Senior Software Engineer – FinTech

Job not on LinkedIn

🔥 0 minutes ago

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 12%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Differential

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2013

💼 Consulting

☁️ SaaS

🤝 B2B

💰 $385k Seed Round - Differential: Digital Products Company on 2015-05

Consulting • SaaS • B2B

Differential is a digital-product studio and venture builder. It operates as a digital-product agency that builds custom software (Studio) and commercializes digital products (Ventures), working with startups, middle-market companies, and intrapreneurs at larger companies. The company emphasizes a team-based leadership structure, strong culture, and processes for onboarding, benefits, and side projects. Its stated mission includes making technology that connects people (including a platform to connect people with their local church), and its history shows evolution from a venture studio into a services and product-focused company.

📋 Description

• Own the technical design and implementation of complex FinTech and payment-related systems • Make architectural decisions and help establish engineering standards and patterns • Build and maintain APIs, integrations, services, and data systems • Design, code, review, debug, test, document, and ship software • Solve problems involving payments, financial data, transactions, reconciliation, and third-party integrations • Partner with Product and Engineering leadership to translate business requirements into technical solutions • Identify technical risks and improve reliability, scalability, security, and performance • Mentor and influence engineers through code reviews and technical guidance • Understand users and their problems and put user needs first • Document and maintain detailed payments system architecture • Identify payment-system edge cases requiring explicit handling • Maintain payment regression-detection and uptime-detection systems • Translate sketches, wireframes, and mockups into functioning web and mobile experiences • Deliver modern code for web and mobile applications • Collaborate with product and engineering team members • Maintain development workflow using team tooling • Communicate via Basecamp, Slack, and video calls • Incorporate feedback and execute with quality and speed in a fast-paced environment • Deliver tested, maintainable, and documented software using modern AI-powered techniques

🎯 Requirements

• 7+ years of professional software engineering experience • Strong experience building and scaling production payments software • Deep understanding of backend architecture, APIs, databases, and distributed systems • Experience working in FinTech, payments, banking, financial services, or other transaction-heavy systems • Strong understanding of payment flows, transaction processing, webhooks, reconciliation, or financial integrations • Experience integrating with third-party APIs and services such as payment processors, banks, or financial platforms • Strong experience with TypeScript/Node.js, GraphQL, PostgreSQL, and modern cloud infrastructure • Comfortable working across the stack, including React/React Native • Strong architectural instincts and ability to make pragmatic technical tradeoffs • Excellent debugging and problem-solving skills • Comfortable operating with a high degree of ownership and autonomy • Passion for the whole product process • Demonstrated ability to use an iterative process to maintain project momentum and continuously deliver valuable working software • Ability to leverage AI tools while observing and enforcing sound engineering principles • Candidates must be based in the United States • Must be available during standard business hours for internal and external meetings • Legally authorized to work in the United States • Must answer application questions and provide a CV or resume

🏖️ Benefits

• Flexible vacation • Remote work • Flexible working hours • Opportunity to work on meaningful projects • Free & flexible culture • Equal opportunity employment