About Light

At Light, we’re on a mission to replace the ERP. Traditional systems are slow, painful to implement, and built for factories — not modern companies. Our Smart Financial Platform (SFP) is built for today’s global, service-based businesses, automating accounting, reporting, and financial flows with speed and simplicity.

In just a short time, we’ve gone from idea to powering operations for leading companies like Lovable, Legora, and Keyshot. We build with our customers, ship at high velocity, and obsess over making finance software that people actually love to use.

You’re joining an early-stage company defining a new software category, backed by top investors including Balderton, Atomico, Cherry Ventures, Seedcamp, and Entrée Capital. Our advisory board includes the former CTO of Workday Financials, the Chief Architect of SAP S/4HANA along with EY and Oracle SVPs. At Light, you’ll work with exceptional people, build category-defining products, and have the freedom to shape something truly transformative.

How you would fit into the team

This role sits at the heart of Light’s onboarding and engineering team. You’ll work closely with our clients, partners, banks and fellow engineers to build the money backbone of the Smart Financial Platform. Payments are a core pillar of Light’s mission — powering everything from cross-border transactions to automated accounting — and your work will directly shape how global businesses move money through our system.

You’ll set up and maintain host-to-host integrations (mainly over SFTP and SWIFT-via-SFTP), exchange SSH and PGP keys, run payment and statement tests, and keep our payment pipelines healthy.

It’s not pure software engineering, but you’ll read and write code when needed, debugging payment formats, checking database records, or improving an integration. If you like combining structured ops work with technical problem-solving, this role is for you.

You’ll work in the Onboarding team, partnering with bank tech teams, customer success, and our engineers.

The Bank Connectivity Operations Engineer role

• Set up and maintain secure host-to-host bank connections (SFTP), including SSH/PGP key exchange and endpoint configuration.

• Integrate and test payment systems end-to-end — from ISO 20022 file validation (PAIN and CAMT) to live penny tests with banks and customers.

• Lead technical bank integrations and payment projects, covering scoping, architecture, and delivery across domestic and international payments.

• Investigate and resolve payment or statement issues using observability tools, logs, and database queries.

• Improve reliability and scalability by streamlining processes, automating playbooks, and building maintainable backend infrastructure.
  
  

Your qualifications could be:

• 2–3 years of experience building backend systems in payments, fintech, or financial services — ideally with H2H, SFTP, or ISO 20022 integrations.

• Strong backend development skills in Kotlin, Java, Go, or Python, and solid understanding of databases (Postgres or similar).

• Hands-on experience with payment file formats (PAIN and CAMT) and familiarity with SEPA, ACH, Wires, Faster Payments, CHAPS, and Bacs.

• Clear communicator who can collaborate effectively with banks, customers, and teammates across time zones.

• Structured, detail-oriented problem solver who takes ownership and continuously looks for process improvements.
  
  

Bonus points:

• Direct experience integrating with card networks, payment gateways, or banking partners.

• Built or scaled payment services in a high-growth startup.

• Familiarity with AWS infrastructure, Docker, or Kubernetes.

  
  

Our Tech Stack:

• Hosted on AWS

• Postgres DB

• Kotlin Monolith

  
  

Here’s what to expect in our hiring process…

1. Short chat with our Chief of Staff

2. Take-home challenge

3. Interview with two future colleagues

   1. Discussion on the take-home challenge

   2. Getting to know each other

4. CTO Interview

5. Offer
   
   

Tips to stand out

• Show us who you are through your application and don’t limit yourself to a resume.

• Share examples of payment projects or integrations you’ve built and delivered.

• Bring metrics to back up your impact (e.g. transaction throughput, time-to-market).

• Tell us why you want to help build Light’s payments foundation.
  
  

The good stuff

In addition to being part of a great team and working in a really fun and innovative environment, we offer:

💸 A competitive salary + stock options in our fast-growing start-up.
🍼 Paid parental leave.
🏝 25 days of annual leave + public holidays in the country where you are based.
🥳 Regular socials and company off-sites.
🚀 A huge opportunity for career growth as you'll help shape a market-defining product.

The famous last words

Working at Light means you're embarking on an exciting journey to reshape the future of multinational financial operations. Our cheat-code is that we've built something like this before – and are now doing it again, only better. Our goal is to make global finance effortless and empower companies to make informed decisions.

If you are passionate, have absurdly high ambitions, want to ship fast and have fun, then we would love to hear from you at careers@light.inc.

Join the rocket ship while it's taking off 🚀