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Senior Backend Engineer (Kotlin / Java)
Senior backend engineer on Fourthwall's single Kotlin monolith — a creator-ecommerce platform and merchant of record handling payments, refunds, payouts, tax, manufacturing and shipping integrations. Remote in Poland (B2B), using Spring Boot, jOOQ and PostgreSQL on Google Cloud, with coding agents and backend on-call part of the role.
Senior Backend Developer
Senior Backend Developer in Bangalore designing, building, and maintaining scalable Python backend services using Django, Flask, and FastAPI. Day-to-day work spans PostgreSQL database design, REST APIs and microservices, AWS deployment (Lambda, EC2, S3, RDS), and Docker/Git-based workflows.
Senior Backend Engineer (Distributed Systems)
Senior Backend Engineer at Virtusa (Hyderabad/Chennai/Bengaluru) designing and operating high-throughput, event-driven data streaming pipelines. Day to day involves writing high-performance multithreaded Java applications, architecting Apache Kafka producer/consumer systems, and running distributed services on AWS EC2.
Senior Backend Java Developer
Six-month contract role for a senior backend Java developer in Toronto (hybrid, 2-3 days in office weekly). The engineer builds Spring Boot microservices, REST API integrations, Azure cloud deployments, and SQL/PostgreSQL solutions. Requires 8+ years of Java experience and professional fluency in English and Spanish; pays C$50/hour inclusive.
Senior Back-End (API) Engineer
Senior back-end engineer building scalable APIs and data-intensive services in Node.js, JavaScript, and pure PostgreSQL (no ORM) for a US real-estate tech platform combining CRM, marketing, communication and workflows. Remote from Poland, B2B, with end-to-end feature ownership and ~4h daily overlap with the US team.
Senior Java Backend Developer
Senior Java Backend Developer who designs, builds, and maintains scalable, high-performance server-side applications in Java, integrates them with front-end work, and optimizes/debugs for performance using RESTful APIs and microservices. On-site roles in Hyderabad and Pune.
Remote Senior Backend Engineer — Python/Django
Senior Backend Engineer building and maintaining server-side systems in Python and Django: designing RESTful APIs, optimizing performance, ensuring data security, and contributing to architecture. Fully remote position for candidates based anywhere in South Africa, working with a globally distributed team.
Senior Backend Engineer (Python/Django)
Senior Backend Engineer building and maintaining server-side services in Python/Django: designing REST APIs, optimizing performance and database queries, and ensuring data security. Fully remote role (work from anywhere within South Africa) on a globally distributed team.
Разработчик CRM на Битрикс24
Развивает коробочную CRM на Битрикс24 для АИС «Московская билетная система в сфере культуры»: бизнес-процессы в смарт-процессах, интеграции с билетной системой, 1С, ITSM и документооборотом, а также PHP-разработка (ядро D7) того, что не закрывается настройкой. Гибридный график из офиса у метро Арбатская в Москве.
Senior Backend Software Engineer
Senior Backend Engineer at Weave (NYSE: WEAV) designing and scaling Go microservices and APIs for its all-in-one healthcare practice platform (scheduling, payments, communications) used by 30,000+ practices. 100% remote within India, with architecture ownership, on-call duty, and mentoring.
Senior Software Backend Engineer, Market Pricing
Build scalable backend systems for a compensation platform that uses AI and real-time data to help companies price jobs and benchmark pay.
Senior Backend .NET Developer — Bouw mee aan duurzame energie
Senior backend developer building services and integrations for an energy-transition platform in C#/.NET Core, also supporting WPF applications. On-site role based in Ghent at least 4 days per week, participating in CI/CD with a focus on quality, maintainability, and data-driven work.
[Coupang Pay] Sr. Back-end Engineer (Fintech Developer Platform)
Senior back-end engineer on Coupang Pay's fintech developer platform team, designing and running the platform services that keep large-scale payment traffic stable — including high-availability/DR architecture, internal CI/CD and DevOps tooling, and financial-security compliance. Stack includes Python/Go/Java/Kotlin on AWS with Docker/Kubernetes and Grafana/Loki/Prometheus observability.
[Coupang Pay] Sr. Back-end Engineer [L5] (Fintech Developer Platform)
Senior backend engineer on Coupang Pay's fintech developer platform team, designing and operating internal platform services that handle large-scale payment traffic — including high-availability/disaster-recovery architecture, CI/CD and DevOps tooling, and security/compliance. Core stack: Linux, Docker/Kubernetes, AWS, Python/Go/Java/Kotlin, and Grafana/Prometheus/Loki monitoring. Note: this posti
[Coupang Pay] Senior Back-end Engineer (Pay Test Operations)
Staff Back-end Engineer at Coupang Pay designing and building fintech infrastructure and platform services. The role focuses on HA/DR architecture, CI/CD optimization, and solving complex system issues for large-scale payment operations using Java, microservices, and cloud technologies.
Senior, Back-end Engineer(CX) - Coupang Play
Senior back-end engineer on Coupang Play's CX team, leading new API development for live sports streaming and discovery and building/operating highly available, low-latency distributed backend systems serving millions of viewers. Core stack includes Go/Java/JavaScript/Node.js on modern cloud (AWS/GCP).
Sr. Director, Back-End Engineering
The Sr. Director of TestOps will lead the strategy and development of a company-wide, automated testing platform to improve continuous delivery and release quality. This role involves managing engineering teams to build scalable test infrastructure, AI-assisted testing tools, and resilience validation systems for a large-scale distributed ecosystem.