Latest Software Engineering Jobs

Senior Mission Concept Engineer

Lead the development of advanced space mission concepts from initial customer discussions to fully formed proposals, translating requirements into technically sound and commercially viable solutions. Work across Earth observation, telecommunications, and technology demonstration domains, defining end-to-end mission architectures and mentoring team members. Collaborate with engineering, commercial, and project teams to shape missions and drive innovation in mission design tools and methodologies.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom

Embedded Systems Engineer

Design and develop real-time embedded software and firmware for satellite communications systems, spanning both space and ground infrastructure. Work on FPGA-based solutions, low-level hardware control, and high-reliability communication protocols in a multidisciplinary engineering environment. Focus on fault tolerance, performance optimisation, and integration across RF, DSP, and embedded systems.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Payload Product Assurance Manager - IRIS² - F/H

Oversee quality assurance for satellite payload systems within the IRIS² programme, ensuring compliance with contractual and internal standards. Act as the primary quality interface with the client, coordinate cross-functional quality activities, manage risk and non-conformances, and validate product conformance across design, manufacturing, and testing phases. Work within a high-tech aerospace environment focused on European sovereignty and innovation.

Thales Alenia Space France

Satcom Mission Analysis Engineer

This role involves defining and optimising the orbital architecture of a satellite constellation, with a focus on astrodynamics, inter-satellite links, and mission performance. The engineer will model orbital perturbations, calculate pointing and tracking requirements for optical links, ensure regulatory compliance, and integrate simulations into digital twin systems to support reliable global connectivity.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Quality Control (QC) Engineer (shift based)

The role involves hands-on quality control during satellite build, integration, and testing phases, ensuring compliance with ECSS and ISO9001 standards. The engineer performs inspections, manages non-conformances, supports supplier quality, and maintains traceability across the production lifecycle. Work is conducted on a rotating 24/7 shift pattern at the Harwell site to support continuous satellite manufacturing operations.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent Shift-work

Satcom Payload Architect

The role involves defining the end-to-end technical architecture of advanced satellite communication payloads for low Earth orbit (LEO) constellations. You will translate service requirements into detailed technical specifications for RF, digital, and optical subsystems, perform microwave link analysis, and ensure alignment between payload and spacecraft design. The position requires deep systems engineering expertise in satellite communications, with a focus on flexible, high-performance, and SWaP-optimised solutions.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Senior Network Engineer

This role involves designing and implementing advanced network architectures for a dynamic low Earth orbit (LEO) satellite constellation. The engineer will develop custom routing solutions using Segment Routing and IS-IS, integrate control and data planes on specialised hardware, and validate performance under orbital dynamics using simulations and digital twins. Collaboration with cross-functional teams is key to evolving a resilient, high-throughput space-based communications platform.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Air Interface Architect

The Air Interface Architect will define and govern the physical and MAC layer architecture for Open Cosmos' LEO satellite communication system, ensuring high performance and scalability. The role involves designing waveforms, resource allocation, coding, modulation, and handover frameworks, while aligning with 3GPP NR-NTN and DVB-S2X standards. Responsibilities include system-level simulation, modem architecture definition, and integration with core network functions for non-terrestrial networks.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Senior Digital Comms Payload Engineer

This role involves defining digital subsystem architectures for satellite communication payloads, translating system requirements into scalable processing solutions, and leading digital-in-the-loop prototyping. The engineer will assess advanced silicon technologies for space applications, define high-speed interfaces, and support secure hardware integration across space and ground systems. Collaboration spans payload, network, and security domains to deliver resilient, high-performance satellite comms solutions.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

Quality and Product Assurance Manager

The Quality and Product Assurance Manager will lead the development and continuous improvement of processes for producing high-performance space hardware and software. This hands-on role involves collaborating with internal and external stakeholders to ensure customer needs are met and exceeded, while driving efficiency and reliability across operations.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent

2nd Line IT Support Engineer

This role involves resolving escalated IT support issues across Windows, Linux, macOS, and mobile platforms, managing identity and access systems, and supporting infrastructure such as networks, MDM solutions, and cloud services. The engineer will troubleshoot complex technical problems, manage device lifecycles, and contribute to system upgrades and security hardening. Emphasis is placed on automation, user support, and maintaining secure, compliant IT environments in a growing space technology company.

Open Cosmos Ltd Didcot, OX11 0RL, United Kingdom
On-site Permanent