Assist in developing and maintaining backend and frontend services.
Write clean, scalable code and participate in code reviews.
Collaborate with the engineering team to implement new features and resolve bugs.
Sezzle is a cutting-edge fintech company dedicated to financially empowering the next generation through its payment platform that provides interest-free installment plans. It drives sales for thousands of eCommerce merchants and fosters a dynamic, collaborative culture.
Collaborate across product, engineering, and design to build customer-centric solutions.
Contribute to raising engineering standards and improving customer experiences.
Tackle complex problems in fintech with resilience and a self-starter mindset.
Yendo uses AI to unlock vehicle equity, providing high-limit credit cards to those excluded from mainstream finance. In under 2 years, they've saved customers over $100 million in interest and are backed by leading VCs with a small, collaborative team.
Build the orchestration core — a unified layer on top of multiple AI providers with failover, retries, rate limiting, and the ability to onboard a new model in days rather than weeks.
Own the API contracts consumed by the Flutter client — stability, versioning, and clear error handling.
Keep the system reliable under paid-traffic spikes: metrics, tracing, and per-provider alerting.
Gismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets. With over 1 billion downloads and a team of over 400 individuals, Gismart fosters a culture of diversity, creativity, and innovation.
Design, build, and maintain secure, scalable backend services, databases, and APIs that support our products.
Lead technical direction, design discussions, and coordinate delivery across multiple systems.
Collaborate with Product, Operations, and other engineering teams to deliver reliable software.
Tucows Domains is the world's largest wholesale domain registrar, responsible for maintaining the health, neutrality, and openness of the domain name system (DNS). As part of Tucows, one of the world's largest Internet companies, they have over 1,000 employees from over 20 countries and embrace a people-first, remote-first culture.
Lead and grow a team of backend/platform engineers building systems that power core products.
Drive execution across planning, prioritization, and delivery with a focus on reliability and scalability.
Own the technical direction of backend services and APIs, ensuring systems are secure, performant, and maintainable.
SentiLink provides innovative identity and risk solutions for institutions and individuals. We are a rapidly growing company backed by top investors, with offices across the US and India, and a culture of collaboration and ownership.
Deliver complete features end-to-end, from technical breakdown to production, in a microservices platform handling tens of thousands of requests per minute.
Design solutions within existing architecture, owning the health of services through tests, observability, and production issue resolution.
Use AI coding tools daily, reviewing AI output for correctness, security, and performance, while mentoring juniors through pairing and code review.
Corwyn is a technology company building high-performance microservices platforms for esports and traditional sports. They operate in a fast-paced startup environment with autonomous product teams and minimal bureaucracy.
Design and develop scalable backend services (Python, FastAPI) powering the AI platform.
Build and optimize RAG pipelines, AI agent systems, and orchestration of LLM models in production.
Manage cloud infrastructure (AWS/Azure) including multi-tenant isolation and serverless functions.
A dynamic startup building a modern B2B AI platform powered by autonomous agents. The company focuses on eliminating tedious analytics for enterprise teams through flexible architecture and advanced workflows.
Design, build, and maintain scalable microservices on GCP using Node.js and Go.
Partner with client stakeholders to understand requirements, articulate strategies, and deliver impactful solutions.
Optimize and modernize existing backend systems for performance, reliability, and maintainability.
An enterprise-level client seeks a versatile Backend Engineer to drive backend microservices modernization on Google Cloud Platform. The role is client-facing consulting, emphasizing scalable solutions.
Design and build scalable backend services and APIs for LaunchDarkly's Experimentation product.
Own backend components from discovery through monitoring and continuous improvement.
Collaborate with cross-functional teams to translate customer needs into reliable technical solutions.
LaunchDarkly is a feature management platform that helps developers release software faster and safer. The company fosters a collaborative, respectful, and inclusive culture with a focus on team empowerment.
Develop resilient, high-scale, low-latency distributed microservices running on hundreds of cloud nodes.
Solve complex scaling challenges for ML inference on vast geospatial data.
Collaborate with ML and GIS engineers to maintain cutting-edge GIS software products.
Blackshark.ai provides a scalable AI platform for geospatial insights, enabling custom model training on global features with real-time accuracy. Founded in 2020, they have secured $35 million in series A funding from top US and European investors and work with customers in intelligence, government, and enterprise sectors.
Work directly with customers to understand technical requirements and build production solutions.
Develop integrations, APIs, and internal tooling to accelerate platform adoption.
Own projects from technical discovery through deployment and iteration.
A fast-growing technology company building advanced AI-powered infrastructure and products for enterprise customers. The company operates in a fast-paced, ambiguous environment and values high ownership and customer focus.
Design and build the systems that define plans, pricing, entitlements, and limits.
Decompose billing from the monolith into correct, testable, and independently deployable services.
Own correctness end to end including usage metering, reconciliation, and customer-facing data.
LaunchDarkly provides a platform that helps developers safely deliver and control software features. The company is building a team that is humble, open, collaborative, respectful, and kind.
Design and build backend services that power core business workflows.
Own projects end-to-end from early design through production and iteration.
Make thoughtful tradeoffs between speed, scalability, and maintainability.
Short Story is an award-winning, technology-powered retailer dedicated to petite women 5'4" and under. It is a fast-growing startup backed by leading investors, with a culture that thrives on data insights, exceptional commitment to fit, and urgency.
Design backend systems and APIs (Python preferred) that run real-time, business-critical accounting logic.
Ship features end to end - architecture, CI/CD, testing, monitoring, and beyond.
Integrate third-party tools and external systems, proactively managing edge cases and risk.
DualEntry is building the OS for finance, an AI-native ERP that automates accounting from data entry to close. They have raised over $100M from top venture firms and serve customers from startups to public companies, hiring high-agency outliers who have achieved difficult things.
Implement and maintain network delivery solutions for MCG Data Science SDKs, focusing on deployment, security, auth, and observability.
Work closely with teammates to understand integration contracts, implement to spec, and surface early blockers.
Provide expert code reviews and technical mentorship, and design solutions on modern infrastructure.
MCG leads the healthcare community in delivering patient-focused care through evidence-based content and innovative products. The company, backed by Hearst with over 100 years of history, fosters a culture of personal and professional growth with a diverse and inclusive team.
Build AI-based features into a platform serving millions of users, working directly with the platform architect.
Stand up core AI infrastructure, including LLM serving, retrieval-augmented generation, and evaluation systems.
Shape engineering practices and own services end to end, from schema to deploy to on-call.
TMTG is a social media company dedicated to providing users an engaging and censorship-free experience. It is the fastest-growing social media platform in the country, championing free speech and serving millions of users in a fast-paced, rapidly growing environment.
Drive backend development for AI workflows using Python and FastAPI as part of a collaborative team.
Productionize LLM integrations with systems for Bedrock usage, quotas, retries, and cost controls.
Build for scale by optimizing async job orchestration, performance, and data-layer for petabyte-scale enterprise data.
Smarsh empowers organizations to manage risk and uncover intelligence in digital communications. With over 6500 clients in regulated industries and consistent recognition from Gartner and Forrester, Smarsh has been listed on the Inc. 5000 as one of America's fastest-growing companies since 2008.
Design and build scalable systems for AI training data and evaluation.
Own projects end-to-end, from technical design to deployment.
Build human-in-the-loop platforms and annotator workflows.
An early-stage AI infrastructure company building training data and evaluation systems for frontier AI labs. A post-Series A organization with a small engineering team, offering significant individual ownership and influence.
Design and maintain backend services using Python/FastAPI/TypeScript/Express, including secure REST APIs, SSE streams, and WebSocket-based features.
Own PostgreSQL schemas, migrations, transactions, and query performance, and integrate external data providers with authentication, pagination, and rate limits.
Build unit, contract, and database-backed integration tests, and instrument services with structured logging to diagnose production failures.
Ruya AI is a venture-backed defense-tech company building AI-native intelligent software for sovereign institutions operating in mission-critical environments. Headquartered in Massachusetts with offices across the U.S., Europe, and the Middle East, we are expanding our engineering team with people who demonstrate strong ownership and sound judgment.
Improve accuracy on core extractions by working with experts to identify failure modes and implement fixes.
Own our evals by designing and maintaining test suites to prevent regressions and ensure system reliability.
Improve our shared agent harness for tooling, orchestration, and design for human review.
Luminary is an AI-native platform that transforms complex estate planning documents into structured data to power wealth transfer services for high net worth clients. With over 1,000 customers including top wealth managers and law firms, the company maintains a small, senior engineering team with a culture of ownership and rapid shipping.