Hire me

Max Livirov designs and builds .NET backends that keep working when nobody is looking.1

Freelance. Remote. Fifteen years in FinTech, insurance, security and GovTech.

1 Including weekends, holidays and the night before a release.

Portfolio 5 projects

GRCFedRAMP · NIST

Re-architecting a federal GRC SaaS platform

Kanda Software, 2025–2026

↻monthly · annually

Recurring payments service for a delivery platform

Snoonu, 2025

10×response time

Speeding up a Privileged Access Management product

Indeed Company, 2024–2025

TBhundreds of them

Corporate data warehouse at hundreds of terabytes

Petrovich-Tech, 2022–2023

T−0Antares · RTOS

Launch-monitoring software for the Antares rocket

Design Office “Yuzhnoye”, 2009–2013

GRC

Project 1 of 5 · Kanda Software, 2025–2026

Re-architecting a federal GRC SaaS platform

Task
A Governance, Risk & Compliance platform that helps US government agencies get Authority to Operate (FedRAMP, FISMA, NIST) had outgrown its legacy backend.
Solution
Led the rebuild on Clean Architecture with CQRS, DDD, multi-tenant DB isolation and event-driven patterns. Added SAML SSO, MFA, CEF audit logging and a full document pipeline.
Result
New foundation and team guardrails, plus 3 RAG-powered AI copilots for document analysis, control generation and audit assistance.
Stack
C#, .NET, PostgreSQL, Azure Service Bus, Redis, RAG, FastAPI

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↻

Project 2 of 5 · Snoonu, 2025

Recurring payments service for a delivery platform

Task
Snoonu's platform needed subscriptions and instalment payments managed end to end, with reliable messaging to downstream systems.
Solution
Built a .NET 8 billing-agreement microservice with a full lifecycle (Pending → Scheduled → Active → Completed/Cancelled), MediatR use cases, Hangfire scheduling and MassTransit/RabbitMQ consumers.
Result
A transactional outbox guarantees reliable, eventually-consistent events to downstream payment systems.
Stack
.NET 8, gRPC, PostgreSQL, MediatR, Hangfire, MassTransit, RabbitMQ, Redis

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10×

Project 3 of 5 · Indeed Company, 2024–2025

Speeding up a Privileged Access Management product

Task
An IT-security (PAM) product needed new authentication options and faster responses to win and keep enterprise customers.
Solution
Implemented multiple external authentication providers, optimised hot code paths and set up compliant GitLab build pipelines.
Result
Server response time up to 10× faster; new auth options widened the sales funnel and helped expand the client contract.
Stack
C#, .NET, Angular, PostgreSQL

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TB

Project 4 of 5 · Petrovich-Tech, 2022–2023

Corporate data warehouse at hundreds of terabytes

Task
Developers and sales teams at a large retailer could not easily get to the data they needed to spot trends.
Solution
Designed the warehouse from scratch on Kafka, Spark, ClickHouse and Airflow, plus a high-load Data Fabric API and Angular management console.
Result
Self-service data access for engineering and sales, and faster replies to customer requests.
Stack
Kafka, Debezium, Spark, ClickHouse, Airflow, Kubernetes, Angular

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T−0

Project 5 of 5 · Design Office “Yuzhnoye”, 2009–2013

Launch-monitoring software for the Antares rocket

Task
Space-tech monitoring software for launches (contracted with Orbital ATK) was slow to develop on a real-time OS.
Solution
Played a lead role on the software and ported the Qt library to the company's real-time operating system.
Result
Development cycle cut from several months to just weeks.
Stack
C++, Qt, Boost, RTOS

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What I can do for you

§ 1

.NET backend & API development

High-load ASP.NET Core services and APIs: clean, tested, observable, and ready for production traffic from day one.

C#, .NET, ASP.NET Core, EF Core, gRPC, PostgreSQL, MSSQL

§ 2

Architecture & re-architecture

Clean Architecture, CQRS and DDD for new products, or a safe path off a legacy backend. Available as a hands-on tech lead or fractional architect.

Clean Architecture, CQRS, DDD, Microservices

§ 3

Data platforms & event streaming

Event-driven systems and data warehouses that scale to hundreds of terabytes, from ingestion to analytics APIs.

Kafka, Spark, ClickHouse, Airflow, Databricks

§ 4

AI integration

RAG-powered copilots, document classification and AI-assisted workflows built into your existing product, not bolted on.

RAG, LangChain, Python FastAPI, AI copilots

§ 5

Security & compliance-ready systems

SSO (SAML), MFA, JWT, multi-tenant isolation and audit logging for products that must pass security reviews, including FedRAMP/NIST contexts.

SAML SSO, MFA, Multi-tenancy, Audit logging

§ 6

Cloud migration & DevOps

Moving on-prem services to Azure or AWS, with CI/CD, static analysis, monitoring and infrastructure as code.

Azure, AWS, Kubernetes, Terraform, CI/CD

Tech stack

Languages
C#, Python (scripting & prototyping), TypeScript, JavaScript, Scala, SQL, HTML & CSS
.NET ecosystem
.NET, ASP.NET Core, Entity Framework Core, Dapper, MediatR, FluentValidation, AutoMapper, MassTransit, Hangfire, RestEase, gRPC, MagicOnion, WCF, WPF, Umbraco CMS, Testcontainers, Roslyn analyzers
Architecture & practices
Clean Architecture, CQRS, Domain-Driven Design, Microservices, Modular monolith, Event-driven architecture, Transactional Outbox, Backend for Frontend, API Gateway, Multi-tenancy, REST API, SOLID, High-load systems, Distributed locking
Databases & storage
PostgreSQL, Microsoft SQL Server, MySQL, MongoDB, Redis, Elasticsearch, ClickHouse, HDFS, Amazon S3, Liquibase
Messaging & streaming
Apache Kafka, Kafka Connect, Debezium, RabbitMQ, Azure Service Bus, AMQP, AWS SQS, AWS SNS
Data engineering
Apache Spark, Databricks, Apache Airflow, OpenMetadata, Data warehouse
AI & LLM
RAG, LLM integration, AI copilots, LangChain, OpenAI, YandexGPT, AI document classification
Cloud
Microsoft Azure, Amazon Web Services, Cloud migration
DevOps & observability
Kubernetes, Docker, Helm, Terraform, CI/CD, Azure DevOps, GitLab CI, TeamCity, Octopus Deploy, Git, SonarQube, Grafana, Prometheus, ELK stack
Security & compliance
SSO, MFA, JWT, Authentication & authorization, Privileged Access Management, Audit logging, PCI DSS, FedRAMP, FISMA, NIST, GRC, FSTEC, Secure data erasure
Frontend & mobile
Angular, NgRx, PrimeNG, RxJS, Bootstrap, iOS & Android apps, Figma, Lovable
Domains
FinTech, Payments, Capital markets, Insurance, Cybersecurity, GovTech, Healthcare, Marketing analytics, E-commerce, CRM, Aerospace
Earlier career: C++
C++, Boost, Qt, RTOS, Multithreading, Networking protocols

Experience

Aug 2025–PresentKanda Software
Senior Software Engineer, contract
May 2025–Jul 2025Snoonu
Senior .NET Developer — Recurring Payments, contract
Jan 2024–Apr 2025Indeed Company
Full Stack Engineer, full-time
Oct 2022–Dec 2023Petrovich-Tech
Solution Architect, full-time
Oct 2021–Sep 2022CIGen
Team Lead / Solution Architect, part-time
Dec 2021–Jan 2022LSEG (London Stock Exchange Group)
Senior Software Engineer, contract
Feb 2021–Sep 2021Prime TSR
Senior Software Engineer, full-time
Dec 2020–Jan 2021Plurilock
Senior Software Engineer, contract
Jan 2020–Sep 2022V12, A Porch Company
Solution Architect / Tech Lead, part-time
Dec 2019–Nov 2020Green Shield Canada (via EPAM)
Senior Software Engineer, contract
Jun 2018–Apr 2019Ascension Data and Analytics
Senior Software Engineer, contract
Sep 2014–May 2018One, Inc.
Software Developer, full-time
Jun 2013–Jul 2014Apriorit
Junior Software Developer, full-time
Oct 2009–Jun 2013Design Office "Yuzhnoye"
Software Developer, full-time

Questions

What kind of projects do you take on?
.NET backends and APIs, architecture and re-architecture of legacy systems, data platforms and event streaming, AI/RAG integration, and security-sensitive multi-tenant SaaS. Both greenfield builds and rescuing existing systems.
Can you join as a tech lead or architect rather than just a developer?
Yes. I have worked as a solution architect and tech lead on several products, including leading a 9-person team. I can set the architecture, coding standards and CI/CD, and stay hands-on in the code.
What engagement models do you offer?
Contract or part-time, either a fixed price for a well-defined scope or a day rate for ongoing work. You get a written proposal before anything starts.
Do you work remotely?
Yes, fully remote. I have worked with distributed teams and clients in the US, Canada and the UK.
How soon can you start?
Usually within one to two weeks, depending on current commitments. Get in touch and I will give you a concrete date.
Will you sign an NDA?
Of course. Happy to sign your NDA before the first technical discussion.

Email me: max.livirov@gmail.com

Replies within one business day. Signs your NDA before the first call.