Senior Backend Engineer

NALA

Senior Backend Engineer building NALA’s vIBAN, collections, and treasury infrastructure. Designing reliable payment APIs and orchestration for global transfers.

Posted 9/11/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and maintaining financial-grade systems, with a strong focus on API design, reliability, and operational readiness. Proven ability to translate business requirements into technical solutions while managing complex projects end to end.

Highest-signal resume keywords

Production Experience With GoAPI Design And Reusability PracticesUnderstanding Of Financial-Grade SystemsAbility To Own Complex Projects End To EndStrong Requirement-Gathering Skills

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

API FundamentalsUnit-Testable CodeSystem SpecificationsCollections OrchestrationDesign-First ApproachMaintainability PrinciplesBackend Systems DeliveryFinancial Systems ExperienceVirtual Account/vIBAN ConceptsMulti-Rail Payment Orchestration

Soft Skills

Collaborative Working StyleCalm And DecisiveHigh-OwnershipPragmatic Problem SolvingStakeholder Engagement

Tools & Technologies

RFCsDiagramsObservability ToolsIncident Response ToolsPayment Methods Such As STK

Industry Keywords

Financial SystemsAPI StandardsOperational ReadinessAuditabilityReliability

Tech Stack

Tools & technologies

Distributed SystemsGo

About the role

Key responsibilities & impact

Build infrastructure to provision vIBANs on demand
Design customer-facing APIs for collecting money through different payment strategies
Handle collections across the African continent, including payment methods such as STK
Own architecture and implementation decisions for the collections and treasury foundation
Lead RFCs, diagrams, API specifications, and system specifications
Partner with PMs and stakeholders to translate business intent into technical requirements
Design and build customer-facing and internal APIs
Build reliable infrastructure for vIBAN provisioning and collections orchestration
Drive API standards, testing strategy, code review quality, and maintainability
Break down complex work, sequence milestones, and manage delivery end to end
Make pragmatic trade-offs while protecting correctness in financial systems
Collaborate with engineers, follow chapter standards, conduct design reviews, and align stakeholders
Deliver a reliable, observable, maintainable collections and treasury foundation
Stabilise customer-facing APIs and orchestration paths with clear standards and strong developer experience

Requirements

What you’ll need

Production experience with Go
Ability to translate business intent into technical requirements and clean system boundaries
Understanding of financial-grade systems, including correctness, reliability, auditability, and operational readiness
Knowledge of maintainability principles such as single responsibility and separation of concerns
Understanding of API fundamentals, including consistency, versioning, backward compatibility, and developer experience
Strong requirement-gathering skills; able to challenge stakeholders and shape technically sound solutions
Design-first approach using diagrams, RFCs, hypotheses, and high-level system visualisation
Good API design and reusability practices
Ability to write unit-testable code and advocate for quality in code reviews
Ability to own complex projects end to end
Proven delivery of complex backend or distributed systems in production
Experience owning systems from design through build, shipping, operation, and iteration
Experience working closely with PMs and stakeholders to shape solutions
Experience making pragmatic trade-offs in startup environments
Calm, decisive, collaborative, high-ownership, pragmatic working style
Nice to have: financial systems experience, virtual account/vIBAN concepts, public APIs, observability, incident response, resilience patterns, region-specific payment methods such as STK, or multi-rail payment orchestration

Benefits

Comp & perks

35 days off: 27 days + 8 bank holidays if UK-based
Birthday leave: one bonus day off during the birthday month
Enhanced parental leave: 16 weeks of full pay for the primary caregiver and 4 weeks of full pay for the secondary caregiver after probation
Access to WeWork locations worldwide
$1,000 annual learning and development budget
Private medical insurance for London office employees
Life insurance with 3x salary cover for London office employees
Enhanced salary-sacrifice pension scheme via Penfold for UK employees
Hybrid working in the Canary Wharf office
Themed snacks and Friday lunch
Monthly social events
Free barista-style coffee