Source Job

• Write reliable, secure, and scalable code for Lithic's product platform with minimal tech debt.
• Improve system reliability and participate in team on-call rotation.
• Own projects from planning to launch, including API key management, audit logging, and search.

Lithic is a modern card issuing and processing platform for financial companies to build the future of payments. They are a team of 170+ across 26 states and 7 countries, with a remote-first culture.

• Design, build, and deploy robust backend services, data pipelines, and highly available APIs, owning the full path data takes through the platform.
• Prototype quickly to test hypotheses, then harden validated prototypes for enterprise-scale adoption.
• Set technical direction, mentor other engineers, and drive initiatives that span multiple services, pipelines, and teams.

Carbon Direct is a purpose-driven carbon management firm that helps organizations reduce, remove, and utilize their emissions using carbon science. They are a global team spread across 4 countries and 10+ U.S. states, with a culture that values diversity and remote-friendly work.

• Design and build scalable backend systems, APIs, and data models that power communications, experimentation, and personalization.
• Partner with Product, Data Science, and Experience teams to define and execute strategies for customer acquisition and engagement.
• Mentor and support junior engineers, contributing to a culture of learning, collaboration, and technical excellence.

Affirm is a financial technology company that provides point-of-sale installment loans to consumers, allowing them to pay over time with no hidden fees. The company is remote-first and values transparency, care, and flexibility, with a strong emphasis on employee well-being and professional growth.

• Help define and drive the ML engineering strategy for Discovery Mode and related royalty programs.
• Design, build, evaluate, ship, and refine production ML systems through hands-on development.
• Provide technical leadership across complex ML initiatives and collaborate with cross-functional teams.

Spotify is the world's most popular audio streaming subscription service, focused on unlocking human creativity. With a strong emphasis on inclusivity and innovation, the company employs thousands worldwide and values diverse perspectives.

• Design and scale backend systems powering consumer-facing products
• Build and refine APIs that deliver instant, seamless experiences
• Collaborate with product, credit/finance, compliance, support, and analytics teams

Tilt is a fintech company using mobile-first products and machine learning-powered credit models to assess financial potential beyond traditional credit scores. With millions of customers worldwide and a remote-first team across 14 countries, Tilt fosters a collaborative, inclusive culture that values impact and mutual respect.

• Own technical design and execution of major products and engineering systems, from concept to production.
• Design and evolve scalable, reliable systems across backend, frontend, APIs, databases, and cloud infrastructure.
• Mentor engineers, raise engineering standards, and solve complex production challenges across global teams.

This company builds technology serving millions of users across Southeast Asia. It operates a fast-moving, globally distributed engineering environment with a focus on scalability and collaboration.

• Lead architecture and development of scalable backend systems for guest and host experiences.
• Apply advanced AI technologies to products and engineering workflows.
• Mentor engineers and drive technical direction across major initiatives.

The company builds communication and connectivity platforms for millions of users globally. It is a high-growth technology environment that values inclusion, collaboration, and diverse perspectives.

• Partner with cross-functional teams to design and deliver scalable backend systems for major product initiatives.
• Own the full software lifecycle from technical design to rollout, using A/B experiments and data analysis to drive decisions.
• Build and maintain high-performance APIs and distributed services using modern languages and tools.

Reddit is a community of communities, built on shared interests, passion, and trust. It is home to the most open and authentic conversations on the internet, with 100,000+ active communities and approximately 130 million daily active unique visitors.

• Own and improve the machine learning models and systems that power the Home feed, including the Shortcuts experience.
• Design, build, and ship personalized recommendations that serve millions of Spotify listeners globally.
• Train, fine-tune, evaluate, and optimize large language models using techniques such as SFT, distillation, and LoRA.

Spotify is a leading audio streaming platform that connects listeners with music and podcasts. The company has thousands of employees worldwide and fosters a culture of inclusivity, creativity, and forward-thinking.

• Design, develop, and launch scalable backend systems to support Affirm's international expansion.
• Collaborate with product, design, and analytics to define technical plans and deliver high-quality features.
• Foster a culture of quality through code reviews, mentoring, and proactive problem-solving.

Affirm is reinventing credit to make it more honest and friendly, offering buy now pay later without hidden fees. The company is a global leader in fintch, fostering a culture of innovation, collaboration, and people-first values.

• Owning technical design and execution for major products, systems and engineering initiatives.
• Designing scalable, reliable systems across backend, frontend, APIs, databases and infrastructure.
• Building alongside the team through coding, prototyping, code reviews, debugging and production problem-solving.

BJAK builds technology products used by millions of users across Southeast Asia. The company is a distributed, fast-moving international team that values technical leadership and hands-on engineering.

• Shape the data ecosystem powering advertising measurement, optimization, and decision-making at significant scale.
• Lead technical direction across conversion, attribution, identity, and audience onboarding.
• Collaborate with senior engineers to establish scalable approaches and mentor experienced engineers.

Our partner is an ad-tech company focused on building measurement and optimization systems for advertising at scale. They foster a collaborative, remote-first culture with comprehensive benefits and a focus on technical excellence.

• Own technical design and execution for major products, systems, and engineering initiatives.
• Build scalable, reliable systems across backend, frontend, APIs, databases, and infrastructure.
• Drive architecture decisions and turn ambiguous product problems into clear technical solutions.

KIRA built the first mobile-first insurance platform in 2019 and is now the leading insurance platform in Southeast Asia. They have teams across the world with over 20 nationalities, fostering a culture of innovation and passion.

• Design and build backend services in Rust for high-volume financial transactions with strong guarantees.
• Own features end-to-end, from spec to production, and set technical direction for your area.
• Integrate with external partners and improve engineering quality across observability and security.

MoonPay builds the operating system for value movement, enabling enterprises to fund, tokenize, trade, and spend digital assets. With top rankings in Fortune's Crypto 100 and Forbes' Best Startup Employers, they foster a high-velocity, high-accountability culture.

• Design and scale backend systems, APIs, and services for an open-source platform.
• Build world-class developer interfaces including APIs, SDKs, UIs, and a runtime that delights developers.
• Collaborate directly with customers to solve integration challenges and shape the product roadmap.

Nango is a developer infrastructure company and the leading provider of API access for agents and apps. It is a YC-backed, multi-million ARR company with a team of 14 from AWS, Snyk, GitHub, and others, serving over 400 paying customers.

• Design and build distributed data systems handling large-scale ingestion and processing.
• Drive architectural decisions and take end-to-end ownership of critical components.
• Collaborate with product teams to translate ambiguous requirements into robust technical solutions.

Our partner builds a large-scale, multi-chain data platform that ingests, models, and delivers blockchain data to users and developers. They are a remote-first, distributed team with a strong engineering culture focused on ownership and collaboration.

• Architect the high-throughput, distributed platform serving as the single source of truth for all patient data during hyper-scale growth.
• Tackle complex distributed systems challenges where performance and data integrity directly impact real human lives seeking mental healthcare.
• Drive zero-to-one architectural decisions while mentoring engineers and partnering with cross-functional teams to shape product vision.

Rula is a mental health company dedicated to providing quality, evidence-based care to empower individuals. They are a remote-first team experiencing hyper-scale growth, fostering a culture of inclusion and well-being.

• Lead cross-cutting initiatives and drive modular backend architecture to improve scalability and developer velocity.
• Set standards for APIs, testing, security, and operability while mentoring engineers and shaping technical direction.
• Own production systems, participate in on-call, and lead AI-assisted engineering workflows with quality and safety guardrails.

GitLab is the intelligent orchestration platform for DevSecOps, helping organizations increase developer productivity and improve operational efficiency. With over 50 million users and trust from more than 50% of the Fortune 100, GitLab fosters a high-performance culture driven by values, continuous knowledge exchange, and AI integration.

• You will lead the design and architecture of scalable backend solutions for subscription and membership platforms, directly impacting customer retention and engagement.
• You will own core subscription systems including billing, lifecycle management, and cross-functional initiatives with engineering teams across commerce, pharmacy, and fulfillment.
• You will mentor on best practices, drive technical decisions for security and performance, and ensure platform capabilities support an intuitive customer experience.

Hims & Hers is a leading health and wellness platform that provides personalized care from diagnosis to delivery. As a public company on the NYSE, it fosters a talent-first culture with a flexible, remote-friendly approach.

• Lead two engineering teams focused on secure builds and supply-chain security, owning delivery and team health.
• Guide technical direction with staff engineers and balance product delivery with reliability investments.
• Establish clear interfaces and operational ownership across teams while coaching engineers and fostering growth.

Our partner is looking for a Manager, Engineering, Secure Build and SCS Services. They are a remote-first company with offices in Seattle and Paris, offering a collaborative environment with globally distributed engineering teams.