Danil R.

Senior Software Engineer

The Randstad, Netherlands4 yrs 7 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

Expert in building scalable FinTech and SaaS products.
Proven track record in optimizing performance and reliability.
Strong leadership in mentoring and team collaboration.

Stackforce AI infers this person is a Full Stack Developer specializing in FinTech and SaaS with a focus on performance and reliability.

Contact

Skills

Core Skills

TypescriptNode.jsReactDocker.netSqlPl/sql

Other Skills

Systems DesignWeb PerformanceCI/CDReact.jsVitePlaywrightProfilingRedux.jsMentoringOracleJavaScriptPersonal DevelopmentWebSocket.NET APIsDesign Systems

About

Senior Software Engineer (Full Stack) with 8+ years building enterprise FinTech and SaaS products across TypeScript/React and Node.js/.NET. I architect scalable systems where frontend performance directly impacts product outcomes. To me, the browser is a sophisticated runtime environment, not just a UI layer. My work sits at the intersection of Frontend Architecture and System Design: Deep Engineering: Building proprietary core libraries to improve runtime performance and keep business logic maintainable. Infrastructure: Designing distributed testing environments with Docker and Playwright to increase reliability. I thrive in teams with high engineering standards, where architectural decisions shape product stability and long-term business success.

Experience

4 yrs 7 mos

Total Experience

1 yr 6 mos

Average Tenure

2 yrs 11 mos

Current Experience

Fiit | developertools

2 roles

Senior Software Engineer

Promoted

Apr 2025 – Present · 1 yr 1 mo · Hybrid

Product: ActiveReportsJS — A cross-platform JavaScript reporting engine for React, Angular, and Vue.
Built and rolled out a shared TypeScript/Node.js utilities library to replace Lodash-heavy paths; reduced shared utility size from 5.0MB to 2.1MB and improved internal benchmark execution time by ~30s across multiple teams.
Established cross-platform CI quality gates (Strict TypeScript + ESLint/Prettier) for Node.js services and React apps, reducing production incidents by 20% (tracked in Jira).
Improved platform reliability by adding actionable CI diagnostics and failure triage workflows, reducing recurring production issues and improving release confidence across teams.
Built structured onboarding workflows and technical documentation, reducing ramp-up time for new hires and improving delivery consistency across the team.

Systems DesignWeb PerformanceTypeScriptNode.js

Software Engineer

Jun 2023 – Apr 2025 · 1 yr 10 mos · Hybrid

Product: ActiveReportsJS — A cross-platform JavaScript reporting engine for React, Angular, and Vue.
Led the migration from Webpack to Vite for a multi-package ecosystem, cutting build time by ~55% (from ~3 min to ~1.3 min).
Built Docker-based Playwright E2E infrastructure with ephemeral environments to keep tests deterministic and reduce manual regression effort by 30% (validated via Jira metrics).
Enhanced system observability by integrating structured logging and failure diagnostics into CI pipelines, reducing pipeline failures caused by flaky tests.

React.jsDockerReact

Grapecity, inc.

Software Engineer

Jun 2022 – May 2023 · 11 mos · Remote

Product: ActiveReportsJS — A cross-platform JavaScript reporting engine for React, Angular, and Vue.
Boosted system performance by ~15% through full-stack profiling: optimizing backend payloads and eliminating unnecessary React rerenders on the client.
Optimized the .NET Core and React integration by refining API contracts and model serialization to reduce payload overhead and accelerate large report workflows.
Owned end-to-end delivery of critical product features, resolving high-impact cross-browser compatibility issues (Safari/WebKit) for enterprise customers.

React.jsTypeScriptReact.NET

Eccentex

Full Stack Developer

Oct 2020 – May 2022 · 1 yr 7 mos · Remote

Domain: FinTech — Internal Debt Management System for Banking.
Owned end-to-end delivery of enterprise B2B applications (React + .NET/C#), defining core architecture patterns and shipping critical features under tight timelines.
Engineered high-performance Oracle data layers (PL/SQL, stored procedures, indexing) to ensure reliability for data-intensive business workflows.
Automated manual processes by designing workflow engines and back-office integrations, improving system stability and operational efficiency.
Mentored junior developers and authored internal technical documentation to streamline onboarding.

Redux.jsMentoringReact.NET

Renaissance

Full Stack Developer

Apr 2018 – Sep 2020 · 2 yrs 5 mos · Remote

Domain: Insurance — Auto Insurance Claims Processing Platform.
Delivered enterprise workflow modules and reporting features using JavaScript and SQL/PLSQL in production environments.
Optimized complex SQL/PL/SQL reporting queries to improve performance and ensure data accuracy across key business flows.

SQLPL/SQL

Complex solutions

Developer

Jul 2017 – Apr 2018 · 9 mos · Hybrid

Domain: CRM — Development and modernization of legacy CRM systems.
Maintained and extended legacy CRM systems and implemented new features using JavaScript and Oracle-based data workflows.

SQLPL/SQL