Publication
Hold the Framework: Exploring Dependency Injection Patterns
https://www.toptal.com/developers/full-stack/exploring-dependency-injection-patterns
Martin is available for hire
Hire MartinMartin Coll
Verified Expert in Engineering
Java Developer
Buenos Aires, Argentina
Toptal member since July 10, 2014
Bio
Martín is an all-terrain engineer. He has worked on a wide variety of projects, from software to infrastructure development. Martín currently works on platform engineering with the mindset of empowering all developers to deliver the best products with the best supporting infrastructure.
Portfolio
WIDIP
Python, LLVM, Research, Open-source Software (OSS), Graph Theory, Compilers...
Medallia
Java, Spring Boot, Kubernetes, API Gateways, Service Meshes...
RootstockLabs
Java, Ethereum, Spring Boot, Tree Structures, Open-source Software (OSS), APIs...
Experience
- Spring Boot - 6 years
- Python - 6 years
- Code Review - 6 years
- APIs - 6 years
- Java - 6 years
- Open-source Software (OSS) - 5 years
- Kubernetes - 3 years
- Research - 3 years
Preferred Environment
Kubernetes, Java, Agentic AI
The most amazing...
...thing I've done is start a service mesh initiative in the infrastructure team of a large company which had a huge impact on hundreds of developers' daily lives.
Work Experience
Founder
2023 - PRESENT
WIDIP
- Co-authored and presented “HIF: The Hypergraph Interchange Format for Higher-Order Networks” at NetSci2025 as part of an 8-author collaboration integrating 5 open-source graph and network analysis projects through a shared interoperability standard.
- Developed Mytilus, an open-source shell and execution environment for programmable system operations and agent-assisted development workflows.
- Published supporting Python packages, including nx-hif and nx-yaml packages.
- Designed and presented “Inet Dialect”, an MLIR/LLVM extension for parallel computation using interaction nets and graph rewriting systems.
Technologies: Python, LLVM, Research, Open-source Software (OSS), Graph Theory, Compilers, Functional Programming, Code Review, CI/CD Pipelines
Software Engineer
2019 - 2023
Medallia
- Designed and operationalized shared platform capabilities for hybrid on-prem and cloud microservices environments, including API Gateways, Service Mesh, multi-tenancy, centralized configuration, and logging infrastructure.
- Led onboarding and migration of services to standardized CI/CD and Kubernetes infrastructure, improving operational consistency, reliability, and scalability across engineering teams.
- Contributed to production operations and 24/7 on-call rotations for platform services running in 10+ geographically distributed datacenters.
Technologies: Java, Spring Boot, Kubernetes, API Gateways, Service Meshes, Configuration Management, Continuous Integration (CI), Continuous Deployment, Prometheus, Grafana, On-premise, Python, Microservices, APIs, Code Review, Go, CI/CD Pipelines
Software Engineer
2017 - 2019
RootstockLabs
- Developed low-level blockchain infrastructure components, including virtual machine runtime, peer-to-peer networking, and distributed storage systems.
- Contributed 150+ merged open-source PRs related to blockchain protocol infrastructure.
- Participated in the production launch of the Rootstock network.
Technologies: Java, Ethereum, Spring Boot, Tree Structures, Open-source Software (OSS), APIs, Code Review, CI/CD Pipelines
Full-stack .NET Developer
2015 - 2016
Rocket Songs
- Set up a continuous deployment strategy using Azure with GitHub integration.
- Added many new features to the existing website, including a back-end administration panel.
- Contributed to enabling the site to scale with the user base.
- Helped the company identify business and user growth opportunities.
- Created a component for reliably uploading arbitrarily large files from a web browser.
Technologies: Azure, JavaScript, CSS, C#, APIs
Back-end Developer
2014 - 2014
Carbon Dating
- Supported a .NET back-end for an iOS application, fully taking over an existing, live application.
- Migrated the video storage technology from local disk to Azure Blob Storage.
- Migrated a back-end between servers with zero downtime. Refactored an old codebase to add automated tests.
Technologies: Azure, MongoDB, C#, APIs
Technical Writer
2013 - 2014
Southworks
- Worked side-by-side with Microsoft teams such as DPE, developing proof of concept (POC) solutions and demos for the Microsoft Azure SDK.
- Wrote original content for the Microsoft Azure SDK training kits and hands-on labs.
- Focused on creating a great communication experience, mainly using Agile methodologies.
Technologies: Azure
Software Engineer
2012 - 2013
Innovar Group
- Developed highly-engaging Augmented Reality experiences using Vuforia, deployed on both Android and iOS environments.
- Created a custom framework for 2D interfaces when Unity didn't provide specialized 2D frameworks and tooling.
- Focused on crafting and implementing great user experiences.
- Pushed the company to modernize its software stack, including migrating from SVN to Git.
Technologies: Unity3D, Augmented Reality (AR), C#
Experience
HIF: The Hypergraph Interchange Format for Higher-order Networks
https://www.cambridge.org/core/journals/network-science/article/hif-the-hypergraph-interchange-format-for-higherorder-networks/8EE17F2BE27B52122DF7CC74E982C3C2HIF is a standardized format for storing higher-order network data. It is an open-source project that was published by Cambridge University Press and presented at the NetSci2025 conference. It is an 8-author collaboration integrating 5 open-source graph and network analysis projects.
MLIR Inet Dialect
https://discourse.llvm.org/t/open-mlir-meeting-april-10-2025-inet-interaction-nets-dialect/85763The inet dialect is a lightweight, standalone Multi-Level Intermediate Representation (MLIR) dialect designed specifically for implementing the interaction networks paradigm. Introduced into the LLVM/MLIR ecosystem during an Open MLIR Design Meeting, it provides infrastructure for building, optimizing, and executing graph-like structures modeled on Interaction Nets.
Rootstock Node
https://github.com/rsksmart/rskjRSKj is the Java implementation of the Rootstock (RSK) protocol. It is the core software client used by node operators to connect to Rootstock, which is a Bitcoin layer-2 sidechain that brings Ethereum smart contracts to the Bitcoin network.
Entity Framework Core Data Seeding
https://github.com/dotnet/efcore/pull/7824As an intern at Microsoft, I had a few months to work on a full feature, and I designed the Entity Framework Data Seeding feature from scratch during the migration from .NET to .NET Core.
https://learn.microsoft.com/en-us/ef/core/modeling/data-seeding
https://learn.microsoft.com/en-us/ef/core/modeling/data-seeding
Education
2017 - 2020
Bachelor's Degree in Computer Science
University of Buenos Aires - Buenos Aires, Argentina
Skills
Tools
Grafana
Languages
JavaScript, Java, C#, Python, CSS, Go, C++, C, Assembly, Haskell
Frameworks
Spring Boot, Unity3D, .NET
Paradigms
Continuous Integration (CI), Continuous Deployment, Microservices, Functional Programming, Parallel Programming
Platforms
Kubernetes, Azure, Ethereum, Blockchain
Storage
On-premise, MongoDB, Databases
Other
Open-source Software (OSS), APIs, Code Review, CI/CD Pipelines, Infrastructure, Compilers, Graph Theory, API Gateways, Service Meshes, Configuration Management, Observability, Incident Response, Architecture, Algorithms, Circuit Design, Algebra, Operating Systems, Prometheus, Tree Structures, LLVM, Research, Augmented Reality (AR), Agentic AI
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