Justt
PreSales Engineer - UK
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About the Role
Justt helps many of the world’s largest and most recognizable brands turn chargebacks from a constant headache into a managed, predictable part of doing business. Our AI-driven platform powers chargeback operations at scale, automating disputes end to end, recovering revenue that would otherwise be lost, and removing a major operational burden from finance, risk, and operations teams across multiple regions and verticals.
We’re a global company with teams across markets and disciplines, working closely with leading players in the payments ecosystem. Our culture is built on clear thinking, collaboration, and a strong sense of ownership. At Justt, you’ll partner with product, engineering, data, success, and go-to-market teams to build technology that sits at the core of modern payments, and has a direct, measurable impact on the bottom line for some of the biggest companies in the world.
Role Overview: Pre-Sale Solution Engineer
The Pre-Sale Solution Engineer is Justt’s technical co-pilot in the sales process: present from the first meaningful discovery call and fully accountable for all technical workstreams until the contract is signed. This is a pure pre-sale role—you do not own onboarding or post-launch support. Your focus is singular: help Sales win technically complex, high-value deals ($30K+ CARR/ARR in the US/AMER region).
You will work closely with Account Executives (AEs), engaging on strategic accounts and managing deals above the defined $30K+ CARR/ARR threshold. You bring equal measures of technical depth and commercial instinct: you know how to run a rigorous scoping session and how to read a buyer’s priorities.
This role sits within the Commercial Operations department and reports to the Director of Solutions.
Key Responsibilities
Technical Discovery & Scoping
- Lead technical discovery on qualified prospects, understanding their payment stack, PSPs (Payment Service Providers), data architecture, chargeback volume, and existing dispute processes.
- Define and scope the integration approach, including API connectivity, PSP evidence retrieval, data enrichment options, and any custom requirements.
- Identify gaps, risks, and blockers early and surface them clearly to Sales and internal stakeholders.
- Act as an internal relay between Sales, Product, and Engineering to resolve non-standard requirements during the sales cycle.
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Demo & Proof of Concept (POC)
- Deliver tailored technical demonstrations that align with the prospect’s stack, environment, and use case.
- Design and execute PoC sessions that prove Justt’s technical and commercial fit for the client.
- Handle technical objections proactively, turning blockers into compelling reasons to proceed.
Statement of Work (SOW)
- Translate scoping outputs into a precise, commercially sound SOW, including integration approach, timelines, data requirements, and acceptance criteria.
- Maintain the SOW as a living document through the sales cycle, updating it as requirements evolve.
- Handover a clean, complete SOW to the onboarding Solution Engineer (SE) team at contract signature.
Sales Partnership
- Operate as a co-owner of deal progression, alongside the Account Executive, rather than a support function.
- Know when to simplify or dive deep; prospects should leave every call confident, not confused.
- Represent Justt’s technical credibility across US enterprise and fintech environments where the bar is high.
- Maintain a clear Jira board for all pre-sale engagements, flagging capacity or prioritization needs early.
Requirements
Must-Have
- 5+ years in a Solutions Engineer, Pre-Sale Engineer, or Technical Account Executive role in B2B SaaS, fintech, or payments.
- Demonstrated track record selling to or supporting enterprise and mid-market clients in a technical capacity.
- Hands-on, self-sufficient experience with REST APIs, including:
- Reading documentation.
- Testing endpoints.
- Debugging payloads.
- Experience working directly with PSPs or payment gateways (e.g., Stripe, Adyen, Braintree, Checkout.com).
- Native or near-native English fluency, as you will lead technical conversations with senior stakeholders at enterprise prospects.
- Strong commercial instinct: recognizing that technical enablement is critical to deal closure.
- Ability to simplify complex technical concepts for non-technical audiences (e.g., merchants, finance teams, legal, C-suite).
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Strong Advantage
- Background in chargeback, dispute management, or payments fraud, familiar with industry terminology.
- Experience in fintech or payments infrastructure companies, including acquirers, PSPs, gateways, fraud/risk platforms.
- Experience authoring Statements of Work or technical scoping documents.
- Exposure to data enrichment pipelines or event-driven data flows.
- Experience selling into US enterprise retail, travel, or marketplace verticals.
What This Role Is Not
- Pre-sale only: This role excludes onboarding/implementation (hands off at contract signature).
- No post-launch support: Offered by the full-cycle SE team.
- Not a demooperator or slide builder: Focus is on technical authenticity, not slides.
- Not a participant in all discovery calls: Limits engagement to qualified, high-value deals.
Cross-Functional Interfaces
- Account Executives (AEs): Core partner; co-owns technical track for every deal.
- Director of Solutions: Manager; owns capacity, prioritization, and development.
- Onboarding SE Team: Handoff recipients for completed SOWs and scoping documents.
- Product & Engineering: Relay for feasibility questions and non-standard requirements.
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