--- title: 'Senior Fullstack Engineer at Monks' canonical: 'https://feeny.ai/job/senior-fullstack-engineer-monks-colombia-p243cmxhx7dq' type: 'job' last_seen: '2026-10-17' --- # Senior Fullstack Engineer at Monks - **Company:** Monks - **Location:** Colombia - **Posted:** 2026-10-15 - **Last confirmed live:** 2026-10-17 - **Apply:** https://www.monks.com/careers/6212139004/job?gh_jid=6212139004 ## Job description Please note that we will never request payment or bank account information at any stage of the recruitment process. As we continue to grow our teams, we urge you to be cautious of fraudulent job postings or recruitment activities that misuse our company name and information. Please protect your personal information during any recruitment process. While Monks may contact potential candidates via LinkedIn, all applications must be submitted through our official website ([monks.com/careers](http://monks.com/careers)). Senior Full-Stack Engineer Location: Remote from Colombia .Monks Technology Services, part of Media.Monks and S4 Capital, is a global consulting firm mastering AI-powered transformations for the Fortune 100. We combine long-term strategic thinking, deep enterprise experience, and a human-centered approach to help clients transform business processes and dominate their industries. ## About the Role As a Senior Full-Stack Engineer, you’ll build an in-house platform that helps battery engineers ingest, explore, and act on test data. The platform transforms raw equipment output into a consistent data model, supports qualification decisions through interactive charts and dashboards, and provides an AI assistant grounded in the same data. You’ll own features end to end—from the first stakeholder conversation through data models, APIs, and user interfaces—with substantial autonomy. As the platform replaces tools engineers rely on daily, you’ll help earn their trust through accuracy, traceability, and a thoughtful rollout. ## Responsibilities - Design and build Python backend services, REST APIs, data access layers, and background jobs for ingestion and long-running computations. - Develop robust parsers that transform vendor files, CSVs, and binary exports into validated records, handling inconsistent headers, changing units, and malformed inputs with clear rejection reasons. - Implement traceable data transformations for capacity, efficiency, resistance, and cycle aggregates, ensuring consistent results across pipelines and on-demand calculations. - Build React and TypeScript interfaces with interactive charts for large time-series datasets, including millions of points, cross-cell and cross-test overlays, and detail-preserving zoom. - Integrate an AI assistant using LLM APIs, tool calling, and retrieval over platform data and documentation, with citations and evaluations that identify incorrect answers. - Work directly with test engineers, lab supervisors, and upstream data owners to clarify needs, scope deliverables, and explain technical trade-offs. - Own technical decisions across the data model, API, and user experience, delivering features from discovery through production with minimal oversight. - Implement production observability using structured logging and request correlation, and support reliable delivery through Docker and GitLab CI. - Maintain rigorous tests, strict typing, small reviewable changes, and accurate documentation while avoiding premature abstraction. - Support an incremental transition from existing tools without disrupting engineers’ daily workflows. - Other duties as assigned ## About You ## Qualifications & Skills - 6+ years of experience building production software, with substantial experience across both backend and frontend development. - Strong Python backend skills, including REST API design, asynchronous services, background processing, authentication, authorization, and performance tuning under real load. - Experience with relational data modeling, fluent SQL, and schema migrations in live systems. - Hands-on Python data processing experience with pandas, Polars, or NumPy. - Strong modern TypeScript and React skills. - Experience shipping interactive data visualizations to real users, ideally with large or time-series datasets. - Experience building parsers and transformation pipelines for messy real-world data, including vendor formats, schema drift, partial files, and unit handling. - At least one LLM integration shipped in a product, including prompt design, tool or function calling, retrieval, and a method for evaluating output quality. - A track record of leading requirements conversations with non-engineers and translating them into scoped deliverables, supported by concrete examples. - Demonstrated autonomy through projects you have scoped, built, and shipped with minimal oversight. - Strong communication skills and English proficiency at B2 level or above. ## Preferred Qualifications - Experience with FastAPI, Pydantic v2, SQLAlchemy 2.x, and asynchronous Python at scale. - Familiarity with a Python 3.12 toolchain using pytest, uv, Ruff, and mypy in strict mode. - Background in battery technology, hardware testing, lab information management, or manufacturing data. - Experience optimizing time-series workflows through downsampling, columnar formats such as Parquet or Arrow, or GPU-accelerated or canvas rendering. - Experience with production RAG or agent systems, including evaluation and guardrails. - Experience working with scientific or engineering data where derived metrics inform consequential decisions. - Experience replacing a legacy system through incremental adoption rather than a hard cutover. .Monks Technology Services does not discriminate on the basis of race, sex, color, religion, age, national origin, marital status, disability, veteran status, genetic information, sexual orientation, gender identity or any other reason prohibited by law in provision of employment opportunities and benefits. At .Monks Technology Services, we believe in fostering an environment where a diversity of perspectives can thrive. We proactively work to design hiring processes that promote equity and inclusion while mitigating bias. We celebrate diversity and are committed to building a team that reflects the communities we serve. We welcome and encourage qualified applicants, from all backgrounds, who are excited to contribute to our mission. Unsure if your skills meet all of our requirements? Apply anyway! We would love to learn more about you and find out about how your skills could add value. At .Monks Technology Services we value open communication and feedback. We believe that diversity of identity, perspective, and experience makes us stronger; we would love to hear your perspective too! #LI-Remote #LI-ML1 ## About Monks Monks is the global, digital-first, data-driven, unitary operating brand of S4Capital plc, where our culture centers on how we show up for the work and for one another. That begins with the commitment to strive for mastery—taking deep pride in our craft and creating work that sets the bar. In everyday execution, we drive momentum by choosing bold action rather than waiting for certainty. Above all, our teams are stronger together, bringing diverse perspectives into a unified team that communicates with clarity, trust, and mutual respect. This commitment to craft and innovation translates directly into widespread industry acclaim: Monks was named a Contender in The Forrester Wave™: Global Marketing Services and a leader in the 2026 Gartner® Magic Quadrant™ for Global Digital Marketing Agencies. It ranks among Cannes Lions' Top 10 Creative Companies (2022-25) and remains the only partner featured in AdExchanger’s Programmatic Power Players list every year (2020-24). Named Adweek’s first AI Agency of the Year (2023) and The One Show’s inaugural AI Pioneer Organization (2025), Monks was also awarded Business Intelligence Group’s 2026 Excellence in Artificial Intelligence Award in the Human-Machine Interaction Team category. Additionally, Monks.Flow earned AI-based Marketing Solution of the Year at the 2026 AI Breakthrough Awards and a 2026 Global Generative AI Award in the Agentic Marketing Innovation category. Finally, Monks achieved a record-breaking number of FWAs and continues to hold the most of any partner. We are an equal-opportunity employer committed to building a respectful and empowering work environment for all people to freely express themselves amongst colleagues who embrace diversity in all respects. Including fresh voices and unique points of view in all aspects of our business not only creates an environment where we can all grow and thrive but also increases our potential to produce work that better represents—and resonates with—the world around us. ## About Monks ## Company Overview - **One-liner**: Monks is a global digital-first marketing, technology services, and consulting company that connects content, data, and digital media to help ambitious brands grow. - **Entity Type**: Public (Wholly owned subsidiary of S4 Capital plc, LSE: SFOR) - **Headquarters**: London, United Kingdom - **Founded**: 2001 - **Founders**: Wesley ter Haar, Gin Roberscheuten, Terrence de Kat (formerly Terrence Koeman) ## Core Business - **Primary industry/industries**: Advertising Services, Marketing & Technology Consulting, Digital Content Production - **Target customers**: B2B, primarily large Enterprises and global brands (Partners with 24 of BCG's 50 most innovative companies, including Netflix, Meta, HP, Dove, and Mondelēz) [monks.com] - **Mission or purpose statement**: To be a catalyst for change in the industry and communities through technological innovation, creativity, and impactful work, aiming to "win the decade" by making best-in-class work and being the best place to work. [monks.com/careers] ## Products & Services - **Monks.Flow (AI Platform)**: An AI-powered operating system designed to orchestrate marketing and technology into unified, intelligent systems for real-time brand management. [linkedin.com] - **Marketing Orchestration**: A service that boosts efficiency and creativity to accelerate marketing results at any scale. - **Glass Box Media**: A service offering total visibility and control for smarter, more impactful media investments. - **Technology Services**: Modernizing infrastructure, accelerating product and platform innovation, and delivering next-generation customer experiences. - **Content Production**: A global studio model blending strategy, talent, and production for effective content with cost savings. - **Data & AI Consulting**: Services focused on transforming data to fuel customer experience, including AI-powered tools for creative asset production. ## Market Standing - **Valuation/Market Cap**: Not publicly available for the subsidiary. Parent company S4 Capital plc has a public market cap. - **Key Metric**: Annual Revenue of **$1.5 Billion** (as per LinkedIn data) [linkedin.com] - **Notable Investors/Partners**: Parent company S4 Capital plc (Founded by Sir Martin Sorrell). Key Technology Partners include Salesforce, Meta, NVIDIA, Amazon Web Services (AWS), Google Marketing Platform, and Google Cloud. [monks.com/what-we-do] - **Growth Signals**: Despite a -6.4% YoY headcount decline (now 4,787 employees), the company maintains a massive global footprint across 62 countries. It is actively investing in its AI transformation, highlighted by the "Monks.Flow" platform. The company recently rebranded from MediaMonks to Monks in 2024, signaling a strategic shift. [linkedin.com] ## Competitive Advantages - **Scale & Global Reach**: Operates in 62 countries, giving it a unique ability to execute complex, global campaigns from a single P&L. [linkedin.com] - **AI-First Approach**: Has aggressively moved into AI-powered services, including training custom AI models for clients (e.g., Dove's Real Beauty campaign) and building its own AI operating system (Monks.Flow). [monks.com/what-we-do] - **"One P&L" Model**: Unlike traditional holding companies, Monks offers a unified, non-siloed approach to content, data, and media, which it markets as "foundationally different." [monks.com/careers] - **Premium Client Roster**: Partners with 24 of BCG's 50 most innovative companies, including tech giants like Meta, Netflix, and HP, creating a strong "halo effect" for talent and capabilities. [monks.com/what-we-do] ## Strategic Focus - **AI Acceleration**: The company's clear priority is embedding AI across its entire workflow ("from strategy to supply") and scaling its "always-on agents" to change how work is done. - **Winning the Decade**: Pushing to become the dominant digital partner for brands by unifying marketing and technology into one performance system. - **Radical Transparency**: A focus on data-driven performance and clear measurement, moving away from traditional opaque agency models. ## Why Work Here - **Culture of Innovation**: Describes itself as a "digital-first" powerhouse that is "disrupting the industry." The emphasis on AI and technology suggests a challenging, forward-looking environment for engineers and data scientists. [monks.com/careers] - **Diversity, Equity & Inclusion**: The company explicitly states a commitment to being a "catalyst for change" with a purpose-driven culture focused on DEI. [monks.com/careers] - **Global & Hybrid Work Environment**: With offices in over 30 cities globally (including London, New York, San Francisco, Amsterdam, Singapore, Buenos Aires, and Tokyo), the company offers significant opportunities for international exposure and likely supports a hybrid work model. [monks.com/careers, linkedin.com] - **Focus on Engineering & Tech**: With job postings for roles like "Fullstack Engineer," "Implementation Engineer," "Battery Test Engineer," and "AI Craft Director," the company is actively building its technical practice, offering opportunities to work on complex systems at scale. [linkedin.com] - **Warning**: The company states it will never ask for payment as part of the recruitment process. [monks.com/careers] ## Sources 1. [Monks Official Website](https://www.monks.com/) 2. [Monks Careers Page](https://www.monks.com/careers) 3. [Monks LinkedIn Profile](https://www.linkedin.com/company/monks) 4. [Monks "What We Do" Page](https://www.monks.com/what-we-do) 5. 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