---
title: 'Polyglot Engineer (JS/Python/Go) at YLD'
canonical: 'https://feeny.ai/job/polyglot-engineer-js-python-go-yld-portugal-qyyqfam6a3zs'
type: 'job'
last_seen: '2026-09-08'
---

# Polyglot Engineer (JS/Python/Go) at YLD

- **Company:** YLD
- **Location:** Portugal
- **Posted:** 2026-05-19
- **Last confirmed live:** 2026-09-08
- **Apply:** https://job-boards.eu.greenhouse.io/yld/jobs/4870848101

## Job description

Location: Portugal

Department: Engineering

Employment Type: Permanent

About YLD:

Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay. We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done.

About the role:

As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious, passionate, driven, and enthusiastic. You should be skilled in problem-solving and experienced in designing scalable, resilient, and fault-tolerant architectures. You’re also an effective communicator and a strong team player. Together with your team, you’ll thrive in a fast-paced engineering environment, delivering outstanding results and exciting projects.

Your day-to-day responsibilities will look like this:

- Crafting excellent products! You will be building new features that meet the needs of our clients and customers;
- Continuously delivering changes to products, as our client is moving to a full CI/CD model;
- Working closely with your team, regularly collaborating and on engineering initiatives, to continually push yourselves to be better;
- Learning, growing, and mentoring the engineering team to accelerate their career growth and encourage them to progress;
- Working with the Lead to architect, design, build, and deliver highly available, always-on, zero downtime products;
- Being responsible for the production operation and monitoring of products in line with SLAs;
- Driving good practices within your team, making an impact on the whole department;
- Participating in regular show and tells, promoting your work to both your department and the wider company.

## Preferred Skills

- Proficiency in JavaScript/TypeScript, Python, and/or Go, with the ability to rapidly learn new languages;
- Experience with modern frameworks across the stack (FastAPI, Gin, Express, etc.);
- Production experience with React, modern build tools, state management, responsive design, and accessibility standards;
- Comprehensive testing experience (unit, integration, E2E, security) and performance optimization;
- Scalable system design patterns, load balancing, and high-availability architectures;
- Database design and optimization (both relational and NoSQL);
- API development (REST, GraphQL, gRPC) and event-driven architectures;
- Caching strategies and message queue systems (Redis, Kafka, RabbitMQ);
- Cloud platforms (AWS, Azure, GCP) with containerisation (Docker, Kubernetes);
- CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation);
- Monitoring, observability, and performance optimisation tools;
- You can keep a cool head when debugging production issues;
- Use AI tools to augment your work, applying sound judgement to adopt emerging technologies where they genuinely add value and increase your impact as an engineer.

You should apply if you are:

- Self-motivated, proactive and always looking for ways to improve and develop yourself;
- A good communicator, both in writing and verbally. You’ll be able to explain technical ideas and concepts in business-friendly language.
- Detail-oriented;
- Possess strong problem-solving skills that balance innovation with pragmatic technology choices to solve business needs;
- Used to working in a team-oriented, collaborative environment;
- Analytical and problem-solving-oriented;
- A genuine believer in diversity and fairness.

Benefits you’ll receive:

- Company Private Health care
- Enhanced fully paid maternity and paternity leave for up to 6 months
- 25 days annual holiday (excluding Public Holidays)
- €2000 annual allowance for Training/Conferences
- €300 annual allowance for additional hardware
- Mental Health support: access to Oli app
- Meditation/Sleep support: Headspace or Calm app subscription
- Bonus (depending on Company performance and results)
- Company laptop
- Generous referral schemes

Our typical Recruitment Process looks like this:

- 1st Interview with someone from the Talent team (30/45 mins)
- Technical Interview with our Senior Developers (1h30)

[Get a glimpse of what it's like working at YLD! 🤳](https://www.instagram.com/yld.io/)

[Check out our LinkedIn page](https://www.linkedin.com/company/yld/)

We live and breathe our values, and know you will too:

- Growing every day
- Including everyone
- Relationships built on honesty and ethics
- Inspiring solutions
- Winning together

We’re an equal-opportunity employer and value diversity in all its forms. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability. We also offer a remote-first working environment, with flexible working and work–life balance as standard for all employees.

## About YLD

## Company Overview
- **One-liner**: YLD is a product design and software engineering consultancy that embeds senior designers and engineers inside client teams to redesign how they deliver, with a strong focus on AI-augmented delivery and building lasting internal capability.
- **Entity Type**: Private (Self-funded/Bootstrapped)
- **Headquarters**: London, United Kingdom (with offices in Lisbon, Portugal and Porto, Portugal)
- **Founded**: 2013
- **Founders**: Nuno Job (Chairman of the Board)

## Core Business
- **Primary industry**: IT Services and IT Consulting (specialising in software engineering, product design, data science, and AI)
- **Target customers**: B2B, Enterprise clients in Fintech, Media, SaaS, Insurance, Healthcare, Retail, Travel Technology, and Energy sectors. Notable clients include DAZN, The Economist, CondéNast, Trainline, NewDay, and GoDaddy.
- **Mission or purpose statement**: "To help businesses succeed by cultivating a culture of learning, growth and innovation" — leaving teams and tech in a better space, building capability not dependency.

## Products & Services
- **Embedded Teams**: Senior designers and engineers sit inside the client’s codebase and standups. AI runs through how they deliver, making the team move faster than traditional consulting. Design sits alongside engineering from day one.
- **AI Acceleration Sprint**: A fixed-fee, 2-8 week engagement inside a live product to find where AI can make the team deliver faster and implement it, leaving a working implementation in the codebase.
- **AI Readiness Assessment**: A short, vertical-specific engagement (for fintech, media, SaaS) that examines use cases, data, and regulatory position, returning a prioritised roadmap with prototype validation.
- **AI Governance**: Helps regulated clients navigate the EU AI Act, FCA guidance, and the UK AI Bill — classifying risk, designing controls, and engineering them into production.
- **Fractional Chief AI Officer**: An embedded AI leader who sits in leadership meetings and shapes strategy, backed by a team that builds what gets decided.
- **Delivery Transformation**: Helps client engineering and product teams redesign how they deliver so speed gains stick after YLD leaves. Includes workflow redesign, tooling, training, and embedded coaching with baseline metrics.

## Market Standing
- **Valuation/Market Cap**: Not publicly available (self-funded, bootstrapped)
- **Key Metric**: 138 employees (+15.1% YoY growth), 14,339 LinkedIn followers (+62.2% YoY)
- **Notable Investors/Partners**: Self-funded. Clients include DAZN, The Economist, CondéNast, Trainline, NewDay, GoDaddy, and FARFETCH. Merged with digital product design agency "Make Us Proud."
- **Growth Signals**: +15.1% headcount growth YoY, operates in 11 countries (including Portugal, Brazil, Romania, Spain, Italy), recognised as a Top 10 UK Tech Talent Employer by Hired.com.

## Competitive Advantages
- **AI-first delivery model**: AI runs through how every team delivers, not as a separate offering. This combination of product thinking, design judgement, and engineering depth is why clients stay for two years on average.
- **Capability transfer, not dependency**: YLD explicitly builds capability so clients can own and extend the product after YLD leaves. This is a core differentiator in the consultancy space.
- **Deep specialisation in regulated industries**: Expertise in EU AI Act, FCA guidance, and UK AI Bill compliance for fintech and media clients.
- **Self-funded independence**: Being bootstrapped means YLD can prioritise long-term client outcomes over quarterly revenue targets.
- **Early adopter credibility**: Among the first to adopt Node.js, React.js, React Native, Kubernetes, GraphQL, and Design Systems as a service. Founded Design Systems London, a non-profit community.

## Strategic Focus
- **AI-augmented delivery**: Making AI a core part of how every team delivers, not a separate initiative. This includes AI Acceleration Sprints, Fractional CAIO, and AI Governance.
- **Deepening vertical expertise**: Specifically targeting Fintech, Media, and SaaS with tailored AI Readiness Assessments and governance frameworks.
- **Building internal capability**: Shifting from traditional consulting to a model where client teams are left stronger, faster, and more self-sufficient.
- **Expanding regulated client base**: Capitalising on the EU AI Act and UK AI Bill to serve clients who need both strategy and production-grade engineering.

## Why Work Here
- **Remote-first culture**: YLD is a remote-first company with no set office days. Co-working spaces are available in London, Lisbon, and Porto for those who prefer them.
- **Generous benefits**: 25 days annual leave plus bank holidays, £2,000/€2,000 annual personal development budget, £300/€300 annual hardware allowance, medical insurance, mental health program, and generous enhanced parental leave.
- **Continuous learning**: Access to training, workshops, conferences, and a performance appraisal process every six months.
- **Inclusive environment**: The company emphasises "no hierarchy or rank" and that "everyone matters." Diversity and fairness are core values.
- **Real-world impact**: Work across diverse industries (healthcare, finance, media, internet services, education) solving challenging problems with modern technology.
- **Strong community**: Social events, company offsites, and a culture of knowledge-sharing, intellectual curiosity, and constructive feedback.
- **Recognition**: Named a Top 10 UK Tech Talent Employer by Hired.com for equality, efficiency, and transparency.

## Sources
1. [yld.com](https://www.yld.com/)
2. [yld.com/join-us](https://www.yld.com/join-us)
3. [yld.com/about-us](https://www.yld.com/about-us)
4. [Greenhouse Job Board](http://job-boards.eu.greenhouse.io/yld)
5. [LinkedIn - YLD Limited](https://uk.linkedin.com/company/yld)

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