Full Stack Developer

EC Markets

. Build end-to-end features across React Native / Expo screens on iOS, Android and web, Spring Boot API endpoints and their integrations .

Posted 10/30/2026full-timeBucharest • RomaniaMid-LevelSenior💰 RON 151,800 - RON 228,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building end-to-end features using React Native, TypeScript, and Spring Boot, with a strong focus on integrating third-party APIs and ensuring application security aligned with FCA and GDPR. Proficient in optimizing app performance and conducting thorough testing to deliver high-quality software solutions.

Highest-signal resume keywords

React Native DevelopmentSpring Boot API DevelopmentTypeScript ProficiencySQL and PostgreSQL ExperienceCI/CD and Git Workflow

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

React NativeTypeScriptSpring BootREST APIsSQLPostgreSQLUnit TestingIntegration TestingAI-Assisted Development ToolsMobile App Release

Soft Skills

CollaborationProblem-SolvingCommunication

Tools & Technologies

ExpoMavenGitCI/CD ToolsMonitoring ToolsError-Tracking ToolsTest Automation Tools

Certifications & Qualifications

Degree in Computer ScienceDegree in Software Engineering

Industry Keywords

Financial ServicesTradingBrokerageFintechFCA ComplianceGDPR Compliance

Tech Stack

Tools & technologies

AndroidAWSiOSJavaJavaScriptMavenPostgresReactReact NativeSpringSpring BootSpringBootSQLTypeScript

About the role

Key responsibilities & impact

Build end-to-end features across React Native / Expo screens on iOS, Android and web, Spring Boot API endpoints and their integrations
Take work from refinement through code review and testing to production release
Participate in Scrum refinement, estimation, planning, review and retrospective ceremonies
Integrate third-party platforms for trading, custody, identity verification, payments, notifications and market data
Implement retries, idempotency, webhook verification and clear application error states
Write unit and integration tests and support QA with mobile UI and API automation
Optimize app performance for older and lower-end devices and different screen sizes
Investigate and fix production issues using monitoring and error-tracking tools
Participate in the engineering support rota
Build securely with authentication, secrets handling and data privacy aligned with FCA and GDPR requirements
Review, test and explain AI-assisted code changes in pull requests

Requirements

What you’ll need

At least 4 years of professional software engineering experience across front end and back end
Production experience with React Native and TypeScript; Expo is a plus
Production back-end experience in Java with Spring Boot, REST APIs and Maven
Solid SQL and relational database experience; PostgreSQL preferred
Experience integrating third-party REST APIs and webhooks in production
Git-based workflow with pull-request reviews and CI/CD
Experience releasing mobile apps through the App Store and Google Play
Confident, practical use of AI-assisted development tools, with sound judgement over their output
Professional English for daily work
Degree in Computer Science, Software Engineering or a related field, or equivalent professional experience
4–7 years of hands-on software engineering experience
Financial services, trading, brokerage or fintech experience is nice to have
AWS experience is nice to have
Real-time data, charting and caching experience is nice to have
js. experience is nice to have
Test automation tools such as Maestro, Detox or REST Assured are nice to have

Benefits

Comp & perks

Annual bonus: eligible for the Group bonus scheme, with a target of two months’ base salary, subject to company and individual performance
Employer contributions in line with statutory pension and social-security requirements
Supplementary health insurance
20 working days annual leave plus public holidays
Company-provided hardware
Annual learning and certification budget, including cloud and mobile development
Occasional travel to other Group offices, paid for by the company
Reasonable adjustments available at any stage of the recruitment process