Join

Amaris Consulting

and work on

AI‑powered payroll and human resources management platforms

serving thousands of users worldwide. Be part of an international team, grow in an agile environment, and develop your career within a integral group that values innovation, collaboration, and talent.

As a

Senior Full‑Stack Engineer , you will be a key member of the team building our

AI‑powered Payroll Operations platform . You will work on a cutting‑edge intelligent assistant that automates and streamlines payroll workflows, enabling practitioners to manage payroll operations efficiently through a conversational AI experience. You will contribute across the full stack — from

micro frontends and web components , through

REST APIs and relational databases , to

cloud‑hosted AI agents

— and integrate with multiple enterprise payroll systems.

What we’re looking for

7+ years of experience

as a

Full‑Stack or Backend Engineer

working with

Python and/or .NET

in complex enterprise environments.

Strong experience designing and building

Python‑based services , ideally including

AI agents

or integrations with cloud AI platforms.

Solid experience with

.NET Core

for building

RESTful APIs

and backend services.

Experience with

modern frontend frameworks , ideally

Angular , and with

web components

(Stencil or similar) and

micro frontend architectures .

Strong knowledge of

relational databases

(preferably

SQL Server ): writing complex queries, understanding schemas, and integrating with existing data models.

Experience with

infrastructure as code , ideally

Terraform , and cloud deployments (Azure/AWS/GCP).

Solid understanding of

software architecture

and

distributed systems

(modularization, scalability, resilience).

Experience integrating with or modernizing

legacy enterprise systems





without impacting existing functionality.

Good understanding of

security best practices : identity and access management, trust boundaries, idempotency, audit trails, PII protection, feature flags/kill switches.

Hands‑on experience with

CI/CD tools

(Azure DevOps, GitLab CI, Jenkins, GitHub Actions, etc.) and use of

Git .

Strong knowledge of

software engineering best practices : clean code, design patterns, testing, code review, documentation.

Professional level of English , able to collaborate with international teams – your day‑to‑day work will be in English.

What you will do

Design, build, and maintain

Python‑based AI agents

using modern agentic frameworks and cloud AI runtimes.

Develop and maintain

.NET Core APIs

that act as downstream services for the AI agent layer.

Build and integrate

Angular micro frontends

and

Stencil web components

into an existing enterprise shell application.

Work with

SQL Server

databases: write and optimize queries, understand and evolve schemas, and integrate with existing

payroll data models .

Write and maintain

Terraform

code to define and manage cloud infrastructure for the platform.

Integrate new

AI and automation capabilities

into

legacy enterprise payroll systems

without breaking existing functionality.

Collaborate closely with

frontend, backend, AI, and infrastructure teams

to deliver end‑to‑end features.

Implement and enforce

security and compliance best practices





across the stack (identity, auditability, PII redaction, feature flags, etc.).

Contribute to

technical design documentation, READMEs, and the team knowledge base , helping to spread best practices and onboard new team members.

Strong

problem‑solving

skills and

analytical thinking , with the ability to understand complex business and technical domains (payroll, HR, compliance).

Excellent

communication skills

and ability to work in

multidisciplinary teams

(engineering, architecture, product, operations, business stakeholders).

Proactive attitude , strong sense of

ownership , and focus on

continuous improvement

and automation.

Comfortable working in

agile environments

(Scrum, Kanban), participating in ceremonies and contributing to team rituals.

Experience in

financial services, payroll, HR tech

or other

highly regulated sectors .

Experience with

event‑driven architectures

and

messaging systems

(Kafka, RabbitMQ, etc.).

Experience with

DevSecOps tools

(SAST, DAST, dependency analysis, secrets management).

Familiarity with

observability and reliability practices

(monitoring, logging, alerting, SRE concepts).

Experience with

API gateways, service mesh , or

service discovery

tools.

Career growth:

70% of our senior leaders started in junior positions.

Continuous learning:

access to our Technology Academy, Udemy courses, webinars, and company‑funded certifications.

Flexibility:

remote work options, flexible working policies, and social benefits (meal vouchers, transport, childcare support, private health insurance, etc.).

Well‑being:

our

WeCare

program supports employees in critical situations.

Personal development:

annual training budget to boost both your hard and soft skills.

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📌 IA ENGINEER (Madrid)
🏢 Amaris Consulting
📍 Madrid