Skip to content

Open nowFirst seen 1 hour ago

Integrations Engineer

Zinc11 open roles

Pay
£72,000 – £75,000 a year
Where
London, England
Work mode
Hybrid
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowIntegrations EngineerZinc · London, England
  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Zinc's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

13.3% of postings close within 7 days. Measured by our own scanner across the market. Zinc postings stay open a median of 5 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.6%3 days
  3. 13.3%7 days
  4. 21.3%14 days
  5. 35.7%30 days
  6. 59.1%60 days
This job: first seen 1 hour ago

Zinc median: 5 days open

The posting

Zinc is growing its Integrations team. Integrations with ATS and HRIS platforms such as Workday, Greenhouse, iCIMS, Lever and SmartRecruiters are one of our biggest levers for growth, and demand from Partnerships and Sales is outpacing what our current team can build. As an Integrations Engineer, you'll add the engineering capacity to change that. 🚀

Your job is to increase the number and quality of Zinc's integrations. You'll design, build and scale connections with third-party platforms, and evolve our Partner API so partners can build on Zinc with less hand-holding.

This is an engineering role. Support and onboarding sit with our dedicated Integration Support function in Partnerships, so your time goes on building, hardening and improving integrations. You'll also be the escalation point for issues support can't resolve. You'll work closely with Product, Partnerships and Integration Support, and report to the Engineering Manager for Integrations.

Key Responsibilities 🗝️

  • Building integrations end to end 🔌 – Read partner API docs, spec with the PM, then build, test and release new integrations, from Greenhouse Harvest API upgrades to CV checks across ATSs.
  • Hardening what's live 🛡️ – Move existing integrations off deprecated mechanisms (such as Greenhouse polling to PATCH) and strengthen error handling, retries and idempotency.
  • Evolving the Partner API 🧩 – Own endpoint design, versioning, webhooks, docs and sandbox so partners can build on Zinc with less hand-holding.
  • Building reusable patterns ♻️ – Create shared connector and mapping layers that cut the cost of every new integration.
  • Giving support the tools 🔭 – Build internal tooling and observability so Integration Support can diagnose issues themselves.
  • Being the escalation point 🚨 – Root-cause and fix the issues Integration Support can't resolve. You're not the first line for customers.
  • Shaping what we build 🎯 – Give Product and Partnerships technical feasibility input during discovery, through the team's planning process.
  • Raising the bar 🤝 – Review code, set testing standards, and pick up occasional Vue/Nuxt work on integration settings screens.

Skills, Knowledge and Expertise 🚀

Hard skills ⚡

  • Integration Engineering 🔌 – You've built and maintained production integrations against third-party APIs you don't control, in code rather than config. You know the trade-offs: sync vs async, webhooks vs polling, retry strategies.
  • TypeScript / Node.js 💻 – Production experience. Our backend is TypeScript and we standardise across the codebase.
  • REST APIs & Webhooks 🔗 – OAuth2, pagination, rate limits, retries and idempotency are second nature. They're core to every integration.
  • Data Mapping 🗺️ – You're comfortable moving data between JSON, XML and SOAP. Workday and iCIMS are XML/SOAP-heavy.
  • Testing 🧪 – You're proficient with Jest and with contract and integration tests using mocks, because integrations fail silently.

What we offer 🍉

  • 24 days holiday + Bank Holidays + your birthday off 🎉
  • £1200 annual benefits allowance (ThanksBen, from month 2)
  • Early finish Fridays (16:00)
  • Yearly company retreat abroad ✈️
  • 30 days to Work from anywhere 🌍
  • Enhanced Maternity, Paternity, and Adoption Leave (13 weeks full pay, 17 weeks half pay, then SMP for maternity, 2 months full pay, then statutory pay for paternity/adoption) 🐣
  • Statutory pension with NEST (3% employer, 5% employee)
  • Zinc shares, issued through the EMI Scheme
  • Unlimited access to Spill Therapy
  • Company socials, quarterly team socials Free Monday lunches
  • Nursery workplace benefit scheme (Yellownest)
  • Option to lease an electric car through Electric Car Scheme
  • Celebrated Zinc anniversaries 🥳
From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against Zinc's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.
  3. We apply on Zinc's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.
  4. Every reply, sorted

    Zinc's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.
  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.