Gabriel
Malenowitch
Software Engineer III
I’m a software engineer who loves turning messy, open-ended problems into clean solutions with code. I have a solid background in React and TypeScript, and I'm increasingly getting my hands dirty with backend and distributed systems.
For me, it’s not just about writing code. It’s about love logic, engineering and produce results with less effort possible, getting it safely to production, and actually knowing what's happening there through good observability.
I have no desire to become a manager; my passion is the tech itself. I’d much rather dive deep into a complex codebase, make tough technical decisions, and mentor junior devs through a difficult PR. Put simply: if you have a weird bug to squash, a system to scale, or a vague problem that needs a real technical solution, I’m your guy.
4+
SE III
B2B SaaS & Fintech
How I work
Extreme Ownership
End-to-end accountability for everything I build — from spec to production monitoring. I advocate for the customer internally and raise engineering standards across the team.
Architecture that Scales
Architectural decisions on distributed systems backed by full observability: logging, tracing, profiling, and metrics. Resilient software that holds under pressure.
Measurable Impact
I navigate ambiguous scenarios with data-driven decisions. I balance impact vs. investment to deliver results that move real business metrics.
Featured projects
Dontosys
SaaS for Dental Clinic Management
Full multi-tenant SaaS platform for dental clinic management. Architecture designed to securely and efficiently isolate data across multiple tenants. Robust Keycloak authentication, complex database modeling, and a scalable RESTful API built for growth. From client onboarding to appointment management and medical records, Dontosys covers the full operational cycle of a modern dental clinic.
A high-performance 3D voxel rendering engine built 100% in pure JavaScript, with no external engines. Implements raycasting, procedural terrain generation using Perlin noise, and renders interactive voxel worlds directly on the browser canvas. A project born from curiosity that proves environmental constraints are just starting points for creative solutions.
Click to play
Press ESC to release the mouseOpen-source calendar component for React with Material-UI and TypeScript, inspired by Google Calendar. Supports month, week, and day views with full event management — creation, editing, deletion, conflict detection, and drag-to-select. Published on npm with comprehensive Storybook documentation and Cypress test coverage.
Complete photo editor running 100% in the browser with no server uploads. Crop, remove backgrounds with AI, apply filters, add text overlays with Google Fonts, and compress images — all processed locally. Built with Next.js, Material-UI, and client-side Canvas APIs for a fast, privacy-first editing experience.
Lossless image compressor running entirely in the browser — no uploads, no servers. Drag and drop your images and get optimized files instantly. Supports PNG, JPG, WebP, AVIF, and GIF. Built with Next.js and Material-UI, 100% free with no limits.
Calculate the growth of your investment with compound interest. Visualize portfolio composition with a stacked bar chart and estimate monthly retirement income using the 3% and 4% safe withdrawal rules (Trinity Study).
Timeline
Software Engineer III
Stone
At Stone, I work with full autonomy on complex, open-scoped challenges, making architectural decisions on high-criticality distributed systems. I implement end-to-end observability — structured logging, distributed tracing, profiling, and metrics — ensuring production health and debuggability. Beyond the technical side, I mentor junior engineers and lead refinements, aligning technical efforts with business goals in ambiguous scenarios.
Software Engineer II
Stone
Key role in building and maintaining a large-scale internal admin app used daily by operations and CRM teams across Banking, Payments, Risk, and Identity domains. I actively participated in high-level technical discussions, contributing to architectural decisions and cross-team improvements. The app centralized critical processes and significantly raised operational efficiency across the company.
Software Engineer I
Stone
Part of the frontend team that built and maintained the same large-scale CRM system — a mission-critical internal application for multiple operational teams. I worked across Banking, Payments, Risk, and Identity domains, delivering management features that improved processes and client support services. Full engagement from brainstorming to code, no half-measures.
Frontend Developer Trainee
Stone
First professional role at a fintech focused on risk management, identity verification, and digital banking. I learned to build secure, responsive interfaces working closely with senior developers and absorbing industry best practices in the financial sector. This was the beginning of a journey that shaped my understanding of how technology drives real business impact.
Full-Stack Engineer
Highlander TECH
Full-stack development end-to-end — scalable APIs with NestJS/TypeScript on the backend and dynamic UIs with Next.js on the frontend. Performance optimization through caching strategies and seamless inter-layer integration. Cross-functional team collaboration on projects with a strong focus on quality and scalability.
