Source Job

• Develop and maintain backend services using Golang.
• Implement features, bug fixes, and system improvements.
• Support AWS infrastructure provisioning and updates using Terraform.

Founded in 2016, Pismo provides a processing platform for banking, card issuing and financial market infrastructure, helping customers innovate and build banking and payment solutions. With over 500 employees across 10 countries, Pismo joined Visa in 2024.

• Write clean, well-tested code and grow through code reviews and pairing with senior engineers.
• Contribute to features and bug fixes while learning team patterns and best practices.
• Deliver quality work iteratively while learning the codebase and domain.

Anchorage Digital is a crypto platform that enables institutions to participate in digital assets through custody, staking, trading, governance, settlement, and the industry's leading security infrastructure. The company is funded by leading institutions including Andreessen Horowitz, GIC, Goldman Sachs, KKR, and Visa, with its Series D valuation over $3 billion and over 600 employees.

• Design, build, and own Elixir backend systems used across onboarding, fraud detection, compliance, and operations.
• Build and maintain data pipelines, integrations, and analytics infrastructure for rapidly growing team.
• Develop internal tools used daily by operations and compliance teams.

River is building the world’s most trusted financial institution to empower people to take ownership of their financial lives through Bitcoin. They are growing quickly and have raised more than $50 million from leading investors.

• Will be responsible for owning and delivering quarterly goals for your team, leading engineers to solve open-ended problems.
• Will support your peers and stakeholders in the product development lifecycle by collaborating with other teams.
• Will foster a culture of quality and ownership on your team by setting or improving code review and design standards.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Their engineering team builds reliable, performant, and scalable solutions that touch every part of the business.

• Design, build, and maintain backend services that power Monstro’s consumer experience
• Architect systems that scale gracefully as our user base grows
• Build systems with security as a first-class concern, including authentication, authorization, encryption, and audit logging

Monstro is an AI-native fintech platform reimagining how people and institutions manage money. They’re building a modern foundation for financial decision-making—combining intelligence, automation, and elegant design to help users make smarter choices with confidence.

• Build and own backend product capabilities for Stytch’s identity platform.
• Design, implement, and maintain scalable, reliable distributed services.
• Partner with Product and Engineering leadership to set direction.

Twilio is shaping the future of communications. With a dedication to remote-first work and a strong culture of connection and global inclusion, they deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide.

• Design, build, and maintain backend-heavy features in a large, long-lived codebase
• Own the technical health of a core product area, including performance, reliability, and scalability
• Partner with the CEO/CTO to align on architectural direction and translate ideas into shippable solutions

ChartHop is an AI-native HR & Organizational Intelligence platform, connecting your people and business data in one technology to deliver performance, engagement, HRIS, compensation, org planning and analytics. As a small, agile team, they value engineers who are curious, pragmatic, and eager to learn.

• Drive the definition and delivery of quarterly and long-term goals.
• Influence the design of backend systems across multiple teams.
• Partner with product, analytics, and design to define solutions.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Affirm is a fast-growing company who wants you to enable us to scale our products to 10x and beyond through building world-class systems which enable Affirm in its mission to provide honest financial products which improve lives.

• You will be responsible for setting technical strategy for your team on a year-long time scale, and help your team tie it together with critical, business-impacting projects.
• You take ownership of your team’s operations and availability by ensuring you have the right monitoring, triage rotations, playbooks, polcities, testing and alerting in place to support “keep the lights on” & on-call efforts.
• You will foster a culture of quality and ownership on your team by setting code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. They are a remote-first company, with employees working from various locations within their country of employment and offer competitive benefits anchored to their core value of putting people first.

• Leading one of Canva’s core revenue infrastructure teams as part of their broader monetisation platform
• Guiding the team through complex technical challenges, including scalable backend architecture, billing systems, and platform service decomposition
• Coaching and growing backend engineers while fostering a culture of pragmatic technical excellence

Canva is a design platform redefining how the world experiences design. They have campuses in Sydney and Melbourne and co-working spaces in Brisbane, Perth and Adelaide, trusting their employees to choose the balance that empowers them and their team to achieve their goals.

• Design and implement high-performance Golang microservices.
• Take ownership of components and features within backend systems.
• Collaborate closely with Product, Design, and Data teams.

Gametime helps people discover and access live experiences. With platforms supporting more than 60,000 events across the US and Canada, they are reimagining the event ticket industry. The company values collaboration, inclusivity, and the strength of diverse perspectives.

• Overseeing the core identity system that manages token and non-human authentication.
• Developing and maintaining secure system-to-system and 3rd party embedding solutions.
• Supporting the tech stack which includes .NET, C#, and backend-focussed distributed systems.

Xero is a platform ensuring customers have safe, low-friction access to products and services. They are a collaborative group of engineers who run mission-critical services and work closely together to provide internal product teams with the tools they need to integrate with their identity platform.

• Measure and optimize the performance, scalability, and uptime of backend services
• Conduct design and code reviews and push the bar for engineering rigor and standards
• Collaborate with product management, customer success, and customer support to deliver the best experience for our users

Branch empowers workers with financial freedom by helping companies accelerate payments and providing working Americans with accessible, free financial services. They value a diversity of opinions and working styles, fostering a shared belief in innovation and initiative.

• Develop, enhance, test, deploy, and maintain software and services following established SDLC practices.
• Perform critical code reviews and collaborate with peers on software solutions.
• Collaborate with Product Managers and Quality Engineers to deliver high-quality software user experiences.

VERSANT is a leading force in news, sports and entertainment - home to iconic and trusted brands that inspire, inform, and delight audiences. With a forward-looking vision, VERSANT empowers creativity, embraces change, and drives connection in an ever-evolving world.

• Lead the architecture and evolution of Flex’s risk decisioning platforms.
• Own and operate high-scale, 24/7 APIs and distributed systems that power real-time risk decisions across Flex.
• Provide technical leadership and guidance on system architecture and engineering best practices.

Flex is a growth-stage FinTech company based in NYC that aims to revolutionize the rent payment experience. They are expanding after securing investor support and cultivating a dedicated user base and focusing on an inclusive culture with employees across the US, Australia, Canada, and South America.

• Responsible for leading the technical direction and execution of complex, high-impact initiatives that span teams and systems.
• Architect and build scalable, high-availability systems that run 24/7 and support mission-critical workflows.
• Provide technical leadership across cross-functional teams, guiding architecture, trade-offs, and execution.

Apollo.io is the leading go-to-market solution for revenue teams. Founded in 2015, the company is valued at $1.6 billion and backed by top-tier investors, including Sequoia Capital, Bain Capital Ventures, and more.

• Participate in the development of critical and challenging services, seeking to build long-term and sustainable solutions.
• Design, develop, test, deploy, maintain and improve services focusing on performance, scalability, and resilience.
• Build Integration with 3rd party API and tools.

Wellhub is revolutionizing workplace wellness by connecting employees worldwide to partners for fitness, mindfulness, therapy, nutrition, and sleep via a single subscription. Headquartered in NYC with team members in 11 countries, Wellhub fosters a collaborative, wellbeing-focused culture where diverse perspectives are valued.

• Ownership over large domains and features related to card processing/issuing, and core ledgering of financial transactions
• Play a critical role in the development, design, and maintenance of Flex's platform and services.
• Architect well thought-out services and data models that ensure Flex's continued growth

Flex is building a finance super app for premium business owners, reimagining the financial workflow and services for entrepreneurs. They focus on mid-market businesses and are a fully remote company, with a team that values autonomy, clarity, and quality.

• Design and build scalable, reliable systems that power our core operations.
• Own end-to-end development of new features and services, from architecture through deployment and monitoring.
• Improve our developer workflows by strengthening CI/CD pipelines, reducing manual steps, and increasing test coverage.

GiveDirectly aims to reshape international giving by providing cash grants directly to the world’s poorest. Their global team of ~150, and country operations teams of ~650, together come from 21 different countries speaking 69 different languages and they have a candid, analytical, agile, and non-hierarchical culture.

• Take on varied roles within a small, growing team of engineers
• Tackle full stack development concerns in the frontend, backend and infrastructure
• Work closely with the team on architecture, design and code reviews, while continuing to spend the majority of their time doing hands-on development

We are seeking a software developer. We are a growing, highly innovative and collaborative startup environment.