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Senior Python Developer @ Link Group

Senior Python Developer building solutions for managing financial accounts and investments on a finance/stock-exchange project. Day to day: developing and maintaining high-quality code in Agile teams, designing technical solutions, debugging production issues, and mentoring juniors using Python with Django or Flask, RESTful APIs, SQL/NoSQL databases, Git, CI/CD, and microservices.

Agile API CI/CD Containerization Django +10 skills

Senior Software Developer (Java) @ Vyntra Global

Build and maintain Java backend services for Vyntra's financial crime platform, which helps banks detect fraud and prevent money laundering by processing large transaction data volumes in real time. Works in a small agile team in Warsaw (on-site 3 days/week) with Java, Spring Boot, Kafka, Docker/Kubernetes, and SQL.

Agile AI Angular Cloud Distributed Systems +12 skills

Senior Java Developer @ Antal

HybridEuropeContractSenior

Senior Java Developer (hybrid, Kraków) building high-performance, low-latency backend services and microservices for trading and risk-related systems. Core stack: Java 11+, REST, microservices, messaging (MQ), SQL with Postgres/Sybase. B2B contract at 190-230 PLN/hour.

Agile API CI/CD Java Microservices +3 skills

190 – 230 PLN / hr

Senior Java Developer @ Connectis_

Senior Java Developer building new features and services for a leading Polish bank's ecosystem while keeping existing components stable through reviews and improvements. Day-to-day work uses Java 17+, Spring (MVC/Data), Kafka, and relational and non-relational databases (MS SQL, Oracle, Elasticsearch, Redis) in distributed Scrum teams.

Azure Docker Elasticsearch Java JavaScript +11 skills

Senior Java Developer @ Upvanta

Senior Java Developer joining a team integrating with an external system via REST API. Day-to-day: Java/Spring Boot backend work, building resilient REST clients (WebClient/RestTemplate) with retry/timeout/idempotency, mTLS, containerization, and E2E testing. ISO 8583 or payments experience is mandatory.

API Java REST Spring

Senior Java Developer @ Iteamly

RemoteEuropeSenior

Senior Java Engineer building cloud-native backend services (Java, Spring Boot, AWS, microservices) for a platform used by global Life Sciences and pharmaceutical organisations to analyse potential adverse drug effects. Fully remote role based in Poland with system design and hands-on development.

Automation AWS Cloud Cloud Native Event Driven Architecture +7 skills

Senior Java Developer @ mubi.pl

Senior Java Developer building and maintaining an insurance comparison and sales platform made up of dozens of microservices at mubi.pl, an insurance company developing software in-house. Daily work centers on Java/Spring Boot microservices, external integrations, tests, code review, and AI-assisted development with Claude Code.

Agile AI API Claude Code Docker +12 skills

Impact Fund Denmark (tidl. Investeringsfonden for Udviklingslande)

(Senior) Power Apps & Web Application Developer (Dynamics 365 & Dataverse)

Build the digital backbone that powers our Investment, Risk, Valuation and Finance teams Do you want to be hands-on in building the platform that powers how we manage every investment, from lead through to exit? And…

API Automation Azure Azure DevOps Backbone.js +14 skills

Senior Software Engineer

UKFull-timeSenior

Senior Software Engineer £90,000 GBP Onsite WORKING Location: Manchester, North West - United Kingdom Type: Permanent An exciting opportunity awaits to join a global banking powerhouse as they seek to appoint an…

Senior Software Developer - Databricks

North AmericaSenior

Build the backbone of scalable data platforms at Coveo As a Senior Software Developer within the Data Platform’s Infrastructure team, you will lead efforts to improve the reliability, cost efficiency and platform…

AI Backbone.js CI/CD Databricks Delta Lake +10 skills

Senior Systems Software Engineer

Open 95d RemoteNorth AmericaSenior

Zoo is hiring a Senior Systems Software Engineer (Los Angeles or remote) to own the reliability, automation, and evolution of the core systems behind its cloud-native CAD/AI hardware design platform. The work is backend, infrastructure, and systems-level engineering in Rust, spanning databases, distributed services, observability, IaC, integrations, and occasional frontend fixes.

AI Analytics API Api Design Authentication +13 skills

145K – 195K $

Senior Java Developer (M/F)

Sysmatch, an IT consulting and outsourcing firm, is hiring a Senior Java Developer in Lisbon (hybrid, 2-3 days/week on-site) to build and maintain scalable backend services for financial data platforms — designing REST APIs and microservices, writing unit tests, and contributing to CI/CD pipelines using Java 21, Spring Boot, and PostgreSQL.

API CI/CD Git Java PostgreSQL +2 skills

Senior Python Developer

HybridEuropeSenior

Decskill, an IT consulting firm, is hiring a Senior Python Developer for a hybrid project in Portugal. The role involves designing and maintaining Python applications, building REST APIs and backend services, and collaborating with product, QA, and DevOps teams using frameworks like Django, Flask, or FastAPI.

API DevOps Django FastAPI Flask +7 skills

Not Your Average Start-Up

Senior PHP Developer (Payments)

Open 18d RemoteEuropeSenior

Senior PHP developer to build and scale a card payments platform from scratch for high-risk merchants — integrating acquirers, PSPs and processors, designing APIs and backend payment flows (3DS2, recurring, card-on-file). A solo/first-engineer, AI-first startup environment.

AI API Authentication PHP

TAN: PAN: First American India Pvt Ltd

Senior Software Engineer

Open 73d APACFull-timeSenior

Senior full-stack engineer (5+ yrs) building First American India's Vestify platform: scalable backend services with NestJS, Prisma, PostgreSQL, and Redis plus modern frontends in Next.js, React, and TypeScript. Includes automated testing, OpenTelemetry observability, LaunchDarkly feature flags, and mandated AI-assisted tooling (Claude/Cursor, MCP, Copilot).

A/B Testing AI Analytics API Authentication +26 skills

Senior Systems Engineer

North AmericaSenior

Senior Systems Engineer at GovCIO who designs, deploys, and optimizes secure, scalable cloud and on-prem infrastructure for federal customers. Day to day involves automation for provisioning and configuration, ensuring reliability, performance, and compliance, and mentoring junior engineers while partnering with security and DevOps teams.

Automation Cloud DevOps

Senior Systems Engineer (India Office)

Open 90d APACSenior

Senior Systems Engineer at Red Cup IT, an MSP in Jaipur: acts as the final Tier 3 escalation point and infrastructure project architect for client environments — leading server/Microsoft 365/Azure migrations, virtualization, networking, and backup/DR work using RMM/PSA toolsets.

Azure Azure AD Cisco Cloud DHCP +13 skills

Senior IT Systems Engineer

Open 90d RemoteNorth AmericaSenior

Designs, deploys, and manages the organization's IT infrastructure day to day — Windows/Linux servers, virtualization, networks, and cloud environments (AWS/Azure/GCP) — with a focus on performance, security, monitoring, patching, and documentation. Also leads complex IT projects and mentors junior engineers. Remote role based in Los Angeles.

AWS Azure Cisco Cissp Cloud +15 skills

MSP Senior Systems Engineer

Open 90d RemoteNorth AmericaSenior

A senior systems engineer at a managed services provider (MSP) who designs, deploys, and supports client infrastructure — Windows Server, Active Directory, VMware/Hyper-V, Microsoft 365, Azure/AWS, and networking/firewalls — acting as the tier-3 escalation point and leading cloud migrations and infrastructure projects.

Active Directory Authentication Automation AWS Azure +15 skills

Senior Software Engineer

HybridNorth AmericaSenior

Senior Software Engineer at Refinitiv (Thomson Reuters) in Toronto designing, building, and operating scalable cloud-native backend services, REST APIs, and distributed microservices. Core stack is Java, Spring Boot, AWS, and PostgreSQL, with end-to-end ownership from design through production support and mentoring of other engineers.

AI API AWS CAD CI/CD +24 skills

105K – 155K CAD