JSON-RPC Chrome Viewer
A DevTools panel that makes JSON-RPC traffic readable.
Software Architect · Finsight Group Inc. · Kyiv, Ukraine
Volodymyr Lomonos. Front-end architecture for large, data-heavy platforms.
My strong suit is|
I own the decisions that are expensive to reverse, and the engineers who build on top of them.
Scroll01 / About
Fifteen years of decisions that had to hold
I am the front-end architect for a document-heavy financial platform. I set technical direction, own the decisions that are expensive to reverse, and remain accountable for whether the system still adapts when the business changes direction.
In practice, that means the work nobody notices until it breaks: grids that stay responsive with tens of thousands of rows, SSR and session infrastructure that must be correct on the server before the browser paints anything, dependency injection and memory behavior under real load, monorepo and build strategy, and the lint rules that keep a large codebase honest.
I have taken platforms through the migrations most teams keep postponing: framework rewrites measured in thousands of files, state layers replaced without freezing delivery, and build pipelines rebuilt from the ground up. The hard part is rarely the code. It is sequencing the change so the team keeps shipping while it happens.
The other half of architecture is people. I write the architecture decision records, run code reviews and technical one-to-ones, hire and onboard, and prepare performance evaluations, because a decision only holds if the team understands it well enough to defend it without me.
I started on the back end in 2011 with PHP, Laravel, and SQL. Fifteen years later, that grounding is still why I am comfortable when a front-end problem turns out to be a server problem.
Where I add leverage
- Setting technical direction and writing the architecture decision records behind it
- Technical one-to-ones, mentoring, and a front-end sync and DevTalks format
- Hiring: screening, interviews, and onboarding
- Performance review preparation and evaluation
- Scaled-agile planning and cross-team enablement
- Structured onboarding program and materials
- Daily code review and on-duty rotation
02 / Open source
Built in the open
03 / Experience
From engineer to architect
Finsight Group Inc.
Dec 2019 - present · RemoteFront-end architecture for a document-heavy financial platform: technical direction, architecture decision records, and the decisions that are expensive to reverse. Rendering performance at scale, SSR and session infrastructure, dependency injection, and monorepo and build strategy, alongside mentoring, hiring, performance evaluation, and code review.
- Software ArchitectMar 2023 - present
- Lead Front-End EngineerOct 2022 - Mar 2023
- Front-End EngineerDec 2019 - Oct 2022
Dukascopy Bank SA
Jul 2014 - Nov 2019 · KyivMarketplace, back office, and a large widget suite, including one of the bank's most important real-time charting widgets for market analysis. Took the front end through two framework migrations: from Google Closure Library and from AngularJS to React.
- Web Developer5 yrs 5 mos
Freelance
Oct 2012 - Jul 2014 · KyivWeb projects across PHP, Laravel, and the emerging JavaScript framework landscape.
- Web DeveloperPart-time
SC "Energorynok"
Apr 2011 - Jul 2014 · KyivWeb services for remote metering, and a document storage application designed and built from scratch, with recoverable documents, full change history, and role-based access.
- Senior Engineer3 yrs 4 mos
04 / Stack
What I build with
Grouped by the problems they solve.
Core
Architecture
State & data
Performance
Tooling
Observability
Additional experience
05 / Recommendations
What the people I have worked with say
Excerpts from LinkedIn recommendations by managers, product owners and engineers.
Vladimir's most challenging task was to create a fast and reliable backend for all real-time statistical informers and charts for the whole website. As PM of the project, I must admit that it was one of the best joint experiences ever in my practice! Vladimir demonstrated best qualities which high qualified developer can have. Competence, knowledge of modern web technologies and best ways of their implementation and combination, creativity and bright ideas even in performing of routine tasks.
Worked with Vladimir closely for around a year. He showed outstanding FE development skills, is extremely attentive to details, self-organizing, excellent team player. Would be happy to work with Vladimir again.
During this time he was my curator. Vladimir is a strong responsible, self-motivated, skilled and hardworking person. He can perfectly work as in team as alone and he always reaches the best result in a short possible time. The most strong Vladimir's side is that he can fast sort out any unknown programming language or technology if it's needed.
What I like about working with Vladimir is that his overall contribution to projects goes beyond his area of specialization. He is always looking to push the boundaries of design to the limit, while staying within the brief provided, and I look forward to and value his inputs at all stages of project development. His understanding of the nuances of programming ensures that whatever is designed is easy to translate by the tech team.
Extremely talented web professional, ambitious, motivated self-starter with JavaScript expertise. He always tries to find new ways to solve any big challenge, not afraid of difficulties. Vladimir makes any project or task he works on a success!
Vladimir proved himself as a qualified expert in web development. Interest in new technologies, improvement of knowledge and skills, application of knowledge in practice and work productivity are the main goals of his interests. A large amount of knowledge, experience in full-stack web development and excellent teamwork make him a competitive and worthy developer.
Vladimir is a goal oriented, resourceful and helpful person. It was a pleasure to work with him for several years on various IT projects in Dukascopy Bank SA.