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Senior Backend Engineer - Trading/Blockchain Infra
Senior backend engineer for a high-frequency trading core team in Hong Kong, architecting low-latency trading infrastructure (order routing, clearing/settlement) and on-chain fund channels (wallets, deposits/withdrawals). Stack: Go/C++/Rust, Redis, Kafka, gRPC, PostgreSQL, Docker/Kubernetes on AWS/GCP.
Senior DevOps Engineer | Java/Spring Boot | SAFe
DevOps engineer at the Dutch Ministry of Defence (Grens & Migratie subdomain) in Den Haag, working in a Scrum/ART team on 24/7 operational systems and contributing to CI/CD, integrations, and architecture choices. Requires 4+ years of experience with Spring Boot, XML, JSON, gRPC, and SAFe; hybrid with max 2 days WFH.
BackEnd Developer
Backend developer at Sourceful ICT, a company that builds custom applications for clients. You'll design secure, scalable services using C#/.NET Core with microservices and clean architecture patterns, expose REST/gRPC APIs, model SQL data, and collaborate closely with the design team in an Agile, international environment.
Senior Java Developer — Impactful Retail Tech, Lisbon
Senior Java Developer at GEBIT Solutions in Lisbon building retail software that helps millions of people shop efficiently. Day to day: collaborating in agile, hybrid teams on a modern Java stack — Java SE/EE, UML design, REST/gRPC services, and testing with JUnit 5 and Mockito.
(Senior) Java Developer (f/m/d)
Builds and maintains the IT systems Gebit Solutions provides to leading retail companies, working in small agile Scrum teams from Lisbon on a hybrid model. Day-to-day work centers on modern Java (SE/EE), REST/gRPC services, Dart/Flutter web and mobile work, and automated tests with JUnit 5 and Mockito.
Senior Backend Go Developer
Senior backend developer building a multilanguage, cloud-native loan-broker platform for fintech client Axo Group — owning Go services on AWS end-to-end (APIs, event-driven queues/jobs, PostgreSQL) in an AI-first workflow using Claude Code. Hybrid: 2 days/week from the Lisbon office.
Senior Full-Stack Developer (Node.js / Next.js)
Senior full-stack developer at IT consultancy Decskill (part of Astek Group) building modern web apps with Next.js, Node.js and Nest.js, developing REST/gRPC APIs and working with MongoDB and PostgreSQL. Hybrid role in Portugal seeking 10+ years of experience and fluent Portuguese and English.
Backend go developer in fintech
Senior backend engineer owning Go feature delivery end to end on AWS (Lambda, EventBridge, SQS, RDS) for a fintech: event-driven APIs, PostgreSQL tuning, ADR/HLD documentation, CI/CD, and GDPR/EU AI Act compliance. Mentors juniors and reviews AI-agent (Claude Code) output. Hybrid Lisbon: 2 office days, 3 from home.
Robotics Infrastructure Engineer
Builds edge-to-cloud infrastructure for deployed robot fleets: production C++/Go on-device software, secure low-latency robot-cloud data pipelines, OTA update systems, and fleet telemetry/monitoring tooling using AWS/GCP, Terraform, and Docker. On-site in Pittsburgh; no visa sponsorship.
Forward Deployed Java Engineer
Senior forward-deployed engineer on a 6+ month contract embedded with a global bank in Mississauga: building production Java (Spring Boot) and Python apps for trading/risk workflows, designing CI/CD with Tekton and Jenkins on OpenShift/Kubernetes and cloud, and working across Oracle, SQL Server, and MongoDB. Remote for now, possibly hybrid onsite after conversion.
Forward Deployed Java Engineer
Contract Senior Forward Deployed Java Engineer (SDET/Quality Engineering Architect) embedded with a global bank in Mississauga, building production-ready Java/Python applications and CI/CD pipelines for high-throughput trading platforms while working directly with business stakeholders. 6+ month contract with possible extension or perm conversion.
Lead Software Engineer (Mobile/App)
Hands-on lead engineer at Searce building native mobile apps (Swift/Kotlin) for clients: architecting, writing production code, reviewing, and mentoring a small team, while contributing across backend microservices, web front ends, and GCP/AWS cloud, and owning measurable outcomes for the client.
.NET/Go Core Cloud Engineer
Wynagrodzenie umowa o pracę: 15000 – 18000 PLN / mies. brutto Department Description The Core Platform and Services team is responsible for the development and operations of critical cloud infrastructure, platform…
Java Developer
Backend Java developer (3+ yrs) in Warsaw building a new system supporting group-insurance offer processes: designing Spring microservices, REST/SOAP/gRPC integrations, SQL databases and RabbitMQ messaging; optional Angular frontend work.
Principal Big Data Engineer (Contract Role)
Contract role in Singapore for a principal big data engineer to architect and run a production big data platform: Flink streaming and Hive/HDFS batch on YARN, multi-cluster governance, and real-time transaction/billing/P&L analytics. Core stack is Java/Spring microservices and SQL (MySQL, TiDB), with Spark, Kafka and Trino a plus.
Principal Big Data Engineer (Contract Role)
Principal-level contract role leading architecture and operation of a big data platform: Flink streaming and Hive/HDFS batch pipelines, YARN multi-cluster management, and real-time transaction/billing/P&L analytics services. Built primarily in Java (Spring/Spring Cloud) with strong SQL on MySQL/TiDB; includes mentoring and reliability work.
Staff Software Engineer
Staff engineer on Harness's Feature Management & Experimentation team, designing and building scalable Java/Go backend services that deliver feature flags at global scale. Day-to-day: distributed microservices on AWS with PostgreSQL, Redis, gRPC/REST APIs, Docker and Kubernetes, plus mentoring and driving technical leadership.