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Form3 - External

Senior Software Engineer (Go) - AI Resilience & Security Enhancements (Contract)

London
Posted 1 day ago
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Senior Software Engineer (Go) - AI Resilience & Security Enhancements (Contract)

THE PROJECT

As a Senior Software Engineer, you will be engaged to deliver key initiatives that strengthen the security and resilience of Form3's cloud-native payments platform. Working within a collaborative engineering environment, you will:

  • Design, build, and implement capabilities that enhance the security, trust, and resilience of our systems.
  • Support the delivery of defined project outcomes.

This engagement is centred on hands-on software engineering and security-focused platform development.

You’ll apply your expertise across areas such as:

  • API security
  • Cryptographic controls
  • AI governance
  • Software supply chain security
  • Automated security tooling

Deliver production-ready solutions working alongside:

  • Engineers
  • Platform specialists
  • Security experts

Focus on delivering:

  • Scalable
  • Maintainable capabilities embedded in the software development lifecycle
  • Value beyond the engagement

WE’RE LOOKING FOR ✅

  • Deep understanding of designing and building distributed systems
  • Enjoys working on complex challenges within critical software, where high performance and robustness are essential
  • Familiarity with:
    • Cloud and containerisation technologies
    • Test automation tools
    • CI/CD pipelines
  • Interest in owning projects end-to-end, including supporting their launch in production
  • Appreciation of clean code and software engineering best-practice
  • Experience with:
    • Go
    • A “right tool for the job” mentality
  • Great communication skills and a passion for sharing knowledge, along with collaborative work

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

P

Graduate Consultant — 2026 Scheme

PwC·London, UK
ÂŁ35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

TECH STACK ⚙️

Here are of the tools and methodologies we utilise:

Infrastructure:

  • AWS
  • GCP
  • Azure
  • Kubernetes

Platform:

  • CockroachDB
  • NATS JetStream
  • Elasticsearch
  • Vault
  • Cilium

Tools:

  • Terraform
  • Flux
  • GitHub
  • Prometheus
  • Pact.io
  • Tilt

Code:

  • Go (alongside some Java)
  • Containerised microservices
  • CQRS
  • Open source

Ways of Working:

  • TDD/BDD
  • Pair Programming
  • 100% remote
  • SecDevOps

INTERVIEW PROCESS ✍️

Stage 1: Screening Call with Talent Team

Stage 2: Take-home test

Stage 3: Technical interview

We may occasionally add an extra interview stage to ensure we’re hiring the right candidate!


LOCATIONS 📍

We are currently engaging with contractors from the following locations:

Austria Bulgaria Croatia Cyprus Estonia Greece Hungary Italy Latvia Lithuania Malta Romania Slovakia Slovenia

All contractors must visit the office on their first day to collect remote work equipment.


ABOUT FORM3 đź’ˇ

"Revolutionising the world of payments with cutting-edge technology and innovative solutions."

For more information, check our pages.

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OUR DEI&B COMMITMENT

We hire a diverse, talented team from varied backgrounds and are committed to:

  • A workplace based on:
    • Diversity
    • Open-mindedness
    • Curiosity
  • A workforce united by company values (co-created together!)
  • Celebrating unique differences

Our processes:

  • Embrace equal opportunity
  • Prevent discrimination by supporting a work environment that recognises personality & personal characteristics

We believe: The more inclusive and inclusive we are, the better our work will be.

As an inclusive employer, we will guarantee interviews for all neurodiverse and physically disabled candidates meeting minimum criteria for the role.

Candidates are encouraged to submit requests for reasonable adjustments during recruitment, such as:

  • Job adverts in alternative formats
  • Adjustments at interview stage

If you self-identify as neurodiverse or physically disabled (per UN definitions) under this scheme and require any adjustments to the process, please:

Email us at careers@form3.tech with:

  • Clear indication of consent to process this data
  • Details of requested adjustments

For further information, refer to our Recruitment Data Policy.

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Skills

Go
Distributed Systems
API Security
Cryptographic Controls
AI Governance
Software Supply Chain Security
Cloud Computing
Containerization
CI/CD
TDD/BDD
Pair Programming
SecDevOps

Location

London, England, United Kingdom

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