Work on the Elasticsearch Inference API and plugin framework to integrate internal and external inference providers (including Elastic Inference Service and third parties). Responsibilities include protocol design, streaming (SSE), async execution, billing integration, rate limiting, reviewing contributions, participating in on-call rotation, and writing unit and integration tests. Requires 5+ years of production Java experience. Typical salary range: €55,800–€88,300 EUR/year.

Join Elastic's Elasticsearch Inference API team to develop and maintain the plugin framework and REST API that integrate Elasticsearch with internal and external inference providers (including EIS, Anthropic, OpenAI, Cohere, Google). Work includes protocol design, streaming (SSE), async execution, billing integration, rate limiting, testing (ESTestCase, YAML REST integration, rolling-upgrade), code reviews, and participating in on-call rotation. Requires 5+ years production Java experience and strong knowledge of core Java, concurrency, and API design.

Join the Elasticsearch inference team to maintain and develop the Inference API and plugin framework that integrates Elasticsearch with internal and external ML providers. Responsibilities include building provider integrations, protocol and API work (streaming/SSE), rate limiting, billing integration, writing tests (ESTestCase, YAML REST integration, rolling-upgrade), reviewing contributions, and participating in on-call rotations. Requires 5+ years production Java experience and familiarity with concurrency, API design, and Java build tools.

Sparksoft seeks a Junior Full Stack Developer to design, develop, test, and deploy web applications using Angular and TypeScript, build microservices in Java, and use AWS native/serverless services and containers. Responsibilities include participating in Agile sprints, code reviews, performance optimization, troubleshooting across environments, and collaborating with cross-functional teams. Required: ~2–3 years application development and AWS serverless experience, bachelor's degree in a technical field.

Seeking a mid-level Full Stack Developer with 5+ years of application development experience. Responsibilities include implementing solutions using AWS native and serverless services, developing web applications with Angular and TypeScript, building microservices in Java, API integration, database management (DynamoDB, Aurora), ensuring code quality and performance, participating in sprint planning and code reviews, and collaborating with cross-functional teams. Preferred experience includes Drupal-related front-end database work, F5/NGINX, and familiarity with Generative AI/LLM integrations.

Seeking a Java Software Engineer with 4–5 years' experience. Required: Java 8+, Spring Boot, microservices and API development, PostgreSQL, Git, Jira, basic Linux scripting, and familiarity with CI/CD pipelines. Nice-to-have: B2C application experience and some frontend exposure. Position is remote/full-time, candidates should be able to join within immediate to 30 days; deployment to a client in Malaysia noted. Indian candidates preferred.

Remote Senior Backend Engineer (based in Poland) responsible for designing and shipping moderate-to-complex backend features, defining backend standards, improving system reliability and performance, mentoring engineers, participating in incident response, and integrating agentic AI into production engineering workflows. Role focuses on application-level rate limiting framework and collaboration across product, frontend, infrastructure, data, and security teams. Poland base salary range: 272,000 PLN – 408,000 PLN per year.

Senior engineering role owning technical direction and architecture for high-scale, business-critical backend services (TaskRouter) on AWS. Requires 8+ years producing production backend code, strong distributed systems and database experience (MySQL/Postgres/DynamoDB), familiarity with event streaming (Kafka/Pulsar), containerization (Docker/Kubernetes), observability tools, and operating in distributed teams.

NVIDIA is hiring a Backend Compiler Engineer to understand, modify, and improve a proprietary GPU compiler backend written in C++. The role focuses on compiler code generation and optimizations for Graphics (OpenGL, Vulkan, DirectX) and Compute (CUDA, PTX, OpenCL) targets; requires 3+ years of compiler code generation experience. Locations listed in the US with remote options; base salary range $152,000–$241,500 USD per year.

Seeking a Senior Full Stack Developer to design, develop, and maintain enterprise web applications and backend microservices using Java (11/17+), Spring, and Angular (v14+). Role requires strong experience with REST APIs, TypeScript, RxJS, SQL databases (PostgreSQL/MySQL), testing frameworks, CI/CD, and working in Agile teams. Remote candidates must be located in Costa Rica or Peru and have upper-intermediate to advanced English.

Short-term (two-month, remote) engagement for a senior Python engineer to design, build, and maintain backend microservices and REST APIs, manage AWS infrastructure (ECS, S3, CodePipeline, CodeBuild), contribute to frontend tasks as needed (JavaScript/React), and rapidly deliver within an existing production codebase alongside a distributed engineering team.

Seeking a Senior Backend Engineer with 5+ years' experience to design and operate production backend services (Java and Go), lead an authentication/identity service migration off a third-party CMS, define APIs (REST/GraphQL/gRPC), and ensure reliability and observability on AWS and Google Cloud. Role is 100% remote and based in Latin America.

MailerLite seeks a Technical Lead for the Audience Growth team to lead engineers, shape technical direction, and contribute code. The team owns signup forms, landing pages and website builders, subscriber imports, preference centers, opt-in flows and integrations. Requirements include 6+ years building production web applications, strong PHP/Laravel, modern JavaScript (Vue 3), REST API and OAuth experience, PostgreSQL and background jobs. Remote-first role with a reported yearly salary range of €70,000–€90,000. Based in Lithuania / EMEA.

Role requires 8+ years building backend systems, services or libraries. Work includes developing the MCP server and infrastructure (primarily in Go), portable agent skills format and tooling, integrations with third‑party AI ecosystems, and contributions to the Elastic CLI. Experience with LLMs/agents, HTTP/REST APIs, Go (and ideally other languages such as Rust), and a focus on developer experience and product thinking are required.

Lead engineering work across agents, automations and skills for the Context Engine: ship TypeScript/Python production code, design telemetry and evaluation strategies, iterate on prompts/skills/memory safely, and partner with data scientists and product to measure and improve agent behavior.

Sparksoft seeks a mid-level Scala developer with 5+ years of software development experience to develop and maintain Scala-based RESTful services, collaborate in Agile teams, perform unit testing and troubleshooting, and support AWS-based cloud-native deployments. Candidates must be able to obtain and maintain a Public Trust clearance and have lived in the United States 3 of the past 5 years. Role is remote with hybrid work if local to Maryland.

Join the Streams Backend team to design and implement features for Logstash and backend services, contribute to the OpenTelemetry Collector, solve distributed systems problems at scale, maintain and improve existing code, participate in PR reviews and an on-call rotation. Role is remote-first and the base salary range is €61,100–€96,600 per year.

Work on Elastic's Streams backend and Logstash: design and implement features in Java and JRuby, build and operate core backend services in Golang, contribute to the OpenTelemetry Collector, maintain and improve existing code, solve distributed-systems problems at scale, participate in on-call rotation, and collaborate with a distributed team. Salary range: 307,800–486,900 PLN (base).

Join the Streams Backend team to design, build and operate core backend services and Logstash features. Work includes developing in Java, Golang and JRuby, contributing to the OpenTelemetry Collector, solving distributed systems problems at scale, maintaining code and tests, participating in on-call rotations, and engaging with public GitHub repositories and community forums.

Lead design, build, and scaling of backend services for transaction processing, settlement, and asset transfers across fiat, crypto, and internal ledgers for institutional clients. Responsibilities include driving technical direction, code quality, performance and scalability improvements, production troubleshooting, and mentoring engineers. Requires 5+ years backend experience and production experience with Go (or similar), relational datastores (e.g., Postgres), and message-based architectures (e.g., Kafka). Remote (USA) role with quarterly in-person sessions; posted base salary range $207,955–$218,900 USD per year.