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Designs, develops, and maintains scalable Java backend services using Spring Boot, microservices, and REST APIs, integrating SQL/NoSQL databases and working with DevOps on CI/CD pipelines and cloud deployments (AWS/Azure/GCP). Hybrid role in Charlotte, NC requiring 6+ years of Java experience and team leadership.
Senior engineer on an AI Co-scientist product, building an LLM-powered writing agent that reviews, edits, and fact-checks draft research papers. Day-to-day is full-stack work: Ruby on Rails/PostgreSQL/Redis/Sidekiq backends, React + TypeScript frontends, and AWS/Terraform infrastructure with production LLM integrations.
Early senior engineer (IC-focused tech lead) at TrueMark, an NYC edtech startup helping schools and universities teach writing in the AI era. Day to day you design backend systems for real-time writing-integrity analysis, typing-behavior ML models, AI grading, and similarity search — full-stack with Python and React/NextJS, in-person alongside the founders.
Fullstack engineer (4–10 yrs experience) joining a healthcare-tech startup building an operating system for autism care, hybrid in New York (3 days onsite). The role spans revenue infrastructure, payments, APIs, database design, and AI-native clinical workflows, with familiarity expected in Python, NoSQL, MongoDB, or Firebase.
Joins a venture-backed startup's core engineering team to design and build ultra-low-latency quantitative trading infrastructure in Rust, integrating centralized and decentralized exchange APIs and optimizing critical execution paths while working directly with the founders.
Senior Backend Engineer building scalable APIs and microservices for a fintech financial-data platform that uses AI, NLP, and ML to extract and structure financial data. Core stack is Python/FastAPI, GraphQL and REST, with databases/data warehouses and DevOps practices; predominantly remote with a few days per month in the New York office.
Day to day, this person designs, develops, enhances, and maintains enterprise-level backend applications, primarily in Java with one existing application in Scala, while collaborating with developers, architects, and cross-functional teams. The role also calls for using AI-assisted development tools such as Kiro and Claude.
A hands-on senior backend engineer role building a multi-tenant SaaS application on AWS: writing high-performance, secure APIs in C#/.NET Core that query DynamoDB, PostgreSQL, and external client data sources, while collaborating with DevOps and network engineers on infrastructure and hybrid connectivity.
Builds Android mobile applications for BeaconFire Inc., working primarily in Kotlin (plus Java and Python knowledge) and using Android architecture patterns and frameworks such as Jetpack, Coroutines, and MVVM.
Software engineer at a high-growth AI healthcare technology company in NYC (hybrid, 3–4 days onsite in Flatiron) building consumer-facing patient and physician apps from zero to one — full-stack work with TypeScript/React/Next.js, Node.js, React Native, PostgreSQL, AWS, Terraform and AI/EMR integrations. $190k–$225k plus equity.
Software engineering roles at L3Harris in Fort Wayne, IN, developing mission-critical space systems for national security. Positions are on-site only and filled via a virtual hiring event; candidates need a degree or equivalent experience (3+ yrs), aerospace/defense background, and US citizenship with security-clearance eligibility.
Lead embedded software architect/developer for FPGA SoC and CPU SoC image processing and control in battery-powered night vision goggles, wideband RF signal processing, and synthetic aperture radar systems. Core tech: Xilinx Vitis/Vivado, embedded Linux/Yocto, CUDA on NVIDIA Jetson, and real-time Arm multicore development.
Software engineer joining Graf Research's Enverité team to build cross-platform desktop EDA (electronic design automation) applications in C/C++ and Python on Linux and Windows that assure the security of critical microelectronics. On-site role at the Blacksburg VA, Atlanta GA, or Dayton OH office; U.S. citizenship required.
Builds and maintains the real-time monitor and control software that runs NRAO's radio telescopes (GBT, VLA, VLBA) — configuring hardware, RF/IF electronics, and DSP instruments, and coordinating distributed devices with precise timing. Core stack: C, C++, and Python on Linux, with networking protocols, version control, and CI/CD.
Implements and verifies safety-critical avionics software at an aerospace instruments manufacturer: plans DO-178C/DO-254 lifecycle processes, verifies microcontroller and FPGA designs, writes embedded C code, builds PC-based test tools, and troubleshoots prototype and certified code on target hardware for aircraft instruments and power systems.
Develop, integrate, and optimize real-time flight-control software for autonomous unmanned aircraft: flight stack, state estimation, sensor fusion, autopilot, and mission-planning capabilities in C++, Python, and/or Rust on platforms like PX4/ArduPilot, validated through SIL/HIL simulation, bench testing, and flight tests. Onsite in Scottsdale, AZ; U.S. citizenship required.
Six-month contract-to-hire, remote Network Software Engineer (via The Carrera Agency) designing and evolving Linux networking software in C for a massively parallel processing (MPP) platform that underpins database and AI solutions. Day-to-day spans kernel/driver development, RDMA/InfiniBand performance work, and system-level debugging.
Senior backend engineer at a climate-tech startup building the platform that turns farm and food supply-chain data into decisions. Day to day: build services, APIs, ingestion pipelines, and data processing workflows in TypeScript/Node.js and Python, with SQL, cloud infrastructure, and IaC.
Contract AI software engineer (placed by staffing firm SGA with a banking client, hybrid) who designs and delivers backend guardrail, enforcement, and validation services and APIs governing how AI agentic systems behave across services. Core stack: Python, TypeScript, AWS (Lambda, Fargate, API Gateway), Terraform, with LLM/agent safety work.
United Global Technologies is hiring a Senior Backend Engineer to build the data layer, REST APIs, and system integrations (IBM DOORS Next, PTC Windchill) for a greenfield enterprise data platform using Python/FastAPI, SQLAlchemy 2.0, and PostgreSQL. Remote within the U.S.; U.S. citizenship is contractually required.
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