Overview & Purpose

SOFTSWISS continues to expand the team and is looking for a Senior Full-Stack Connectivity Engineer.

We need a true, experienced, and accomplished professional who shares our culture and values.

About Product

SOFTSWISS Game Aggregator
A fast and cost-effective solution that allows you to integrate and manage casino gaming content easily.
Learn More

Key Responsibilities

• Deep-dive analysis of third-party client-side web solutions — tracing API flows, auth sequences, and performance hotspots.
• Design, build, and maintain high-throughput Node.js middleware that routes external web traffic through internal services.
• Develop and occasionally extend companion React 18 single-page apps (dashboards, simulators, internal tools).
• Work in a fully agile environment (Scrum) alongside senior engineers, product managers, and security specialists.
• Manage service dependencies, versioning, and CI/CD pipelines (GitLab CI, Docker, Open API, SSE).
• Participate in code reviews, backlog grooming, retrospectives, and continuous product-quality improvement.
• Write and maintain unit, component, and e2e tests; ensure full-cycle feature delivery — estimation, decomposition, implementation, release.

Required Experience

• 3+ years of production experience with JavaScript (ES6+) and TypeScript on Node.js, deep understanding of vanilla JavaScript.
• Solid understanding of modern browser internals: page lifecycle, DOM & JS runtime, resource loading (HTTP/2, QUIC, CORS, CSP, Service Workers, WebSockets).
• Hands-on experience analysing or reverse-engineering web front-ends: reading minified/obfuscated code, reproducing business logic, inspecting network traces.
• Proficiency with proxy / MITM tooling (mitmproxy, Charles, Burp Suite) or programmatic interception libraries (http-proxy, undici hooks).
• Strong grasp of networking fundamentals (TCP/IP, TLS, DNS, SOCKS/HTTP proxying) and traffic encryption concepts.
• Solid understanding of HTML5 / CSS3 and responsive UI patterns.
• Familiarity with webpack, Babel, Docker, GitLab CI, GitLab package registry, semantic versioning, and Open API specs.
• Ability to write clean, testable code and corresponding unit tests.
• Good UX sensibility and attention to performance and accessibility.
• Confident Git workflow, code reviews, and team development habits.
• Strong knowledge in website vulnerability analysis.
• Fluent Russian speaker; English proficiency at B1+ level.

Nice to Have

• Proficiency with Nginx (reverse-proxy, load balancing, caching).
• Experience designing or auditing high-load network services (10k+ RPS).
• Familiarity with WebAssembly, static-analysis tooling (webpack-bundle-analyser, source-map-explorer).
• Experience with cloud providers (AWS, GCP, etc) and their load-balancing stacks.
• Practical skills with React 18 and state management (Redux-Saga).
  

Learn more about our hiring process here – what to expect, how to prepare, and what makes SOFTSWISS different.

About us:

SOFTSWISS is an international company, an iGaming software expert. We don't only follow iGaming market trends, we create them! SOFTSWISS is a recognised industry leader in iGaming software solutions development, covering almost all aspects of the iGaming industry. The company has an international team and an official presence in several countries. Projects powered by SOFTSWISS receive numerous awards and accolades from industry media.

Our Mission:

Changing the iGaming industry through technological innovation.

Our Benefits:

• Full-time remote work opportunities and flexible working hours
• Private insurance
• Additional 1 Day Off per calendar year
• Sports program compensation
• Comprehensive Mental Health Programme
• Free online English lessons with a native speaker
• Generous referral program
• Training, internal workshops, and participation in international professional conferences and corporate events.
  

If you would like to find out more about us, please visit our website https://www.softswiss.com.