Senior FullStack developer (long term, contract)

TalentLyft; Madrid; A distancia; EUR 90.000 - 120.000; Jornada completa

Descripción de la vacante

TalentLyft is seeking a Senior FullStack Developer ready to step into a Team Lead role for a complex AI‑powered platform handling users, roles, and permissions. You will work remotely across Europe on a 6–12+ month engagement, collaborating with a PM, designer, and engineers to build a compliant, security‑driven system.

You will design scalable solutions, review security‑sensitive code, and mentor peers while shaping DevOps practices in a demanding, data‑rich environment.

Formación

• Senior FullStack Developer with leadership potential and a secure-by-design mindset.
• Experience building complex, permissioned systems in finance/identity domains.
• Proficient in integrating multiple external services and APIs.

Responsabilidades

• Own architectural decisions for a large, evolving codebase in a finance‑sensitive domain.
• Extend the generic-entity/schema system without regressions.
• Lead integration work with external providers (Salesforce, Xero, SmartSearch, SendGrid).
• Review code with a security‑first eye on permission/access-control gaps.
• Maintain documentation practices and the project Memory Bank.
• Participate in on‑call/production support and DevOps ownership.
• As the role matures, mentor engineers and set technical guardrails for non‑engineering contributors.

Conocimientos

Next.js

TypeScript

tRPC

PostgreSQL

pgvector

Drizzle ORM

Zod

NextAuth.js

Keycloak

Docker

Azure Container Apps

Terragrunt

GitHub Actions

Security/Access Control

API Integrations

DevOps

Herramientas

Salesforce

Xero

SmartSearch

SendGrid

Descripción del empleo

We are looking for a skilled Senior FullStack Developer who is ready to take on a Team Lead position soon and join an exciting and complex project.

Description

An AI-powered platform for managing users, roles, and permissions. It handles identity verification (KYC/KYB), a rewards/points system, and connects with CRM, accounting, and card-issuing tools. It's genuinely complex - not just a simple database app.

English Proficiency

Upper-Intermediate / B2+ (client-facing communication required)

Team

Project Manager, Product Designer, 2 FullStack developers, Support Engineer.

Expected Working Hours

Full-time, 40 hours/week.

Location

Remote, Europe only. Preference for Western Europe (occasional on-site visits may be required); candidates from Eastern Europe will also be considered.

Engagement Duration

6–12+ months (long-term).

Technology Stack

• Next.js 15 (App Router) + TypeScript, tRPC
• PostgreSQL + pgvector via Drizzle ORM, Zod
• NextAuth.js + Keycloak (OIDC/OAuth2)
• Tailwind + shadcn/ui
• Docker, Azure Container Apps, Terragrunt + GitHub Actions

Skills

• Schema/metadata-driven system design (this project uses per-role schema overlays across 11 distinct roles, not off-the-shelf RBAC).
• JSONB-based PostgreSQL modeling.
• Strong code review instincts around authorization/access control.
• Integrating multiple third-party APIs with graceful handling of partial failures.
• DevOps-adjacent comfort (Docker, IaC, CI/CD, Azure).

Responsibilities

• Own architectural decisions for a large, actively evolving codebase in a compliance- and finance-sensitive domain (KYC/KYB, points/rewards economy, card issuance).
• Extend the generic-entity/schema system without regressions.
• Lead integration work with external providers (SmartSearch, Salesforce, Xero, Pannovate, SendGrid).
• Review code with a security-first eye, particularly on permission/access-control gaps.
• Maintain the project's Memory Bank and feature-level documentation practices.
• Participate in on-call/production support.
• Responsible for managing the DevOps part of the project
• As the role matures, mentor other engineers and set technical guardrails for non-engineering contributors working directly in the codebase via AI tools.