Full Stack Developer End-to-End Feature Delivery

Full Stack Developer - End-to-End Feature Delivery

Location:Warsaw

Contract Type:2 Months
JobType:Hybrid

• Build complete business features across backend APIs React frontend and cloud services

• Work with modern tech stack Core TypeScript Azure and both SQL and NoSQL databases

• Solve complex technical challenges across multiple application layers

• Contribute to code quality through reviews testing and security-focused development

Company Overview

Our client is an established technologyorganisationdelivering business-critical platforms within the financial services sector. They focus on building robust scalable solutions that support compliance tax and financial operations for enterprise clients. The company values technical excellence security-first thinking and cross-functional collaboration. Their engineering teams work onmodernisinglegacy systems while maintaining high standards for code quality and system reliability.

Theyrelooking for an experienced Full Stack Developer to join their team in Warsaw on a contract basis. This role offers the opportunity to work on meaningful features that directlyimpacthow financialorganisationsmanage risk compliance and reporting.

Position Overview

As a Full Stack Developeryoulltake ownership of delivering complete business features from concept through to across the entire technology stack designing and implementing backend APIs building frontend interfaces with React and TypeScript and integrating with cloud services. This role requires someone who can work independently on complex tasks while collaborating with cross-functional teams to deliver high-quality solutions that meet security and performance standards.

Responsibilities

• Design and implement backend APIs and business logic and C#

• Build and integrate frontend functionality using React and TypeScript

• Model data andoptimisequeries across SQL and NoSQL databases

• Deliver complete features spanning backend frontend and integration boundaries

• Troubleshoot and resolve production issues across multiple application layers

• Contribute to code reviews testing strategies and technical quality standards

• Support integration with external systems and cloud-connected services

• Apply security best practices including secure API design and tenant-boundary thinking

Requirements

• and C# fundamentals

• Proven experience building Core Web APIs

• Solid React and TypeScript skills with ability to build andmodifyfrontend screens independently

• Experience with both SQL and NoSQL databases including data modelling and queryoptimisation(or strong experience in one with ability to learn the other quickly)

• Working knowledge of cloud platforms and services

• Strong debugging and problem-solving abilities across full stack

• Security awareness including secure API design and common vulnerability identification

• Ability to work independently on complex end-to-end tasks

• 6-8 years of relevant software development experience

Desirable:

• Experience with MongoDB and Azure SQL

• Familiarity with Azure services such as App Services Storage Key Vault and monitoring tools

• Background in financial tax or compliance-related platforms

• Experience supporting frontendmodernisationin enterprise systems

• Knowledge of design system migrations or enterprise UI transitions

Benefits

While specific benefits details are beingfinalised this contract role offers competitive day rates reflective of the technical complexity and within a technically focused environment where code quality security and system reliability areprioritised collaborating with experienced engineers committed to delivering robust solutions for the financial services sector.

How to Apply

To apply for this role pleasesubmityour CV using the form below or email