Solution Engineer-Banxa

OSL; Singapore; On-site; SGD 120,000 - 150,000; Full time

Job summary

OSL in Singapore seeks a hands-on Solutions Engineer to own partner integrations from pre-sales through sandbox, go-live and into production across our EU and US partner base.

You will guide partner engineers through API, SDK, and widget surfaces, triage production issues, and ship documentation and sample code to improve the integration experience for merchants.

Qualifications

• Bachelor’s degree or equivalent practical experience.
• 5+ years in solutions/ integration engineering with partner exposure.
• Hands-on fluency with REST APIs, webhooks, and SDK integration patterns.
• Development ability in TypeScript or Python to scaffold demos.
• Frontend experience with TypeScript and React or Vue.
• Experience in payments/fintech or crypto infrastructure is a plus.
• Excellent written and verbal communication; able to lead integration calls.
• Ability to run multiple partner integrations concurrently.
• Familiarity with regulatory onboarding, KYC, and MiCA is a plus.
• Active use of AI tools in engineering workflows; Mandarin is a plus.

Responsibilities

• Own partner integration end-to-end from sandbox to production.
• Scope integrations with API, SDK, and widget paths.
• Guide partner engineers through integrations and demos.
• Triaging API errors, webhook failures, and widget behavior.
• Improve integration surfaces with better docs, samples, and guides.
• Provide product feedback based on partner friction.
• Coordinate onboarding and go-live with cross-functional teams.
• Promote AI-assisted development in daily workflows.

Skills

REST APIs

Webhooks

SDK integration

TypeScript

Python

React

Vue

AI in engineering

Communication

Agile

Education

Bachelor's degree in Computer Science, Software Engineering, or equivalent

Job description

We are seeking a hands‑on, partner‑minded and technically versatile Solutions Engineer to own the technical side of partner integrations, from pre‑sales solutioning through sandbox, go‑live, and into production, across our EU and US partner base.

You’ll be the engineering face our partners and integrators see. You’ll scope integrations alongside the commercial team, guide partner engineers through our API, SDK, and widget surfaces, triage production issues at the partner boundary, and carry what you learn back into the platform, sometimes as structured feedback, and sometimes by shipping the improvement yourself, whether that’s better documentation, cleaner sample code, or refinements to the surfaces integrators and merchants touch every day.

This is a role for someone who sits comfortably on both sides of the table, technical enough to build a working demo and debug a webhook failure, communicative enough to walk a partner’s CTO through an integration plan and have them leave confident.

Key Responsibilities

Partner Integration Ownership: Own each partner’s technical integration end to end, translating their requirements into integration plans across our API, SDK, and widget paths, and carrying them from sandbox testing through launch and into production.

Pre‑sales Technical Solutioning: Partner with the commercial team on technical discovery, understanding a prospective partner’s systems, flows, and constraints, and recommending the best‑fit integration approach before contracts are signed. You’ll build working demos, not slide decks.

Integration Support & Triage: Own first‑line triage for partner integration issues, diagnosing API errors, webhook failures, and widget behaviour, reproducing issues yourself, and coordinating resolution with the payments, identity, and experience squads.

Integration Surface Improvements: Ship improvements to the surfaces integrators and merchants rely on such as documentation, sample apps, integration guides, and the merchant dashboard, with AI tools extending how much of this you can carry yourself rather than queueing behind product squads.

Product Feedback Loop: Convert recurring partner friction into structured feedback for product and engineering; you’ll often be the first to see where the platform surface confuses integrators, and the best placed to make the case for fixing it.

Onboarding & Go‑live Coordination: Coordinate the technical dimension of partner onboarding alongside compliance, operations, and the commercial team, keeping integrations moving while the non‑technical workstreams run in parallel.

AI‑Assisted Engineering: Use AI tools actively in your day to day work, from generating demo code and drafting integration guides to debugging partner issues and shipping improvements to integration‑facing surfaces. Push the team to adopt and refine these workflows as a core part of how we ship.

Documentation & Knowledge Sharing: Maintain clear documentation for integration patterns, partner‑specific configurations, and known issues, contributing to a shared knowledge base the team and adjacent squads can rely on.

Qualifications

Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience.

5+ years of experience in solutions engineering, integration engineering, or software engineering with meaningful partner‑facing exposure, ideally in payments, fintech, or crypto infrastructure.

Hands‑on fluency with REST APIs, webhooks, and SDK integration patterns, comfortable reading code, building working demos, and debugging issues that sit on the partner’s side of the boundary as often as ours.

Practical development ability in at least one language, such as TypeScript or Python, enough to scaffold a demo integration, reproduce a partner’s issue, and speak credibly with their engineers.

Working familiarity with modern web frontend development, including TypeScript and frameworks such as React or Vue, enough to ship meaningful improvements to documentation sites, sample apps, and merchant‑facing surfaces, particularly with AI assistance in the loop. You won’t own these codebases, but you should be able to move them forward.

Payments or on/off‑ramp domain exposure, including the shape of fiat rails, settlement flows, and the KYC and onboarding steps that sit inside a partner integration. Exposure to identity verification flows is a plus.

Strong written and verbal communication, able to translate technical detail clearly in both directions, to partner engineers and to non‑technical commercial stakeholders, and comfortable leading integration calls with senior partner‑side audiences.

Ability to run multiple partner integrations concurrently, keeping each moving without dropping threads, and knowing when to elevate versus when to dig in yourself.

Awareness of regulatory operating context is a plus. Our partners integrate across regulated markets, so familiarity with the compliance dimension of onboarding, KYC gating, and jurisdictional availability, including frameworks such as MiCA, will help you ramp faster.

Active use of AI tools in engineering workflows, this is a baseline expectation, not a nice to have. We expect you to bring practical experience with AI assisted development and a point of view on where it adds the most leverage.

Mandarin proficiency is a plus, given the team’s cross‑regional collaboration rhythm.

Partner‑first instincts with strong engineering culture, troubleshooting instincts, and the composure to be the calm technical voice when a partner integration is under pressure.

Agile mindset with prior experience working in iterative, collaborative delivery teams.