Soc Architecture Engineer

An SoC (System-on-Chip) architecture engineer helps decide how a computer chip should be structured before anyone writes the detailed logic for it — how many CPU cores, how memory and interconnects are arranged, how much power and silicon area each block gets, and whether the design will hit its performance targets. The work is mostly modelling, measurement and analysis: building or running software models of a proposed chip, running realistic workloads through them, and feeding the results back into design decisions. It's done inside semiconductor companies, IP (intellectual property) licensors who sell chip designs to others, and increasingly in-house silicon teams at phone, automotive, networking and cloud companies.

Starting salary: £32k–£42k
Live graduate jobs: 1 open now
Main way in: Graduate schemes at semiconductor and chip design companies
They usually ask for: A degree in electronic engineering, computer engineering…

Approximate graduate salary

Typically around £32,000–£42,000 to start for a graduate, with the upper end more common for MSc or PhD entrants and at larger chip companies in Cambridge and the South East. This is approximate and varies a lot by employer, location and whether the role sits in a well-funded silicon team or a smaller systems company.

What you'd actually do

Running performance simulations of a proposed chip configuration — e.g. varying cache sizes, memory bandwidth or the number of cores — and producing charts showing how a benchmark or real workload responds
Writing and maintaining C++ or SystemC models of chip blocks (a 'model' here is software that mimics the timing and behaviour of hardware without being the actual hardware design)
Scripting in Python to automate sweeps of configuration options, parse huge simulation logs and turn them into comparable numbers
Reading specifications — bus and interconnect protocols, memory standards, instruction set documentation — and checking that a proposed design actually complies with them

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Writing architecture specification documents and reviewing them with RTL designers (the engineers who write the hardware description code that becomes the chip), verification engineers, physical design and software teams
Sitting in trade-off discussions where power, performance, silicon area and schedule all conflict, and being expected to bring data rather than opinion
Profiling real software workloads (graphics, AI inference, networking packets, automotive sensor processing) to work out what the hardware is actually spending its time on

How graduates get in

Graduate schemes at semiconductor and chip design companies — the most common route. These usually recruit in the autumn for the following summer and often rotate graduates through modelling, verification and design before placing them.
Direct entry into a junior architecture or performance modelling post. Less common straight from a bachelor's degree, because teams often want some prior exposure to microarchitecture; more realistic after a master's or an industrial placement.
A year-in-industry placement or summer internship with a chip company, converted into a graduate offer. This is a very strong route and worth planning for in second year.
An MSc or MEng in computer architecture, embedded systems, VLSI or digital design — common, and sometimes effectively expected for pure architecture roles rather than general hardware engineering.

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A PhD in computer architecture, memory systems, accelerators or similar. Normal for research-leaning architecture teams; not required for mainstream roles.
Sideways from an adjacent role — RTL design, design verification, embedded software or firmware — after a few years. Many architects arrive this way rather than starting there, so a graduate job in verification or RTL is a legitimate stepping stone, not a consolation prize.

What employers ask for

A degree in electronic engineering, computer engineering, computer science, physics or maths. The subject matters more here than in many graduate jobs — you need to have met digital logic, computer architecture and ideally some hardware description language work somewhere.
Typically a 2:1 or above; some employers set a 2:1 as a hard filter, others will look at a strong 2:2 with relevant project or placement experience. This varies by employer.
Evidence you can program — C or C++ for modelling, Python for tooling. Not necessarily to professional software-engineer standard, but enough to build and debug a non-trivial simulation.
Familiarity with how processors actually work: pipelines, caches, memory hierarchy, interconnects. A university computer architecture module, an FPGA project, or a self-built CPU on an FPGA board all count as evidence.

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Exposure to Verilog, SystemVerilog or VHDL is commonly asked for even in architecture roles, because you need to talk credibly to the designers. Depth is not usually expected at graduate level.
Security clearance or UK residency requirements apply at some defence, aerospace and government-adjacent employers; export control rules can also restrict who works on certain projects.

Skills that matter

Computer architecture fundamentals

Every decision — cache size, issue width, bus topology — depends on understanding where the bottlenecks in a processing system come from.

C++ and Python

Architecture work is largely writing, running and post-processing software models, so most of your actual keyboard time is coding rather than drawing block diagrams.

Quantitative analysis and benchmarking discipline

You will be asked 'how much faster?' and 'at what power cost?', and a result is worthless unless you can show the measurement was fair and repeatable.

Reading dense technical specifications accurately

Protocol and standards documents run to hundreds of pages and a misread clause can propagate into silicon that doesn't work.

Technical writing

An architecture specification is the contract that design, verification and software teams build from, so ambiguity in your document becomes bugs in someone else's work.

Arguing a case with data across teams

Architects rarely have authority over the teams they influence, so proposals get adopted on the strength of the evidence and the clarity of the explanation.

Putting these on a CV? We counted which skills 12,914 live graduate adverts ask for, and what to do with the answer — part of our application advice.

Where it leads

Graduate or junior engineer: running simulations others have set up, extending existing models, owning small blocks of analysis. Typically the first couple of years, though structures vary.
Architecture or performance engineer: owning the modelling and trade-off analysis for a subsystem — the memory system, an accelerator, the interconnect — and writing the specification for it.
Senior engineer / lead architect for a subsystem or a full SoC: setting the targets, arbitrating between competing teams, and being accountable when the chip misses its performance or power goals. Reaching this varies widely, from a handful of years to well over a decade depending on company size and product cadence.
Branching point: most people either go deeper technically (principal engineer, fellow, distinguished engineer — senior individual-contributor grades that exist at most chip companies and can pay as well as management) or move into engineering management and programme leadership.
Alternative moves that are common: into technical product or customer-facing roles at IP licensors, into research, into systems architecture at a company that buys rather than builds silicon, or into consultancy.

What people get wrong

“You'll be designing hardware — drawing circuits and writing Verilog all day.”

Most SoC architecture work is software: building and running C++/SystemC models, scripting experiments and analysing numbers. The hardware description language work largely sits with RTL design teams downstream of you.

“'Architect' means a senior title you get after a decade, so there's no graduate entry.”

Both things are true at once. Lead architect roles are senior, but graduate-level architecture, modelling and performance analysis posts genuinely exist and are the normal feeder into them.

“You need to know every detail of semiconductor physics and fabrication.”

Architecture sits well above the transistor. You need a working sense of what costs area and power at a given process node, but detailed physical and process knowledge belongs to physical design and silicon engineering teams.

“It's a niche British employer or two, so there are barely any jobs.”

The UK has a substantial chip design presence — Cambridge, Bristol, Cardiff, Edinburgh, Manchester and the Thames Valley among others — covering mobile, automotive, networking, AI accelerators, defence and in-house silicon teams at large technology firms.

Where this varies

The job title covers quite different work depending on the employer. At an IP licensor — a company that designs processor or graphics blocks and licenses them to chipmakers — architecture tends to be deeply quantitative, long-horizon and focused on microarchitecture research and specification. At a company building a complete product chip, the same title leans more towards system integration: picking and configuring third-party IP, budgeting memory bandwidth and power across the whole device, and resolving conflicts between teams. In defence, aerospace and automotive, safety and certification requirements (and sometimes security clearance) shape the work heavily and timescales are longer. Smaller start-ups will expect you to cross into RTL, verification or firmware rather than staying purely in architecture. Team culture also varies: some employers run formal graduate rotation schemes, others drop you straight onto a project with a mentor.

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General guidance about the role across the UK market, not about any specific employer. Entry routes and requirements vary — always check the individual job advert.