Senior Full Stack Engineer - Core UX

Jobgether; Portugal; Presencial; EUR 69 000 - 142 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Competitive USD salary 80k–165k

Equity options

20 days paid time off

Global team offsites

Phone reimbursement

Gym reimbursement

Student stipend

Cross-functional collaboration

Impact on global industry

Ownership & learning culture

Resumo da oferta

Jobgether-partnered company seeks a Senior Full Stack Engineer focused on Core UX in Portugal. You will help refine product experiences, ensure a polished platform, and own end-to-end full-stack initiatives in a globally distributed team of engineers, data scientists, ML experts, and DevOps professionals.

The role emphasizes ownership, craftsmanship, and continuous experimentation to deliver exceptional user experiences while collaborating across backend, frontend, and cloud-enabled systems.

Qualificações

• 5+ years of professional software engineering experience with a focus on premium UX.
• Strong frontend fundamentals, design, debugging, and problem-solving.
• Experience with modern frontend frameworks, preferably React.
• Proficiency in JavaScript/TypeScript/Python; other OO languages OK.
• Experience with serverless tech and cloud environments (AWS).
• Relational databases experience, ideally PostgreSQL.

Responsabilidades

• Refine and enhance product functionality with usability, consistency, and performance in mind.
• Improve user experience through layouts, interactions, and overall polish.
• Design, develop, and maintain scalable full-stack solutions.
• Contribute to frontend development with modern frameworks; React valued.
• Develop backend functions including serverless architectures and cloud services.
• Collaborate with distributed teams across engineering, data, ML, and DevOps.
• Own projects end-to-end, from problem definition to completion.
• Communicate progress, surface blockers, and keep stakeholders informed.

Conhecimentos

React

JavaScript

TypeScript

Python

AWS

PostgreSQL

LLMs / AI

Ferramentas

AWS Lambda

EC2

Serverless

Descrição da oferta de emprego

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Full Stack Engineer - Core UX based in Portugal.

Join a global engineering team building sophisticated software and AI-powered solutions for a complex, high-impact industry.
As part of the Core UX team, you will refine existing product experiences and ensure the platform feels consistent, responsive, intuitive, and highly polished.
Your work will directly influence how users interact with the product every day, from visual details and interactions to performance and usability.
You will combine strong frontend expertise with full-stack engineering skills to deliver scalable and reliable solutions.
Working alongside full-stack, data, machine learning, and DevOps engineers, you will tackle challenging problems in a highly collaborative environment.
As part of a small, high-performing team, your technical decisions and contributions will have significant influence on both the product and the wider business.
This role is ideal for an experienced engineer who takes ownership, values craftsmanship, experiments continuously, and is motivated by creating exceptional user experiences.

Accountabilities

• Refine and enhance existing product functionality with a strong focus on usability, consistency, responsiveness, performance, and visual quality.
• Improve the overall user experience by paying close attention to layouts, interactions, interface behavior, and product polish.
• Design, develop, debug, and maintain scalable full-stack solutions that support evolving product requirements.
• Contribute to frontend development using modern frameworks, with React experience particularly valuable.
• Develop and maintain backend functionality, including serverless architectures, asynchronous workflows, and cloud-based services.
• Work effectively with relational databases and contribute to reliable, scalable data solutions.
• Collaborate closely with full-stack, data, machine learning, and DevOps engineers across a globally distributed team.
• Take end-to-end ownership of projects, driving initiatives from initial problem definition through implementation and completion with minimal oversight.
• Proactively communicate progress, surface blockers, ask thoughtful questions, and keep relevant stakeholders informed.
• Experiment with new approaches, measure results, and iterate rapidly to solve complex or previously unsolved technical and product challenges.
• Contribute to a culture centered on high standards, customer impact, transparency, accountability, continuous experimentation, and technical excellence.

Requirements

• 5+ years of professional software engineering experience, ideally including a strong track record of improving and polishing product functionality to deliver a premium user experience.
• Strong software engineering fundamentals, including system design, debugging, architecture, and structured problem-solving.
• Professional experience with a modern frontend framework, preferably React.
• Strong knowledge of JavaScript, TypeScript, and/or Python; candidates with equivalent experience in other object-oriented programming languages are also encouraged to apply.
• Experience with serverless technologies and cloud environments, including platforms or services such as AWS Lambda and EC2.
• Experience designing or working with asynchronous workflows and scalable backend systems.
• Solid experience with relational databases, ideally PostgreSQL.
• Strong attention to detail and a genuine appreciation for high-quality, polished user experiences.
• Demonstrated ownership, initiative, resilience, and the ability to drive projects forward with limited supervision.
• Excellent communication skills and a proactive approach to collaboration in a distributed, cross-functional environment.
• Comfortable experimenting, measuring outcomes, learning quickly, and iterating on challenging problems.
• Experience with LLMs, generative AI, or distributed systems is a valuable advantage.
• Ability to thrive in a fast-paced growth environment with ambitious goals and a high degree of responsibility.
• Authorization to work in the European country where you are based; the role is offered through a B2B or contractor arrangement, and visa sponsorship is not available.

Benefits

• Competitive salary ranging from$80,000 to $165,000 USD, depending on experience, performance, and geographic location.
• Significant equity options package.
• 20 days of paid time offper year.
• Global team offsites and opportunities to connect with colleagues internationally.
• Phone reimbursement.
• Gym reimbursement.
• Student stipend.
• Opportunity to work alongside ambitious, highly skilled professionals across engineering, data, machine learning, and DevOps.
• Significant individual impact within a small, high-performing team.
• Opportunity to work on challenging technology and AI problems while helping transform a major global industry.
• An environment that emphasizes ownership, experimentation, transparency, continuous learning, and measurable customer impact.

How Jobgether works:

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

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