Upstaff Developer Profile Directory

• Certified AWS DevOps Engineer Professional, FinOps Practitioner, Calico Operator; pursuing CKA and a postgraduate in ML/MLOps focused on AI infrastructure.
• 6+ years managing 20+ enterprise AWS accounts with strict multi-tenant isolation using cross-account IAM, External ID, and Transit Gateway.
• Kubernetes (EKS), IRSA, Calico network policies, event-driven architectures (SQS, EventBridge, MSK), and Terraform automation.
• Developed a multi-tenant FinOps portal enforcing tenant isolation via centralized role assumption; operational tooling in Python with boto3.
• Led zero-downtime major RDS upgrades, security hardening at scale, and incident response with root cause analysis and AWS Health triage.

• Experienced DevOps Engineer with 20 years in software engineering and with 6+ years in cloud infrastructure automation, specializing in AWS multi-account, multi-tenant environments.
• AWS Solutions Architect Professional, AWS SysOps Administrator, AWS Developer, HashiCorp Terraform Associate, and Kubernetes, among others
• Expert in Kubernetes (EKS), GitOps (Argo CD, GitHub Actions), and security tooling (Wazuh, Trivy, Prowler).
• AI Agent platform Stack: MicroVMs, Agent Governance, Sandboxing, Security, Containerization, Virtualization, Orchestration, and Scalability.
• Proven track record in large-scale migrations, CI/CD optimization, and SOC 2 readiness across finance, health, and telecom sectors.

• DevSecOps Lead & Solutions Architect with 21+ years in multi-cloud (AWS, GCP, Azure) infrastructure, specializing in Kubernetes, Terraform, Pulumi, and CI/CD automation.
• Expertise in building agentic AI and LLMOps platforms, including AzureAI Foundry for financial and healthcare domains.
• Proven track record delivering scalable, high-availability architectures using Kubernetes, ECS Fargate, and Cloud Run.
• Led architecture and delivery for major clients like Okta, Starbucks, and Rede Globo, managing cross-functional teams and budgets.
• Strong background in backend development with NestJS, Next.js, GraphQL, and Postgres, integrating complex fintech and healthcare systems.

• AWS Accredited Instructor and mentor, delivering training on cloud computing, DevOps, and security to diverse audiences globally.
• Experienced in DevSecOps practices, CI/CD pipeline troubleshooting, Kubernetes (EKS/AKS), and infrastructure as code with Pulumi.
• Proven track record in enterprise cloud migration, IT infrastructure projects, and cloud monitoring solutions for clients like PwC and Ipiranga.
• Lead multi-cloud specialist with expertise in AWS, Azure, GCP, and OCI, driving FinOps governance and cloud cost optimization.
• Skilled in designing and implementing secure, scalable cloud infrastructures using AWS Lambda, CloudWatch, Kinesis Firehose, and Python.

• Over 20 years in cloud infrastructure, and DevOps with expertise in AWS, GCP, Azure, Kubernetes (EKS, GKE, AKS), and Terraform, Linux administration. AWS SA, GCP, CKS, CKA, CKAD certificates.
• Led management of 300+ EKS clusters, implementing GitOps with ArgoCD, Helm orchestration, and zero-trust security using Kyverno and Istio.
• Automation with Ansible, Puppet, Python, and CI/CD pipelines using GitHub Actions, Jenkins, and Azure DevOps.
• Experience in multi-cloud migrations, container orchestration, observability stacks (Prometheus, Grafana, ELK), and incident management.
• Strong focus on security compliance (SOC2), federated IAM, zero-trust architecture, and scalable infrastructure as code.

• 7.5 years of Salesforce expertise including architecture design, development, and team leadership.
• Experienced in Apex, LWC, Aura, VisualForce, REST APIs, and Salesforce DX with extensive integration experience.
• Skilled in complex data modeling, automation (Flows, Process Builder), and migration using CI/CD pipelines.
• Led scalable Salesforce solutions for healthcare, fintech, and HR startups with cloud integrations (Azure, Mulesoft).
• Certified Salesforce Platform Developer II, Data Architect, and Application Architect with strong Agile and Scrum practice.

• Senior DevOps & DevSecOps Engineer with extensive AWS expertise including ECS, EKS, Lambda, and Terraform automation.
• Architected GitHub Actions pipelines for multi-account Terraform deployments, reducing costs and operational overhead. Authored open-source Steampipe plugins and CIS-compliant security controls across AWS, Azure, and GCP.
• Developed Kubernetes GitOps workflows with ArgoCD and Helm, managing multi-environment EKS clusters.
• Proficient in Java, Go, Python, Node.js, and Shell scripting, with strong background in CI/CD, cloud security, and infrastructure as code.

• 20+ years of experience in data mining, data analysis, and data processing. Unifying data from many sources to create interactive, immersive dashboards and reports that provide actionable insights and drive business results.
• 8+ years of experience with Tableau (Certified Tableau Engineer)
• Knowledge of performing data analysis, data modeling, data mapping, batch data processing, and capable of generating reports using reporting tools such as Power BI (advanced), Sisence(Periscope) (expert), Tableau (Advanced), Data Studio (Advanced)
• Experience in writing SQL Queries, Big Query, Python, R, DAX to extract data and perform Data Analysis - AWS, Redshift

• 20 years of SRE expertise delivering scalable, containerized infrastructure and fault-tolerant systems across multiple countries
• Firecracker expert with high-level command of security isolation and network isolation. Architected and tuned microVM sandboxes that provide true kernel separation and tightly scoped networking, setting a high bar for safe execution of untrusted workloads.
• Founder of Pullrun (pullrun.dev), a 12MB Rust-native universal runtime unifying OCI image execution across containers, VMs, Kubernetes, and AI agents with native MCP AI orchestration
• Proficient in Rust, Go, Python, Kubernetes, Docker, Prometheus, Grafana, Terraform, and Ansible.

• AVP - Technology Lead with 12 years in IT and 8+ years of architecture and platform engineering experience across regulated financial services.
• GCP-based Kubernetes platforms, IAM and data-risk controls, and a Gemini/Vertex AI-powered RAG agent shipped for a live trading platform.
• Architecting secure AWS production environments: Firecracker MicroVMs, 40+ clusters with Terraform;
• Background spans AWS and GCP environments, IT governance frameworks, cybersecurity and risk reviews, and coordinating transformation and migration work across engineering, security, and compliance teams, SOC2 and ISO 27001.
• Multi-layered data infrastructures (PostgreSQL, ChromaDB/PGVector, and Neo4j) for AI agents

• Experienced DevSecOps, Cloud& Platform Engineer with 10+ years in cloud infrastructure, AWS, Kubernetes, Ansible, Helm, Terraform, CI/CD pipelines
• Skilled in managing scalable, high-availability systems with expertise in AWS: EC2, S3, RDS, Lambda, CloudWatch, IAM
• Firecracker MicroVMs implementation and tuning
• Strong background in infrastructure as code, monitoring (Datadog, Grafana), incident management, services and workflows orchestration
• PostgreSQL deployment and tuning, OLTP, PGVector
• Event-driven architectures and streaming for real-time data processing: Kafka, SQS
• Hands-on in in network protocols, including BGP, MPLS, OSPF
• Degree in Electrical, Electronics, and Communications Engineering

• Senior Full-Stack AI Engineer and AI Systems Architect with 10+ years of experience building scalable, high-performance platforms for leading banks across Dubai, the United States, and Europe, as well as taking AI-driven startup products from MVP to production.
• Combines architectural expertise in React, Next.js, TypeScript with a strong business vision, designing cost-optimized Hybrid AI architectures that bridge legacy systems with modern Agentic workflows.
• Leading teams, mentoring engineers, and delivering products from MVP to profitability. 

• AI / LLM Solutions Architect and Senior .NET Engineer with 10+ years : enterprise-grade AI-enabled platforms and regulatory systems.
• .NET 8, ASP.NET Core, Python/FastAPI, LangChain, OpenAI/Claude APIs, RAG, vector search, and AI integration architecture.
• Led end-to-end architecture and implementation of German e-invoicing solution with AI document processing and structured invoice workflows.
• Strong background in microservices, DDD, CQRS, event-driven architecture, Azure/AWS cloud, Kubernetes, CI/CD, and production observability.
• Computer Science education with proven skills in backend, frontend, DevOps, testing, and AI platform engineering across insurance, banking, and regulatory domains.

• 15+ years with business analysis and data engineering.
• Data engineer on Databricks + Delta Lake daily: PySpark, Spark SQL, medallion architecture, job tuning, and cost control. Strength is reverse-engineering undocumented legacy warehouses (incl. SAP BW concepts) and reproducing the logic as maintained models and pipelines, with source-to-target reconciliation as the acceptance gate.
• Migration: source cutovers, six-provider schema unification into one canonical model, historical backfills and restatements. Dimensional Gold-Silver-Bronze model and the semantic layer. AWS Flue, MS Fabrick, Power BI.
• Domains: Fintech, payments, AML and regulatory reporting; US retirement & wealth; BMW.

• Engineer with 6+ years in C#, .NET Core, and backend system design.
• Skilled in cloud platforms AWS, and Azure.
• CI/CD pipelines and DevOps for efficient project delivery. Expertise in optimizing PostgreSQL and MS SQL queries.
• Front-end frameworks: React and Angular (4-16).
• Worked in HealthCare, IoT, and Fintech areas, as well as enterprise and Startups.

• 11+ years in native iOS (Swift), Android (Kotlin), and cross-platform (.NET MAUI, Xamarin) mobile development.
• Expert in platform migration (Xamarin to .NET MAUI, PCL to .NET Standard) and performance optimization.
• Proficient in MVVM architecture, RESTful APIs, custom controls, and AI-assisted development tools.
• Collaborated with international teams, notably German engineering teams at Miele and IBM Romania
• Engineering diploma in Electrical Engineering, skilled in C#, C++, .NET technologies, and DevOps tools like Git and Azure DevOps.

• Technical Team Lead with 16+ years in .NET, MAUI, Xamarin, React, and VueJs, leading mobile and web projects.
• 20 mobile apps in production.
• .NET MAUI since 2022 (NET 6). Published a book about .NET MAUI.
• Expertise in CI/CD, ASP.NET Web API, MVVM, N-tier architecture, and cross-platform mobile development.
• Strong background in software engineering principles and best practices, driving high-quality code and team productivity.
• Fluent in Romanian, English, and Italian, with experience in international project collaboration.

• Technology leader, Solution Architect, hands-on builder, and founder with 25+ years of experience designing and building software products and platforms across Agentic AI, cloud, automation, and workflow orchestration, Agentic AI, LLM orchestration, workflow automation, SaaS, and cloud platforms.
• Hands-on Solution Architect, CTO, Founder, Principal Architect, and Developer specializing in Agentic AI, LLM orchestration, workflow orchestration, durable execution, cloud architecture, distributed systems, and product platforms.
• Worked at startups and enterprises (IBM, Automation Anywhere, Stanford University)

• AI product & transformation lead | 8+ yrs product ownership, BA, enterprise delivery & AI workflows. Driving AI products & adoption at Rivian and Volkswagen Group Technologies (discovery→pilot→rollout→optimization).
• Expertise: process mapping, AI use-case prioritization, trade-offs, measurable adoption.
• Hands-on: agents, prompting, RAG, tool-use, workflow automation, evaluation, low-code prototyping.

CORE SKILLS AI

• Transformation: process mapping, use-case prioritization
• Agentic AI & LLMs: agents, prompting, RAG, tool-use, rapid prototyping
• Product & Delivery: roadmaps, PRDs, stories, ACs, Agile/SAFe
• Eval & Adoption: quality, enablement
• Leadership: workshops, alignment, exec comms

• Over 6 years of experience with high-volume data platforms (PySpark, Databricks), and orchestrating pipelines with Apache Airflow and Azure Data Factory. AWS and Azure cloud services for ELT processes.
• Delivered consulting services for Banking (Santander), Retail (Mango, Zalando), Insurance (Reale Seguros), and Industry (Telefónica, Técnicas Reunidas) on Databricks Lakehouse adoption and data platform strategy.
• Strong background in ML model industrialization, ETL processes, and optimization of Spark configurations
• Hosted the first Databricks User Group Meetup in Madrid and attended the DAIS 2025 in San Francisco.

• Ranked among the Top 10 local freelance Python engineers at the age of 17.
• Contributed to projects with a multi-million user base, focusing on backend scalability and production stability.
• Successfully launched and supported a USA educational platform used by students, tutors, and academic institutions.
• Represented the development team at the international Wefi Beyond Banking Summit, presenting a fintech product to a global audience.
• Built and maintained production-grade backend systems, automation tools, Telegram bots, and API integrations for fintech, crypto, payments, and business operations.

• Senior FullStack Engineer with 6+ years of experience delivering scalable web applications in healthcare, eCommerce, marketplaces, and Web3 domains.
• Proficient in React.js, Next.js, TypeScript, Node.js, PostgreSQL, GraphQL, REST APIs, and Web3 integrations including Wagmi and Viem.
• 3+ years on blockchain/Web3 projects: Expertise in building complex features such as crypto payment platforms, NFT marketplaces, multi-chain token launchpads, and real-time healthcare scheduling systems.

• Data engineer with 18+ years in distributed systems and data-intensive platforms, now focused on cloud ETL/ELT (Extract-Transform-Load and Extract-Load-Transform) pipelines and lakehouse architecture.
• Recent work: rebuilding a legacy on-premise SQL/shell/Python pipeline estate as medallion-layered Databricks/Delta Lake pipelines for a global investment bank, and building AWS-native batch and streaming pipelines (EMR/Spark, S3, Lambda, Step Functions, Kinesis) for aglobal financial market-data provider.
• Strong SQL and relational database design; dimensional modelling and data warehousing; data quality, lineage and governance in strictly regulated environments. 
• EU-resident in Sofia.

• 15 years of experience in software and data engineering. Expertise in designing and implementing cloud-native data lakehouse solutions using Snowflake, Azure Databricks, and Apache Kafka with CDC and Lambda/Kappa architectures.
• Proficient in Go, Python, SQL, PL/SQL, ETL, dbt, Airflow, Debezium, and CI/CD pipelines with GitLab, enhancing data ingestion and transformation workflows. AWS and Azure cloud services.
• Led development of zero-downtime upgrade features for VMware vSphere, holding patents for innovative software-defined data center upgrade methods.
• Data consulting for Neoshare AG, DSK Bank, OpenTag EOOD, VMware, CODIX S.A and IBM.

• Over 15 years of expertise in designing and implementing ETL/ELT, high-availability databases and advanced BI solutions across cloud and on-premises platforms, including Snowflake, AWS, Azure, and SQL Server.
• Proficient in SQL (T-SQL, PL-SQL), Python (NumPy, Pandas), MDX, and ETL tools such as dbt, SSIS, and Azure Data Factory, with strong experience in data warehouse architecture and migration projects.
• Solid foundation in computer science with MSc in Microsoft Information Technologies and hands-on experience in Microsoft BI stack, cloud data engineering, and agile methodologies, including SCRUM and Azure DevOps.

• A full-stack Typescript engineer with experience in SAAS, Enterprise, Fintech, Healthcare, and Games, end-to-end ownership, and ability to work fast.
• Seeking a challenging Senior Software Engineer position to deliver exceptional value to users and drive positive impact in our world, and apply extensive background in software engineering:
  • 7 years with PostgreSQL, Node.js (Express, Koa, Fastify), Nuxt, and Storybook.
  • 6 years with Vue.js (lead v1/v2->v3 migrations, VueFire, and Storybook component libraries, Game engine) and React.
• AWS, Azure, Serverless architecture (Lambdas); Containerized infrastructure, testing, performance, and CI/CD.

• Senior Embedded C/C++ Engineer with 6+ years in embedded systems, IoT, and network protocol development
• Experience with embedded Linux, Linux kernel modules, and system-level architecture across Linux and STM32
• Develops software components and firmware in C/C++ and Python, including drivers, communication stacks, and control systems
• Skilled with TCP/IP, UDP, TLS, LWM2M, and real-time data pipelines; experience with low-latency video and telemetry systems
• Debugging and profiling skills (GDB, OpenOCD, Wireshark); works with cross-compilation, Yocto, and CI automation

• 15+ years of experience in web development
• Front-End: JavaScript & TypeScript (React, Angular, Vue.js).
• Mobile: React Native.
• Back-End: Java (Spring Boot, JavaCV + FFmpeg for media processing), Node.js, Next.js, TypeScript, PHP.
• AWS Cloud infrastructure, Lambda/Serverless, SNS/SQS.
• Unit testing, integration testing, testing automation frameworks and tools
• M.Sc in Software Engineering, GAI, LLMs.
• Experience leading and mentoring a team of developers, including assigning tasks, providing guidance, and ensuring the team's success. Conducting assessments and interviews. Ability to motivate and train team members, resolve conflicts, and providing constructive feedback.

• Software engineer with 6+ years in backend/fullstack development (Node.js, TypeScript, microservices), specializing in serverless architectures
• Domain expertise in Travel/Vacations and Payment/Banking systems, currently working at Guesty (data distribution channel management, Booking integrations, payment APIs)
• Built scalable distributed systems with AWS Lambda, Kubernetes, MongoDB, Kafka/RabbitMQ; aware of serverless limitations (compliance, DB coupling, cost)
• Experience with Java, Rust, Solidity; delivered MVPs quickly (Next.js, MongoDB) and onboarded clients efficiently

• Full-Stack Developer with experience in Node.js, Nest.js, and Spring; React (pet projects with Vue).
• Backend expertise in microservices, MongoDB, PostgreSQL, and secure API design (OAuth, JWT, Webhooks). Experience with AWS, Azure, CI/CD, Docker.
• Domain experience: Fintech (SAAS Fintech/BI platform), and Healthcare (DUBAI, Event Management)
• Based in Tel Aviv, an Israeli citizen, open to on-site and hybrid work.

• Software Engineer with 9+ years of expertise in Java, Kotlin, and Spring Boot; DevOps and SRE, and Team Lead roles.
• 4 years with FHIR integrations (US Healthcare project until UA office lay-offs in 2022)
• Proficient in CI/CD pipelines, infrastructure as code (Terraform, Ansible), and monitoring tools (Prometheus, Grafana) with hands-on DevOps experience on OpenStack and cloud platforms.
• DB (MariaDB, MSSQL, MongoDB), messaging systems (RabbitMQ, ActiveMQ, Azure Service Bus), and integration with Shopify and FHIR standards.
• Holds a B.Sc. in Software Engineering

• DevOps Engineer with 5+ years of expertise in automating Azure and hybrid cloud infrastructures using Terraform, Terragrunt, and Azure DevOps.
• Proficient in Kubernetes (AKS), containerization (Docker), and scripting with PowerShell, Bash, Python, and Go to enhance deployment automation and operational efficiency.
• Experienced in managing identity and access with Entra ID, hybrid AD, and securing cloud environments using Defender for Cloud, Sentinel, and CrowdStrike.
• Skilled in building and maintaining CI/CD pipelines with Azure DevOps, GitHub Actions, and GitLab CI, supporting scalable and reliable application delivery.
• Location: Poland, EU timezone