Eduardo Hernacki
Senior/Principal Software & Cloud Engineer | SaaS · AWS · Rust · Elixir · TypeScript
Lead AI & Platform Engineer at Squer
Highlights
Full profile
Career: 15
Agent Platform Architecture & Delivery: Design and implementation of Claude Code agent tooling for a large engineering organisation, operationalised on AWS Bedrock AgentCore, with emphasis on governance, traceability, and compliance. Spec-Driven Development: Delivery of a pipeline that transforms unstructured notes into versioned specifications with Given/When/Then scenarios, tracker stories with acceptance criteria, and linked branches, ensuring requirements stay reviewable and traceable to implementation. Multi-Agent Automation: Delivery of a pipeline that turns approved specifications into code changes, composing implementation and verification stages with dedicated subagents, a bounded correction loop, and an unattended mode for CI. Team Enablement & Adoption: Growth of adoption from zero to approximately 47 active developers across three engineering tribes, backed by a decade of platform engineering in regulated industries and complemented by authorship of the contribution standards that govern the platform, including a design-document-first gate, a consumer override pattern, and component contracts.
Freelance · Remote
Cloud Architecture & Modernization: Design and implementation of AWS-based SaaS solutions (multi-account, serverless, containerized) with emphasis on scalability, resilience, and compliance. Software Architecture & Development: Delivery of SaaS platforms, backend services, and full-stack applications in TypeScript, Elixir, Rust and Python, ensuring maintainable and testable architectures (DDD, TDD). Team Enablement & Leadership: Advisory on AWS strategy, DevOps integration, and engineering practices, complemented by team enablement through code reviews, workshops, and mentoring. Business Alignment: Bridging of product vision with engineering execution through process streamlining and guidance on sustainable technology strategy.
Client from the Software Development Services Industry
Freelance · Remote
Team Enablement & Leadership: Enhanced team capabilities and delivery maturity; established clear engineering standards, provided architectural guidance, and strengthened stakeholder confidence through consistent delivery. CI/CD & Quality Engineering: Improved CI/CD pipelines, implemented comprehensive testing (unit, integration, e2e), and introduced BDD specifications bridging Product and Development. Process & Culture Improvement: Fostered code reviews, pair programming, and knowledge sharing; improved team accountability, resulting in a reliable delivery pipeline and greater transparency and predictability. Architecture & Delivery: Oversaw end-to-end delivery from requirements analysis through deployment, ensuring scalable and maintainable solutions.
Client from the Health Services Industry
Freelance · Remote
Compliance & Resilience: Designed and rolled out a multi-account AWS Backup & Recovery strategy (AWS Backup, Slack integration) with cross-region replication in Europe; implemented software supply-chain security with automated SBOM ingestion (GitHub Actions, Trivy Operator, Dependency-Track) and defined patching workflows for EKS/EC2 workloads. Event-Driven Architecture: Led on-site workshops for team leads and wrote internal guidelines on event-driven communication patterns, enabling consistent adoption across product teams. Application & Platform Modernization: Defined the migration strategy from legacy to next-generation EKS clusters; helped rationalize 100+ microservices to balance team autonomy with operational efficiency; streamlined Terraform code to reduce complexity and cost.
Client from the Credit Bureau Industry
Freelance · Remote
Cloud Modernization: Migrated a SaaS product (Java Spring Boot, React) from Terraform to AWS CDK, making the infrastructure more maintainable and standardized. Team Enablement: Guided a team of 4 developers to take full ownership of the application lifecycle through CDK best practices, code reviews, and pair programming. Architecture Advisory: Supported Platform and Product teams with AWS CDK adoption and infrastructure design, strengthening delivery sustainability and productivity. Application Migration: Improved the maintainability and resiliency of a TypeScript serverless application while extending its functionality during a cross-account migration.
Led a team of 4 Software Engineers in building a new SaaS product for the Timber Construction industry, taking on responsibilities as Architect, Developer, and Scrum Master to ensure steady progress and delivery. Worked closely with stakeholders and product owners to clarify and prioritize requirements, guiding the team toward pragmatic and high-quality solutions. Built an event-driven file processing pipeline (S3 Events + Lambda) that automated file handling and streamlined system processing. Played a key role in the hiring process, actively participating in the selection of technical and leadership roles. Orchestrated comprehensive pair programming sessions and training programs on AWS, equipping the Engineering team with valuable skills and knowledge.
Supported reviews of Cloud Governance and Compliance in AWS, contributing expertise in security, scalability, and regulatory requirements. Designed and delivered an AWS Training Program in collaboration with the AWS Technical Customer Manager, used across the engineering organization. Contributed to the hiring of DevOps/Cloud Engineers and Team Leads, ensuring strong technical and cultural fit. Advocated for Serverless adoption within engineering teams and represented the approach in cross-team technical discussions. Implemented a multi-account setup using AWS CDK and developed a robust CI/CD pipeline for efficient and reliable deployment of application changes. Delivered a Serverless backend (CDK, TypeScript, AWS Lambda) for a UK merchant’s transaction portal.
tecRacer Group
Full-time · Hybrid
Delivered technical and strategic consulting for AWS solutions across industries in Germany and Austria, including projects with regulatory requirements. Supported pre-sales as a Solutions Engineer and contributed to hiring new consultants. Built a Serverless application with a state machine architecture, including PDF generation and email delivery (API Gateway, Lambda, DynamoDB, Elasticsearch, Terraform). Led a migration from Microsoft SQL Server to Amazon Aurora MySQL Serverless for SAP Commerce, resolving Unicode and performance issues while optimizing monitoring with New Relic. Directed the migration of a VMware Workspace ONE infrastructure to AWS Cloud for a German insurance company, including VM conversion to EC2, Jenkins pipelines, and an active-active multi-region setup with Route 53 for 300k+ simultaneous device connections.
PriceSpider
Full-time · On-site
Ensured PriceSpider's brand commerce platform "CommerceConnector" reliability, security, and performance, while implementing Prometheus for effective business KPI monitoring and enhancing log management with Splunk. Provided Architecture & Infrastructure support for Quality and Data Engineering projects, utilizing containers, AWS Lambda, and related monitoring.
Worked in several infrastructure migration projects to AWS - from scalable web applications to legacy and ERP applications - using my expertise in Linux, web applications, monitoring and security in the Cloud context.
Freelance · Remote
Served as a Monitoring Consultant, offering comprehensive monitoring solutions for new technologies and platforms, enhancing existing monitoring systems, and providing valuable support to customer teams in optimizing their platforms.
Indyxa Group
Full-time · On-site
Provided infrastructure, monitoring and log management consulting, improving monitoring capabilities, developing custom monitoring plugins, and implementing critical infrastructure projects, resulting in enhanced reliability, performance, and security for mission-critical environments, impacting millions of customers and facilitating financial transactions worth millions of dollars.
QuickSoft Sistemas de Informações
Full-time · On-site
Provided comprehensive enterprise infrastructure support, including data protection, collaboration with Tupy SA for data security, and development of backup monitoring and automation tools.
Proway IT Training
Temporary · On-site
Managed the Red Hat Linux Administration Course, focused on RHEL5/6 configuration, system and network services management.
Advance Solution
Full-time · On-site
Provided comprehensive IT services support, managing multiple customer infrastructures, including firewalls, virtualization, email, file servers, directory services, VPNs, server hardware, antivirus, and workstations, while conducting software asset management for program standardization and licensing.
Talks & sessions: 1
Functional Domain Modeling with Gleam
16 min · developers, software architects
This presentation demonstrates how Gleam's powerful type system and functional programming paradigm excel at domain modeling within Domain-Driven Design (DDD). It showcases Gleam's ability to create highly accurate domain representations through structs to represent data, union types for modeling choices, and pure functions that directly reflect business workflows. It also explores how Gleam's syntax makes domain logic self-evident and accessible to non-programmers while maintaining the robustness and concurrency benefits of the BEAM for production systems.
Delivered 2x · latest 2025 · Code BEAM Europe 2025, Elixir, Erlang & Gleam Meetup Munich
Code BEAM Europe 2025 · Nov 6, 2025 · Berlin, State of Berlin, Germany · Presenter
Elixir, Erlang & Gleam Meetup Munich · Feb 20, 2025 · Munich, Bavaria, Germany · Presenter · In person
Skills: 124
Technical
Business
Interpersonal
Security
Other
Credentials: 7
Scaled Agile DevOps
Rust: Asynchronous Programming with Tokio
LinkedIn Corporation
LinkedIn Corporation
LinkedIn Corporation
Amazon Web Services Solutions Architect Associate
Amazon Web Services
Red Hat Certified Engineer - RHEL 7
Red Hat
Education: 1
Computer Science
Incomplete bachelor studies, dropped after second semester to focus on self-paced online education.
Involvement: 2
Community
Organizer
Munich, Bavaria, DE
Monthly casual get-together for anyone interested in pragmatic Functional Programming around Munich. It is about connecting with other people who care about functional programming and applying it in practice. There are no formal presentations or fixed agendas, just open conversations about building software with pragmatic FP. Whether you're using FP in production, working on side projects, or exploring the approach, this is a space to meet peers, exchange perspectives, and learn from each other. Everyone is welcome, regardless of experience level or background.
- Gleam
- Elixir
- Erlang
- Scala
Organizer
We are the meetup for everything related to Elixir, Erlang, Gleam and the BEAM in general in Munich.
- Elixir
- Erlang
- Gleam
- Phoenix Framework
- Lustre Framework
Languages: 3
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