Bitbucket Pipelines, deployed with ArgoCD, and later transitioned to Pulumi Operator for IaC-based workflows- Mentoring and managing coworkers in Infrastructure team- Actively participated in planning, coordinating, and executing software releases- Working and collaborating with people of different cultures across different timezones Show less

AIESEC
May 2023 - May 2023Conference SpeakerAs a part of OPEN IT Conference ( https://www.linkedin.com/showcase/open-it-aiesec/ )an on behalf of bluegrid.io, presented blockchain topic "How to keep up with everchanging technologies ? Web2 vs Web3" along with a co-worker Ilija Jovanovic.We covered:- Current Web2 development workflows- How does Web3 help us ?- Web3 Technologies used in development- Challenges of developing applications in Web3- Most widely known areas of blockchain implementations-What are NFTs ? Why use them and the most famous collectionsWe also held a workshop where students were able to create their own NFT which we later on showed them how to deploy on public testnet using IPFS and JS with RedHat Show less

PeerSpace
May 2023 - May 2024Co-Founder / Head of InfrastructurePeerSpace makes it easy to build, deploy and host your decentralized websites permanently on Arweave,while having the power of Web3 domains seamlessly integrated.At PeerSpace, I am Co-Founder / Head of Infrastructure. My responsobilities included: - Using GCP ( because their startup package was the best ) to serve, deploy and maintain our app - Backend development of API with Python, FastAPI + Redis - Engineered a pipeline system for building and deploying decentralized React websites by using docker containers to encapsulate website builds - Implemented Bundlr integration to seamlessly upload build files to Arweave - Integrated CI/CD pipeline with Github Actions and Netlify deploymentsAs the team was limited in how much we need to do, I also jumped in to do product work: - Gathering target groups that we could reach out for idea validation - Researching which protocols leverage permanent decentralized storage ( redstone.finance, mirror.xyz, paragraph.xyz etc. )This product is currently on hold as additional funding is needed Show less

DeSciWorld
Jun 2023 - Jun 2023Conference SpeakerI had a chance to be a speaker at a DeSci World confrence held in Belgrade in June as a part of ETH Belgrade Blockchain Week. Along with Nikola Pavlov we talked about Decentralized Storage / Permaweb and how do we see it become beneficial in decentralized science. Topics we covered:- What is decentralized storage ?- Why go decentralized ?- Use cases in decentralized science- How to achieve permanence ? and- What are our predictions for the next 10 years

Career launch
May 2024 - nowTechnology Advisorcareer launch is a digital career advancement platform focused on connecting people with experts in HR industry and career coounselling. We want people to get recognized by giving them the skills needed for progressing further in their career.
Licenses & Certifications

Web3 Petnica
Petnica Science CenterJun 2023- View certificate

Web3 Academy - Development Track
Srbija InoviraApr 2023
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