Agentic Tooling Engineer EU/UK remote (m/f/d) remote

Pliant; España; Remote; EUR 110,000 - 150,000; Full time

Benefits offered by this job

Remote work flexibility

Attractive remuneration

OS choice (Windows/Mac)

Flat hierarchy

Talent development

Mobility benefit

Wellhub Membership

Pliant Card credit

Open-source interest

Job summary

Pliant is hiring an Agentic Tooling Engineer to join the Office of the CTO. You will own the shared infrastructure that agentic tooling depends on, ensuring it is reliable, measurable, and easy to adopt. This is an internal product with versions, evals, and users.

You will work with the Developer Experience and Platform Infrastructure teams to move therapy-of-tooling improvements into production-ready checks and enable continuous delivery for AI agents across the organisation.

Qualifications

• 7+ years of software engineering on production systems.
• Strong Python, Git, and GitHub; familiarity with Java/Kotlin.
• Experience with LLM evaluation and context engineering.
• Precise technical writing and the ability to influence without authority.

Responsibilities

• Build and maintain shared tooling for the framework across agent tools.
• Support teams building their own agentic tooling and help ideas move across tools.
• Create evals and certification to prove harness changes are better before shipping.
• Move stable rules from prompts into platform checks run for every author and tool.
• Run feedback loops, collect friction, fix root causes, and add tests.
• Drive adoption across the tech org by pairing with teams and training.
• Suggest improvements and help define new processes and agents on top.

Skills

Agentic tooling

Python

Git & GitHub

LLM evaluation

System design

Technical writing

Java & Kotlin

Staff level leadership

Regulated environment

Developer tooling

Tools

Claude Code

Codex

Cursor

Windsurf

Aider

Devin

CodeRabbit

Job description

ABOUT US

Pliant is a modular B2B payments platform that combines commercial card issuing, payment accounts, FX, and spend management in one system, adapting to existing setups rather than requiring customers to replace them.

Businesses across industries such as travel, e-commerce, and insurance use Pliant to manage complex payment workflows with cards, backed by credit lines Pliant underwrites itself.

Fintechs and software platforms embed Pliant's payment infrastructure into their own products, from API-based Cards-as-a-Service to fully white-label solutions. Banks use Pliant's Card & Spend OS, the customer-facing interface, on their own infrastructure to run card programs.

Founded in 2020 and headquartered in Berlin, Pliant serves 5,000+ businesses and 40+ partners across Europe and the United States. A principal member of Visa and Mastercard, Pliant issues commercial cards in 13 currencies across 32 countries, under its own European e-money license and with licensed partners in the UK and US.

Learn more at www.getpliant.com

ABOUT THE ROLE

Pliant's tech organisation has more than 100 people and is moving to a shared agentic framework: one way to take work from idea to production with AI agents, with clear human decisions and automated checks. We are hiring an Agentic Tooling Engineer (m/f/d) to join the Office of the CTO, reporting directly to the CTO and working closely with the Developer Experience team. You will own the shared infrastructure all agentic tooling depends on and help make the framework reliable, measurable, and easy to adopt. This is not a prompt engineering role. The framework is an internal product with versions, evals, and users.

WHAT YOU'LL DO

• Build and maintain the shared tooling of the framework: distribution and installation across agent tools, shared skills and agents, lints, eval runners, and the interfaces between harnesses.

• Support team members who build and maintain their own agentic tooling (harnesses, skills, agents) in line with the requirements of the framework, and help good ideas move across tools.

• Build evals and certification so that a team can prove a harness change is better before it ships.

• Move stable, rule-based steps out of prompts into platform checks that run for every author and every tool, together with Developer Experience and the other Platform Infrastructure teams.

• Run the feedback loops: collect friction from real use, fix the cause, and add a test so the failure does not return.

• Drive adoption across the tech organisation: pair with teams, train people, and measure delivery outcomes.

• Suggest and implement improvements to the framework, and help define new processes and agents on top of it.

WHAT YOU'LL BRING

• Deep, daily hands-on experience with a wide range of agentic tools (such as Claude Code, Codex, Cursor, Windsurf, Aider, Devin, and CodeRabbit) and with the infrastructure that agents run on. You know where each one is strong and where it fails.

• Agentic tooling you built that other engineers use: skills, plugins, hooks, subagents, MCP servers, or custom agents.

• Experience with LLM evaluation and context engineering: evals for non-deterministic systems, reading failure traces, and understanding how the size, freshness, and consistency of context change what an agent does.

• 7+ years of software engineering on production systems, including developer tooling or an internal platform with real users. At Staff level, you have also set technical direction across several teams.

• Strong system design and a verification mindset: you know which controls must be deterministic and which can stay with a model.

• Strong Python, git, and GitHub (Actions, rulesets, CODEOWNERS); you read Java and Kotlin with ease.

• Precise technical writing and the ability to change how other engineers work without authority over them.

• A plus if you have experience in a regulated environment such as payments or banking, a security engineering background, or an open-source project you maintained.

WHAT WE OFFER

• The opportunity to work in a growing team with big responsibilities that thrives on a strong exchange of knowledge and excellence

• Attractive remuneration

• Your choice of preferred OS, Windows or Mac

• Flat hierarchy and transparent communication in a relaxed, professional atmosphere

• Opportunity to develop your talent in a dynamic team with ambitious goals

• Flexibility and possibility to work remotely

• Monthly mobility benefit

• Wellhub Membership

• Pliant Card with monthly credit to explore the product and enjoy food with colleagues

Pliant is an equal opportunity employer. We welcome applications from people of all backgrounds, identities and abilities, and are committed to an inclusive hiring process. If you need any accommodations during the interview process, please let us know.

At Pliant we use the Ashby AI Criteria to assist with looking over resumes against our job qualifications for this role. All final decisions are made by our Talent Team and Hiring Team.

A human is behind these processes. Ashby does not automatically reject candidates or make final hiring decisions. Our teams review all results and make the final hiring decision with every candidate that applies.