Since 2006
in software engineering and product leadership
We Help SaaS Founders Fix Engineering and Accelerate with AI
You bootstrapped or raised your first round. You have customers. Now your engineering team is the bottleneck: missed deadlines, unclear processes, your best developer just quit, and you are still the one making every technical decision. Solidmatics exists to solve that.
Who We Are
We are a team of senior technology operators who have spent years working together as consultants, architects, advisors, and engineering managers across startups and scale-ups. We have inherited messes, built the right teams, fixed architectures, and shipped products together.
We decided to team up under Solidmatics to help SaaS founders solve the full range of engineering and product challenges, from strategy and team building to cloud infrastructure and AI, without the overhead of a full-time executive hire.
The AI Reality Check
Most founders are either:
- Ignoring AI while competitors integrate it into delivery
- Throwing AI at everything without a real operating thesis
- Waiting for the right time instead of testing high-value use cases
What actually works:
- Finding where AI creates 10x leverage in YOUR product - not everywhere, just where it matters
- Using AI to ship faster with your current team
- Avoiding the $50K "AI experiment" that goes nowhere
We have been building with LLMs, AI agents, and autonomous workflows since before most teams started experimenting. Not reading about it. Shipping it. Right now, our CEO leads engineering and product at an AI-powered platform where multi-agent systems, pre-training pipelines, and RAG architectures are in production.
When we advise, we are not guessing. We know what works, what is hype, and what is a waste of your runway.
Performance Signals
Track Record
Measured outcomes from real operating work inside engineering and product teams.
200+ engineers
coached and mentored
12+ teams
built from first hire
40-person orgs
restructured and turned around
99.98% uptime
on systems we've architected
LLM products
in production, including pre-training pipelines and AI agents
What We Actually Do
We step in where founder dependence, delivery friction, architecture constraints, infrastructure issues, and AI uncertainty start slowing the company down.
Problem
You are still the bottleneck
How We Help
Set up processes so your team can ship without you approving everything
Problem
Team is not delivering
How We Help
Diagnose why, fix it. People, process, or both
Problem
Hired wrong, need to fix it
How We Help
Assess your team, help you make hard calls, hire right next time
Problem
No engineering leadership
How We Help
Fractional CTO/CTPO until you are ready (or can afford) full-time
Problem
Product and engineering misaligned
How We Help
Build workflows that actually connect roadmap to delivery
Problem
AI: where do we even start?
How We Help
Find high-ROI opportunities, skip the hype, ship something real
Problem
Development is too slow
How We Help
Implement AI-assisted workflows that speed up your current team
Problem
Architecture cannot scale
How We Help
Review, redesign, and implement the infrastructure to handle growth
Problem
Cloud costs are out of control
How We Help
Audit your AWS spend, right-size resources, implement cost governance
Problem
Security posture is unknown
How We Help
Audit infrastructure, access controls, backups, and fix the gaps
Our Team
When you engage Solidmatics, you get a team of senior operators. Not a solo consultant who stretches across too many domains. Each partner brings deep specialization, and we assemble the right combination based on what your company actually needs.
Vygandas Pliasas
CEO
Bio
Vygandas founded Solidmatics to solve a problem he saw repeatedly: startups and mid-stage companies making expensive technology decisions without experienced leadership at the table. His approach is hands-on. He does not advise from the sideline. He gets into the codebase, the budget spreadsheet, and the hiring pipeline. Before Solidmatics, he held engineering management and technical product roles at Huma (London), Toptal, Velocity Black, and served as Fractional CTO for Smart Annie Inc. He has direct experience building software within regulated industries, securing EU grants, and managing cross-border team operations spanning the US, UK, and EU.
Role
Fractional CTO & CPO
Experience
20+ years in software engineering, product development, and management
Specialization
Technology strategy, team structuring, process optimization, budgets and financial planning, product roadmaps, SDLC governance, AI/LLM product development
Leadership Scale
Led cross-functional squads across backend, frontend, iOS, Android, QA, and automation
Education
MSc Computer Software Engineering (Kaunas University of Technology). Strategic Thinking for the CXO (Cambridge Judge Business School).
Key Outcomes
- Delivered high-availability systems supporting millions of daily users.
- Reduced SaaS operating costs by 50%.
- Built in-house teams from scratch.
- Managed EUR 30M+ healthcare engineering initiatives within Class IIb regulated environments.
- Improved platform uptime to 99.99%.
- Secured EUR 800K+ in EU R&D grants.
Industries
SaaSB2BHealthcare (ISO, EU MDR, FDA)E-commerceFintech
Yohan Fougeray
Partner, Solutions Architect
Bio
Yohan is a senior solutions architect with extensive experience designing enterprise-scale cloud architectures on AWS. He specializes in microservices decomposition, security-first infrastructure design, and event-driven systems. Over 7+ years at a single organization, he led the technical architecture across 15+ major projects, spanning e-commerce platforms, CRM integrations, payment processing systems, and data warehousing pipelines handling hundreds of millions of records. He brings the kind of deep, sustained architectural experience that comes from owning systems end-to-end over years, not months.
Role
Architecture & Engineering
Experience
10+ years in software architecture and development, with 7+ years focused on enterprise AWS architecture
Specialization
Microservices architecture, AWS infrastructure design (40+ accounts), Terraform IaC, event-driven systems (EventBridge, SQS, Step Functions), data architecture (Snowflake, RDS, DynamoDB, OpenSearch), e-commerce platform design, payment processing architecture
Leadership Scale
Led architectural decisions across 15+ projects. Mentored development teams on architectural best practices. Established governance frameworks and standardized development patterns.
Education
IUT Nord Franche-Comte
Certifications
- AWS Solutions Architect (2021)
- AWS SysOps Administrator (2021)
- AWS Developer (2021)
Key Outcomes
- Designed cloud infrastructure spanning 40+ AWS accounts using Terraform.
- Architected migration from EC2 to ECS Fargate for improved resource utilization.
- Built comprehensive security architecture meeting PCI DSS and CyberSafe requirements.
- Designed enterprise-wide data replication across RDS, DynamoDB, and Salesforce into Snowflake.
- Created cross-system data flows handling hundreds of millions of records.
- Implemented zero-trust architecture with least privilege across AWS IAM.
Industries
E-commerceSaaSEnterprise IntegrationData Warehousing
Jean-Baptiste Graindorge
Partner, Cloud Infrastructure & Security
Bio
Jean-Baptiste is a Dev(Sec)Ops specialist with deep expertise in AWS cloud security, infrastructure automation, and cost optimization. What sets him apart: he spent time at AWS itself as a Technical Account Manager, advising enterprise customers on architecture and best practices before returning to hands-on infrastructure work. He has held CISO roles where he owned security posture end-to-end, from IAM governance and compliance frameworks to disaster recovery planning. His career spans enterprise Linux administration, big data infrastructure (Hadoop clusters across 700+ VMs at BNP Paribas), and modern cloud-native DevSecOps.
Role
Cloud Infrastructure & Security
Experience
20+ years in IT infrastructure and systems engineering, with 8+ years focused on AWS cloud and DevSecOps
Specialization
AWS cloud security architecture, Terraform and IaC, CI/CD pipeline design, cost optimization and FinOps, IAM governance, disaster recovery planning, production workload migrations, compliance readiness
Leadership Scale
Held CISO positions overseeing organizational security posture. Managed production infrastructure migrations and cost optimization programs.
Education
ESIC (BTS Info Gestion). Full Stack Web Development (Free Code Camp). Python Specialization (University of Michigan MOOC).
Certifications
- AWS Certified Security, Specialty
Key Outcomes
- Replaced 250+ IAM keys with IAM roles across production environments.
- Led EC2 to Fargate migrations with full IaC coverage.
- Designed and implemented AWS Organizations setup across multiple environments.
- Managed Hadoop infrastructure spanning 700+ VMs across international deployments.
- Executed production workload migrations to AWS with zero downtime.
- Delivered cost optimization programs including CloudFront contract negotiations and Savings Plans management.
Industries
SaaSEnterprise ITFinancial ServicesBig DataTelecommunications
Who This Is For
Good Fit
- Bootstrapped SaaS doing $100K+ ARR
- Pre-seed/Seed funded (up to $5M)
- 2-15 engineers (or about to hire your first)
- Founder still too involved in day-to-day engineering decisions
- Know AI matters, not sure where to start
- Running on AWS and need infrastructure maturity
Not a Fit
- Need someone to build your MVP from scratch (we lead the build, we do not replace your engineering team)
- Want a full-time employee at contractor prices
- Looking for the cheapest option
- Want AI buzzwords, not AI results
What People Say
Vygandas was a great technical partner and support helping as I built out the MVP for my SAAS business. He was patient and offered tons of value as we architectured the initial tech stack!Read more →
Vygandas is great to work with and brings a depth and breadth of experience. He's thoughtful and detail-oriented and is able to switch quickly from big-picture planning to granular project management.Read more →
I had the pleasure of working with Jean Baptiste, and I can confidently say that he is an exceptional DevOps professional with extensive expertise in AWS. He is highly knowledgeable about AWS services and has a deep understanding of how to architect, deploy, and manage applications on the AWS platform. His problem-solving abilities are second to none, and he consistently delivers effective solutions to complex challenges using AWS tools and technologies. Jean Baptiste's ability to integrate his solutions with AWS is incredibly efficient, and he always provides detailed plans for executing projects quickly. I highly recommend his services to anyone seeking a top-notch DevOps specialist with AWS expertise.Read more →
Great professional and team leader. Very calm and friendly professional. Feels like everything will be ok, all the time. This helps maintain the team morale in the right place. When calling him to a Design Brainstorming or Process, he is the one that provides the boldest ideas. I really hope we get to work together again in the future.Read more →
Vygandas is a great leader & manager with deep knowledge & experience in many different areas -- marketing, programming, management, sales, etc. I have worked closely with him for 6 months on a day-to-day basis and have only the best things to say. He made sure that our team runs proficiently and performs consistent results. Vygandas is an ambitious, hard-working and results-oriented leader. The thing I loved the most about working with him is that he has an easy-going attitude and doesn't resist going the extra mile when sharing his professional knowledge with co-workers.Read more →
I was lucky to be the Team Lead that hired Vygandas into Toptal. From the interviews he was impressive in the nicest way: calm, friendly, very intelligent, and communicates very well. Once at the company, he continuously did great work. Yes, he is an excellent engineer. At the same time he can work with people superbly, is a great listener, can organize thoughts and priorities, and is patient. To top it off, Vygandas is always positive and uplifting. After I departed Toptal, he took over my position as Team Lead and it worked out very well for everyone involved. Vygandas can work at any level of an organization and excel.Read more →
Vygandas was a great technical partner and support helping as I built out the MVP for my SAAS business. He was patient and offered tons of value as we architectured the initial tech stack!Read more →
Vygandas is great to work with and brings a depth and breadth of experience. He's thoughtful and detail-oriented and is able to switch quickly from big-picture planning to granular project management.Read more →
I had the pleasure of working with Jean Baptiste, and I can confidently say that he is an exceptional DevOps professional with extensive expertise in AWS. He is highly knowledgeable about AWS services and has a deep understanding of how to architect, deploy, and manage applications on the AWS platform. His problem-solving abilities are second to none, and he consistently delivers effective solutions to complex challenges using AWS tools and technologies. Jean Baptiste's ability to integrate his solutions with AWS is incredibly efficient, and he always provides detailed plans for executing projects quickly. I highly recommend his services to anyone seeking a top-notch DevOps specialist with AWS expertise.Read more →
Great professional and team leader. Very calm and friendly professional. Feels like everything will be ok, all the time. This helps maintain the team morale in the right place. When calling him to a Design Brainstorming or Process, he is the one that provides the boldest ideas. I really hope we get to work together again in the future.Read more →
Vygandas is a great leader & manager with deep knowledge & experience in many different areas -- marketing, programming, management, sales, etc. I have worked closely with him for 6 months on a day-to-day basis and have only the best things to say. He made sure that our team runs proficiently and performs consistent results. Vygandas is an ambitious, hard-working and results-oriented leader. The thing I loved the most about working with him is that he has an easy-going attitude and doesn't resist going the extra mile when sharing his professional knowledge with co-workers.Read more →
I was lucky to be the Team Lead that hired Vygandas into Toptal. From the interviews he was impressive in the nicest way: calm, friendly, very intelligent, and communicates very well. Once at the company, he continuously did great work. Yes, he is an excellent engineer. At the same time he can work with people superbly, is a great listener, can organize thoughts and priorities, and is patient. To top it off, Vygandas is always positive and uplifting. After I departed Toptal, he took over my position as Team Lead and it worked out very well for everyone involved. Vygandas can work at any level of an organization and excel.Read more →
Vygandas and I worked together on growth initiatives, primarily on roadmapping and prioritization. Vygandas does a great job in managing his engineering team and collaborating across the engineering organization to make sure that his team works on high impact projects. While I only worked with Vygandas for a few months, I enjoyed his leadership style and hands-on approach to scoping.Read more →
I worked closely with Vygandas on a day-to-day basis as the product manager of the team he managed. We frequently discussed ways to optimize the team and to prioritize features. It was truly a pleasure working alongside Vygandas as he will go above and beyond to support his team. He excels when it comes to capacity planning and providing high-level estimates on LOE for the initiatives on the roadmap. His management style is pretty straightforward - ensure that everyone is equipped to succeed. This includes removing blockers, researching the unknowns, and getting the right people in the room. This mentality is the reason for the success of the team, why his direct reports thrived and how the Product team was able to manage stakeholders and expectations. I would highly recommend Vygandas for a management position at any company that requires building strong teams and effective, strategic planning.Read more →
Vygandas was employee #1 of our Lithuania branch, and his hard work was crucial in getting the new office and team up and running.Read more →
Vygandas is a very creative person who knows how to materialize complex ideas into reality easily. It's because he has strong IT background and management skills which let him to see end picture in the beginning of new project. Vygandas comes up with creative solutions to difficult problems and know how to manage all process to seek best result on time.Read more →
Je recommande vivement Jean-Baptiste en tant que DevOps. J'ai eu le plaisir de travailler avec lui pendant plusieurs années, et j'ai été impressionnée par son expertise en matière d'automatisation, de développement et de déploiement d'applications. Jean-Baptiste est un collaborateur exceptionnel qui a la capacité de travailler en étroite collaboration avec les équipes de développement et d'exploitation pour assurer une transition fluide vers la production. Sa connaissance approfondie de l'écosystème DevOps et de ses outils a été inestimable pour la réussite de nos projets. Je recommande vivement Jean-Baptiste à toute entreprise cherchant à mettre en place des pratiques DevOps efficaces et efficientes. Son expertise technique et sa capacité à travailler en collaboration font de lui un atout précieux pour toute équipe de développement.Read more →
Vygandas and I worked together on growth initiatives, primarily on roadmapping and prioritization. Vygandas does a great job in managing his engineering team and collaborating across the engineering organization to make sure that his team works on high impact projects. While I only worked with Vygandas for a few months, I enjoyed his leadership style and hands-on approach to scoping.Read more →
I worked closely with Vygandas on a day-to-day basis as the product manager of the team he managed. We frequently discussed ways to optimize the team and to prioritize features. It was truly a pleasure working alongside Vygandas as he will go above and beyond to support his team. He excels when it comes to capacity planning and providing high-level estimates on LOE for the initiatives on the roadmap. His management style is pretty straightforward - ensure that everyone is equipped to succeed. This includes removing blockers, researching the unknowns, and getting the right people in the room. This mentality is the reason for the success of the team, why his direct reports thrived and how the Product team was able to manage stakeholders and expectations. I would highly recommend Vygandas for a management position at any company that requires building strong teams and effective, strategic planning.Read more →
Vygandas was employee #1 of our Lithuania branch, and his hard work was crucial in getting the new office and team up and running.Read more →
Vygandas is a very creative person who knows how to materialize complex ideas into reality easily. It's because he has strong IT background and management skills which let him to see end picture in the beginning of new project. Vygandas comes up with creative solutions to difficult problems and know how to manage all process to seek best result on time.Read more →
Je recommande vivement Jean-Baptiste en tant que DevOps. J'ai eu le plaisir de travailler avec lui pendant plusieurs années, et j'ai été impressionnée par son expertise en matière d'automatisation, de développement et de déploiement d'applications. Jean-Baptiste est un collaborateur exceptionnel qui a la capacité de travailler en étroite collaboration avec les équipes de développement et d'exploitation pour assurer une transition fluide vers la production. Sa connaissance approfondie de l'écosystème DevOps et de ses outils a été inestimable pour la réussite de nos projets. Je recommande vivement Jean-Baptiste à toute entreprise cherchant à mettre en place des pratiques DevOps efficaces et efficientes. Son expertise technique et sa capacité à travailler en collaboration font de lui un atout précieux pour toute équipe de développement.Read more →
Ready to Talk?
If you're spending too much time on engineering decisions and not enough on growing the business, let's talk.
30 minutes. No pitch. Just an honest take on whether we can help.