Bank Integration Engineer

Job not on LinkedIn

🕒 June 11

🇬🇧 United Kingdom – Remote

⏰ Full Time

🟢 Junior

🟡 Mid-level

💻 Solutions Engineer

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Light

WebsiteLinkedInAll Job Openings

5001 - 10000 employees

Founded 1905

⚡ Energy

👥 B2C

🤝 B2B

Energy • B2C • B2B

Light is a Brazilian electric utility that generates, distributes and commercializes electricity to residential and commercial customers in the Rio de Janeiro area. The company provides billing and customer services (online and in-person), grid maintenance and expansion, anti-theft and emergency response operations, programs for energy efficiency, distributed generation and sustainability, and community and cultural initiatives.

📋 Description

• 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.

🎯 Requirements

• 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. • Practical experience using AI or emerging technology tools to improve productivity, insight, or decision-making, with the ability to apply first-principles thinking to new problems.

🏖️ Benefits

• A competitive salary + potential stock options • 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.