Remote B2B freelance role supporting development and maintenance of an enterprise SaaS platform. Requires 3–4 years backend experience with Java and Kotlin, familiarity with Spring Boot, REST APIs, SQL, and ERP integrations; work hours ~14:30–22:30 CET. Professional English and ability to operate independently in distributed teams are required.

Lead technical design and delivery for a greenfield Continuous Delivery (CD) platform at GitLab, focusing on backend services in Go, distributed systems, durable orchestration, and AI-native governance. Responsibilities include decomposing architecture into deliverable work, shipping high-scale production systems, participating in on-call rotations, mentoring engineers, and collaborating cross-functionally. Experience with Docker, Kubernetes, GitOps, deployment automation, and progressive delivery patterns is required.

Join GitLab's CD team to design and implement a next-generation Continuous Deployment platform in Go. The role involves end-to-end ownership of features, building scalable distributed systems with durable orchestration and state awareness, working with Kubernetes/Docker, contributing to architecture on a greenfield codebase, and collaborating across product, UX, and adjacent engineering teams in a fully remote, async-first environment.

Remote (USA) Staff Software Engineer on the Payment Rails team responsible for technical strategy, architecture, and roadmap for partner integrations and routing. Role focuses on designing and scaling distributed, fault-tolerant payment systems with clear SLOs, driving reliability and incident response, applying generative AI to engineering workflows, and mentoring engineers. Requires 8+ years of software engineering experience building payment or high-volume transactional systems. Listed base salary range: $218,025–$256,500 USD per year.

Customer.io seeks a Senior Software Engineer (Backend) to design, build, and evolve distributed systems in Go powering large-scale messaging. Requires 7+ years building scalable systems (Go or similar), experience with cloud-native environments (AWS/GCP), familiarity with relational databases (MySQL), and operating production systems with observability tooling. Starting salary range: $150,000–$200,000 USD.

Customer.io seeks a Senior Software Engineer (Backend) to design, build, and operate scalable distributed systems in Go. Requires 7+ years building scalable systems (Go or similar), experience with cloud-native environments (AWS/GCP), familiarity with MySQL, and observability/operating production systems. Role emphasizes ownership, reliability, performance, system design, and collaboration; compensation range $150,000–$200,000 USD/year.

Pindrop seeks a Senior Software Engineer with 5+ years' experience to design, develop, test, deploy, and monitor scalable cloud-based services and APIs (Go/Python). Responsibilities include working with AWS and GCP services (Kinesis, DynamoDB, S3), containerization and orchestration (Docker, Kubernetes), CI/CD, observability (Prometheus, Grafana, Google Logging/Cloud Trace), and participating in on-call rotations.

Remote Senior Full Stack Engineer role at Customer.io focused on designing, building, and shipping core product experiences. Responsibilities include building fullstack features in Go, React, and Ember; working with APIs and relational databases; writing testable, performant code; using AI agents to assist code changes; and sharing knowledge through mentorship and public content. Requires 7+ years of experience; compensation listed as $150,000–$200,000 USD per year.

Customer.io is hiring a Senior Full Stack Engineer (EMEA remote) to design, build, and ship core product experiences. Requires 7+ years building and scaling backend services and product-facing features, fluency with TypeScript and React (or similar), and experience with a statically typed backend language such as Go. Responsibilities include fullstack feature development, system scalability, using AI agents for code changes, and contributing to product and technical direction. Salary range: $150,000–$200,000 USD/year.

The role owns backend data and infrastructure for mission-critical shared services, designing resilient, scalable APIs and schemas, leveraging Go, GraphQL, Node, SQL, and AWS (Lambda, DynamoDB, SQS, RDS). Responsibilities include system design, production triage, CI/CD, mentoring, and partnering with product and security to meet compliance and availability goals. Requires 5+ years of professional software development experience.

SmithRx is hiring a Staff Backend Software Engineer (US - Remote) to design, build, test, and maintain backend services for its drug access platform. The role emphasizes Go, GraphQL, Node, SQL/PostgreSQL, AWS (Lambda, DynamoDB, SQS, RDS), CI/CD, system design, scalability, and mentoring; requires 8+ years of professional software development experience.

Datadog is hiring a Senior Software Engineer to build LLM-based agents and AI-assisted developer tools: design and iterate on prompts and evals, build agent tooling for working with code, productionize systems, and integrate with Datadog products (IDE extensions, instrumentation). Requires 5+ years backend experience (Go/Java/Python) and prior experience shipping software using LLMs or related ML/large-scale systems work. Role is hybrid in New York.

Join Datadog’s APM Experiences team to design, prototype, evaluate, and productionize LLM/agentic workflows that analyze traces, metrics, logs, and telemetry to generate diagnoses, recommendations, and automated monitors/SLOs. The role requires shipping backend/real-time ML systems, building robust agent systems and retrieval strategies, integrating with Datadog platform surfaces, and collaborating with PM and Design while maintaining high reliability and performance for production services.

Remote (US/Canada) Senior Developer on the Growth team responsible for building net-new self-serve experiences, evolving systems and integrations for product growth, shaping the experimentation platform (feature flags, instrumentation, reporting), designing and implementing experiments to drive activation/engagement/expansion, and partnering with product/design/data. Requires 5+ years professional SaaS development experience and strong backend (Go/Node/Ruby/Python) and React/TypeScript skills. Role includes mentoring, balancing rapid iteration with long-term architecture and security, and periodic in-person travel.

EnergyHub seeks a Senior Software Engineer for the Client Connections team to design and implement backend services and client-facing REST APIs, integrate with distributed services, ensure security and monitoring, and collaborate with product and engineering. Requires 5+ years of professional software engineering experience, strong Java/Spring expertise, REST API experience, and familiarity with PostgreSQL, CI/CD, and modern security practices.

Staff-level engineering role responsible for designing, developing, and maintaining backend services and scalable APIs using technologies including Go, Node/TypeScript, GraphQL, and PostgreSQL. Role involves CI/CD, AWS (Lambda, Fargate), containerization (Docker, Kubernetes), troubleshooting production issues, producing technical design documentation, and mentoring junior engineers. Requires BS or advanced degree in computer science or equivalent experience and 8-12 years of software development experience.

Founding management role for the SSCS (Software Supply Chain Security) Add-On: guide a backend engineering team building features such as dependency enforcement, build provenance, malicious package detection, and artifact signing. Responsibilities include driving delivery to GA milestones, hiring and developing engineers, coordinating roadmap and cross-team dependencies, and improving engineering quality in a distributed, asynchronous environment.

Grafana Labs is hiring a Staff AI Engineer (remote, applicants in US time zones) to own AI agent infrastructure and an automation platform for GTM teams. Responsibilities include building multi-agent architectures, LLM integrations, RAG pipelines, backend APIs/CLIs/microservices (GCP/BigQuery/serverless), observability, governance, and self-service automation. Requirements include 8+ years software engineering, 2+ years applying LLMs in production, strong Python and Node.js skills, experience with orchestration frameworks and production monitoring, and familiarity with Google Cloud/BigQuery.

Own end-to-end design, implementation, deployment, and operation of multi-agent AI systems, LLM integrations, and backend services that connect models to internal and third-party data (BigQuery, CRMs, Slack). Define platform APIs, data models, governance, and observability; build scalable serverless/containerized services on GCP; and partner with RevOps, GTM systems, and Data Engineering to deliver self-service automation for Sales, Customer Success, and Marketing. Role is remote for Canada time zones.

Lead complex, cross-team technical initiatives and shape architecture and engineering practices at Karat. Role requires 10+ years of post-internship experience with modern languages (Ruby, Python, React, TypeScript/JavaScript), expertise in microservices, APIs (REST/GraphQL), cloud platforms (AWS/GCP/Azure), DevOps and distributed systems, plus client-facing engagement and mentoring. Applications must be in English and candidates must reside in Bengaluru.