Ethswitch S.C. Verified

Senior Software Engineer

FULL TIME High Skilled

Posted Sep 30, 2026

Experience High Skilled

Salary Negotiable

deadline Oct 06, 2026 6 days left

Job Description

The Senior Software Engineer acts as the technical anchor and engineering lead across EthSwitch digital platforms (Central Billing Platform - CBS, Interoperable Merchant Payments - and Merchant Web Portals and so on).

The role oversees end-to-end software architecture: bridging responsive mobile/web frontends with Spring Boot backend microservices and automated DevOps delivery pipelines. Accountabilities include maintaining 24/7/ switch uptime, leading incident triage, mentoring developers, running live stakeholder demos, and enforcing national regulatory security standards.

CORE RESPONSIBILITIES

A. Mobile & Web Application Engineering

Architect and maintain production-grade cross-platform apps using Flutter & Dart for Android, iOS, and smart POS terminals.
Design and develop merchant administration portals and operations dashboards using Angular (v15+), TypeScript, RxJS, and Angular Material, with exposure to modern web frameworks (React, Vue, or Flutter Web).
Optimize client-side rendering performance, frame rates (60/120 fps), memory footprint, offline caching, and state management across diverse form factors.
Implement native platform channels (Kotlin/Swift) and modular Clean Architecture / MVVM patterns.

B. Backend Microservices & Switch Integrations

Design and consume high-throughput RESTful APIs and switch connectors using Java and Spring Boot.
Integrate token-based authentication and authorization architectures (OAuth 2.0, OpenID Connect, Keycloak, JWT with refresh token rotation).
Implement data persistence, local storage, and caching using PostgreSQL, MySQL, Redis, and SQLite.
Handle edge-case network resilience: offline fallbacks, exponential backoff retries, and network connectivity recovery.

C. DevOps, CI/CD & Production Infrastructure

Design and automate end-to-end CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins) for web builds and mobile APK/AAB compilation.
Configure and administer production Linux hosts (RHEL/Ubuntu), systemd application daemons, and Nginx reverse proxies (SSL termination, rate limiting, and HTTP/2 optimizations).
Oversee containerization with Docker and container orchestration for supporting services.
Manage mobile release engineering: production keystores, ProGuard/R8 obfuscation, compile-time secret injection (--dart-define), and split-per-ABI packaging.
Establish production observability with structured logging, health checks, crash reporting, and real-time alerts.

D. 24/7 Production Operations & Switch Reliability

Act as Tier-3 engineering lead for high-severity (Sev-1 / Sev-2) switch payment dropouts, Hosted Payment Page (HPP) timeouts, and gateway anomalies.
Prepare technical Change Requests (CRs), risk assessments, and rollback procedures for the Change Advisory Board (CAB); execute zero-downtime Blue/Green maintenance windows.
Maintain cryptographic lifecycle: domain SSL certificates, CA trust stores, keystores, and SHA-256 TLS certificate pinning rotation schedules.
Participate in scheduled Disaster Recovery (DR) failover drills, multi-node load balancing tests, and automated backup validation.
Resolve settlement exceptions: investigate inter-bank discrepancies, pending transaction anomalies, and communication mismatches between core switch engines and member bank connectors.
Support sandbox onboarding and technical integration for member commercial banks, MFIs, and PSPs.

E. Security, INSA Compliance & Governance

Enforce client-side protections: encrypted storage (flutter_secure_storage), root/jailbreak detection, screen-overlay defenses, anti-tampering, and anti-repackaging checks.
Remediate vulnerabilities identified by internal penetration tests, INSA audits, and automated static/dynamic scanning tools (MobSF, SonarQube, OWASP ZAP).
Enforce strict secret segregation: zero hardcoded credentials, API keys, or private IP addresses in release binaries.

F. Technical Leadership & Stakeholder Management

Lead code reviews, enforce SOLID design principles, and uphold Clean Architecture standards.
Plan, organize, and lead live end-of-sprint demo sessions and product milestone showcases for Product Owners, Department Managers, and Member Bank integration teams.
Mentor junior and mid-level developers through pair programming, structured code reviews, and technical workshops.
Maintain engineering documentation: Architectural Decision Records (ADRs), system workflow diagrams, deployment runbooks, and API specs.

Job Requirements

BSc/MSc in Computer Science, Software Engineering or related fields of studies
6/4 years of relevant work experience out of which 2 years in professional positions

External Vacancy No. EVA/11/2026

How To Apply

Qualified candidates are invited to submit their application with non-returnable CV, educational qualifications and work experience to hr@ethswitch.com, stating the title of the position clearly on the subject line. Qualified female applicants are highly encouraged.

Please be aware that it is mandatory to attach your credentials (educational qualifications and work experience) along with your CV. Submitting only your CV is not sufficient.

Please be advised that all applicants’ Educational Credentials will be verified with the respective higher institutions.

How to Apply

Qualified candidates should email a complete application—including CV, educational qualifications, and work experience—to hr@ethswitch.com, clearly stating the position title in the subject line. Female applicants are especially encouraged to apply. All documents must be attached; submitting only a CV is not sufficient.