Tide is hiring a Senior Python Engineer in Bulgaria to own and maintain backend services within a domain, collaborate with product and cross-functional teams, mentor engineers, and contribute to architecture and Communities of Practice. The role uses Python, Django/FastAPI/Flask, AWS (Lambda, Fargate, EKS, SQS, SNS, SES, S3), Postgres, BigQuery, Terraform and emphasizes microservices, REST APIs and event-driven patterns. Salary range: €51,000–€63,500 per year. Flexible/hybrid working supported.

Tide is hiring a Senior Mobile Engineer to work on Flutter/Dart applications within cross-functional agile teams. The role emphasizes building high-performance mobile UIs, testable code and automation (BDD), and working with a large modular Dart codebase and tools such as Melos, flutter_bloc, get_it, freezed, and CI/CD pipelines. The position offers a remote-first flexible model and a reported gross annual salary range of €60,000–€75,000.

Join Tide as a Senior Flutter Engineer working on mobile products for Tide’s business areas. Responsibilities include designing, building and maintaining high-performance Flutter apps, writing testable code and BDD tests, collaborating in cross-functional agile teams, and contributing to the Flutter Community of Practice. The role works with a large Dart codebase and a stack including flutter_bloc, get_it, injectable, auto_route, freezed, code generation tools, and observability tools (Firebase, DataDog, LaunchDarkly). Gross monthly salary range: 4850–9325 EUR.

Work on Tide’s event-driven microservice platform (200+ services). Design, build, run and scale backend services using Java 21, Spring Boot and JOOQ; expose and consume RESTful APIs; use SNS/SQS and Kafka for events; primary datastore PostgreSQL via Aurora on AWS. Deploy frequently via CI/CD (GitHub Actions), use ArgoCD, Docker, Terraform and EKS/Kubernetes; monitor with Coralogix. Collaborate with Product Owners and follow cloud-native, well-tested engineering practices.

Join Tide's engineering organisation to design, build, deploy and operate backend microservices in an event-driven architecture using Java 17, Spring Boot and JOOQ. The role involves working with AWS services (Aurora, SNS/SQS), Kafka, CI/CD (GitHub Actions), GitOps (ArgoCD), containerisation (Docker, EKS/Kubernetes) and monitoring (DataDog). Gross monthly salary range: 4850€–9325€.

Tide is hiring a Lead Backend Engineer in Bulgaria to design, build, run and scale microservices in an event-driven architecture. The role uses Java 17, Spring Boot, JOOQ, RESTful APIs, Kafka, SNS/SQS, PostgreSQL (Aurora) and AWS, and involves CI/CD (GitHub Actions), GitOps (ArgoCD), containerisation (Docker/EKS/Kubernetes) and observability with DataDog. The position emphasises ownership of services, deploying to production frequently, and collaborating with Product Owners on product and regulatory requirements. Salary range: €56,800–€71,000 per year.

Kraken's Pro team seeks a Senior Software Engineer (Frontend) with 6+ years building web applications using JavaScript/TypeScript and React. Responsibilities include designing, developing, and maintaining React applications (Next.js, WebSockets), influencing technical decisions, mentoring engineers, and working on API design, security, and performance. Experience in payments, crypto, or fintech is preferred; strong English communication skills required.

TeamSnap seeks a Staff Frontend Web Application Engineer to design and build high-performance TypeScript/React single-page applications, extend a design system, champion modern frontend practices, collaborate on APIs, and lead efforts around testing, CI/CD, performance, and developer tooling. The role requires ~8+ years of web-app experience and experience in a Staff/Tech-Lead capacity; the company hires only permanent US residents.

Senior technical leadership role responsible for architecting, developing, and scaling bidirectional integrations (APIs, event-driven middleware, client-side components) with ServiceNow, Atlassian Jira Service Management, and BMC Helix/Remedy; mentoring engineers; defining test strategies; and collaborating with customers and stakeholders. Requires 8+ years experience and expertise in Go/Python/Node.js, API security, data transformation/ETL, CI/CD, and distributed systems.

Ramp is hiring a Software Engineer to own and scale stablecoin-based payment and treasury systems, integrating with external partners and core products. The role expects production experience with stablecoin/blockchain payments, cloud platforms (AWS/GCP/Azure), IaC (Terraform), proficiency in languages like Python/Go/Java, and experience with security-sensitive systems (key management, wallet security). Location options include New York, NY or San Francisco, CA; relocation support to NYC or SF is offered.

Role to build core infrastructure and extensible toolchains for CUDA Quantum, working on inter-device communication, performant execution across multiple processors, and problems at the intersection of compilers, HPC, and quantum computing. Requires 5+ years of experience and domain-relevant technical skills (compilers, LLVM/MLIR, GPU/FPGA programming, distributed and multi-processor systems).

NVIDIA seeks a Senior Software Engineer to design and develop scalable, modular infrastructure for build, test, integration, and release of deep learning libraries (including cuDNN and FlashInfer). The role involves development across the stack, automation of CI/CD systems, maintaining tools like Kubernetes, Jenkins, Docker and contributing to upstream open-source tools. Requires a BS or equivalent and 5+ years' relevant experience with strong Python and C/C++ skills and experience with CI and build systems.

Join Stripe's Link team to build front-end experiences and backend infrastructure for a digital wallet and global payments. Responsibilities include designing products, debugging production issues, mentoring engineers, and collaborating across teams. Minimum requirement: 2+ years industry software engineering experience. Preferred experience with payment/financial systems and cloud technologies such as gRPC, GraphQL, Docker, Kubernetes, and AWS.

Work on core infrastructure and related platform teams at Stripe to design, build, test, and ship backend systems. Responsibilities include building internal and external customer-facing infrastructure, debugging production issues across the stack, and collaborating on roadmaps. Minimum requirement: 2+ years professional software development experience and hands-on experience with large-scale distributed systems.

SeatGeek is hiring a Senior Software Engineer to build and operate containerized, service-oriented systems (backend and frontend) for a high-traffic ticketing marketplace. The role involves shipping code frequently, solving performance and scaling challenges, and working across teams. Tech mentioned: Python (FastAPI), Go, C#, React+TypeScript, Swift, Kotlin, AWS, Kubernetes, Kafka, Flink, Airflow, Temporal, Postgres/Aurora, ElastiCache, OpenSearch, DynamoDB. Salary range: $144,000–$209,000 USD/year.

Work on Reddit's storage and caching infrastructure serving hundreds of millions of queries per second and hundreds of terabytes across thousands of machines. Responsibilities include designing and maintaining data storage systems (reads/writes), building tooling and automation for operations, collaborating with ML/AI/Search stakeholders, and mentoring other engineers. Requires 5+ years building internet-scale software and experience with languages such as Golang, Python, C++, or Java.

Reddit is hiring a mid-level backend engineer for the Ads organization to build and maintain microservices, APIs, distributed and real-time data systems that power ads.reddit.com and interactive ad experiences. Responsibilities include collaborating with product, platform and data teams, improving operational stability, delivering dashboards and building extensible components. Requires 3+ years of software development experience. Base salary range listed: $164,200–$229,900 USD per year.

Reddit seeks a mid-level backend engineer for its Ads organization (remote, Ontario, Canada listed). Responsibilities include building microservices and APIs, distributed and real-time data-intensive systems, and collaborating with product and platform teams. Tech stack includes Go, Python, Scala, Spark, Kafka, Postgres, BigQuery, Redis, Druid, Kubernetes, Argo and Docker. Requires 3+ years of software development experience.

Mid-level backend engineer role within Reddit's Ads organization working on microservices, APIs, distributed and real-time data systems for advertiser-facing products. Technologies listed include Go, Python, Scala, Spark, Thrift, Baseplate, Kafka, Postgres, BigQuery, Redis, Druid, Kubernetes, Argo, and Docker. Responsibilities include feature ownership, collaborating with product/platform/data teams, improving operational stability, and building extensible components.

Work on Reddit's first-party GraphQL API layer: design, build, and operate a Go-based federated GraphQL platform at massive scale. Responsibilities include improving functionality, scalability, observability, and developer tooling; tuning for latency and resilience; mentoring teammates; and sharing on-call duties. Requires 5+ years building large-scale distributed backend systems; Go preferred; experience with Kubernetes, CI/CD, and AWS/GCP.