Software engineer Jobs

[Applicants: Be among the first 25 applicants | Industry: IT Services and IT Consulting | Type: Full-time | Level: Mid-Senior level] Citylitics delivers predictive intelligence on local utility & public infrastructure markets.What is Infrastructure? Climate change and extreme weather events are disrupting the basic infrastructure we took for granted for years.Citylitics is solving the hardest data problems in infrastructure while building the sales intelligence platform that enables a faster, more transparent, and more efficient infrastructure marketplace.

The position focuses on building and supporting robust, efficient, and secure cloud‑based services—from APIs to data pipelines—that enable real-time data visualisation and machine learning applications. Develop, test and maintain front end and back-end APIs to support access to geospatial, transport and planning data using established frameworks (e.g., FastAPI, Flask, Django, NodeJS).Apply standard security and access controls to applications and services in line with established practices and guidance.Support the use and maintenance of relational databases (e.g.

You will be directly responsible for designing, building, and optimizing the high-performance systems that drive our trading strategies. Your work will sit at the heart of our trading infrastructure, requiring a deep understanding of low-level systems programming, hardware awareness, and a passion for squeezing out the last ounce of performance.You Will:Design, develop, and maintain ultra-low-latency trading systems, market data feeds, and order execution engines.Optimize critical path code for nanosecond-level performance, focusing on CPU cache efficiency, memory access patterns, and kernel bypass techniques.Work closely with quantitative researchers and traders to translate complex trading models into robust, high-speed production code.Develop and enhance our in-house simulation, back-testing, and risk management frameworks.Continuously diagnose and eliminate performance bottlenecks throughout the entire trading stack (network, OS, application).Contribute to the full software lifecycle, from design and testing to deployment and monitoring in a live trading environment.What We Look For:Essential:Expert-level proficiency in modern C++ (C++17/20/23) with a strong emphasis on low-latency, high-frequency techniques.Deep knowledge of computer architecture: CPU pipelines, cache hierarchies, memory models (consistency, barriers), NUMA, and IPC.Proven experience with Linux/Unix systems programming, kernel tuning, and network programming (TCP/UDP, multicast, Solarflare/Exablaze APIs).A performance-obsessed mindset, with experience using profiling tools (perf, VTune, strace).Strong understanding of data structures and algorithms, with a focus on real-world application in high-concurrency environments.Excellent problem-solving skills and the ability to write clean, maintainable, and testable code under tight constraints.Highly Desirable:Direct experience in high-frequency trading (HFT), market-making, or electronic tradi...

[Applicants: Gehören Sie zu den ersten 25 Bewerber:innen.] Associate Software Engineer (C# / .NET)Remote (Germany)| FrankfurtI’m partnering with an established, international software company that buildsmission-critical systems used worldwide. They’re hiring anSoftware Engineerto contribute to alarge, long-term software platformthat underpins their core products.This is ahands-on engineering roleoffering exposure tocomplex systems, strong technical mentorship, and clear progression toward senior-level responsibility over time.What you’ll doDesign and implement new functionality within a large-scale software platformMaintain and improve existing code with a focus on reliability and maintainabilityParticipate in code reviews and learn from senior engineersDebug and resolve technical issues with support when neededContribute to ongoing improvements in code quality, tooling, and processesCollaborate closely with experienced engineers across the teamWhat they’re looking forCommercial experience withC# / .NETExperience working onnon-trivial or production software systemsInterest in building and maintaining complex, long-lived applicationsWillingness to learn, take ownership of tasks, and grow technicallyExposure toC++is a plus, but not requiredFluent inEnglish or GermanWhy consider this roleOpportunity to work on amature, globally used productExposure to real-world engineering challenges and large codebasesRemote-firstworking model with minimal on-site requirementsStrong technical mentorship and structured career progressionCompetitive compensation and benefits for an associate-level roleIf you’re an engineer looking todeepen your skills, work on meaningful software, and grow within a stable, international environment, this is a great next step.

Because we believe that your career path should be as unique as you are.Group SummaryMagna New Mobility is a business unit inside Magna International leveraging Magna’s technology building blocks, developing new capabilities, and entering new markets and use cases. Our products include advanced solutions for urban markets, industrial intralogistics, commercial and autonomous vehicles.Magna New Mobility is also creating advanced software solutions that integrate with next-generation hardware.

If you're ready to join a fast-growing, high-impact company that's reimagining resource management, then let's talk.About The RoleWe've come a long way in a short time, but there's still so much more we can do. That's where you come in.As part of our Engineering team, your key areas of focus will be enhancing product scalability and usability, helping consistently deliver features that support our customers' success.

Your role will require proficiency in at least one programming language (JavaScript, Python, C#, C++, HTML, SQL, or Swift) in order to solve coding problems (think LeetCode, HackerRank, etc). PayPal will handle any currency conversions from USD.

Your role will require proficiency in at least one programming language (JavaScript, Python, C#, C++, HTML, SQL, or Swift) in order to solve coding problems (think LeetCode, HackerRank, etc). PayPal will handle any currency conversions from USD.

Your role will require proficiency in at least one programming language (JavaScript, Python, C#, C++, HTML, SQL, or Swift) in order to solve coding problems (think LeetCode, HackerRank, etc). PayPal will handle any currency conversions from USD.